Merging upstream version 1.46.3.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

90 files changed, 0 insertions, 24966 deletions

diff --git a/collectors/python.d.plugin/python_modules/__init__.py b/collectors/python.d.plugin/python_modules/__init__.py
deleted file mode 100644
index e69de29bb..000000000
--- a/collectors/python.d.plugin/python_modules/__init__.py
+++ /dev/null
diff --git a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/ExecutableService.py b/collectors/python.d.plugin/python_modules/bases/FrameworkServices/ExecutableService.py
deleted file mode 100644
index a74b4239e..000000000
--- a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/ExecutableService.py
+++ /dev/null
@@ -1,91 +0,0 @@
-# -*- coding: utf-8 -*-
-# Description:
-# Author: Pawel Krupa (paulfantom)
-# Author: Ilya Mashchenko (ilyam8)
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-import os
-
-from subprocess import Popen, PIPE
-
-from bases.FrameworkServices.SimpleService import SimpleService
-from bases.collection import find_binary
-
-
-class ExecutableService(SimpleService):
-    def __init__(self, configuration=None, name=None):
-        SimpleService.__init__(self, configuration=configuration, name=name)
-        self.command = None
-
-    def _get_raw_data(self, stderr=False, command=None):
-        """
-        Get raw data from executed command
-        :return: <list>
-        """
-        command = command or self.command
-        self.debug("Executing command '{0}'".format(' '.join(command)))
-        try:
-            p = Popen(command, stdout=PIPE, stderr=PIPE)
-        except Exception as error:
-            self.error('Executing command {0} resulted in error: {1}'.format(command, error))
-            return None
-
-        data = list()
-        std = p.stderr if stderr else p.stdout
-        for line in std:
-            try:
-                data.append(line.decode('utf-8'))
-            except (TypeError, UnicodeDecodeError):
-                continue
-
-        return data
-
-    def check(self):
-        """
-        Parse basic configuration, check if command is whitelisted and is returning values
-        :return: <boolean>
-        """
-        # Preference: 1. "command" from configuration file 2. "command" from plugin (if specified)
-        if 'command' in self.configuration:
-            self.command = self.configuration['command']
-
-        # "command" must be: 1.not None 2. type <str>
-        if not (self.command and isinstance(self.command, str)):
-            self.error('Command is not defined or command type is not <str>')
-            return False
-
-        # Split "command" into: 1. command <str> 2. options <list>
-        command, opts = self.command.split()[0], self.command.split()[1:]
-
-        # Check for "bad" symbols in options. No pipes, redirects etc.
-        opts_list = ['&', '|', ';', '>', '<']
-        bad_opts = set(''.join(opts)) & set(opts_list)
-        if bad_opts:
-            self.error("Bad command argument(s): {opts}".format(opts=bad_opts))
-            return False
-
-        # Find absolute path ('echo' => '/bin/echo')
-        if '/' not in command:
-            command = find_binary(command)
-            if not command:
-                self.error('Can\'t locate "{command}" binary'.format(command=self.command))
-                return False
-        # Check if binary exist and executable
-        else:
-            if not os.access(command, os.X_OK):
-                self.error('"{binary}" is not executable'.format(binary=command))
-                return False
-
-        self.command = [command] + opts if opts else [command]
-
-        try:
-            data = self._get_data()
-        except Exception as error:
-            self.error('_get_data() failed. Command: {command}. Error: {error}'.format(command=self.command,
-                                                                                       error=error))
-            return False
-
-        if isinstance(data, dict) and data:
-            return True
-        self.error('Command "{command}" returned no data'.format(command=self.command))
-        return False
diff --git a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/LogService.py b/collectors/python.d.plugin/python_modules/bases/FrameworkServices/LogService.py
deleted file mode 100644
index a55e33f52..000000000
--- a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/LogService.py
+++ /dev/null
@@ -1,82 +0,0 @@
-# -*- coding: utf-8 -*-
-# Description:
-# Author: Pawel Krupa (paulfantom)
-# Author: Ilya Mashchenko (ilyam8)
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-from glob import glob
-import sys
-import os
-
-from bases.FrameworkServices.SimpleService import SimpleService
-
-
-class LogService(SimpleService):
-    def __init__(self, configuration=None, name=None):
-        SimpleService.__init__(self, configuration=configuration, name=name)
-        self.log_path = self.configuration.get('path')
-        self.__glob_path = self.log_path
-        self._last_position = 0
-        self.__re_find = dict(current=0, run=0, maximum=60)
-        self.__open_args = {'errors': 'replace'} if sys.version_info[0] > 2 else {}
-
-    def _get_raw_data(self):
-        """
-        Get log lines since last poll
-        :return: list
-        """
-        lines = list()
-        try:
-            if self.__re_find['current'] == self.__re_find['run']:
-                self._find_recent_log_file()
-            size = os.path.getsize(self.log_path)
-            if size == self._last_position:
-                self.__re_find['current'] += 1
-                return list()  # return empty list if nothing has changed
-            elif size < self._last_position:
-                self._last_position = 0  # read from beginning if file has shrunk
-
-            with open(self.log_path, **self.__open_args) as fp:
-                fp.seek(self._last_position)
-                for line in fp:
-                    lines.append(line)
-                self._last_position = fp.tell()
-                self.__re_find['current'] = 0
-        except (OSError, IOError) as error:
-            self.__re_find['current'] += 1
-            self.error(str(error))
-
-        return lines or None
-
-    def _find_recent_log_file(self):
-        """
-        :return:
-        """
-        self.__re_find['run'] = self.__re_find['maximum']
-        self.__re_find['current'] = 0
-        self.__glob_path = self.__glob_path or self.log_path  # workaround for modules w/o config files
-        path_list = glob(self.__glob_path)
-        if path_list:
-            self.log_path = max(path_list)
-            return True
-        return False
-
-    def check(self):
-        """
-        Parse basic configuration and check if log file exists
-        :return: boolean
-        """
-        if not self.log_path:
-            self.error('No path to log specified')
-            return None
-
-        if self._find_recent_log_file() and os.access(self.log_path, os.R_OK) and os.path.isfile(self.log_path):
-            return True
-        self.error('Cannot access {0}'.format(self.log_path))
-        return False
-
-    def create(self):
-        # set cursor at last byte of log file
-        self._last_position = os.path.getsize(self.log_path)
-        status = SimpleService.create(self)
-        return status
diff --git a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/MySQLService.py b/collectors/python.d.plugin/python_modules/bases/FrameworkServices/MySQLService.py
deleted file mode 100644
index 7f5c7d221..000000000
--- a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/MySQLService.py
+++ /dev/null
@@ -1,163 +0,0 @@
-# -*- coding: utf-8 -*-
-# Description:
-# Author: Ilya Mashchenko (ilyam8)
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-from sys import exc_info
-
-try:
-    import MySQLdb
-
-    PY_MYSQL = True
-except ImportError:
-    try:
-        import pymysql as MySQLdb
-
-        PY_MYSQL = True
-    except ImportError:
-        PY_MYSQL = False
-
-from bases.FrameworkServices.SimpleService import SimpleService
-
-
-class MySQLService(SimpleService):
-    def __init__(self, configuration=None, name=None):
-        SimpleService.__init__(self, configuration=configuration, name=name)
-        self.__connection = None
-        self.__conn_properties = dict()
-        self.extra_conn_properties = dict()
-        self.__queries = self.configuration.get('queries', dict())
-        self.queries = dict()
-
-    def __connect(self):
-        try:
-            connection = MySQLdb.connect(connect_timeout=self.update_every, **self.__conn_properties)
-        except (MySQLdb.MySQLError, TypeError, AttributeError) as error:
-            return None, str(error)
-        else:
-            return connection, None
-
-    def check(self):
-        def get_connection_properties(conf, extra_conf):
-            properties = dict()
-            if conf.get('user'):
-                properties['user'] = conf['user']
-            if conf.get('pass'):
-                properties['passwd'] = conf['pass']
-
-            if conf.get('socket'):
-                properties['unix_socket'] = conf['socket']
-            elif conf.get('host'):
-                properties['host'] = conf['host']
-                properties['port'] = int(conf.get('port', 3306))
-            elif conf.get('my.cnf'):
-                properties['read_default_file'] = conf['my.cnf']
-
-            if conf.get('ssl'):
-                properties['ssl'] = conf['ssl']
-
-            if isinstance(extra_conf, dict) and extra_conf:
-                properties.update(extra_conf)
-
-            return properties or None
-
-        def is_valid_queries_dict(raw_queries, log_error):
-            """
-            :param raw_queries: dict:
-            :param log_error: function:
-            :return: dict or None
-
-            raw_queries is valid when: type <dict> and not empty after is_valid_query(for all queries)
-            """
-
-            def is_valid_query(query):
-                return all([isinstance(query, str),
-                            query.startswith(('SELECT', 'select', 'SHOW', 'show'))])
-
-            if hasattr(raw_queries, 'keys') and raw_queries:
-                valid_queries = dict([(n, q) for n, q in raw_queries.items() if is_valid_query(q)])
-                bad_queries = set(raw_queries) - set(valid_queries)
-
-                if bad_queries:
-                    log_error('Removed query(s): {queries}'.format(queries=bad_queries))
-                return valid_queries
-            else:
-                log_error('Unsupported "queries" format. Must be not empty <dict>')
-                return None
-
-        if not PY_MYSQL:
-            self.error('MySQLdb or PyMySQL module is needed to use mysql.chart.py plugin')
-            return False
-
-        # Preference: 1. "queries" from the configuration file 2. "queries" from the module
-        self.queries = self.__queries or self.queries
-        # Check if "self.queries" exist, not empty and all queries are in valid format
-        self.queries = is_valid_queries_dict(self.queries, self.error)
-        if not self.queries:
-            return None
-
-        # Get connection properties
-        self.__conn_properties = get_connection_properties(self.configuration, self.extra_conn_properties)
-        if not self.__conn_properties:
-            self.error('Connection properties are missing')
-            return False
-
-        # Create connection to the database
-        self.__connection, error = self.__connect()
-        if error:
-            self.error('Can\'t establish connection to MySQL: {error}'.format(error=error))
-            return False
-
-        try:
-            data = self._get_data()
-        except Exception as error:
-            self.error('_get_data() failed. Error: {error}'.format(error=error))
-            return False
-
-        if isinstance(data, dict) and data:
-            return True
-        self.error("_get_data() returned no data or type is not <dict>")
-        return False
-
-    def _get_raw_data(self, description=None):
-        """
-        Get raw data from MySQL server
-        :return: dict: fetchall() or (fetchall(), description)
-        """
-
-        if not self.__connection:
-            self.__connection, error = self.__connect()
-            if error:
-                return None
-
-        raw_data = dict()
-        queries = dict(self.queries)
-        try:
-            cursor = self.__connection.cursor()
-            for name, query in queries.items():
-                try:
-                    cursor.execute(query)
-                except (MySQLdb.ProgrammingError, MySQLdb.OperationalError) as error:
-                    if self.__is_error_critical(err_class=exc_info()[0], err_text=str(error)):
-                        cursor.close()
-                        raise RuntimeError
-                    self.error('Removed query: {name}[{query}]. Error: error'.format(name=name,
-                                                                                     query=query,
-                                                                                     error=error))
-                    self.queries.pop(name)
-                    continue
-                else:
-                    raw_data[name] = (cursor.fetchall(), cursor.description) if description else cursor.fetchall()
-            cursor.close()
-            self.__connection.commit()
-        except (MySQLdb.MySQLError, RuntimeError, TypeError, AttributeError):
-            self.__connection.close()
-            self.__connection = None
-            return None
-        else:
-            return raw_data or None
-
-    @staticmethod
-    def __is_error_critical(err_class, err_text):
-        return err_class == MySQLdb.OperationalError and all(['denied' not in err_text,
-                                                              'Unknown column' not in err_text])
diff --git a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/SimpleService.py b/collectors/python.d.plugin/python_modules/bases/FrameworkServices/SimpleService.py
deleted file mode 100644
index 3f122e1d9..000000000
--- a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/SimpleService.py
+++ /dev/null
@@ -1,261 +0,0 @@
-# -*- coding: utf-8 -*-
-# Description:
-# Author: Pawel Krupa (paulfantom)
-# Author: Ilya Mashchenko (ilyam8)
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-import os
-
-from bases.charts import Charts, ChartError, create_runtime_chart
-from bases.collection import safe_print
-from bases.loggers import PythonDLogger
-from third_party.monotonic import monotonic
-from time import sleep, time
-
-RUNTIME_CHART_UPDATE = 'BEGIN netdata.runtime_{job_name} {since_last}\n' \
-                       'SET run_time = {elapsed}\n' \
-                       'END\n'
-
-PENALTY_EVERY = 5
-MAX_PENALTY = 10 * 60  # 10 minutes
-
-ND_INTERNAL_MONITORING_DISABLED = os.getenv("NETDATA_INTERNALS_MONITORING") == "NO"
-
-
-class RuntimeCounters:
-    def __init__(self, configuration):
-        """
-        :param configuration: <dict>
-        """
-        self.update_every = int(configuration.pop('update_every'))
-        self.do_penalty = configuration.pop('penalty')
-
-        self.start_mono = 0
-        self.start_real = 0
-        self.retries = 0
-        self.penalty = 0
-        self.elapsed = 0
-        self.prev_update = 0
-
-        self.runs = 1
-
-    def calc_next(self):
-        self.start_mono = monotonic()
-        return self.start_mono - (self.start_mono % self.update_every) + self.update_every + self.penalty
-
-    def sleep_until_next(self):
-        next_time = self.calc_next()
-        while self.start_mono < next_time:
-            sleep(next_time - self.start_mono)
-            self.start_mono = monotonic()
-            self.start_real = time()
-
-    def handle_retries(self):
-        self.retries += 1
-        if self.do_penalty and self.retries % PENALTY_EVERY == 0:
-            self.penalty = round(min(self.retries * self.update_every / 2, MAX_PENALTY))
-
-
-def clean_module_name(name):
-    if name.startswith('pythond_'):
-        return name[8:]
-    return name
-
-
-class SimpleService(PythonDLogger, object):
-    """
-    Prototype of Service class.
-    Implemented basic functionality to run jobs by `python.d.plugin`
-    """
-
-    def __init__(self, configuration, name=''):
-        """
-        :param configuration: <dict>
-        :param name: <str>
-        """
-        PythonDLogger.__init__(self)
-        self.configuration = configuration
-        self.order = list()
-        self.definitions = dict()
-
-        self.module_name = clean_module_name(self.__module__)
-        self.job_name = configuration.pop('job_name')
-        self.actual_job_name = self.job_name or self.module_name
-        self.override_name = configuration.pop('override_name')
-        self.fake_name = None
-
-        self._runtime_counters = RuntimeCounters(configuration=configuration)
-        self.charts = Charts(job_name=self.actual_name,
-                             actual_job_name=self.actual_job_name,
-                             priority=configuration.pop('priority'),
-                             cleanup=configuration.pop('chart_cleanup'),
-                             get_update_every=self.get_update_every,
-                             module_name=self.module_name)
-
-    def __repr__(self):
-        return '<{cls_bases}: {name}>'.format(cls_bases=', '.join(c.__name__ for c in self.__class__.__bases__),
-                                              name=self.name)
-
-    @property
-    def name(self):
-        name = self.override_name or self.job_name
-        if name and name != self.module_name:
-            return '_'.join([self.module_name, name])
-        return self.module_name
-
-    def actual_name(self):
-        return self.fake_name or self.name
-
-    @property
-    def runs_counter(self):
-        return self._runtime_counters.runs
-
-    @property
-    def update_every(self):
-        return self._runtime_counters.update_every
-
-    @update_every.setter
-    def update_every(self, value):
-        """
-        :param value: <int>
-        :return:
-        """
-        self._runtime_counters.update_every = value
-
-    def get_update_every(self):
-        return self.update_every
-
-    def check(self):
-        """
-        check() prototype
-        :return: boolean
-        """
-        self.debug("job doesn't implement check() method. Using default which simply invokes get_data().")
-        data = self.get_data()
-        if data and isinstance(data, dict):
-            return True
-        self.debug('returned value is wrong: {0}'.format(data))
-        return False
-
-    @create_runtime_chart
-    def create(self):
-        for chart_name in self.order:
-            chart_config = self.definitions.get(chart_name)
-
-            if not chart_config:
-                self.debug("create() => [NOT ADDED] chart '{chart_name}' not in definitions. "
-                           "Skipping it.".format(chart_name=chart_name))
-                continue
-
-            #  create chart
-            chart_params = [chart_name] + chart_config['options']
-            try:
-                self.charts.add_chart(params=chart_params)
-            except ChartError as error:
-                self.error("create() => [NOT ADDED] (chart '{chart}': {error})".format(chart=chart_name,
-                                                                                       error=error))
-                continue
-
-            # add dimensions to chart
-            for dimension in chart_config['lines']:
-                try:
-                    self.charts[chart_name].add_dimension(dimension)
-                except ChartError as error:
-                    self.error("create() => [NOT ADDED] (dimension '{dimension}': {error})".format(dimension=dimension,
-                                                                                                   error=error))
-                    continue
-
-            # add variables to chart
-            if 'variables' in chart_config:
-                for variable in chart_config['variables']:
-                    try:
-                        self.charts[chart_name].add_variable(variable)
-                    except ChartError as error:
-                        self.error("create() => [NOT ADDED] (variable '{var}': {error})".format(var=variable,
-                                                                                                error=error))
-                        continue
-
-        del self.order
-        del self.definitions
-
-        # True if job has at least 1 chart else False
-        return bool(self.charts)
-
-    def run(self):
-        """
-        Runs job in thread. Handles retries.
-        Exits when job failed or timed out.
-        :return: None
-        """
-        job = self._runtime_counters
-        self.debug('started, update frequency: {freq}'.format(freq=job.update_every))
-
-        while True:
-            job.sleep_until_next()
-
-            since = 0
-            if job.prev_update:
-                since = int((job.start_real - job.prev_update) * 1e6)
-
-            try:
-                updated = self.update(interval=since)
-            except Exception as error:
-                self.error('update() unhandled exception: {error}'.format(error=error))
-                updated = False
-
-            job.runs += 1
-
-            if not updated:
-                job.handle_retries()
-            else:
-                job.elapsed = int((monotonic() - job.start_mono) * 1e3)
-                job.prev_update = job.start_real
-                job.retries, job.penalty = 0, 0
-                if not ND_INTERNAL_MONITORING_DISABLED:
-                    safe_print(RUNTIME_CHART_UPDATE.format(job_name=self.name,
-                                                           since_last=since,
-                                                           elapsed=job.elapsed))
-            self.debug('update => [{status}] (elapsed time: {elapsed}, failed retries in a row: {retries})'.format(
-                status='OK' if updated else 'FAILED',
-                elapsed=job.elapsed if updated else '-',
-                retries=job.retries))
-
-    def update(self, interval):
-        """
-        :return:
-        """
-        data = self.get_data()
-        if not data:
-            self.debug('get_data() returned no data')
-            return False
-        elif not isinstance(data, dict):
-            self.debug('get_data() returned incorrect type data')
-            return False
-
-        updated = False
-
-        for chart in self.charts:
-            if chart.flags.obsoleted:
-                if chart.can_be_updated(data):
-                    chart.refresh()
-                else:
-                    continue
-            elif self.charts.cleanup and chart.penalty >= self.charts.cleanup:
-                chart.obsolete()
-                self.info("chart '{0}' was suppressed due to non updating".format(chart.name))
-                continue
-
-            ok = chart.update(data, interval)
-            if ok:
-                updated = True
-
-        if not updated:
-            self.debug('none of the charts has been updated')
-
-        return updated
-
-    def get_data(self):
-        return self._get_data()
-
-    def _get_data(self):
-        raise NotImplementedError
diff --git a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/SocketService.py b/collectors/python.d.plugin/python_modules/bases/FrameworkServices/SocketService.py
deleted file mode 100644
index d6c755058..000000000
--- a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/SocketService.py
+++ /dev/null
@@ -1,336 +0,0 @@
-# -*- coding: utf-8 -*-
-# Description:
-# Author: Pawel Krupa (paulfantom)
-# Author: Ilya Mashchenko (ilyam8)
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-import errno
-import socket
-
-try:
-    import ssl
-except ImportError:
-    _TLS_SUPPORT = False
-else:
-    _TLS_SUPPORT = True
-
-if _TLS_SUPPORT:
-    try:
-        PROTOCOL_TLS = ssl.PROTOCOL_TLS
-    except AttributeError:
-        PROTOCOL_TLS = ssl.PROTOCOL_SSLv23
-
-from bases.FrameworkServices.SimpleService import SimpleService
-
-
-DEFAULT_CONNECT_TIMEOUT = 2.0
-DEFAULT_READ_TIMEOUT = 2.0
-DEFAULT_WRITE_TIMEOUT = 2.0
-
-
-class SocketService(SimpleService):
-    def __init__(self, configuration=None, name=None):
-        self._sock = None
-        self._keep_alive = False
-        self.host = 'localhost'
-        self.port = None
-        self.unix_socket = None
-        self.dgram_socket = False
-        self.request = ''
-        self.tls = False
-        self.cert = None
-        self.key = None
-        self.__socket_config = None
-        self.__empty_request = "".encode()
-        SimpleService.__init__(self, configuration=configuration, name=name)
-        self.connect_timeout = configuration.get('connect_timeout', DEFAULT_CONNECT_TIMEOUT)
-        self.read_timeout = configuration.get('read_timeout', DEFAULT_READ_TIMEOUT)
-        self.write_timeout = configuration.get('write_timeout', DEFAULT_WRITE_TIMEOUT)
-
-    def _socket_error(self, message=None):
-        if self.unix_socket is not None:
-            self.error('unix socket "{socket}": {message}'.format(socket=self.unix_socket,
-                                                                  message=message))
-        else:
-            if self.__socket_config is not None:
-                _, _, _, _, sa = self.__socket_config
-                self.error('socket to "{address}" port {port}: {message}'.format(address=sa[0],
-                                                                                 port=sa[1],
-                                                                                 message=message))
-            else:
-                self.error('unknown socket: {0}'.format(message))
-
-    def _connect2socket(self, res=None):
-        """
-        Connect to a socket, passing the result of getaddrinfo()
-        :return: boolean
-        """
-        if res is None:
-            res = self.__socket_config
-            if res is None:
-                self.error("Cannot create socket to 'None':")
-                return False
-
-        af, sock_type, proto, _, sa = res
-        try:
-            self.debug('Creating socket to "{address}", port {port}'.format(address=sa[0], port=sa[1]))
-            self._sock = socket.socket(af, sock_type, proto)
-        except socket.error as error:
-            self.error('Failed to create socket "{address}", port {port}, error: {error}'.format(address=sa[0],
-                                                                                                 port=sa[1],
-                                                                                                 error=error))
-            self._sock = None
-            self.__socket_config = None
-            return False
-
-        if self.tls:
-            try:
-                self.debug('Encapsulating socket with TLS')
-                self.debug('Using keyfile: {0}, certfile: {1}, cert_reqs: {2}, ssl_version: {3}'.format(
-                    self.key, self.cert, ssl.CERT_NONE, PROTOCOL_TLS
-                ))
-                self._sock = ssl.wrap_socket(self._sock,
-                                             keyfile=self.key,
-                                             certfile=self.cert,
-                                             server_side=False,
-                                             cert_reqs=ssl.CERT_NONE,
-                                             ssl_version=PROTOCOL_TLS,
-                                             )
-            except (socket.error, ssl.SSLError, IOError, OSError) as error:
-                self.error('failed to wrap socket : {0}'.format(repr(error)))
-                self._disconnect()
-                self.__socket_config = None
-                return False
-
-        try:
-            self.debug('connecting socket to "{address}", port {port}'.format(address=sa[0], port=sa[1]))
-            self._sock.settimeout(self.connect_timeout)
-            self.debug('set socket connect timeout to: {0}'.format(self._sock.gettimeout()))
-            self._sock.connect(sa)
-        except (socket.error, ssl.SSLError) as error:
-            self.error('Failed to connect to "{address}", port {port}, error: {error}'.format(address=sa[0],
-                                                                                              port=sa[1],
-                                                                                              error=error))
-            self._disconnect()
-            self.__socket_config = None
-            return False
-
-        self.debug('connected to "{address}", port {port}'.format(address=sa[0], port=sa[1]))
-        self.__socket_config = res
-        return True
-
-    def _connect2unixsocket(self):
-        """
-        Connect to a unix socket, given its filename
-        :return: boolean
-        """
-        if self.unix_socket is None:
-            self.error("cannot connect to unix socket 'None'")
-            return False
-
-        try:
-            self.debug('attempting DGRAM unix socket "{0}"'.format(self.unix_socket))
-            self._sock = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
-            self._sock.settimeout(self.connect_timeout)
-            self.debug('set socket connect timeout to: {0}'.format(self._sock.gettimeout()))
-            self._sock.connect(self.unix_socket)
-            self.debug('connected DGRAM unix socket "{0}"'.format(self.unix_socket))
-            return True
-        except socket.error as error:
-            self.debug('Failed to connect DGRAM unix socket "{socket}": {error}'.format(socket=self.unix_socket,
-                                                                                        error=error))
-
-        try:
-            self.debug('attempting STREAM unix socket "{0}"'.format(self.unix_socket))
-            self._sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
-            self._sock.settimeout(self.connect_timeout)
-            self.debug('set socket connect timeout to: {0}'.format(self._sock.gettimeout()))
-            self._sock.connect(self.unix_socket)
-            self.debug('connected STREAM unix socket "{0}"'.format(self.unix_socket))
-            return True
-        except socket.error as error:
-            self.debug('Failed to connect STREAM unix socket "{socket}": {error}'.format(socket=self.unix_socket,
-                                                                                         error=error))
-            self._sock = None
-            return False
-
-    def _connect(self):
-        """
-        Recreate socket and connect to it since sockets cannot be reused after closing
-        Available configurations are IPv6, IPv4 or UNIX socket
-        :return:
-        """
-        try:
-            if self.unix_socket is not None:
-                self._connect2unixsocket()
-
-            else:
-                if self.__socket_config is not None:
-                    self._connect2socket()
-                else:
-                    if self.dgram_socket:
-                        sock_type = socket.SOCK_DGRAM
-                    else:
-                        sock_type = socket.SOCK_STREAM
-                    for res in socket.getaddrinfo(self.host, self.port, socket.AF_UNSPEC, sock_type):
-                        if self._connect2socket(res):
-                            break
-
-        except Exception as error:
-            self.error('unhandled exception during connect : {0}'.format(repr(error)))
-            self._sock = None
-            self.__socket_config = None
-
-    def _disconnect(self):
-        """
-        Close socket connection
-        :return:
-        """
-        if self._sock is not None:
-            try:
-                self.debug('closing socket')
-                self._sock.shutdown(2)  # 0 - read, 1 - write, 2 - all
-                self._sock.close()
-            except Exception as error:
-                if not (hasattr(error, 'errno') and error.errno == errno.ENOTCONN):
-                    self.error(error)
-            self._sock = None
-
-    def _send(self, request=None):
-        """
-        Send request.
-        :return: boolean
-        """
-        # Send request if it is needed
-        if self.request != self.__empty_request:
-            try:
-                self.debug('set socket write timeout to: {0}'.format(self._sock.gettimeout()))
-                self._sock.settimeout(self.write_timeout)
-                self.debug('sending request: {0}'.format(request or self.request))
-                self._sock.send(request or self.request)
-            except Exception as error:
-                self._socket_error('error sending request: {0}'.format(error))
-                self._disconnect()
-                return False
-        return True
-
-    def _receive(self, raw=False):
-        """
-        Receive data from socket
-        :param raw: set `True` to return bytes
-        :type raw: bool
-        :return: decoded str or raw bytes
-        :rtype: str/bytes
-        """
-        data = "" if not raw else b""
-        while True:
-            self.debug('receiving response')
-            try:
-                self.debug('set socket read timeout to: {0}'.format(self._sock.gettimeout()))
-                self._sock.settimeout(self.read_timeout)
-                buf = self._sock.recv(4096)
-            except Exception as error:
-                self._socket_error('failed to receive response: {0}'.format(error))
-                self._disconnect()
-                break
-
-            if buf is None or len(buf) == 0:  # handle server disconnect
-                if data == "" or data == b"":
-                    self._socket_error('unexpectedly disconnected')
-                else:
-                    self.debug('server closed the connection')
-                self._disconnect()
-                break
-
-            self.debug('received data')
-            data += buf.decode('utf-8', 'ignore') if not raw else buf
-            if self._check_raw_data(data):
-                break
-
-        self.debug(u'final response: {0}'.format(data if not raw else u'binary data'))
-        return data
-
-    def _get_raw_data(self, raw=False, request=None):
-        """
-        Get raw data with low-level "socket" module.
-        :param raw: set `True` to return bytes
-        :type raw: bool
-        :return: decoded data (str) or raw data (bytes)
-        :rtype: str/bytes
-        """
-        if self._sock is None:
-            self._connect()
-            if self._sock is None:
-                return None
-
-        # Send request if it is needed
-        if not self._send(request):
-            return None
-
-        data = self._receive(raw)
-
-        if not self._keep_alive:
-            self._disconnect()
-
-        return data
-
-    @staticmethod
-    def _check_raw_data(data):
-        """
-        Check if all data has been gathered from socket
-        :param data: str
-        :return: boolean
-        """
-        return bool(data)
-
-    def _parse_config(self):
-        """
-        Parse configuration data
-        :return: boolean
-        """
-        try:
-            self.unix_socket = str(self.configuration['socket'])
-        except (KeyError, TypeError):
-            self.debug('No unix socket specified. Trying TCP/IP socket.')
-            self.unix_socket = None
-            try:
-                self.host = str(self.configuration['host'])
-            except (KeyError, TypeError):
-                self.debug('No host specified. Using: "{0}"'.format(self.host))
-            try:
-                self.port = int(self.configuration['port'])
-            except (KeyError, TypeError):
-                self.debug('No port specified. Using: "{0}"'.format(self.port))
-
-            self.tls = bool(self.configuration.get('tls', self.tls))
-            if self.tls and not _TLS_SUPPORT:
-                self.warning('TLS requested but no TLS module found, disabling TLS support.')
-                self.tls = False
-            if _TLS_SUPPORT and not self.tls:
-                self.debug('No TLS preference specified, not using TLS.')
-
-            if self.tls and _TLS_SUPPORT:
-                self.key = self.configuration.get('tls_key_file')
-                self.cert = self.configuration.get('tls_cert_file')
-                if not self.cert:
-                    # If there's not a valid certificate, clear the key too.
-                    self.debug('No valid TLS client certificate configuration found.')
-                    self.key = None
-                    self.cert = None
-                elif not self.key:
-                    # If a key isn't listed, the config may still be
-                    # valid, because there may be a key attached to the
-                    # certificate.
-                    self.info('No TLS client key specified, assuming it\'s attached to the certificate.')
-                    self.key = None
-
-        try:
-            self.request = str(self.configuration['request'])
-        except (KeyError, TypeError):
-            self.debug('No request specified. Using: "{0}"'.format(self.request))
-
-        self.request = self.request.encode()
-
-    def check(self):
-        self._parse_config()
-        return SimpleService.check(self)
diff --git a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/UrlService.py b/collectors/python.d.plugin/python_modules/bases/FrameworkServices/UrlService.py
deleted file mode 100644
index 76129d376..000000000
--- a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/UrlService.py
+++ /dev/null
@@ -1,188 +0,0 @@
-# -*- coding: utf-8 -*-
-# Description:
-# Author: Pawel Krupa (paulfantom)
-# Author: Ilya Mashchenko (ilyam8)
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-import urllib3
-
-from bases.FrameworkServices.SimpleService import SimpleService
-
-try:
-    urllib3.disable_warnings()
-except AttributeError:
-    pass
-
-URLLIB3_VERSION = urllib3.__version__
-URLLIB3 = 'urllib3'
-
-class UrlService(SimpleService):
-    def __init__(self, configuration=None, name=None):
-        SimpleService.__init__(self, configuration=configuration, name=name)
-        self.debug("{0} version: {1}".format(URLLIB3, URLLIB3_VERSION))
-        self.url = self.configuration.get('url')
-        self.user = self.configuration.get('user')
-        self.password = self.configuration.get('pass')
-        self.proxy_user = self.configuration.get('proxy_user')
-        self.proxy_password = self.configuration.get('proxy_pass')
-        self.proxy_url = self.configuration.get('proxy_url')
-        self.method = self.configuration.get('method', 'GET')
-        self.header = self.configuration.get('header')
-        self.body = self.configuration.get('body')
-        self.request_timeout = self.configuration.get('timeout', 1)
-        self.respect_retry_after_header = self.configuration.get('respect_retry_after_header')
-        self.tls_verify = self.configuration.get('tls_verify')
-        self.tls_ca_file = self.configuration.get('tls_ca_file')
-        self.tls_key_file = self.configuration.get('tls_key_file')
-        self.tls_cert_file = self.configuration.get('tls_cert_file')
-        self._manager = None
-
-    def __make_headers(self, **header_kw):
-        user = header_kw.get('user') or self.user
-        password = header_kw.get('pass') or self.password
-        proxy_user = header_kw.get('proxy_user') or self.proxy_user
-        proxy_password = header_kw.get('proxy_pass') or self.proxy_password
-        custom_header = header_kw.get('header') or self.header
-        header_params = dict(keep_alive=True)
-        proxy_header_params = dict()
-        if user and password:
-            header_params['basic_auth'] = '{user}:{password}'.format(user=user,
-                                                                     password=password)
-        if proxy_user and proxy_password:
-            proxy_header_params['proxy_basic_auth'] = '{user}:{password}'.format(user=proxy_user,
-                                                                                 password=proxy_password)
-        try:
-            header, proxy_header = urllib3.make_headers(**header_params), urllib3.make_headers(**proxy_header_params)
-        except TypeError as error:
-            self.error('build_header() error: {error}'.format(error=error))
-            return None, None
-        else:
-            header.update(custom_header or dict())
-            return header, proxy_header
-
-    def _build_manager(self, **header_kw):
-        header, proxy_header = self.__make_headers(**header_kw)
-        if header is None or proxy_header is None:
-            return None
-        proxy_url = header_kw.get('proxy_url') or self.proxy_url
-        if proxy_url:
-            manager = urllib3.ProxyManager
-            params = dict(proxy_url=proxy_url, headers=header, proxy_headers=proxy_header)
-        else:
-            manager = urllib3.PoolManager
-            params = dict(headers=header)
-        tls_cert_file = self.tls_cert_file
-        if tls_cert_file:
-            params['cert_file'] = tls_cert_file
-            # NOTE: key_file is useless without cert_file, but
-            #       cert_file may include the key as well.
-            tls_key_file = self.tls_key_file
-            if tls_key_file:
-                params['key_file'] = tls_key_file
-        tls_ca_file = self.tls_ca_file
-        if tls_ca_file:
-            params['ca_certs'] = tls_ca_file
-        try:
-            url = header_kw.get('url') or self.url
-            is_https = url.startswith('https')
-            if skip_tls_verify(is_https, self.tls_verify, tls_ca_file):
-                params['ca_certs'] = None
-                params['cert_reqs'] = 'CERT_NONE'
-                if is_https:
-                    params['assert_hostname'] = False
-            return manager(**params)
-        except (urllib3.exceptions.ProxySchemeUnknown, TypeError) as error:
-            self.error('build_manager() error:', str(error))
-            return None
-
-    def _get_raw_data(self, url=None, manager=None, **kwargs):
-        """
-        Get raw data from http request
-        :return: str
-        """
-        try:
-            response = self._do_request(url, manager, **kwargs)
-        except Exception as error:
-            self.error('Url: {url}. Error: {error}'.format(url=url or self.url, error=error))
-            return None
-
-        if response.status == 200:
-            if isinstance(response.data, str):
-                return response.data
-            return response.data.decode(errors='ignore')
-        else:
-            self.debug('Url: {url}. Http response status code: {code}'.format(url=url or self.url, code=response.status))
-            return None
-
-    def _get_raw_data_with_status(self, url=None, manager=None, retries=1, redirect=True, **kwargs):
-        """
-        Get status and response body content from http request. Does not catch exceptions
-        :return: int, str
-        """
-        response = self._do_request(url, manager, retries, redirect, **kwargs)
-
-        if isinstance(response.data, str):
-            return response.status, response.data
-        return response.status, response.data.decode(errors='ignore')
-
-    def _do_request(self, url=None, manager=None, retries=1, redirect=True, **kwargs):
-        """
-        Get response from http request. Does not catch exceptions
-        :return: HTTPResponse
-        """
-        url = url or self.url
-        manager = manager or self._manager
-        retry = urllib3.Retry(retries)
-        if hasattr(retry, 'respect_retry_after_header'):
-            retry.respect_retry_after_header = bool(self.respect_retry_after_header)
-
-        if self.body:
-            kwargs['body'] = self.body
-
-        response = manager.request(
-            method=self.method,
-            url=url,
-            timeout=self.request_timeout,
-            retries=retry,
-            headers=manager.headers,
-            redirect=redirect,
-            **kwargs
-        )
-        return response
-
-    def check(self):
-        """
-        Format configuration data and try to connect to server
-        :return: boolean
-        """
-        if not (self.url and isinstance(self.url, str)):
-            self.error('URL is not defined or type is not <str>')
-            return False
-
-        self._manager = self._build_manager()
-        if not self._manager:
-            return False
-
-        try:
-            data = self._get_data()
-        except Exception as error:
-            self.error('_get_data() failed. Url: {url}. Error: {error}'.format(url=self.url, error=error))
-            return False
-
-        if isinstance(data, dict) and data:
-            return True
-        self.error('_get_data() returned no data or type is not <dict>')
-        return False
-
-
-def skip_tls_verify(is_https, tls_verify, tls_ca_file):
-    # default 'tls_verify' value is None
-    # logic is:
-    #   - never skip if there is 'tls_ca_file' file
-    #   - skip by default for https
-    #   - do not skip by default for http
-    if tls_ca_file:
-        return False
-    if is_https and not tls_verify:
-        return True
-    return tls_verify is False
diff --git a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/__init__.py b/collectors/python.d.plugin/python_modules/bases/FrameworkServices/__init__.py
deleted file mode 100644
index e69de29bb..000000000
--- a/collectors/python.d.plugin/python_modules/bases/FrameworkServices/__init__.py
+++ /dev/null
diff --git a/collectors/python.d.plugin/python_modules/bases/__init__.py b/collectors/python.d.plugin/python_modules/bases/__init__.py
deleted file mode 100644
index e69de29bb..000000000
--- a/collectors/python.d.plugin/python_modules/bases/__init__.py
+++ /dev/null
diff --git a/collectors/python.d.plugin/python_modules/bases/charts.py b/collectors/python.d.plugin/python_modules/bases/charts.py
deleted file mode 100644
index 203ad1672..000000000
--- a/collectors/python.d.plugin/python_modules/bases/charts.py
+++ /dev/null
@@ -1,431 +0,0 @@
-# -*- coding: utf-8 -*-
-# Description:
-# Author: Ilya Mashchenko (ilyam8)
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-import os
-
-from bases.collection import safe_print
-
-CHART_PARAMS = ['type', 'id', 'name', 'title', 'units', 'family', 'context', 'chart_type', 'hidden']
-DIMENSION_PARAMS = ['id', 'name', 'algorithm', 'multiplier', 'divisor', 'hidden']
-VARIABLE_PARAMS = ['id', 'value']
-
-CHART_TYPES = ['line', 'area', 'stacked']
-DIMENSION_ALGORITHMS = ['absolute', 'incremental', 'percentage-of-absolute-row', 'percentage-of-incremental-row']
-
-CHART_BEGIN = 'BEGIN {type}.{id} {since_last}\n'
-CHART_CREATE = "CHART {type}.{id} '{name}' '{title}' '{units}' '{family}' '{context}' " \
-               "{chart_type} {priority} {update_every} '{hidden}' 'python.d.plugin' '{module_name}'\n"
-CHART_OBSOLETE = "CHART {type}.{id} '{name}' '{title}' '{units}' '{family}' '{context}' " \
-                 "{chart_type} {priority} {update_every} '{hidden} obsolete'\n"
-
-CLABEL_COLLECT_JOB = "CLABEL '_collect_job' '{actual_job_name}' '0'\n"
-CLABEL_COMMIT = "CLABEL_COMMIT\n"
-
-DIMENSION_CREATE = "DIMENSION '{id}' '{name}' {algorithm} {multiplier} {divisor} '{hidden} {obsolete}'\n"
-DIMENSION_SET = "SET '{id}' = {value}\n"
-
-CHART_VARIABLE_SET = "VARIABLE CHART '{id}' = {value}\n"
-
-# 1 is label source auto
-# https://github.com/netdata/netdata/blob/cc2586de697702f86a3c34e60e23652dd4ddcb42/database/rrd.h#L205
-RUNTIME_CHART_CREATE = "CHART netdata.runtime_{job_name} '' 'Execution time' 'ms' 'python.d' " \
-                       "netdata.pythond_runtime line 145000 {update_every} '' 'python.d.plugin' '{module_name}'\n" \
-                       "CLABEL '_collect_job' '{actual_job_name}' '1'\n" \
-                       "CLABEL_COMMIT\n" \
-                       "DIMENSION run_time 'run time' absolute 1 1\n"
-
-ND_INTERNAL_MONITORING_DISABLED = os.getenv("NETDATA_INTERNALS_MONITORING") == "NO"
-
-
-def create_runtime_chart(func):
-    """
-    Calls a wrapped function, then prints runtime chart to stdout.
-
-    Used as a decorator for SimpleService.create() method.
-    The whole point of making 'create runtime chart' functionality as a decorator was
-    to help users who re-implements create() in theirs classes.
-
-    :param func: class method
-    :return:
-    """
-
-    def wrapper(*args, **kwargs):
-        self = args[0]
-        if not ND_INTERNAL_MONITORING_DISABLED:
-            chart = RUNTIME_CHART_CREATE.format(
-                job_name=self.name,
-                actual_job_name=self.actual_job_name,
-                update_every=self._runtime_counters.update_every,
-                module_name=self.module_name,
-            )
-            safe_print(chart)
-        ok = func(*args, **kwargs)
-        return ok
-
-    return wrapper
-
-
-class ChartError(Exception):
-    """Base-class for all exceptions raised by this module"""
-
-
-class DuplicateItemError(ChartError):
-    """Occurs when user re-adds a chart or a dimension that has already been added"""
-
-
-class ItemTypeError(ChartError):
-    """Occurs when user passes value of wrong type to Chart, Dimension or ChartVariable class"""
-
-
-class ItemValueError(ChartError):
-    """Occurs when user passes inappropriate value to Chart, Dimension or ChartVariable class"""
-
-
-class Charts:
-    """Represent a collection of charts
-
-    All charts stored in a dict.
-    Chart is a instance of Chart class.
-    Charts adding must be done using Charts.add_chart() method only"""
-
-    def __init__(self, job_name, actual_job_name, priority, cleanup, get_update_every, module_name):
-        """
-        :param job_name: <bound method>
-        :param priority: <int>
-        :param get_update_every: <bound method>
-        """
-        self.job_name = job_name
-        self.actual_job_name = actual_job_name
-        self.priority = priority
-        self.cleanup = cleanup
-        self.get_update_every = get_update_every
-        self.module_name = module_name
-        self.charts = dict()
-
-    def __len__(self):
-        return len(self.charts)
-
-    def __iter__(self):
-        return iter(self.charts.values())
-
-    def __repr__(self):
-        return 'Charts({0})'.format(self)
-
-    def __str__(self):
-        return str([chart for chart in self.charts])
-
-    def __contains__(self, item):
-        return item in self.charts
-
-    def __getitem__(self, item):
-        return self.charts[item]
-
-    def __delitem__(self, key):
-        del self.charts[key]
-
-    def __bool__(self):
-        return bool(self.charts)
-
-    def __nonzero__(self):
-        return self.__bool__()
-
-    def add_chart(self, params):
-        """
-        Create Chart instance and add it to the dict
-
-        Manually adds job name, priority and update_every to params.
-        :param params: <list>
-        :return:
-        """
-        params = [self.job_name()] + params
-        new_chart = Chart(params)
-
-        new_chart.params['update_every'] = self.get_update_every()
-        new_chart.params['priority'] = self.priority
-        new_chart.params['module_name'] = self.module_name
-        new_chart.params['actual_job_name'] = self.actual_job_name
-
-        self.priority += 1
-        self.charts[new_chart.id] = new_chart
-
-        return new_chart
-
-    def active_charts(self):
-        return [chart.id for chart in self if not chart.flags.obsoleted]
-
-
-class Chart:
-    """Represent a chart"""
-
-    def __init__(self, params):
-        """
-        :param params: <list>
-        """
-        if not isinstance(params, list):
-            raise ItemTypeError("'chart' must be a list type")
-        if not len(params) >= 8:
-            raise ItemValueError("invalid value for 'chart', must be {0}".format(CHART_PARAMS))
-
-        self.params = dict(zip(CHART_PARAMS, (p or str() for p in params)))
-        self.name = '{type}.{id}'.format(type=self.params['type'],
-                                         id=self.params['id'])
-        if self.params.get('chart_type') not in CHART_TYPES:
-            self.params['chart_type'] = 'absolute'
-        hidden = str(self.params.get('hidden', ''))
-        self.params['hidden'] = 'hidden' if hidden == 'hidden' else ''
-
-        self.dimensions = list()
-        self.variables = set()
-        self.flags = ChartFlags()
-        self.penalty = 0
-
-    def __getattr__(self, item):
-        try:
-            return self.params[item]
-        except KeyError:
-            raise AttributeError("'{instance}' has no attribute '{attr}'".format(instance=repr(self),
-                                                                                 attr=item))
-
-    def __repr__(self):
-        return 'Chart({0})'.format(self.id)
-
-    def __str__(self):
-        return self.id
-
-    def __iter__(self):
-        return iter(self.dimensions)
-
-    def __contains__(self, item):
-        return item in [dimension.id for dimension in self.dimensions]
-
-    def add_variable(self, variable):
-        """
-        :param variable: <list>
-        :return:
-        """
-        self.variables.add(ChartVariable(variable))
-
-    def add_dimension(self, dimension):
-        """
-        :param dimension: <list>
-        :return:
-        """
-        dim = Dimension(dimension)
-
-        if dim.id in self:
-            raise DuplicateItemError("'{dimension}' already in '{chart}' dimensions".format(dimension=dim.id,
-                                                                                            chart=self.name))
-        self.refresh()
-        self.dimensions.append(dim)
-        return dim
-
-    def del_dimension(self, dimension_id, hide=True):
-        if dimension_id not in self:
-            return
-        idx = self.dimensions.index(dimension_id)
-        dimension = self.dimensions[idx]
-        if hide:
-            dimension.params['hidden'] = 'hidden'
-        dimension.params['obsolete'] = 'obsolete'
-        self.create()
-        self.dimensions.remove(dimension)
-
-    def hide_dimension(self, dimension_id, reverse=False):
-        if dimension_id not in self:
-            return
-        idx = self.dimensions.index(dimension_id)
-        dimension = self.dimensions[idx]
-        dimension.params['hidden'] = 'hidden' if not reverse else str()
-        self.refresh()
-
-    def create(self):
-        """
-        :return:
-        """
-        chart = CHART_CREATE.format(**self.params)
-        labels = CLABEL_COLLECT_JOB.format(**self.params) + CLABEL_COMMIT
-        dimensions = ''.join([dimension.create() for dimension in self.dimensions])
-        variables = ''.join([var.set(var.value) for var in self.variables if var])
-
-        self.flags.push = False
-        self.flags.created = True
-
-        safe_print(chart + labels + dimensions + variables)
-
-    def can_be_updated(self, data):
-        for dim in self.dimensions:
-            if dim.get_value(data) is not None:
-                return True
-        return False
-
-    def update(self, data, interval):
-        updated_dimensions, updated_variables = str(), str()
-
-        for dim in self.dimensions:
-            value = dim.get_value(data)
-            if value is not None:
-                updated_dimensions += dim.set(value)
-
-        for var in self.variables:
-            value = var.get_value(data)
-            if value is not None:
-                updated_variables += var.set(value)
-
-        if updated_dimensions:
-            since_last = interval if self.flags.updated else 0
-
-            if self.flags.push:
-                self.create()
-
-            chart_begin = CHART_BEGIN.format(type=self.type, id=self.id, since_last=since_last)
-            safe_print(chart_begin, updated_dimensions, updated_variables, 'END\n')
-
-            self.flags.updated = True
-            self.penalty = 0
-        else:
-            self.penalty += 1
-            self.flags.updated = False
-
-        return bool(updated_dimensions)
-
-    def obsolete(self):
-        self.flags.obsoleted = True
-        if self.flags.created:
-            safe_print(CHART_OBSOLETE.format(**self.params))
-
-    def refresh(self):
-        self.penalty = 0
-        self.flags.push = True
-        self.flags.obsoleted = False
-
-
-class Dimension:
-    """Represent a dimension"""
-
-    def __init__(self, params):
-        """
-        :param params: <list>
-        """
-        if not isinstance(params, list):
-            raise ItemTypeError("'dimension' must be a list type")
-        if not params:
-            raise ItemValueError("invalid value for 'dimension', must be {0}".format(DIMENSION_PARAMS))
-
-        self.params = dict(zip(DIMENSION_PARAMS, (p or str() for p in params)))
-        self.params['name'] = self.params.get('name') or self.params['id']
-
-        if self.params.get('algorithm') not in DIMENSION_ALGORITHMS:
-            self.params['algorithm'] = 'absolute'
-        if not isinstance(self.params.get('multiplier'), int):
-            self.params['multiplier'] = 1
-        if not isinstance(self.params.get('divisor'), int):
-            self.params['divisor'] = 1
-        self.params.setdefault('hidden', '')
-        self.params.setdefault('obsolete', '')
-
-    def __getattr__(self, item):
-        try:
-            return self.params[item]
-        except KeyError:
-            raise AttributeError("'{instance}' has no attribute '{attr}'".format(instance=repr(self),
-                                                                                 attr=item))
-
-    def __repr__(self):
-        return 'Dimension({0})'.format(self.id)
-
-    def __str__(self):
-        return self.id
-
-    def __eq__(self, other):
-        if not isinstance(other, Dimension):
-            return self.id == other
-        return self.id == other.id
-
-    def __ne__(self, other):
-        return not self == other
-
-    def __hash__(self):
-        return hash(repr(self))
-
-    def create(self):
-        return DIMENSION_CREATE.format(**self.params)
-
-    def set(self, value):
-        """
-        :param value: <str>: must be a digit
-        :return:
-        """
-        return DIMENSION_SET.format(id=self.id,
-                                    value=value)
-
-    def get_value(self, data):
-        try:
-            return int(data[self.id])
-        except (KeyError, TypeError):
-            return None
-
-
-class ChartVariable:
-    """Represent a chart variable"""
-
-    def __init__(self, params):
-        """
-        :param params: <list>
-        """
-        if not isinstance(params, list):
-            raise ItemTypeError("'variable' must be a list type")
-        if not params:
-            raise ItemValueError("invalid value for 'variable' must be: {0}".format(VARIABLE_PARAMS))
-
-        self.params = dict(zip(VARIABLE_PARAMS, params))
-        self.params.setdefault('value', None)
-
-    def __getattr__(self, item):
-        try:
-            return self.params[item]
-        except KeyError:
-            raise AttributeError("'{instance}' has no attribute '{attr}'".format(instance=repr(self),
-                                                                                 attr=item))
-
-    def __bool__(self):
-        return self.value is not None
-
-    def __nonzero__(self):
-        return self.__bool__()
-
-    def __repr__(self):
-        return 'ChartVariable({0})'.format(self.id)
-
-    def __str__(self):
-        return self.id
-
-    def __eq__(self, other):
-        if isinstance(other, ChartVariable):
-            return self.id == other.id
-        return False
-
-    def __ne__(self, other):
-        return not self == other
-
-    def __hash__(self):
-        return hash(repr(self))
-
-    def set(self, value):
-        return CHART_VARIABLE_SET.format(id=self.id,
-                                         value=value)
-
-    def get_value(self, data):
-        try:
-            return int(data[self.id])
-        except (KeyError, TypeError):
-            return None
-
-
-class ChartFlags:
-    def __init__(self):
-        self.push = True
-        self.created = False
-        self.updated = False
-        self.obsoleted = False
diff --git a/collectors/python.d.plugin/python_modules/bases/collection.py b/collectors/python.d.plugin/python_modules/bases/collection.py
deleted file mode 100644
index 93bf8cf05..000000000
--- a/collectors/python.d.plugin/python_modules/bases/collection.py
+++ /dev/null
@@ -1,117 +0,0 @@
-# -*- coding: utf-8 -*-
-# Description:
-# Author: Ilya Mashchenko (ilyam8)
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-import os
-
-from threading import Lock
-
-PATH = os.getenv('PATH', '/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin').split(':')
-
-CHART_BEGIN = 'BEGIN {0} {1}\n'
-CHART_CREATE = "CHART {0} '{1}' '{2}' '{3}' '{4}' '{5}' {6} {7} {8}\n"
-DIMENSION_CREATE = "DIMENSION '{0}' '{1}' {2} {3} {4} '{5}'\n"
-DIMENSION_SET = "SET '{0}' = {1}\n"
-
-print_lock = Lock()
-
-
-def setdefault_values(config, base_dict):
-    for key, value in base_dict.items():
-        config.setdefault(key, value)
-    return config
-
-
-def run_and_exit(func):
-    def wrapper(*args, **kwargs):
-        func(*args, **kwargs)
-        exit(1)
-
-    return wrapper
-
-
-def on_try_except_finally(on_except=(None,), on_finally=(None,)):
-    except_func = on_except[0]
-    finally_func = on_finally[0]
-
-    def decorator(func):
-        def wrapper(*args, **kwargs):
-            try:
-                func(*args, **kwargs)
-            except Exception:
-                if except_func:
-                    except_func(*on_except[1:])
-            finally:
-                if finally_func:
-                    finally_func(*on_finally[1:])
-
-        return wrapper
-
-    return decorator
-
-
-def static_vars(**kwargs):
-    def decorate(func):
-        for k in kwargs:
-            setattr(func, k, kwargs[k])
-        return func
-
-    return decorate
-
-
-@on_try_except_finally(on_except=(exit, 1))
-def safe_print(*msg):
-    """
-    :param msg:
-    :return:
-    """
-    print_lock.acquire()
-    print(''.join(msg))
-    print_lock.release()
-
-
-def find_binary(binary):
-    """
-    :param binary: <str>
-    :return:
-    """
-    for directory in PATH:
-        binary_name = os.path.join(directory, binary)
-        if os.path.isfile(binary_name) and os.access(binary_name, os.X_OK):
-            return binary_name
-    return None
-
-
-def read_last_line(f):
-    with open(f, 'rb') as opened:
-        opened.seek(-2, 2)
-        while opened.read(1) != b'\n':
-            opened.seek(-2, 1)
-            if opened.tell() == 0:
-                break
-        result = opened.readline()
-    return result.decode()
-
-
-def unicode_str(arg):
-    """Return the argument as a unicode string.
-
-    The `unicode` function has been removed from Python3 and `str` takes its
-    place. This function is a helper which will try using Python 2's `unicode`
-    and if it doesn't exist, assume we're using Python 3 and use `str`.
-
-    :param arg:
-    :return: <str>
-    """
-    # TODO: fix
-    try:
-        # https://github.com/netdata/netdata/issues/7613
-        if isinstance(arg, unicode):
-            return arg
-        return unicode(arg, errors='ignore')
-    # https://github.com/netdata/netdata/issues/7642
-    except TypeError:
-        return unicode(arg)
-    except NameError:
-        return str(arg)
diff --git a/collectors/python.d.plugin/python_modules/bases/loaders.py b/collectors/python.d.plugin/python_modules/bases/loaders.py
deleted file mode 100644
index 095f3a3b1..000000000
--- a/collectors/python.d.plugin/python_modules/bases/loaders.py
+++ /dev/null
@@ -1,46 +0,0 @@
-# -*- coding: utf-8 -*-
-# Description:
-# Author: Ilya Mashchenko (ilyam8)
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-
-from sys import version_info
-
-PY_VERSION = version_info[:2]
-
-try:
-    if PY_VERSION > (3, 1):
-        from pyyaml3 import SafeLoader as YamlSafeLoader
-    else:
-        from pyyaml2 import SafeLoader as YamlSafeLoader
-except ImportError:
-    from yaml import SafeLoader as YamlSafeLoader
-
-
-try:
-    from collections import OrderedDict
-except ImportError:
-    from third_party.ordereddict import OrderedDict
-
-
-DEFAULT_MAPPING_TAG = 'tag:yaml.org,2002:map' if PY_VERSION > (3, 1) else u'tag:yaml.org,2002:map'
-
-
-def dict_constructor(loader, node):
-    return OrderedDict(loader.construct_pairs(node))
-
-
-YamlSafeLoader.add_constructor(DEFAULT_MAPPING_TAG, dict_constructor)
-
-
-def load_yaml(stream):
-    loader = YamlSafeLoader(stream)
-    try:
-        return loader.get_single_data()
-    finally:
-        loader.dispose()
-
-
-def load_config(file_name):
-    with open(file_name, 'r') as stream:
-        return load_yaml(stream)
diff --git a/collectors/python.d.plugin/python_modules/bases/loggers.py b/collectors/python.d.plugin/python_modules/bases/loggers.py
deleted file mode 100644
index 7ae8ab0c1..000000000
--- a/collectors/python.d.plugin/python_modules/bases/loggers.py
+++ /dev/null
@@ -1,198 +0,0 @@
-# -*- coding: utf-8 -*-
-# Description:
-# Author: Ilya Mashchenko (ilyam8)
-# SPDX-License-Identifier: GPL-3.0-or-later
-
-import logging
-import os
-import stat
-import traceback
-
-from sys import exc_info
-
-try:
-    from time import monotonic as time
-except ImportError:
-    from time import time
-
-from bases.collection import on_try_except_finally, unicode_str
-
-LOGGING_LEVELS = {
-    'CRITICAL': 50,
-    'ERROR': 40,
-    'WARNING': 30,
-    'INFO': 20,
-    'DEBUG': 10,
-    'NOTSET': 0,
-}
-
-
-def is_stderr_connected_to_journal():
-    journal_stream = os.environ.get("JOURNAL_STREAM")
-    if not journal_stream:
-        return False
-
-    colon_index = journal_stream.find(":")
-    if colon_index <= 0:
-        return False
-
-    device, inode = journal_stream[:colon_index], journal_stream[colon_index + 1:]
-
-    try:
-        device_number, inode_number = os.fstat(2)[stat.ST_DEV], os.fstat(2)[stat.ST_INO]
-    except OSError:
-        return False
-
-    return str(device_number) == device and str(inode_number) == inode
-
-
-is_journal = is_stderr_connected_to_journal()
-
-DEFAULT_LOG_LINE_FORMAT = '%(asctime)s: %(name)s %(levelname)s : %(message)s'
-PYTHON_D_LOG_LINE_FORMAT = '%(asctime)s: %(name)s %(levelname)s: %(module_name)s[%(job_name)s] : %(message)s'
-
-if is_journal:
-    DEFAULT_LOG_LINE_FORMAT = '%(name)s %(levelname)s : %(message)s'
-    PYTHON_D_LOG_LINE_FORMAT = '%(name)s %(levelname)s: %(module_name)s[%(job_name)s] : %(message)s '
-
-DEFAULT_LOG_TIME_FORMAT = '%Y-%m-%d %H:%M:%S'
-PYTHON_D_LOG_NAME = 'python.d'
-
-
-def add_traceback(func):
-    def on_call(*args):
-        self = args[0]
-
-        if not self.log_traceback:
-            func(*args)
-        else:
-            if exc_info()[0]:
-                func(*args)
-                func(self, traceback.format_exc())
-            else:
-                func(*args)
-
-    return on_call
-
-
-class BaseLogger(object):
-    def __init__(
-            self,
-            logger_name,
-            log_fmt=DEFAULT_LOG_LINE_FORMAT,
-            date_fmt=DEFAULT_LOG_TIME_FORMAT,
-            handler=logging.StreamHandler,
-    ):
-        self.logger = logging.getLogger(logger_name)
-        self._muted = False
-        if not self.has_handlers():
-            self.severity = 'INFO'
-            self.logger.addHandler(handler())
-            self.set_formatter(fmt=log_fmt, date_fmt=date_fmt)
-
-    def __repr__(self):
-        return '<Logger: {name})>'.format(name=self.logger.name)
-
-    def set_formatter(self, fmt, date_fmt=DEFAULT_LOG_TIME_FORMAT):
-        if self.has_handlers():
-            self.logger.handlers[0].setFormatter(logging.Formatter(fmt=fmt, datefmt=date_fmt))
-
-    def has_handlers(self):
-        return self.logger.handlers
-
-    @property
-    def severity(self):
-        return self.logger.getEffectiveLevel()
-
-    @severity.setter
-    def severity(self, level):
-        if level in LOGGING_LEVELS:
-            self.logger.setLevel(LOGGING_LEVELS[level])
-
-    def _log(self, level, *msg, **kwargs):
-        if not self._muted:
-            self.logger.log(level, ' '.join(map(unicode_str, msg)), **kwargs)
-
-    def debug(self, *msg, **kwargs):
-        self._log(logging.DEBUG, *msg, **kwargs)
-
-    def info(self, *msg, **kwargs):
-        self._log(logging.INFO, *msg, **kwargs)
-
-    def warning(self, *msg, **kwargs):
-        self._log(logging.WARN, *msg, **kwargs)
-
-    def error(self, *msg, **kwargs):
-        self._log(logging.ERROR, *msg, **kwargs)
-
-    def alert(self, *msg, **kwargs):
-        self._log(logging.CRITICAL, *msg, **kwargs)
-
-    @on_try_except_finally(on_finally=(exit, 1))
-    def fatal(self, *msg, **kwargs):
-        self._log(logging.CRITICAL, *msg, **kwargs)
-
-    def mute(self):
-        self._muted = True
-
-    def unmute(self):
-        self._muted = False
-
-
-class PythonDLogger(object):
-    def __init__(
-            self,
-            logger_name=PYTHON_D_LOG_NAME,
-            log_fmt=PYTHON_D_LOG_LINE_FORMAT,
-    ):
-        self.logger = BaseLogger(logger_name, log_fmt=log_fmt)
-        self.module_name = 'plugin'
-        self.job_name = 'main'
-
-    _LOG_TRACEBACK = False
-
-    @property
-    def log_traceback(self):
-        return PythonDLogger._LOG_TRACEBACK
-
-    @log_traceback.setter
-    def log_traceback(self, value):
-        PythonDLogger._LOG_TRACEBACK = value
-
-    def debug(self, *msg):
-        self.logger.debug(*msg, extra={
-            'module_name': self.module_name,
-            'job_name': self.job_name or self.module_name,
-        })
-
-    def info(self, *msg):
-        self.logger.info(*msg, extra={
-            'module_name': self.module_name,
-            'job_name': self.job_name or self.module_name,
-        })
-
-    def warning(self, *msg):
-        self.logger.warning(*msg, extra={
-            'module_name': self.module_name,
-            'job_name': self.job_name or self.module_name,
-        })
-
-    @add_traceback
-    def error(self, *msg):
-        self.logger.error(*msg, extra={
-            'module_name': self.module_name,
-            'job_name': self.job_name or self.module_name,
-        })
-
-    @add_traceback
-    def alert(self, *msg):
-        self.logger.alert(*msg, extra={
-            'module_name': self.module_name,
-            'job_name': self.job_name or self.module_name,
-        })
-
-    def fatal(self, *msg):
-        self.logger.fatal(*msg, extra={
-            'module_name': self.module_name,
-            'job_name': self.job_name or self.module_name,
-        })
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/__init__.py b/collectors/python.d.plugin/python_modules/pyyaml2/__init__.py
deleted file mode 100644
index 4d560e438..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/__init__.py
+++ /dev/null
@@ -1,316 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-from error import *
-
-from tokens import *
-from events import *
-from nodes import *
-
-from loader import *
-from dumper import *
-
-__version__ = '3.11'
-
-try:
-    from cyaml import *
-    __with_libyaml__ = True
-except ImportError:
-    __with_libyaml__ = False
-
-def scan(stream, Loader=Loader):
-    """
-    Scan a YAML stream and produce scanning tokens.
-    """
-    loader = Loader(stream)
-    try:
-        while loader.check_token():
-            yield loader.get_token()
-    finally:
-        loader.dispose()
-
-def parse(stream, Loader=Loader):
-    """
-    Parse a YAML stream and produce parsing events.
-    """
-    loader = Loader(stream)
-    try:
-        while loader.check_event():
-            yield loader.get_event()
-    finally:
-        loader.dispose()
-
-def compose(stream, Loader=Loader):
-    """
-    Parse the first YAML document in a stream
-    and produce the corresponding representation tree.
-    """
-    loader = Loader(stream)
-    try:
-        return loader.get_single_node()
-    finally:
-        loader.dispose()
-
-def compose_all(stream, Loader=Loader):
-    """
-    Parse all YAML documents in a stream
-    and produce corresponding representation trees.
-    """
-    loader = Loader(stream)
-    try:
-        while loader.check_node():
-            yield loader.get_node()
-    finally:
-        loader.dispose()
-
-def load(stream, Loader=Loader):
-    """
-    Parse the first YAML document in a stream
-    and produce the corresponding Python object.
-    """
-    loader = Loader(stream)
-    try:
-        return loader.get_single_data()
-    finally:
-        loader.dispose()
-
-def load_all(stream, Loader=Loader):
-    """
-    Parse all YAML documents in a stream
-    and produce corresponding Python objects.
-    """
-    loader = Loader(stream)
-    try:
-        while loader.check_data():
-            yield loader.get_data()
-    finally:
-        loader.dispose()
-
-def safe_load(stream):
-    """
-    Parse the first YAML document in a stream
-    and produce the corresponding Python object.
-    Resolve only basic YAML tags.
-    """
-    return load(stream, SafeLoader)
-
-def safe_load_all(stream):
-    """
-    Parse all YAML documents in a stream
-    and produce corresponding Python objects.
-    Resolve only basic YAML tags.
-    """
-    return load_all(stream, SafeLoader)
-
-def emit(events, stream=None, Dumper=Dumper,
-        canonical=None, indent=None, width=None,
-        allow_unicode=None, line_break=None):
-    """
-    Emit YAML parsing events into a stream.
-    If stream is None, return the produced string instead.
-    """
-    getvalue = None
-    if stream is None:
-        from StringIO import StringIO
-        stream = StringIO()
-        getvalue = stream.getvalue
-    dumper = Dumper(stream, canonical=canonical, indent=indent, width=width,
-            allow_unicode=allow_unicode, line_break=line_break)
-    try:
-        for event in events:
-            dumper.emit(event)
-    finally:
-        dumper.dispose()
-    if getvalue:
-        return getvalue()
-
-def serialize_all(nodes, stream=None, Dumper=Dumper,
-        canonical=None, indent=None, width=None,
-        allow_unicode=None, line_break=None,
-        encoding='utf-8', explicit_start=None, explicit_end=None,
-        version=None, tags=None):
-    """
-    Serialize a sequence of representation trees into a YAML stream.
-    If stream is None, return the produced string instead.
-    """
-    getvalue = None
-    if stream is None:
-        if encoding is None:
-            from StringIO import StringIO
-        else:
-            from cStringIO import StringIO
-        stream = StringIO()
-        getvalue = stream.getvalue
-    dumper = Dumper(stream, canonical=canonical, indent=indent, width=width,
-            allow_unicode=allow_unicode, line_break=line_break,
-            encoding=encoding, version=version, tags=tags,
-            explicit_start=explicit_start, explicit_end=explicit_end)
-    try:
-        dumper.open()
-        for node in nodes:
-            dumper.serialize(node)
-        dumper.close()
-    finally:
-        dumper.dispose()
-    if getvalue:
-        return getvalue()
-
-def serialize(node, stream=None, Dumper=Dumper, **kwds):
-    """
-    Serialize a representation tree into a YAML stream.
-    If stream is None, return the produced string instead.
-    """
-    return serialize_all([node], stream, Dumper=Dumper, **kwds)
-
-def dump_all(documents, stream=None, Dumper=Dumper,
-        default_style=None, default_flow_style=None,
-        canonical=None, indent=None, width=None,
-        allow_unicode=None, line_break=None,
-        encoding='utf-8', explicit_start=None, explicit_end=None,
-        version=None, tags=None):
-    """
-    Serialize a sequence of Python objects into a YAML stream.
-    If stream is None, return the produced string instead.
-    """
-    getvalue = None
-    if stream is None:
-        if encoding is None:
-            from StringIO import StringIO
-        else:
-            from cStringIO import StringIO
-        stream = StringIO()
-        getvalue = stream.getvalue
-    dumper = Dumper(stream, default_style=default_style,
-            default_flow_style=default_flow_style,
-            canonical=canonical, indent=indent, width=width,
-            allow_unicode=allow_unicode, line_break=line_break,
-            encoding=encoding, version=version, tags=tags,
-            explicit_start=explicit_start, explicit_end=explicit_end)
-    try:
-        dumper.open()
-        for data in documents:
-            dumper.represent(data)
-        dumper.close()
-    finally:
-        dumper.dispose()
-    if getvalue:
-        return getvalue()
-
-def dump(data, stream=None, Dumper=Dumper, **kwds):
-    """
-    Serialize a Python object into a YAML stream.
-    If stream is None, return the produced string instead.
-    """
-    return dump_all([data], stream, Dumper=Dumper, **kwds)
-
-def safe_dump_all(documents, stream=None, **kwds):
-    """
-    Serialize a sequence of Python objects into a YAML stream.
-    Produce only basic YAML tags.
-    If stream is None, return the produced string instead.
-    """
-    return dump_all(documents, stream, Dumper=SafeDumper, **kwds)
-
-def safe_dump(data, stream=None, **kwds):
-    """
-    Serialize a Python object into a YAML stream.
-    Produce only basic YAML tags.
-    If stream is None, return the produced string instead.
-    """
-    return dump_all([data], stream, Dumper=SafeDumper, **kwds)
-
-def add_implicit_resolver(tag, regexp, first=None,
-        Loader=Loader, Dumper=Dumper):
-    """
-    Add an implicit scalar detector.
-    If an implicit scalar value matches the given regexp,
-    the corresponding tag is assigned to the scalar.
-    first is a sequence of possible initial characters or None.
-    """
-    Loader.add_implicit_resolver(tag, regexp, first)
-    Dumper.add_implicit_resolver(tag, regexp, first)
-
-def add_path_resolver(tag, path, kind=None, Loader=Loader, Dumper=Dumper):
-    """
-    Add a path based resolver for the given tag.
-    A path is a list of keys that forms a path
-    to a node in the representation tree.
-    Keys can be string values, integers, or None.
-    """
-    Loader.add_path_resolver(tag, path, kind)
-    Dumper.add_path_resolver(tag, path, kind)
-
-def add_constructor(tag, constructor, Loader=Loader):
-    """
-    Add a constructor for the given tag.
-    Constructor is a function that accepts a Loader instance
-    and a node object and produces the corresponding Python object.
-    """
-    Loader.add_constructor(tag, constructor)
-
-def add_multi_constructor(tag_prefix, multi_constructor, Loader=Loader):
-    """
-    Add a multi-constructor for the given tag prefix.
-    Multi-constructor is called for a node if its tag starts with tag_prefix.
-    Multi-constructor accepts a Loader instance, a tag suffix,
-    and a node object and produces the corresponding Python object.
-    """
-    Loader.add_multi_constructor(tag_prefix, multi_constructor)
-
-def add_representer(data_type, representer, Dumper=Dumper):
-    """
-    Add a representer for the given type.
-    Representer is a function accepting a Dumper instance
-    and an instance of the given data type
-    and producing the corresponding representation node.
-    """
-    Dumper.add_representer(data_type, representer)
-
-def add_multi_representer(data_type, multi_representer, Dumper=Dumper):
-    """
-    Add a representer for the given type.
-    Multi-representer is a function accepting a Dumper instance
-    and an instance of the given data type or subtype
-    and producing the corresponding representation node.
-    """
-    Dumper.add_multi_representer(data_type, multi_representer)
-
-class YAMLObjectMetaclass(type):
-    """
-    The metaclass for YAMLObject.
-    """
-    def __init__(cls, name, bases, kwds):
-        super(YAMLObjectMetaclass, cls).__init__(name, bases, kwds)
-        if 'yaml_tag' in kwds and kwds['yaml_tag'] is not None:
-            cls.yaml_loader.add_constructor(cls.yaml_tag, cls.from_yaml)
-            cls.yaml_dumper.add_representer(cls, cls.to_yaml)
-
-class YAMLObject(object):
-    """
-    An object that can dump itself to a YAML stream
-    and load itself from a YAML stream.
-    """
-
-    __metaclass__ = YAMLObjectMetaclass
-    __slots__ = ()  # no direct instantiation, so allow immutable subclasses
-
-    yaml_loader = Loader
-    yaml_dumper = Dumper
-
-    yaml_tag = None
-    yaml_flow_style = None
-
-    def from_yaml(cls, loader, node):
-        """
-        Convert a representation node to a Python object.
-        """
-        return loader.construct_yaml_object(node, cls)
-    from_yaml = classmethod(from_yaml)
-
-    def to_yaml(cls, dumper, data):
-        """
-        Convert a Python object to a representation node.
-        """
-        return dumper.represent_yaml_object(cls.yaml_tag, data, cls,
-                flow_style=cls.yaml_flow_style)
-    to_yaml = classmethod(to_yaml)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/composer.py b/collectors/python.d.plugin/python_modules/pyyaml2/composer.py
deleted file mode 100644
index 6b41b8067..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/composer.py
+++ /dev/null
@@ -1,140 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['Composer', 'ComposerError']
-
-from error import MarkedYAMLError
-from events import *
-from nodes import *
-
-class ComposerError(MarkedYAMLError):
-    pass
-
-class Composer(object):
-
-    def __init__(self):
-        self.anchors = {}
-
-    def check_node(self):
-        # Drop the STREAM-START event.
-        if self.check_event(StreamStartEvent):
-            self.get_event()
-
-        # If there are more documents available?
-        return not self.check_event(StreamEndEvent)
-
-    def get_node(self):
-        # Get the root node of the next document.
-        if not self.check_event(StreamEndEvent):
-            return self.compose_document()
-
-    def get_single_node(self):
-        # Drop the STREAM-START event.
-        self.get_event()
-
-        # Compose a document if the stream is not empty.
-        document = None
-        if not self.check_event(StreamEndEvent):
-            document = self.compose_document()
-
-        # Ensure that the stream contains no more documents.
-        if not self.check_event(StreamEndEvent):
-            event = self.get_event()
-            raise ComposerError("expected a single document in the stream",
-                    document.start_mark, "but found another document",
-                    event.start_mark)
-
-        # Drop the STREAM-END event.
-        self.get_event()
-
-        return document
-
-    def compose_document(self):
-        # Drop the DOCUMENT-START event.
-        self.get_event()
-
-        # Compose the root node.
-        node = self.compose_node(None, None)
-
-        # Drop the DOCUMENT-END event.
-        self.get_event()
-
-        self.anchors = {}
-        return node
-
-    def compose_node(self, parent, index):
-        if self.check_event(AliasEvent):
-            event = self.get_event()
-            anchor = event.anchor
-            if anchor not in self.anchors:
-                raise ComposerError(None, None, "found undefined alias %r"
-                        % anchor.encode('utf-8'), event.start_mark)
-            return self.anchors[anchor]
-        event = self.peek_event()
-        anchor = event.anchor
-        if anchor is not None:
-            if anchor in self.anchors:
-                raise ComposerError("found duplicate anchor %r; first occurence"
-                        % anchor.encode('utf-8'), self.anchors[anchor].start_mark,
-                        "second occurence", event.start_mark)
-        self.descend_resolver(parent, index)
-        if self.check_event(ScalarEvent):
-            node = self.compose_scalar_node(anchor)
-        elif self.check_event(SequenceStartEvent):
-            node = self.compose_sequence_node(anchor)
-        elif self.check_event(MappingStartEvent):
-            node = self.compose_mapping_node(anchor)
-        self.ascend_resolver()
-        return node
-
-    def compose_scalar_node(self, anchor):
-        event = self.get_event()
-        tag = event.tag
-        if tag is None or tag == u'!':
-            tag = self.resolve(ScalarNode, event.value, event.implicit)
-        node = ScalarNode(tag, event.value,
-                event.start_mark, event.end_mark, style=event.style)
-        if anchor is not None:
-            self.anchors[anchor] = node
-        return node
-
-    def compose_sequence_node(self, anchor):
-        start_event = self.get_event()
-        tag = start_event.tag
-        if tag is None or tag == u'!':
-            tag = self.resolve(SequenceNode, None, start_event.implicit)
-        node = SequenceNode(tag, [],
-                start_event.start_mark, None,
-                flow_style=start_event.flow_style)
-        if anchor is not None:
-            self.anchors[anchor] = node
-        index = 0
-        while not self.check_event(SequenceEndEvent):
-            node.value.append(self.compose_node(node, index))
-            index += 1
-        end_event = self.get_event()
-        node.end_mark = end_event.end_mark
-        return node
-
-    def compose_mapping_node(self, anchor):
-        start_event = self.get_event()
-        tag = start_event.tag
-        if tag is None or tag == u'!':
-            tag = self.resolve(MappingNode, None, start_event.implicit)
-        node = MappingNode(tag, [],
-                start_event.start_mark, None,
-                flow_style=start_event.flow_style)
-        if anchor is not None:
-            self.anchors[anchor] = node
-        while not self.check_event(MappingEndEvent):
-            #key_event = self.peek_event()
-            item_key = self.compose_node(node, None)
-            #if item_key in node.value:
-            #    raise ComposerError("while composing a mapping", start_event.start_mark,
-            #            "found duplicate key", key_event.start_mark)
-            item_value = self.compose_node(node, item_key)
-            #node.value[item_key] = item_value
-            node.value.append((item_key, item_value))
-        end_event = self.get_event()
-        node.end_mark = end_event.end_mark
-        return node
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/constructor.py b/collectors/python.d.plugin/python_modules/pyyaml2/constructor.py
deleted file mode 100644
index 8ad1b90a7..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/constructor.py
+++ /dev/null
@@ -1,676 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['BaseConstructor', 'SafeConstructor', 'Constructor',
-    'ConstructorError']
-
-from error import *
-from nodes import *
-
-import datetime
-
-import binascii, re, sys, types
-
-class ConstructorError(MarkedYAMLError):
-    pass
-
-class BaseConstructor(object):
-
-    yaml_constructors = {}
-    yaml_multi_constructors = {}
-
-    def __init__(self):
-        self.constructed_objects = {}
-        self.recursive_objects = {}
-        self.state_generators = []
-        self.deep_construct = False
-
-    def check_data(self):
-        # If there are more documents available?
-        return self.check_node()
-
-    def get_data(self):
-        # Construct and return the next document.
-        if self.check_node():
-            return self.construct_document(self.get_node())
-
-    def get_single_data(self):
-        # Ensure that the stream contains a single document and construct it.
-        node = self.get_single_node()
-        if node is not None:
-            return self.construct_document(node)
-        return None
-
-    def construct_document(self, node):
-        data = self.construct_object(node)
-        while self.state_generators:
-            state_generators = self.state_generators
-            self.state_generators = []
-            for generator in state_generators:
-                for dummy in generator:
-                    pass
-        self.constructed_objects = {}
-        self.recursive_objects = {}
-        self.deep_construct = False
-        return data
-
-    def construct_object(self, node, deep=False):
-        if node in self.constructed_objects:
-            return self.constructed_objects[node]
-        if deep:
-            old_deep = self.deep_construct
-            self.deep_construct = True
-        if node in self.recursive_objects:
-            raise ConstructorError(None, None,
-                    "found unconstructable recursive node", node.start_mark)
-        self.recursive_objects[node] = None
-        constructor = None
-        tag_suffix = None
-        if node.tag in self.yaml_constructors:
-            constructor = self.yaml_constructors[node.tag]
-        else:
-            for tag_prefix in self.yaml_multi_constructors:
-                if node.tag.startswith(tag_prefix):
-                    tag_suffix = node.tag[len(tag_prefix):]
-                    constructor = self.yaml_multi_constructors[tag_prefix]
-                    break
-            else:
-                if None in self.yaml_multi_constructors:
-                    tag_suffix = node.tag
-                    constructor = self.yaml_multi_constructors[None]
-                elif None in self.yaml_constructors:
-                    constructor = self.yaml_constructors[None]
-                elif isinstance(node, ScalarNode):
-                    constructor = self.__class__.construct_scalar
-                elif isinstance(node, SequenceNode):
-                    constructor = self.__class__.construct_sequence
-                elif isinstance(node, MappingNode):
-                    constructor = self.__class__.construct_mapping
-        if tag_suffix is None:
-            data = constructor(self, node)
-        else:
-            data = constructor(self, tag_suffix, node)
-        if isinstance(data, types.GeneratorType):
-            generator = data
-            data = generator.next()
-            if self.deep_construct:
-                for dummy in generator:
-                    pass
-            else:
-                self.state_generators.append(generator)
-        self.constructed_objects[node] = data
-        del self.recursive_objects[node]
-        if deep:
-            self.deep_construct = old_deep
-        return data
-
-    def construct_scalar(self, node):
-        if not isinstance(node, ScalarNode):
-            raise ConstructorError(None, None,
-                    "expected a scalar node, but found %s" % node.id,
-                    node.start_mark)
-        return node.value
-
-    def construct_sequence(self, node, deep=False):
-        if not isinstance(node, SequenceNode):
-            raise ConstructorError(None, None,
-                    "expected a sequence node, but found %s" % node.id,
-                    node.start_mark)
-        return [self.construct_object(child, deep=deep)
-                for child in node.value]
-
-    def construct_mapping(self, node, deep=False):
-        if not isinstance(node, MappingNode):
-            raise ConstructorError(None, None,
-                    "expected a mapping node, but found %s" % node.id,
-                    node.start_mark)
-        mapping = {}
-        for key_node, value_node in node.value:
-            key = self.construct_object(key_node, deep=deep)
-            try:
-                hash(key)
-            except TypeError, exc:
-                raise ConstructorError("while constructing a mapping", node.start_mark,
-                        "found unacceptable key (%s)" % exc, key_node.start_mark)
-            value = self.construct_object(value_node, deep=deep)
-            mapping[key] = value
-        return mapping
-
-    def construct_pairs(self, node, deep=False):
-        if not isinstance(node, MappingNode):
-            raise ConstructorError(None, None,
-                    "expected a mapping node, but found %s" % node.id,
-                    node.start_mark)
-        pairs = []
-        for key_node, value_node in node.value:
-            key = self.construct_object(key_node, deep=deep)
-            value = self.construct_object(value_node, deep=deep)
-            pairs.append((key, value))
-        return pairs
-
-    def add_constructor(cls, tag, constructor):
-        if not 'yaml_constructors' in cls.__dict__:
-            cls.yaml_constructors = cls.yaml_constructors.copy()
-        cls.yaml_constructors[tag] = constructor
-    add_constructor = classmethod(add_constructor)
-
-    def add_multi_constructor(cls, tag_prefix, multi_constructor):
-        if not 'yaml_multi_constructors' in cls.__dict__:
-            cls.yaml_multi_constructors = cls.yaml_multi_constructors.copy()
-        cls.yaml_multi_constructors[tag_prefix] = multi_constructor
-    add_multi_constructor = classmethod(add_multi_constructor)
-
-class SafeConstructor(BaseConstructor):
-
-    def construct_scalar(self, node):
-        if isinstance(node, MappingNode):
-            for key_node, value_node in node.value:
-                if key_node.tag == u'tag:yaml.org,2002:value':
-                    return self.construct_scalar(value_node)
-        return BaseConstructor.construct_scalar(self, node)
-
-    def flatten_mapping(self, node):
-        merge = []
-        index = 0
-        while index < len(node.value):
-            key_node, value_node = node.value[index]
-            if key_node.tag == u'tag:yaml.org,2002:merge':
-                del node.value[index]
-                if isinstance(value_node, MappingNode):
-                    self.flatten_mapping(value_node)
-                    merge.extend(value_node.value)
-                elif isinstance(value_node, SequenceNode):
-                    submerge = []
-                    for subnode in value_node.value:
-                        if not isinstance(subnode, MappingNode):
-                            raise ConstructorError("while constructing a mapping",
-                                    node.start_mark,
-                                    "expected a mapping for merging, but found %s"
-                                    % subnode.id, subnode.start_mark)
-                        self.flatten_mapping(subnode)
-                        submerge.append(subnode.value)
-                    submerge.reverse()
-                    for value in submerge:
-                        merge.extend(value)
-                else:
-                    raise ConstructorError("while constructing a mapping", node.start_mark,
-                            "expected a mapping or list of mappings for merging, but found %s"
-                            % value_node.id, value_node.start_mark)
-            elif key_node.tag == u'tag:yaml.org,2002:value':
-                key_node.tag = u'tag:yaml.org,2002:str'
-                index += 1
-            else:
-                index += 1
-        if merge:
-            node.value = merge + node.value
-
-    def construct_mapping(self, node, deep=False):
-        if isinstance(node, MappingNode):
-            self.flatten_mapping(node)
-        return BaseConstructor.construct_mapping(self, node, deep=deep)
-
-    def construct_yaml_null(self, node):
-        self.construct_scalar(node)
-        return None
-
-    bool_values = {
-        u'yes':     True,
-        u'no':      False,
-        u'true':    True,
-        u'false':   False,
-        u'on':      True,
-        u'off':     False,
-    }
-
-    def construct_yaml_bool(self, node):
-        value = self.construct_scalar(node)
-        return self.bool_values[value.lower()]
-
-    def construct_yaml_int(self, node):
-        value = str(self.construct_scalar(node))
-        value = value.replace('_', '')
-        sign = +1
-        if value[0] == '-':
-            sign = -1
-        if value[0] in '+-':
-            value = value[1:]
-        if value == '0':
-            return 0
-        elif value.startswith('0b'):
-            return sign*int(value[2:], 2)
-        elif value.startswith('0x'):
-            return sign*int(value[2:], 16)
-        elif value[0] == '0':
-            return sign*int(value, 8)
-        elif ':' in value:
-            digits = [int(part) for part in value.split(':')]
-            digits.reverse()
-            base = 1
-            value = 0
-            for digit in digits:
-                value += digit*base
-                base *= 60
-            return sign*value
-        else:
-            return sign*int(value)
-
-    inf_value = 1e300
-    while inf_value != inf_value*inf_value:
-        inf_value *= inf_value
-    nan_value = -inf_value/inf_value   # Trying to make a quiet NaN (like C99).
-
-    def construct_yaml_float(self, node):
-        value = str(self.construct_scalar(node))
-        value = value.replace('_', '').lower()
-        sign = +1
-        if value[0] == '-':
-            sign = -1
-        if value[0] in '+-':
-            value = value[1:]
-        if value == '.inf':
-            return sign*self.inf_value
-        elif value == '.nan':
-            return self.nan_value
-        elif ':' in value:
-            digits = [float(part) for part in value.split(':')]
-            digits.reverse()
-            base = 1
-            value = 0.0
-            for digit in digits:
-                value += digit*base
-                base *= 60
-            return sign*value
-        else:
-            return sign*float(value)
-
-    def construct_yaml_binary(self, node):
-        value = self.construct_scalar(node)
-        try:
-            return str(value).decode('base64')
-        except (binascii.Error, UnicodeEncodeError), exc:
-            raise ConstructorError(None, None,
-                    "failed to decode base64 data: %s" % exc, node.start_mark) 
-
-    timestamp_regexp = re.compile(
-            ur'''^(?P<year>[0-9][0-9][0-9][0-9])
-                -(?P<month>[0-9][0-9]?)
-                -(?P<day>[0-9][0-9]?)
-                (?:(?:[Tt]|[ \t]+)
-                (?P<hour>[0-9][0-9]?)
-                :(?P<minute>[0-9][0-9])
-                :(?P<second>[0-9][0-9])
-                (?:\.(?P<fraction>[0-9]*))?
-                (?:[ \t]*(?P<tz>Z|(?P<tz_sign>[-+])(?P<tz_hour>[0-9][0-9]?)
-                (?::(?P<tz_minute>[0-9][0-9]))?))?)?$''', re.X)
-
-    def construct_yaml_timestamp(self, node):
-        value = self.construct_scalar(node)
-        match = self.timestamp_regexp.match(node.value)
-        values = match.groupdict()
-        year = int(values['year'])
-        month = int(values['month'])
-        day = int(values['day'])
-        if not values['hour']:
-            return datetime.date(year, month, day)
-        hour = int(values['hour'])
-        minute = int(values['minute'])
-        second = int(values['second'])
-        fraction = 0
-        if values['fraction']:
-            fraction = values['fraction'][:6]
-            while len(fraction) < 6:
-                fraction += '0'
-            fraction = int(fraction)
-        delta = None
-        if values['tz_sign']:
-            tz_hour = int(values['tz_hour'])
-            tz_minute = int(values['tz_minute'] or 0)
-            delta = datetime.timedelta(hours=tz_hour, minutes=tz_minute)
-            if values['tz_sign'] == '-':
-                delta = -delta
-        data = datetime.datetime(year, month, day, hour, minute, second, fraction)
-        if delta:
-            data -= delta
-        return data
-
-    def construct_yaml_omap(self, node):
-        # Note: we do not check for duplicate keys, because it's too
-        # CPU-expensive.
-        omap = []
-        yield omap
-        if not isinstance(node, SequenceNode):
-            raise ConstructorError("while constructing an ordered map", node.start_mark,
-                    "expected a sequence, but found %s" % node.id, node.start_mark)
-        for subnode in node.value:
-            if not isinstance(subnode, MappingNode):
-                raise ConstructorError("while constructing an ordered map", node.start_mark,
-                        "expected a mapping of length 1, but found %s" % subnode.id,
-                        subnode.start_mark)
-            if len(subnode.value) != 1:
-                raise ConstructorError("while constructing an ordered map", node.start_mark,
-                        "expected a single mapping item, but found %d items" % len(subnode.value),
-                        subnode.start_mark)
-            key_node, value_node = subnode.value[0]
-            key = self.construct_object(key_node)
-            value = self.construct_object(value_node)
-            omap.append((key, value))
-
-    def construct_yaml_pairs(self, node):
-        # Note: the same code as `construct_yaml_omap`.
-        pairs = []
-        yield pairs
-        if not isinstance(node, SequenceNode):
-            raise ConstructorError("while constructing pairs", node.start_mark,
-                    "expected a sequence, but found %s" % node.id, node.start_mark)
-        for subnode in node.value:
-            if not isinstance(subnode, MappingNode):
-                raise ConstructorError("while constructing pairs", node.start_mark,
-                        "expected a mapping of length 1, but found %s" % subnode.id,
-                        subnode.start_mark)
-            if len(subnode.value) != 1:
-                raise ConstructorError("while constructing pairs", node.start_mark,
-                        "expected a single mapping item, but found %d items" % len(subnode.value),
-                        subnode.start_mark)
-            key_node, value_node = subnode.value[0]
-            key = self.construct_object(key_node)
-            value = self.construct_object(value_node)
-            pairs.append((key, value))
-
-    def construct_yaml_set(self, node):
-        data = set()
-        yield data
-        value = self.construct_mapping(node)
-        data.update(value)
-
-    def construct_yaml_str(self, node):
-        value = self.construct_scalar(node)
-        try:
-            return value.encode('ascii')
-        except UnicodeEncodeError:
-            return value
-
-    def construct_yaml_seq(self, node):
-        data = []
-        yield data
-        data.extend(self.construct_sequence(node))
-
-    def construct_yaml_map(self, node):
-        data = {}
-        yield data
-        value = self.construct_mapping(node)
-        data.update(value)
-
-    def construct_yaml_object(self, node, cls):
-        data = cls.__new__(cls)
-        yield data
-        if hasattr(data, '__setstate__'):
-            state = self.construct_mapping(node, deep=True)
-            data.__setstate__(state)
-        else:
-            state = self.construct_mapping(node)
-            data.__dict__.update(state)
-
-    def construct_undefined(self, node):
-        raise ConstructorError(None, None,
-                "could not determine a constructor for the tag %r" % node.tag.encode('utf-8'),
-                node.start_mark)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:null',
-        SafeConstructor.construct_yaml_null)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:bool',
-        SafeConstructor.construct_yaml_bool)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:int',
-        SafeConstructor.construct_yaml_int)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:float',
-        SafeConstructor.construct_yaml_float)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:binary',
-        SafeConstructor.construct_yaml_binary)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:timestamp',
-        SafeConstructor.construct_yaml_timestamp)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:omap',
-        SafeConstructor.construct_yaml_omap)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:pairs',
-        SafeConstructor.construct_yaml_pairs)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:set',
-        SafeConstructor.construct_yaml_set)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:str',
-        SafeConstructor.construct_yaml_str)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:seq',
-        SafeConstructor.construct_yaml_seq)
-
-SafeConstructor.add_constructor(
-        u'tag:yaml.org,2002:map',
-        SafeConstructor.construct_yaml_map)
-
-SafeConstructor.add_constructor(None,
-        SafeConstructor.construct_undefined)
-
-class Constructor(SafeConstructor):
-
-    def construct_python_str(self, node):
-        return self.construct_scalar(node).encode('utf-8')
-
-    def construct_python_unicode(self, node):
-        return self.construct_scalar(node)
-
-    def construct_python_long(self, node):
-        return long(self.construct_yaml_int(node))
-
-    def construct_python_complex(self, node):
-       return complex(self.construct_scalar(node))
-
-    def construct_python_tuple(self, node):
-        return tuple(self.construct_sequence(node))
-
-    def find_python_module(self, name, mark):
-        if not name:
-            raise ConstructorError("while constructing a Python module", mark,
-                    "expected non-empty name appended to the tag", mark)
-        try:
-            __import__(name)
-        except ImportError, exc:
-            raise ConstructorError("while constructing a Python module", mark,
-                    "cannot find module %r (%s)" % (name.encode('utf-8'), exc), mark)
-        return sys.modules[name]
-
-    def find_python_name(self, name, mark):
-        if not name:
-            raise ConstructorError("while constructing a Python object", mark,
-                    "expected non-empty name appended to the tag", mark)
-        if u'.' in name:
-            module_name, object_name = name.rsplit('.', 1)
-        else:
-            module_name = '__builtin__'
-            object_name = name
-        try:
-            __import__(module_name)
-        except ImportError, exc:
-            raise ConstructorError("while constructing a Python object", mark,
-                    "cannot find module %r (%s)" % (module_name.encode('utf-8'), exc), mark)
-        module = sys.modules[module_name]
-        if not hasattr(module, object_name):
-            raise ConstructorError("while constructing a Python object", mark,
-                    "cannot find %r in the module %r" % (object_name.encode('utf-8'),
-                        module.__name__), mark)
-        return getattr(module, object_name)
-
-    def construct_python_name(self, suffix, node):
-        value = self.construct_scalar(node)
-        if value:
-            raise ConstructorError("while constructing a Python name", node.start_mark,
-                    "expected the empty value, but found %r" % value.encode('utf-8'),
-                    node.start_mark)
-        return self.find_python_name(suffix, node.start_mark)
-
-    def construct_python_module(self, suffix, node):
-        value = self.construct_scalar(node)
-        if value:
-            raise ConstructorError("while constructing a Python module", node.start_mark,
-                    "expected the empty value, but found %r" % value.encode('utf-8'),
-                    node.start_mark)
-        return self.find_python_module(suffix, node.start_mark)
-
-    class classobj: pass
-
-    def make_python_instance(self, suffix, node,
-            args=None, kwds=None, newobj=False):
-        if not args:
-            args = []
-        if not kwds:
-            kwds = {}
-        cls = self.find_python_name(suffix, node.start_mark)
-        if newobj and isinstance(cls, type(self.classobj))  \
-                and not args and not kwds:
-            instance = self.classobj()
-            instance.__class__ = cls
-            return instance
-        elif newobj and isinstance(cls, type):
-            return cls.__new__(cls, *args, **kwds)
-        else:
-            return cls(*args, **kwds)
-
-    def set_python_instance_state(self, instance, state):
-        if hasattr(instance, '__setstate__'):
-            instance.__setstate__(state)
-        else:
-            slotstate = {}
-            if isinstance(state, tuple) and len(state) == 2:
-                state, slotstate = state
-            if hasattr(instance, '__dict__'):
-                instance.__dict__.update(state)
-            elif state:
-                slotstate.update(state)
-            for key, value in slotstate.items():
-                setattr(object, key, value)
-
-    def construct_python_object(self, suffix, node):
-        # Format:
-        #   !!python/object:module.name { ... state ... }
-        instance = self.make_python_instance(suffix, node, newobj=True)
-        yield instance
-        deep = hasattr(instance, '__setstate__')
-        state = self.construct_mapping(node, deep=deep)
-        self.set_python_instance_state(instance, state)
-
-    def construct_python_object_apply(self, suffix, node, newobj=False):
-        # Format:
-        #   !!python/object/apply       # (or !!python/object/new)
-        #   args: [ ... arguments ... ]
-        #   kwds: { ... keywords ... }
-        #   state: ... state ...
-        #   listitems: [ ... listitems ... ]
-        #   dictitems: { ... dictitems ... }
-        # or short format:
-        #   !!python/object/apply [ ... arguments ... ]
-        # The difference between !!python/object/apply and !!python/object/new
-        # is how an object is created, check make_python_instance for details.
-        if isinstance(node, SequenceNode):
-            args = self.construct_sequence(node, deep=True)
-            kwds = {}
-            state = {}
-            listitems = []
-            dictitems = {}
-        else:
-            value = self.construct_mapping(node, deep=True)
-            args = value.get('args', [])
-            kwds = value.get('kwds', {})
-            state = value.get('state', {})
-            listitems = value.get('listitems', [])
-            dictitems = value.get('dictitems', {})
-        instance = self.make_python_instance(suffix, node, args, kwds, newobj)
-        if state:
-            self.set_python_instance_state(instance, state)
-        if listitems:
-            instance.extend(listitems)
-        if dictitems:
-            for key in dictitems:
-                instance[key] = dictitems[key]
-        return instance
-
-    def construct_python_object_new(self, suffix, node):
-        return self.construct_python_object_apply(suffix, node, newobj=True)
-
-Constructor.add_constructor(
-    u'tag:yaml.org,2002:python/none',
-    Constructor.construct_yaml_null)
-
-Constructor.add_constructor(
-    u'tag:yaml.org,2002:python/bool',
-    Constructor.construct_yaml_bool)
-
-Constructor.add_constructor(
-    u'tag:yaml.org,2002:python/str',
-    Constructor.construct_python_str)
-
-Constructor.add_constructor(
-    u'tag:yaml.org,2002:python/unicode',
-    Constructor.construct_python_unicode)
-
-Constructor.add_constructor(
-    u'tag:yaml.org,2002:python/int',
-    Constructor.construct_yaml_int)
-
-Constructor.add_constructor(
-    u'tag:yaml.org,2002:python/long',
-    Constructor.construct_python_long)
-
-Constructor.add_constructor(
-    u'tag:yaml.org,2002:python/float',
-    Constructor.construct_yaml_float)
-
-Constructor.add_constructor(
-    u'tag:yaml.org,2002:python/complex',
-    Constructor.construct_python_complex)
-
-Constructor.add_constructor(
-    u'tag:yaml.org,2002:python/list',
-    Constructor.construct_yaml_seq)
-
-Constructor.add_constructor(
-    u'tag:yaml.org,2002:python/tuple',
-    Constructor.construct_python_tuple)
-
-Constructor.add_constructor(
-    u'tag:yaml.org,2002:python/dict',
-    Constructor.construct_yaml_map)
-
-Constructor.add_multi_constructor(
-    u'tag:yaml.org,2002:python/name:',
-    Constructor.construct_python_name)
-
-Constructor.add_multi_constructor(
-    u'tag:yaml.org,2002:python/module:',
-    Constructor.construct_python_module)
-
-Constructor.add_multi_constructor(
-    u'tag:yaml.org,2002:python/object:',
-    Constructor.construct_python_object)
-
-Constructor.add_multi_constructor(
-    u'tag:yaml.org,2002:python/object/apply:',
-    Constructor.construct_python_object_apply)
-
-Constructor.add_multi_constructor(
-    u'tag:yaml.org,2002:python/object/new:',
-    Constructor.construct_python_object_new)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/cyaml.py b/collectors/python.d.plugin/python_modules/pyyaml2/cyaml.py
deleted file mode 100644
index 2858ab479..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/cyaml.py
+++ /dev/null
@@ -1,86 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['CBaseLoader', 'CSafeLoader', 'CLoader',
-        'CBaseDumper', 'CSafeDumper', 'CDumper']
-
-from _yaml import CParser, CEmitter
-
-from constructor import *
-
-from serializer import *
-from representer import *
-
-from resolver import *
-
-class CBaseLoader(CParser, BaseConstructor, BaseResolver):
-
-    def __init__(self, stream):
-        CParser.__init__(self, stream)
-        BaseConstructor.__init__(self)
-        BaseResolver.__init__(self)
-
-class CSafeLoader(CParser, SafeConstructor, Resolver):
-
-    def __init__(self, stream):
-        CParser.__init__(self, stream)
-        SafeConstructor.__init__(self)
-        Resolver.__init__(self)
-
-class CLoader(CParser, Constructor, Resolver):
-
-    def __init__(self, stream):
-        CParser.__init__(self, stream)
-        Constructor.__init__(self)
-        Resolver.__init__(self)
-
-class CBaseDumper(CEmitter, BaseRepresenter, BaseResolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        CEmitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width, encoding=encoding,
-                allow_unicode=allow_unicode, line_break=line_break,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        Representer.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
-class CSafeDumper(CEmitter, SafeRepresenter, Resolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        CEmitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width, encoding=encoding,
-                allow_unicode=allow_unicode, line_break=line_break,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        SafeRepresenter.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
-class CDumper(CEmitter, Serializer, Representer, Resolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        CEmitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width, encoding=encoding,
-                allow_unicode=allow_unicode, line_break=line_break,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        Representer.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/dumper.py b/collectors/python.d.plugin/python_modules/pyyaml2/dumper.py
deleted file mode 100644
index 3685cbeeb..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/dumper.py
+++ /dev/null
@@ -1,63 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['BaseDumper', 'SafeDumper', 'Dumper']
-
-from emitter import *
-from serializer import *
-from representer import *
-from resolver import *
-
-class BaseDumper(Emitter, Serializer, BaseRepresenter, BaseResolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        Emitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width,
-                allow_unicode=allow_unicode, line_break=line_break)
-        Serializer.__init__(self, encoding=encoding,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        Representer.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
-class SafeDumper(Emitter, Serializer, SafeRepresenter, Resolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        Emitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width,
-                allow_unicode=allow_unicode, line_break=line_break)
-        Serializer.__init__(self, encoding=encoding,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        SafeRepresenter.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
-class Dumper(Emitter, Serializer, Representer, Resolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        Emitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width,
-                allow_unicode=allow_unicode, line_break=line_break)
-        Serializer.__init__(self, encoding=encoding,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        Representer.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/emitter.py b/collectors/python.d.plugin/python_modules/pyyaml2/emitter.py
deleted file mode 100644
index 9a460a0fd..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/emitter.py
+++ /dev/null
@@ -1,1141 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-# Emitter expects events obeying the following grammar:
-# stream ::= STREAM-START document* STREAM-END
-# document ::= DOCUMENT-START node DOCUMENT-END
-# node ::= SCALAR | sequence | mapping
-# sequence ::= SEQUENCE-START node* SEQUENCE-END
-# mapping ::= MAPPING-START (node node)* MAPPING-END
-
-__all__ = ['Emitter', 'EmitterError']
-
-from error import YAMLError
-from events import *
-
-class EmitterError(YAMLError):
-    pass
-
-class ScalarAnalysis(object):
-    def __init__(self, scalar, empty, multiline,
-            allow_flow_plain, allow_block_plain,
-            allow_single_quoted, allow_double_quoted,
-            allow_block):
-        self.scalar = scalar
-        self.empty = empty
-        self.multiline = multiline
-        self.allow_flow_plain = allow_flow_plain
-        self.allow_block_plain = allow_block_plain
-        self.allow_single_quoted = allow_single_quoted
-        self.allow_double_quoted = allow_double_quoted
-        self.allow_block = allow_block
-
-class Emitter(object):
-
-    DEFAULT_TAG_PREFIXES = {
-        u'!' : u'!',
-        u'tag:yaml.org,2002:' : u'!!',
-    }
-
-    def __init__(self, stream, canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None):
-
-        # The stream should have the methods `write` and possibly `flush`.
-        self.stream = stream
-
-        # Encoding can be overriden by STREAM-START.
-        self.encoding = None
-
-        # Emitter is a state machine with a stack of states to handle nested
-        # structures.
-        self.states = []
-        self.state = self.expect_stream_start
-
-        # Current event and the event queue.
-        self.events = []
-        self.event = None
-
-        # The current indentation level and the stack of previous indents.
-        self.indents = []
-        self.indent = None
-
-        # Flow level.
-        self.flow_level = 0
-
-        # Contexts.
-        self.root_context = False
-        self.sequence_context = False
-        self.mapping_context = False
-        self.simple_key_context = False
-
-        # Characteristics of the last emitted character:
-        #  - current position.
-        #  - is it a whitespace?
-        #  - is it an indention character
-        #    (indentation space, '-', '?', or ':')?
-        self.line = 0
-        self.column = 0
-        self.whitespace = True
-        self.indention = True
-
-        # Whether the document requires an explicit document indicator
-        self.open_ended = False
-
-        # Formatting details.
-        self.canonical = canonical
-        self.allow_unicode = allow_unicode
-        self.best_indent = 2
-        if indent and 1 < indent < 10:
-            self.best_indent = indent
-        self.best_width = 80
-        if width and width > self.best_indent*2:
-            self.best_width = width
-        self.best_line_break = u'\n'
-        if line_break in [u'\r', u'\n', u'\r\n']:
-            self.best_line_break = line_break
-
-        # Tag prefixes.
-        self.tag_prefixes = None
-
-        # Prepared anchor and tag.
-        self.prepared_anchor = None
-        self.prepared_tag = None
-
-        # Scalar analysis and style.
-        self.analysis = None
-        self.style = None
-
-    def dispose(self):
-        # Reset the state attributes (to clear self-references)
-        self.states = []
-        self.state = None
-
-    def emit(self, event):
-        self.events.append(event)
-        while not self.need_more_events():
-            self.event = self.events.pop(0)
-            self.state()
-            self.event = None
-
-    # In some cases, we wait for a few next events before emitting.
-
-    def need_more_events(self):
-        if not self.events:
-            return True
-        event = self.events[0]
-        if isinstance(event, DocumentStartEvent):
-            return self.need_events(1)
-        elif isinstance(event, SequenceStartEvent):
-            return self.need_events(2)
-        elif isinstance(event, MappingStartEvent):
-            return self.need_events(3)
-        else:
-            return False
-
-    def need_events(self, count):
-        level = 0
-        for event in self.events[1:]:
-            if isinstance(event, (DocumentStartEvent, CollectionStartEvent)):
-                level += 1
-            elif isinstance(event, (DocumentEndEvent, CollectionEndEvent)):
-                level -= 1
-            elif isinstance(event, StreamEndEvent):
-                level = -1
-            if level < 0:
-                return False
-        return (len(self.events) < count+1)
-
-    def increase_indent(self, flow=False, indentless=False):
-        self.indents.append(self.indent)
-        if self.indent is None:
-            if flow:
-                self.indent = self.best_indent
-            else:
-                self.indent = 0
-        elif not indentless:
-            self.indent += self.best_indent
-
-    # States.
-
-    # Stream handlers.
-
-    def expect_stream_start(self):
-        if isinstance(self.event, StreamStartEvent):
-            if self.event.encoding and not getattr(self.stream, 'encoding', None):
-                self.encoding = self.event.encoding
-            self.write_stream_start()
-            self.state = self.expect_first_document_start
-        else:
-            raise EmitterError("expected StreamStartEvent, but got %s"
-                    % self.event)
-
-    def expect_nothing(self):
-        raise EmitterError("expected nothing, but got %s" % self.event)
-
-    # Document handlers.
-
-    def expect_first_document_start(self):
-        return self.expect_document_start(first=True)
-
-    def expect_document_start(self, first=False):
-        if isinstance(self.event, DocumentStartEvent):
-            if (self.event.version or self.event.tags) and self.open_ended:
-                self.write_indicator(u'...', True)
-                self.write_indent()
-            if self.event.version:
-                version_text = self.prepare_version(self.event.version)
-                self.write_version_directive(version_text)
-            self.tag_prefixes = self.DEFAULT_TAG_PREFIXES.copy()
-            if self.event.tags:
-                handles = self.event.tags.keys()
-                handles.sort()
-                for handle in handles:
-                    prefix = self.event.tags[handle]
-                    self.tag_prefixes[prefix] = handle
-                    handle_text = self.prepare_tag_handle(handle)
-                    prefix_text = self.prepare_tag_prefix(prefix)
-                    self.write_tag_directive(handle_text, prefix_text)
-            implicit = (first and not self.event.explicit and not self.canonical
-                    and not self.event.version and not self.event.tags
-                    and not self.check_empty_document())
-            if not implicit:
-                self.write_indent()
-                self.write_indicator(u'---', True)
-                if self.canonical:
-                    self.write_indent()
-            self.state = self.expect_document_root
-        elif isinstance(self.event, StreamEndEvent):
-            if self.open_ended:
-                self.write_indicator(u'...', True)
-                self.write_indent()
-            self.write_stream_end()
-            self.state = self.expect_nothing
-        else:
-            raise EmitterError("expected DocumentStartEvent, but got %s"
-                    % self.event)
-
-    def expect_document_end(self):
-        if isinstance(self.event, DocumentEndEvent):
-            self.write_indent()
-            if self.event.explicit:
-                self.write_indicator(u'...', True)
-                self.write_indent()
-            self.flush_stream()
-            self.state = self.expect_document_start
-        else:
-            raise EmitterError("expected DocumentEndEvent, but got %s"
-                    % self.event)
-
-    def expect_document_root(self):
-        self.states.append(self.expect_document_end)
-        self.expect_node(root=True)
-
-    # Node handlers.
-
-    def expect_node(self, root=False, sequence=False, mapping=False,
-            simple_key=False):
-        self.root_context = root
-        self.sequence_context = sequence
-        self.mapping_context = mapping
-        self.simple_key_context = simple_key
-        if isinstance(self.event, AliasEvent):
-            self.expect_alias()
-        elif isinstance(self.event, (ScalarEvent, CollectionStartEvent)):
-            self.process_anchor(u'&')
-            self.process_tag()
-            if isinstance(self.event, ScalarEvent):
-                self.expect_scalar()
-            elif isinstance(self.event, SequenceStartEvent):
-                if self.flow_level or self.canonical or self.event.flow_style   \
-                        or self.check_empty_sequence():
-                    self.expect_flow_sequence()
-                else:
-                    self.expect_block_sequence()
-            elif isinstance(self.event, MappingStartEvent):
-                if self.flow_level or self.canonical or self.event.flow_style   \
-                        or self.check_empty_mapping():
-                    self.expect_flow_mapping()
-                else:
-                    self.expect_block_mapping()
-        else:
-            raise EmitterError("expected NodeEvent, but got %s" % self.event)
-
-    def expect_alias(self):
-        if self.event.anchor is None:
-            raise EmitterError("anchor is not specified for alias")
-        self.process_anchor(u'*')
-        self.state = self.states.pop()
-
-    def expect_scalar(self):
-        self.increase_indent(flow=True)
-        self.process_scalar()
-        self.indent = self.indents.pop()
-        self.state = self.states.pop()
-
-    # Flow sequence handlers.
-
-    def expect_flow_sequence(self):
-        self.write_indicator(u'[', True, whitespace=True)
-        self.flow_level += 1
-        self.increase_indent(flow=True)
-        self.state = self.expect_first_flow_sequence_item
-
-    def expect_first_flow_sequence_item(self):
-        if isinstance(self.event, SequenceEndEvent):
-            self.indent = self.indents.pop()
-            self.flow_level -= 1
-            self.write_indicator(u']', False)
-            self.state = self.states.pop()
-        else:
-            if self.canonical or self.column > self.best_width:
-                self.write_indent()
-            self.states.append(self.expect_flow_sequence_item)
-            self.expect_node(sequence=True)
-
-    def expect_flow_sequence_item(self):
-        if isinstance(self.event, SequenceEndEvent):
-            self.indent = self.indents.pop()
-            self.flow_level -= 1
-            if self.canonical:
-                self.write_indicator(u',', False)
-                self.write_indent()
-            self.write_indicator(u']', False)
-            self.state = self.states.pop()
-        else:
-            self.write_indicator(u',', False)
-            if self.canonical or self.column > self.best_width:
-                self.write_indent()
-            self.states.append(self.expect_flow_sequence_item)
-            self.expect_node(sequence=True)
-
-    # Flow mapping handlers.
-
-    def expect_flow_mapping(self):
-        self.write_indicator(u'{', True, whitespace=True)
-        self.flow_level += 1
-        self.increase_indent(flow=True)
-        self.state = self.expect_first_flow_mapping_key
-
-    def expect_first_flow_mapping_key(self):
-        if isinstance(self.event, MappingEndEvent):
-            self.indent = self.indents.pop()
-            self.flow_level -= 1
-            self.write_indicator(u'}', False)
-            self.state = self.states.pop()
-        else:
-            if self.canonical or self.column > self.best_width:
-                self.write_indent()
-            if not self.canonical and self.check_simple_key():
-                self.states.append(self.expect_flow_mapping_simple_value)
-                self.expect_node(mapping=True, simple_key=True)
-            else:
-                self.write_indicator(u'?', True)
-                self.states.append(self.expect_flow_mapping_value)
-                self.expect_node(mapping=True)
-
-    def expect_flow_mapping_key(self):
-        if isinstance(self.event, MappingEndEvent):
-            self.indent = self.indents.pop()
-            self.flow_level -= 1
-            if self.canonical:
-                self.write_indicator(u',', False)
-                self.write_indent()
-            self.write_indicator(u'}', False)
-            self.state = self.states.pop()
-        else:
-            self.write_indicator(u',', False)
-            if self.canonical or self.column > self.best_width:
-                self.write_indent()
-            if not self.canonical and self.check_simple_key():
-                self.states.append(self.expect_flow_mapping_simple_value)
-                self.expect_node(mapping=True, simple_key=True)
-            else:
-                self.write_indicator(u'?', True)
-                self.states.append(self.expect_flow_mapping_value)
-                self.expect_node(mapping=True)
-
-    def expect_flow_mapping_simple_value(self):
-        self.write_indicator(u':', False)
-        self.states.append(self.expect_flow_mapping_key)
-        self.expect_node(mapping=True)
-
-    def expect_flow_mapping_value(self):
-        if self.canonical or self.column > self.best_width:
-            self.write_indent()
-        self.write_indicator(u':', True)
-        self.states.append(self.expect_flow_mapping_key)
-        self.expect_node(mapping=True)
-
-    # Block sequence handlers.
-
-    def expect_block_sequence(self):
-        indentless = (self.mapping_context and not self.indention)
-        self.increase_indent(flow=False, indentless=indentless)
-        self.state = self.expect_first_block_sequence_item
-
-    def expect_first_block_sequence_item(self):
-        return self.expect_block_sequence_item(first=True)
-
-    def expect_block_sequence_item(self, first=False):
-        if not first and isinstance(self.event, SequenceEndEvent):
-            self.indent = self.indents.pop()
-            self.state = self.states.pop()
-        else:
-            self.write_indent()
-            self.write_indicator(u'-', True, indention=True)
-            self.states.append(self.expect_block_sequence_item)
-            self.expect_node(sequence=True)
-
-    # Block mapping handlers.
-
-    def expect_block_mapping(self):
-        self.increase_indent(flow=False)
-        self.state = self.expect_first_block_mapping_key
-
-    def expect_first_block_mapping_key(self):
-        return self.expect_block_mapping_key(first=True)
-
-    def expect_block_mapping_key(self, first=False):
-        if not first and isinstance(self.event, MappingEndEvent):
-            self.indent = self.indents.pop()
-            self.state = self.states.pop()
-        else:
-            self.write_indent()
-            if self.check_simple_key():
-                self.states.append(self.expect_block_mapping_simple_value)
-                self.expect_node(mapping=True, simple_key=True)
-            else:
-                self.write_indicator(u'?', True, indention=True)
-                self.states.append(self.expect_block_mapping_value)
-                self.expect_node(mapping=True)
-
-    def expect_block_mapping_simple_value(self):
-        self.write_indicator(u':', False)
-        self.states.append(self.expect_block_mapping_key)
-        self.expect_node(mapping=True)
-
-    def expect_block_mapping_value(self):
-        self.write_indent()
-        self.write_indicator(u':', True, indention=True)
-        self.states.append(self.expect_block_mapping_key)
-        self.expect_node(mapping=True)
-
-    # Checkers.
-
-    def check_empty_sequence(self):
-        return (isinstance(self.event, SequenceStartEvent) and self.events
-                and isinstance(self.events[0], SequenceEndEvent))
-
-    def check_empty_mapping(self):
-        return (isinstance(self.event, MappingStartEvent) and self.events
-                and isinstance(self.events[0], MappingEndEvent))
-
-    def check_empty_document(self):
-        if not isinstance(self.event, DocumentStartEvent) or not self.events:
-            return False
-        event = self.events[0]
-        return (isinstance(event, ScalarEvent) and event.anchor is None
-                and event.tag is None and event.implicit and event.value == u'')
-
-    def check_simple_key(self):
-        length = 0
-        if isinstance(self.event, NodeEvent) and self.event.anchor is not None:
-            if self.prepared_anchor is None:
-                self.prepared_anchor = self.prepare_anchor(self.event.anchor)
-            length += len(self.prepared_anchor)
-        if isinstance(self.event, (ScalarEvent, CollectionStartEvent))  \
-                and self.event.tag is not None:
-            if self.prepared_tag is None:
-                self.prepared_tag = self.prepare_tag(self.event.tag)
-            length += len(self.prepared_tag)
-        if isinstance(self.event, ScalarEvent):
-            if self.analysis is None:
-                self.analysis = self.analyze_scalar(self.event.value)
-            length += len(self.analysis.scalar)
-        return (length < 128 and (isinstance(self.event, AliasEvent)
-            or (isinstance(self.event, ScalarEvent)
-                    and not self.analysis.empty and not self.analysis.multiline)
-            or self.check_empty_sequence() or self.check_empty_mapping()))
-
-    # Anchor, Tag, and Scalar processors.
-
-    def process_anchor(self, indicator):
-        if self.event.anchor is None:
-            self.prepared_anchor = None
-            return
-        if self.prepared_anchor is None:
-            self.prepared_anchor = self.prepare_anchor(self.event.anchor)
-        if self.prepared_anchor:
-            self.write_indicator(indicator+self.prepared_anchor, True)
-        self.prepared_anchor = None
-
-    def process_tag(self):
-        tag = self.event.tag
-        if isinstance(self.event, ScalarEvent):
-            if self.style is None:
-                self.style = self.choose_scalar_style()
-            if ((not self.canonical or tag is None) and
-                ((self.style == '' and self.event.implicit[0])
-                        or (self.style != '' and self.event.implicit[1]))):
-                self.prepared_tag = None
-                return
-            if self.event.implicit[0] and tag is None:
-                tag = u'!'
-                self.prepared_tag = None
-        else:
-            if (not self.canonical or tag is None) and self.event.implicit:
-                self.prepared_tag = None
-                return
-        if tag is None:
-            raise EmitterError("tag is not specified")
-        if self.prepared_tag is None:
-            self.prepared_tag = self.prepare_tag(tag)
-        if self.prepared_tag:
-            self.write_indicator(self.prepared_tag, True)
-        self.prepared_tag = None
-
-    def choose_scalar_style(self):
-        if self.analysis is None:
-            self.analysis = self.analyze_scalar(self.event.value)
-        if self.event.style == '"' or self.canonical:
-            return '"'
-        if not self.event.style and self.event.implicit[0]:
-            if (not (self.simple_key_context and
-                    (self.analysis.empty or self.analysis.multiline))
-                and (self.flow_level and self.analysis.allow_flow_plain
-                    or (not self.flow_level and self.analysis.allow_block_plain))):
-                return ''
-        if self.event.style and self.event.style in '|>':
-            if (not self.flow_level and not self.simple_key_context
-                    and self.analysis.allow_block):
-                return self.event.style
-        if not self.event.style or self.event.style == '\'':
-            if (self.analysis.allow_single_quoted and
-                    not (self.simple_key_context and self.analysis.multiline)):
-                return '\''
-        return '"'
-
-    def process_scalar(self):
-        if self.analysis is None:
-            self.analysis = self.analyze_scalar(self.event.value)
-        if self.style is None:
-            self.style = self.choose_scalar_style()
-        split = (not self.simple_key_context)
-        #if self.analysis.multiline and split    \
-        #        and (not self.style or self.style in '\'\"'):
-        #    self.write_indent()
-        if self.style == '"':
-            self.write_double_quoted(self.analysis.scalar, split)
-        elif self.style == '\'':
-            self.write_single_quoted(self.analysis.scalar, split)
-        elif self.style == '>':
-            self.write_folded(self.analysis.scalar)
-        elif self.style == '|':
-            self.write_literal(self.analysis.scalar)
-        else:
-            self.write_plain(self.analysis.scalar, split)
-        self.analysis = None
-        self.style = None
-
-    # Analyzers.
-
-    def prepare_version(self, version):
-        major, minor = version
-        if major != 1:
-            raise EmitterError("unsupported YAML version: %d.%d" % (major, minor))
-        return u'%d.%d' % (major, minor)
-
-    def prepare_tag_handle(self, handle):
-        if not handle:
-            raise EmitterError("tag handle must not be empty")
-        if handle[0] != u'!' or handle[-1] != u'!':
-            raise EmitterError("tag handle must start and end with '!': %r"
-                    % (handle.encode('utf-8')))
-        for ch in handle[1:-1]:
-            if not (u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'  \
-                    or ch in u'-_'):
-                raise EmitterError("invalid character %r in the tag handle: %r"
-                        % (ch.encode('utf-8'), handle.encode('utf-8')))
-        return handle
-
-    def prepare_tag_prefix(self, prefix):
-        if not prefix:
-            raise EmitterError("tag prefix must not be empty")
-        chunks = []
-        start = end = 0
-        if prefix[0] == u'!':
-            end = 1
-        while end < len(prefix):
-            ch = prefix[end]
-            if u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'   \
-                    or ch in u'-;/?!:@&=+$,_.~*\'()[]':
-                end += 1
-            else:
-                if start < end:
-                    chunks.append(prefix[start:end])
-                start = end = end+1
-                data = ch.encode('utf-8')
-                for ch in data:
-                    chunks.append(u'%%%02X' % ord(ch))
-        if start < end:
-            chunks.append(prefix[start:end])
-        return u''.join(chunks)
-
-    def prepare_tag(self, tag):
-        if not tag:
-            raise EmitterError("tag must not be empty")
-        if tag == u'!':
-            return tag
-        handle = None
-        suffix = tag
-        prefixes = self.tag_prefixes.keys()
-        prefixes.sort()
-        for prefix in prefixes:
-            if tag.startswith(prefix)   \
-                    and (prefix == u'!' or len(prefix) < len(tag)):
-                handle = self.tag_prefixes[prefix]
-                suffix = tag[len(prefix):]
-        chunks = []
-        start = end = 0
-        while end < len(suffix):
-            ch = suffix[end]
-            if u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'   \
-                    or ch in u'-;/?:@&=+$,_.~*\'()[]'   \
-                    or (ch == u'!' and handle != u'!'):
-                end += 1
-            else:
-                if start < end:
-                    chunks.append(suffix[start:end])
-                start = end = end+1
-                data = ch.encode('utf-8')
-                for ch in data:
-                    chunks.append(u'%%%02X' % ord(ch))
-        if start < end:
-            chunks.append(suffix[start:end])
-        suffix_text = u''.join(chunks)
-        if handle:
-            return u'%s%s' % (handle, suffix_text)
-        else:
-            return u'!<%s>' % suffix_text
-
-    def prepare_anchor(self, anchor):
-        if not anchor:
-            raise EmitterError("anchor must not be empty")
-        for ch in anchor:
-            if not (u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'  \
-                    or ch in u'-_'):
-                raise EmitterError("invalid character %r in the anchor: %r"
-                        % (ch.encode('utf-8'), anchor.encode('utf-8')))
-        return anchor
-
-    def analyze_scalar(self, scalar):
-
-        # Empty scalar is a special case.
-        if not scalar:
-            return ScalarAnalysis(scalar=scalar, empty=True, multiline=False,
-                    allow_flow_plain=False, allow_block_plain=True,
-                    allow_single_quoted=True, allow_double_quoted=True,
-                    allow_block=False)
-
-        # Indicators and special characters.
-        block_indicators = False
-        flow_indicators = False
-        line_breaks = False
-        special_characters = False
-
-        # Important whitespace combinations.
-        leading_space = False
-        leading_break = False
-        trailing_space = False
-        trailing_break = False
-        break_space = False
-        space_break = False
-
-        # Check document indicators.
-        if scalar.startswith(u'---') or scalar.startswith(u'...'):
-            block_indicators = True
-            flow_indicators = True
-
-        # First character or preceded by a whitespace.
-        preceeded_by_whitespace = True
-
-        # Last character or followed by a whitespace.
-        followed_by_whitespace = (len(scalar) == 1 or
-                scalar[1] in u'\0 \t\r\n\x85\u2028\u2029')
-
-        # The previous character is a space.
-        previous_space = False
-
-        # The previous character is a break.
-        previous_break = False
-
-        index = 0
-        while index < len(scalar):
-            ch = scalar[index]
-
-            # Check for indicators.
-            if index == 0:
-                # Leading indicators are special characters.
-                if ch in u'#,[]{}&*!|>\'\"%@`': 
-                    flow_indicators = True
-                    block_indicators = True
-                if ch in u'?:':
-                    flow_indicators = True
-                    if followed_by_whitespace:
-                        block_indicators = True
-                if ch == u'-' and followed_by_whitespace:
-                    flow_indicators = True
-                    block_indicators = True
-            else:
-                # Some indicators cannot appear within a scalar as well.
-                if ch in u',?[]{}':
-                    flow_indicators = True
-                if ch == u':':
-                    flow_indicators = True
-                    if followed_by_whitespace:
-                        block_indicators = True
-                if ch == u'#' and preceeded_by_whitespace:
-                    flow_indicators = True
-                    block_indicators = True
-
-            # Check for line breaks, special, and unicode characters.
-            if ch in u'\n\x85\u2028\u2029':
-                line_breaks = True
-            if not (ch == u'\n' or u'\x20' <= ch <= u'\x7E'):
-                if (ch == u'\x85' or u'\xA0' <= ch <= u'\uD7FF'
-                        or u'\uE000' <= ch <= u'\uFFFD') and ch != u'\uFEFF':
-                    unicode_characters = True
-                    if not self.allow_unicode:
-                        special_characters = True
-                else:
-                    special_characters = True
-
-            # Detect important whitespace combinations.
-            if ch == u' ':
-                if index == 0:
-                    leading_space = True
-                if index == len(scalar)-1:
-                    trailing_space = True
-                if previous_break:
-                    break_space = True
-                previous_space = True
-                previous_break = False
-            elif ch in u'\n\x85\u2028\u2029':
-                if index == 0:
-                    leading_break = True
-                if index == len(scalar)-1:
-                    trailing_break = True
-                if previous_space:
-                    space_break = True
-                previous_space = False
-                previous_break = True
-            else:
-                previous_space = False
-                previous_break = False
-
-            # Prepare for the next character.
-            index += 1
-            preceeded_by_whitespace = (ch in u'\0 \t\r\n\x85\u2028\u2029')
-            followed_by_whitespace = (index+1 >= len(scalar) or
-                    scalar[index+1] in u'\0 \t\r\n\x85\u2028\u2029')
-
-        # Let's decide what styles are allowed.
-        allow_flow_plain = True
-        allow_block_plain = True
-        allow_single_quoted = True
-        allow_double_quoted = True
-        allow_block = True
-
-        # Leading and trailing whitespaces are bad for plain scalars.
-        if (leading_space or leading_break
-                or trailing_space or trailing_break):
-            allow_flow_plain = allow_block_plain = False
-
-        # We do not permit trailing spaces for block scalars.
-        if trailing_space:
-            allow_block = False
-
-        # Spaces at the beginning of a new line are only acceptable for block
-        # scalars.
-        if break_space:
-            allow_flow_plain = allow_block_plain = allow_single_quoted = False
-
-        # Spaces followed by breaks, as well as special character are only
-        # allowed for double quoted scalars.
-        if space_break or special_characters:
-            allow_flow_plain = allow_block_plain =  \
-            allow_single_quoted = allow_block = False
-
-        # Although the plain scalar writer supports breaks, we never emit
-        # multiline plain scalars.
-        if line_breaks:
-            allow_flow_plain = allow_block_plain = False
-
-        # Flow indicators are forbidden for flow plain scalars.
-        if flow_indicators:
-            allow_flow_plain = False
-
-        # Block indicators are forbidden for block plain scalars.
-        if block_indicators:
-            allow_block_plain = False
-
-        return ScalarAnalysis(scalar=scalar,
-                empty=False, multiline=line_breaks,
-                allow_flow_plain=allow_flow_plain,
-                allow_block_plain=allow_block_plain,
-                allow_single_quoted=allow_single_quoted,
-                allow_double_quoted=allow_double_quoted,
-                allow_block=allow_block)
-
-    # Writers.
-
-    def flush_stream(self):
-        if hasattr(self.stream, 'flush'):
-            self.stream.flush()
-
-    def write_stream_start(self):
-        # Write BOM if needed.
-        if self.encoding and self.encoding.startswith('utf-16'):
-            self.stream.write(u'\uFEFF'.encode(self.encoding))
-
-    def write_stream_end(self):
-        self.flush_stream()
-
-    def write_indicator(self, indicator, need_whitespace,
-            whitespace=False, indention=False):
-        if self.whitespace or not need_whitespace:
-            data = indicator
-        else:
-            data = u' '+indicator
-        self.whitespace = whitespace
-        self.indention = self.indention and indention
-        self.column += len(data)
-        self.open_ended = False
-        if self.encoding:
-            data = data.encode(self.encoding)
-        self.stream.write(data)
-
-    def write_indent(self):
-        indent = self.indent or 0
-        if not self.indention or self.column > indent   \
-                or (self.column == indent and not self.whitespace):
-            self.write_line_break()
-        if self.column < indent:
-            self.whitespace = True
-            data = u' '*(indent-self.column)
-            self.column = indent
-            if self.encoding:
-                data = data.encode(self.encoding)
-            self.stream.write(data)
-
-    def write_line_break(self, data=None):
-        if data is None:
-            data = self.best_line_break
-        self.whitespace = True
-        self.indention = True
-        self.line += 1
-        self.column = 0
-        if self.encoding:
-            data = data.encode(self.encoding)
-        self.stream.write(data)
-
-    def write_version_directive(self, version_text):
-        data = u'%%YAML %s' % version_text
-        if self.encoding:
-            data = data.encode(self.encoding)
-        self.stream.write(data)
-        self.write_line_break()
-
-    def write_tag_directive(self, handle_text, prefix_text):
-        data = u'%%TAG %s %s' % (handle_text, prefix_text)
-        if self.encoding:
-            data = data.encode(self.encoding)
-        self.stream.write(data)
-        self.write_line_break()
-
-    # Scalar streams.
-
-    def write_single_quoted(self, text, split=True):
-        self.write_indicator(u'\'', True)
-        spaces = False
-        breaks = False
-        start = end = 0
-        while end <= len(text):
-            ch = None
-            if end < len(text):
-                ch = text[end]
-            if spaces:
-                if ch is None or ch != u' ':
-                    if start+1 == end and self.column > self.best_width and split   \
-                            and start != 0 and end != len(text):
-                        self.write_indent()
-                    else:
-                        data = text[start:end]
-                        self.column += len(data)
-                        if self.encoding:
-                            data = data.encode(self.encoding)
-                        self.stream.write(data)
-                    start = end
-            elif breaks:
-                if ch is None or ch not in u'\n\x85\u2028\u2029':
-                    if text[start] == u'\n':
-                        self.write_line_break()
-                    for br in text[start:end]:
-                        if br == u'\n':
-                            self.write_line_break()
-                        else:
-                            self.write_line_break(br)
-                    self.write_indent()
-                    start = end
-            else:
-                if ch is None or ch in u' \n\x85\u2028\u2029' or ch == u'\'':
-                    if start < end:
-                        data = text[start:end]
-                        self.column += len(data)
-                        if self.encoding:
-                            data = data.encode(self.encoding)
-                        self.stream.write(data)
-                        start = end
-            if ch == u'\'':
-                data = u'\'\''
-                self.column += 2
-                if self.encoding:
-                    data = data.encode(self.encoding)
-                self.stream.write(data)
-                start = end + 1
-            if ch is not None:
-                spaces = (ch == u' ')
-                breaks = (ch in u'\n\x85\u2028\u2029')
-            end += 1
-        self.write_indicator(u'\'', False)
-
-    ESCAPE_REPLACEMENTS = {
-        u'\0':      u'0',
-        u'\x07':    u'a',
-        u'\x08':    u'b',
-        u'\x09':    u't',
-        u'\x0A':    u'n',
-        u'\x0B':    u'v',
-        u'\x0C':    u'f',
-        u'\x0D':    u'r',
-        u'\x1B':    u'e',
-        u'\"':      u'\"',
-        u'\\':      u'\\',
-        u'\x85':    u'N',
-        u'\xA0':    u'_',
-        u'\u2028':  u'L',
-        u'\u2029':  u'P',
-    }
-
-    def write_double_quoted(self, text, split=True):
-        self.write_indicator(u'"', True)
-        start = end = 0
-        while end <= len(text):
-            ch = None
-            if end < len(text):
-                ch = text[end]
-            if ch is None or ch in u'"\\\x85\u2028\u2029\uFEFF' \
-                    or not (u'\x20' <= ch <= u'\x7E'
-                        or (self.allow_unicode
-                            and (u'\xA0' <= ch <= u'\uD7FF'
-                                or u'\uE000' <= ch <= u'\uFFFD'))):
-                if start < end:
-                    data = text[start:end]
-                    self.column += len(data)
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-                    start = end
-                if ch is not None:
-                    if ch in self.ESCAPE_REPLACEMENTS:
-                        data = u'\\'+self.ESCAPE_REPLACEMENTS[ch]
-                    elif ch <= u'\xFF':
-                        data = u'\\x%02X' % ord(ch)
-                    elif ch <= u'\uFFFF':
-                        data = u'\\u%04X' % ord(ch)
-                    else:
-                        data = u'\\U%08X' % ord(ch)
-                    self.column += len(data)
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-                    start = end+1
-            if 0 < end < len(text)-1 and (ch == u' ' or start >= end)   \
-                    and self.column+(end-start) > self.best_width and split:
-                data = text[start:end]+u'\\'
-                if start < end:
-                    start = end
-                self.column += len(data)
-                if self.encoding:
-                    data = data.encode(self.encoding)
-                self.stream.write(data)
-                self.write_indent()
-                self.whitespace = False
-                self.indention = False
-                if text[start] == u' ':
-                    data = u'\\'
-                    self.column += len(data)
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-            end += 1
-        self.write_indicator(u'"', False)
-
-    def determine_block_hints(self, text):
-        hints = u''
-        if text:
-            if text[0] in u' \n\x85\u2028\u2029':
-                hints += unicode(self.best_indent)
-            if text[-1] not in u'\n\x85\u2028\u2029':
-                hints += u'-'
-            elif len(text) == 1 or text[-2] in u'\n\x85\u2028\u2029':
-                hints += u'+'
-        return hints
-
-    def write_folded(self, text):
-        hints = self.determine_block_hints(text)
-        self.write_indicator(u'>'+hints, True)
-        if hints[-1:] == u'+':
-            self.open_ended = True
-        self.write_line_break()
-        leading_space = True
-        spaces = False
-        breaks = True
-        start = end = 0
-        while end <= len(text):
-            ch = None
-            if end < len(text):
-                ch = text[end]
-            if breaks:
-                if ch is None or ch not in u'\n\x85\u2028\u2029':
-                    if not leading_space and ch is not None and ch != u' '  \
-                            and text[start] == u'\n':
-                        self.write_line_break()
-                    leading_space = (ch == u' ')
-                    for br in text[start:end]:
-                        if br == u'\n':
-                            self.write_line_break()
-                        else:
-                            self.write_line_break(br)
-                    if ch is not None:
-                        self.write_indent()
-                    start = end
-            elif spaces:
-                if ch != u' ':
-                    if start+1 == end and self.column > self.best_width:
-                        self.write_indent()
-                    else:
-                        data = text[start:end]
-                        self.column += len(data)
-                        if self.encoding:
-                            data = data.encode(self.encoding)
-                        self.stream.write(data)
-                    start = end
-            else:
-                if ch is None or ch in u' \n\x85\u2028\u2029':
-                    data = text[start:end]
-                    self.column += len(data)
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-                    if ch is None:
-                        self.write_line_break()
-                    start = end
-            if ch is not None:
-                breaks = (ch in u'\n\x85\u2028\u2029')
-                spaces = (ch == u' ')
-            end += 1
-
-    def write_literal(self, text):
-        hints = self.determine_block_hints(text)
-        self.write_indicator(u'|'+hints, True)
-        if hints[-1:] == u'+':
-            self.open_ended = True
-        self.write_line_break()
-        breaks = True
-        start = end = 0
-        while end <= len(text):
-            ch = None
-            if end < len(text):
-                ch = text[end]
-            if breaks:
-                if ch is None or ch not in u'\n\x85\u2028\u2029':
-                    for br in text[start:end]:
-                        if br == u'\n':
-                            self.write_line_break()
-                        else:
-                            self.write_line_break(br)
-                    if ch is not None:
-                        self.write_indent()
-                    start = end
-            else:
-                if ch is None or ch in u'\n\x85\u2028\u2029':
-                    data = text[start:end]
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-                    if ch is None:
-                        self.write_line_break()
-                    start = end
-            if ch is not None:
-                breaks = (ch in u'\n\x85\u2028\u2029')
-            end += 1
-
-    def write_plain(self, text, split=True):
-        if self.root_context:
-            self.open_ended = True
-        if not text:
-            return
-        if not self.whitespace:
-            data = u' '
-            self.column += len(data)
-            if self.encoding:
-                data = data.encode(self.encoding)
-            self.stream.write(data)
-        self.whitespace = False
-        self.indention = False
-        spaces = False
-        breaks = False
-        start = end = 0
-        while end <= len(text):
-            ch = None
-            if end < len(text):
-                ch = text[end]
-            if spaces:
-                if ch != u' ':
-                    if start+1 == end and self.column > self.best_width and split:
-                        self.write_indent()
-                        self.whitespace = False
-                        self.indention = False
-                    else:
-                        data = text[start:end]
-                        self.column += len(data)
-                        if self.encoding:
-                            data = data.encode(self.encoding)
-                        self.stream.write(data)
-                    start = end
-            elif breaks:
-                if ch not in u'\n\x85\u2028\u2029':
-                    if text[start] == u'\n':
-                        self.write_line_break()
-                    for br in text[start:end]:
-                        if br == u'\n':
-                            self.write_line_break()
-                        else:
-                            self.write_line_break(br)
-                    self.write_indent()
-                    self.whitespace = False
-                    self.indention = False
-                    start = end
-            else:
-                if ch is None or ch in u' \n\x85\u2028\u2029':
-                    data = text[start:end]
-                    self.column += len(data)
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-                    start = end
-            if ch is not None:
-                spaces = (ch == u' ')
-                breaks = (ch in u'\n\x85\u2028\u2029')
-            end += 1
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/error.py b/collectors/python.d.plugin/python_modules/pyyaml2/error.py
deleted file mode 100644
index 5466be721..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/error.py
+++ /dev/null
@@ -1,76 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['Mark', 'YAMLError', 'MarkedYAMLError']
-
-class Mark(object):
-
-    def __init__(self, name, index, line, column, buffer, pointer):
-        self.name = name
-        self.index = index
-        self.line = line
-        self.column = column
-        self.buffer = buffer
-        self.pointer = pointer
-
-    def get_snippet(self, indent=4, max_length=75):
-        if self.buffer is None:
-            return None
-        head = ''
-        start = self.pointer
-        while start > 0 and self.buffer[start-1] not in u'\0\r\n\x85\u2028\u2029':
-            start -= 1
-            if self.pointer-start > max_length/2-1:
-                head = ' ... '
-                start += 5
-                break
-        tail = ''
-        end = self.pointer
-        while end < len(self.buffer) and self.buffer[end] not in u'\0\r\n\x85\u2028\u2029':
-            end += 1
-            if end-self.pointer > max_length/2-1:
-                tail = ' ... '
-                end -= 5
-                break
-        snippet = self.buffer[start:end].encode('utf-8')
-        return ' '*indent + head + snippet + tail + '\n'  \
-                + ' '*(indent+self.pointer-start+len(head)) + '^'
-
-    def __str__(self):
-        snippet = self.get_snippet()
-        where = "  in \"%s\", line %d, column %d"   \
-                % (self.name, self.line+1, self.column+1)
-        if snippet is not None:
-            where += ":\n"+snippet
-        return where
-
-class YAMLError(Exception):
-    pass
-
-class MarkedYAMLError(YAMLError):
-
-    def __init__(self, context=None, context_mark=None,
-            problem=None, problem_mark=None, note=None):
-        self.context = context
-        self.context_mark = context_mark
-        self.problem = problem
-        self.problem_mark = problem_mark
-        self.note = note
-
-    def __str__(self):
-        lines = []
-        if self.context is not None:
-            lines.append(self.context)
-        if self.context_mark is not None  \
-            and (self.problem is None or self.problem_mark is None
-                    or self.context_mark.name != self.problem_mark.name
-                    or self.context_mark.line != self.problem_mark.line
-                    or self.context_mark.column != self.problem_mark.column):
-            lines.append(str(self.context_mark))
-        if self.problem is not None:
-            lines.append(self.problem)
-        if self.problem_mark is not None:
-            lines.append(str(self.problem_mark))
-        if self.note is not None:
-            lines.append(self.note)
-        return '\n'.join(lines)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/events.py b/collectors/python.d.plugin/python_modules/pyyaml2/events.py
deleted file mode 100644
index 283452add..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/events.py
+++ /dev/null
@@ -1,87 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-# Abstract classes.
-
-class Event(object):
-    def __init__(self, start_mark=None, end_mark=None):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-    def __repr__(self):
-        attributes = [key for key in ['anchor', 'tag', 'implicit', 'value']
-                if hasattr(self, key)]
-        arguments = ', '.join(['%s=%r' % (key, getattr(self, key))
-                for key in attributes])
-        return '%s(%s)' % (self.__class__.__name__, arguments)
-
-class NodeEvent(Event):
-    def __init__(self, anchor, start_mark=None, end_mark=None):
-        self.anchor = anchor
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-
-class CollectionStartEvent(NodeEvent):
-    def __init__(self, anchor, tag, implicit, start_mark=None, end_mark=None,
-            flow_style=None):
-        self.anchor = anchor
-        self.tag = tag
-        self.implicit = implicit
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.flow_style = flow_style
-
-class CollectionEndEvent(Event):
-    pass
-
-# Implementations.
-
-class StreamStartEvent(Event):
-    def __init__(self, start_mark=None, end_mark=None, encoding=None):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.encoding = encoding
-
-class StreamEndEvent(Event):
-    pass
-
-class DocumentStartEvent(Event):
-    def __init__(self, start_mark=None, end_mark=None,
-            explicit=None, version=None, tags=None):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.explicit = explicit
-        self.version = version
-        self.tags = tags
-
-class DocumentEndEvent(Event):
-    def __init__(self, start_mark=None, end_mark=None,
-            explicit=None):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.explicit = explicit
-
-class AliasEvent(NodeEvent):
-    pass
-
-class ScalarEvent(NodeEvent):
-    def __init__(self, anchor, tag, implicit, value,
-            start_mark=None, end_mark=None, style=None):
-        self.anchor = anchor
-        self.tag = tag
-        self.implicit = implicit
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.style = style
-
-class SequenceStartEvent(CollectionStartEvent):
-    pass
-
-class SequenceEndEvent(CollectionEndEvent):
-    pass
-
-class MappingStartEvent(CollectionStartEvent):
-    pass
-
-class MappingEndEvent(CollectionEndEvent):
-    pass
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/loader.py b/collectors/python.d.plugin/python_modules/pyyaml2/loader.py
deleted file mode 100644
index 1c195531f..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/loader.py
+++ /dev/null
@@ -1,41 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['BaseLoader', 'SafeLoader', 'Loader']
-
-from reader import *
-from scanner import *
-from parser import *
-from composer import *
-from constructor import *
-from resolver import *
-
-class BaseLoader(Reader, Scanner, Parser, Composer, BaseConstructor, BaseResolver):
-
-    def __init__(self, stream):
-        Reader.__init__(self, stream)
-        Scanner.__init__(self)
-        Parser.__init__(self)
-        Composer.__init__(self)
-        BaseConstructor.__init__(self)
-        BaseResolver.__init__(self)
-
-class SafeLoader(Reader, Scanner, Parser, Composer, SafeConstructor, Resolver):
-
-    def __init__(self, stream):
-        Reader.__init__(self, stream)
-        Scanner.__init__(self)
-        Parser.__init__(self)
-        Composer.__init__(self)
-        SafeConstructor.__init__(self)
-        Resolver.__init__(self)
-
-class Loader(Reader, Scanner, Parser, Composer, Constructor, Resolver):
-
-    def __init__(self, stream):
-        Reader.__init__(self, stream)
-        Scanner.__init__(self)
-        Parser.__init__(self)
-        Composer.__init__(self)
-        Constructor.__init__(self)
-        Resolver.__init__(self)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/nodes.py b/collectors/python.d.plugin/python_modules/pyyaml2/nodes.py
deleted file mode 100644
index ed2a1b43e..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/nodes.py
+++ /dev/null
@@ -1,50 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-class Node(object):
-    def __init__(self, tag, value, start_mark, end_mark):
-        self.tag = tag
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-    def __repr__(self):
-        value = self.value
-        #if isinstance(value, list):
-        #    if len(value) == 0:
-        #        value = '<empty>'
-        #    elif len(value) == 1:
-        #        value = '<1 item>'
-        #    else:
-        #        value = '<%d items>' % len(value)
-        #else:
-        #    if len(value) > 75:
-        #        value = repr(value[:70]+u' ... ')
-        #    else:
-        #        value = repr(value)
-        value = repr(value)
-        return '%s(tag=%r, value=%s)' % (self.__class__.__name__, self.tag, value)
-
-class ScalarNode(Node):
-    id = 'scalar'
-    def __init__(self, tag, value,
-            start_mark=None, end_mark=None, style=None):
-        self.tag = tag
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.style = style
-
-class CollectionNode(Node):
-    def __init__(self, tag, value,
-            start_mark=None, end_mark=None, flow_style=None):
-        self.tag = tag
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.flow_style = flow_style
-
-class SequenceNode(CollectionNode):
-    id = 'sequence'
-
-class MappingNode(CollectionNode):
-    id = 'mapping'
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/parser.py b/collectors/python.d.plugin/python_modules/pyyaml2/parser.py
deleted file mode 100644
index 97ba08337..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/parser.py
+++ /dev/null
@@ -1,590 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-# The following YAML grammar is LL(1) and is parsed by a recursive descent
-# parser.
-#
-# stream            ::= STREAM-START implicit_document? explicit_document* STREAM-END
-# implicit_document ::= block_node DOCUMENT-END*
-# explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-# block_node_or_indentless_sequence ::=
-#                       ALIAS
-#                       | properties (block_content | indentless_block_sequence)?
-#                       | block_content
-#                       | indentless_block_sequence
-# block_node        ::= ALIAS
-#                       | properties block_content?
-#                       | block_content
-# flow_node         ::= ALIAS
-#                       | properties flow_content?
-#                       | flow_content
-# properties        ::= TAG ANCHOR? | ANCHOR TAG?
-# block_content     ::= block_collection | flow_collection | SCALAR
-# flow_content      ::= flow_collection | SCALAR
-# block_collection  ::= block_sequence | block_mapping
-# flow_collection   ::= flow_sequence | flow_mapping
-# block_sequence    ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
-# indentless_sequence   ::= (BLOCK-ENTRY block_node?)+
-# block_mapping     ::= BLOCK-MAPPING_START
-#                       ((KEY block_node_or_indentless_sequence?)?
-#                       (VALUE block_node_or_indentless_sequence?)?)*
-#                       BLOCK-END
-# flow_sequence     ::= FLOW-SEQUENCE-START
-#                       (flow_sequence_entry FLOW-ENTRY)*
-#                       flow_sequence_entry?
-#                       FLOW-SEQUENCE-END
-# flow_sequence_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-# flow_mapping      ::= FLOW-MAPPING-START
-#                       (flow_mapping_entry FLOW-ENTRY)*
-#                       flow_mapping_entry?
-#                       FLOW-MAPPING-END
-# flow_mapping_entry    ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-#
-# FIRST sets:
-#
-# stream: { STREAM-START }
-# explicit_document: { DIRECTIVE DOCUMENT-START }
-# implicit_document: FIRST(block_node)
-# block_node: { ALIAS TAG ANCHOR SCALAR BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START }
-# flow_node: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START }
-# block_content: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR }
-# flow_content: { FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR }
-# block_collection: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START }
-# flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START }
-# block_sequence: { BLOCK-SEQUENCE-START }
-# block_mapping: { BLOCK-MAPPING-START }
-# block_node_or_indentless_sequence: { ALIAS ANCHOR TAG SCALAR BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START BLOCK-ENTRY }
-# indentless_sequence: { ENTRY }
-# flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START }
-# flow_sequence: { FLOW-SEQUENCE-START }
-# flow_mapping: { FLOW-MAPPING-START }
-# flow_sequence_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START KEY }
-# flow_mapping_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START KEY }
-
-__all__ = ['Parser', 'ParserError']
-
-from error import MarkedYAMLError
-from tokens import *
-from events import *
-from scanner import *
-
-class ParserError(MarkedYAMLError):
-    pass
-
-class Parser(object):
-    # Since writing a recursive-descendant parser is a straightforward task, we
-    # do not give many comments here.
-
-    DEFAULT_TAGS = {
-        u'!':   u'!',
-        u'!!':  u'tag:yaml.org,2002:',
-    }
-
-    def __init__(self):
-        self.current_event = None
-        self.yaml_version = None
-        self.tag_handles = {}
-        self.states = []
-        self.marks = []
-        self.state = self.parse_stream_start
-
-    def dispose(self):
-        # Reset the state attributes (to clear self-references)
-        self.states = []
-        self.state = None
-
-    def check_event(self, *choices):
-        # Check the type of the next event.
-        if self.current_event is None:
-            if self.state:
-                self.current_event = self.state()
-        if self.current_event is not None:
-            if not choices:
-                return True
-            for choice in choices:
-                if isinstance(self.current_event, choice):
-                    return True
-        return False
-
-    def peek_event(self):
-        # Get the next event.
-        if self.current_event is None:
-            if self.state:
-                self.current_event = self.state()
-        return self.current_event
-
-    def get_event(self):
-        # Get the next event and proceed further.
-        if self.current_event is None:
-            if self.state:
-                self.current_event = self.state()
-        value = self.current_event
-        self.current_event = None
-        return value
-
-    # stream    ::= STREAM-START implicit_document? explicit_document* STREAM-END
-    # implicit_document ::= block_node DOCUMENT-END*
-    # explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-
-    def parse_stream_start(self):
-
-        # Parse the stream start.
-        token = self.get_token()
-        event = StreamStartEvent(token.start_mark, token.end_mark,
-                encoding=token.encoding)
-
-        # Prepare the next state.
-        self.state = self.parse_implicit_document_start
-
-        return event
-
-    def parse_implicit_document_start(self):
-
-        # Parse an implicit document.
-        if not self.check_token(DirectiveToken, DocumentStartToken,
-                StreamEndToken):
-            self.tag_handles = self.DEFAULT_TAGS
-            token = self.peek_token()
-            start_mark = end_mark = token.start_mark
-            event = DocumentStartEvent(start_mark, end_mark,
-                    explicit=False)
-
-            # Prepare the next state.
-            self.states.append(self.parse_document_end)
-            self.state = self.parse_block_node
-
-            return event
-
-        else:
-            return self.parse_document_start()
-
-    def parse_document_start(self):
-
-        # Parse any extra document end indicators.
-        while self.check_token(DocumentEndToken):
-            self.get_token()
-
-        # Parse an explicit document.
-        if not self.check_token(StreamEndToken):
-            token = self.peek_token()
-            start_mark = token.start_mark
-            version, tags = self.process_directives()
-            if not self.check_token(DocumentStartToken):
-                raise ParserError(None, None,
-                        "expected '<document start>', but found %r"
-                        % self.peek_token().id,
-                        self.peek_token().start_mark)
-            token = self.get_token()
-            end_mark = token.end_mark
-            event = DocumentStartEvent(start_mark, end_mark,
-                    explicit=True, version=version, tags=tags)
-            self.states.append(self.parse_document_end)
-            self.state = self.parse_document_content
-        else:
-            # Parse the end of the stream.
-            token = self.get_token()
-            event = StreamEndEvent(token.start_mark, token.end_mark)
-            assert not self.states
-            assert not self.marks
-            self.state = None
-        return event
-
-    def parse_document_end(self):
-
-        # Parse the document end.
-        token = self.peek_token()
-        start_mark = end_mark = token.start_mark
-        explicit = False
-        if self.check_token(DocumentEndToken):
-            token = self.get_token()
-            end_mark = token.end_mark
-            explicit = True
-        event = DocumentEndEvent(start_mark, end_mark,
-                explicit=explicit)
-
-        # Prepare the next state.
-        self.state = self.parse_document_start
-
-        return event
-
-    def parse_document_content(self):
-        if self.check_token(DirectiveToken,
-                DocumentStartToken, DocumentEndToken, StreamEndToken):
-            event = self.process_empty_scalar(self.peek_token().start_mark)
-            self.state = self.states.pop()
-            return event
-        else:
-            return self.parse_block_node()
-
-    def process_directives(self):
-        self.yaml_version = None
-        self.tag_handles = {}
-        while self.check_token(DirectiveToken):
-            token = self.get_token()
-            if token.name == u'YAML':
-                if self.yaml_version is not None:
-                    raise ParserError(None, None,
-                            "found duplicate YAML directive", token.start_mark)
-                major, minor = token.value
-                if major != 1:
-                    raise ParserError(None, None,
-                            "found incompatible YAML document (version 1.* is required)",
-                            token.start_mark)
-                self.yaml_version = token.value
-            elif token.name == u'TAG':
-                handle, prefix = token.value
-                if handle in self.tag_handles:
-                    raise ParserError(None, None,
-                            "duplicate tag handle %r" % handle.encode('utf-8'),
-                            token.start_mark)
-                self.tag_handles[handle] = prefix
-        if self.tag_handles:
-            value = self.yaml_version, self.tag_handles.copy()
-        else:
-            value = self.yaml_version, None
-        for key in self.DEFAULT_TAGS:
-            if key not in self.tag_handles:
-                self.tag_handles[key] = self.DEFAULT_TAGS[key]
-        return value
-
-    # block_node_or_indentless_sequence ::= ALIAS
-    #               | properties (block_content | indentless_block_sequence)?
-    #               | block_content
-    #               | indentless_block_sequence
-    # block_node    ::= ALIAS
-    #                   | properties block_content?
-    #                   | block_content
-    # flow_node     ::= ALIAS
-    #                   | properties flow_content?
-    #                   | flow_content
-    # properties    ::= TAG ANCHOR? | ANCHOR TAG?
-    # block_content     ::= block_collection | flow_collection | SCALAR
-    # flow_content      ::= flow_collection | SCALAR
-    # block_collection  ::= block_sequence | block_mapping
-    # flow_collection   ::= flow_sequence | flow_mapping
-
-    def parse_block_node(self):
-        return self.parse_node(block=True)
-
-    def parse_flow_node(self):
-        return self.parse_node()
-
-    def parse_block_node_or_indentless_sequence(self):
-        return self.parse_node(block=True, indentless_sequence=True)
-
-    def parse_node(self, block=False, indentless_sequence=False):
-        if self.check_token(AliasToken):
-            token = self.get_token()
-            event = AliasEvent(token.value, token.start_mark, token.end_mark)
-            self.state = self.states.pop()
-        else:
-            anchor = None
-            tag = None
-            start_mark = end_mark = tag_mark = None
-            if self.check_token(AnchorToken):
-                token = self.get_token()
-                start_mark = token.start_mark
-                end_mark = token.end_mark
-                anchor = token.value
-                if self.check_token(TagToken):
-                    token = self.get_token()
-                    tag_mark = token.start_mark
-                    end_mark = token.end_mark
-                    tag = token.value
-            elif self.check_token(TagToken):
-                token = self.get_token()
-                start_mark = tag_mark = token.start_mark
-                end_mark = token.end_mark
-                tag = token.value
-                if self.check_token(AnchorToken):
-                    token = self.get_token()
-                    end_mark = token.end_mark
-                    anchor = token.value
-            if tag is not None:
-                handle, suffix = tag
-                if handle is not None:
-                    if handle not in self.tag_handles:
-                        raise ParserError("while parsing a node", start_mark,
-                                "found undefined tag handle %r" % handle.encode('utf-8'),
-                                tag_mark)
-                    tag = self.tag_handles[handle]+suffix
-                else:
-                    tag = suffix
-            #if tag == u'!':
-            #    raise ParserError("while parsing a node", start_mark,
-            #            "found non-specific tag '!'", tag_mark,
-            #            "Please check 'http://pyyaml.org/wiki/YAMLNonSpecificTag' and share your opinion.")
-            if start_mark is None:
-                start_mark = end_mark = self.peek_token().start_mark
-            event = None
-            implicit = (tag is None or tag == u'!')
-            if indentless_sequence and self.check_token(BlockEntryToken):
-                end_mark = self.peek_token().end_mark
-                event = SequenceStartEvent(anchor, tag, implicit,
-                        start_mark, end_mark)
-                self.state = self.parse_indentless_sequence_entry
-            else:
-                if self.check_token(ScalarToken):
-                    token = self.get_token()
-                    end_mark = token.end_mark
-                    if (token.plain and tag is None) or tag == u'!':
-                        implicit = (True, False)
-                    elif tag is None:
-                        implicit = (False, True)
-                    else:
-                        implicit = (False, False)
-                    event = ScalarEvent(anchor, tag, implicit, token.value,
-                            start_mark, end_mark, style=token.style)
-                    self.state = self.states.pop()
-                elif self.check_token(FlowSequenceStartToken):
-                    end_mark = self.peek_token().end_mark
-                    event = SequenceStartEvent(anchor, tag, implicit,
-                            start_mark, end_mark, flow_style=True)
-                    self.state = self.parse_flow_sequence_first_entry
-                elif self.check_token(FlowMappingStartToken):
-                    end_mark = self.peek_token().end_mark
-                    event = MappingStartEvent(anchor, tag, implicit,
-                            start_mark, end_mark, flow_style=True)
-                    self.state = self.parse_flow_mapping_first_key
-                elif block and self.check_token(BlockSequenceStartToken):
-                    end_mark = self.peek_token().start_mark
-                    event = SequenceStartEvent(anchor, tag, implicit,
-                            start_mark, end_mark, flow_style=False)
-                    self.state = self.parse_block_sequence_first_entry
-                elif block and self.check_token(BlockMappingStartToken):
-                    end_mark = self.peek_token().start_mark
-                    event = MappingStartEvent(anchor, tag, implicit,
-                            start_mark, end_mark, flow_style=False)
-                    self.state = self.parse_block_mapping_first_key
-                elif anchor is not None or tag is not None:
-                    # Empty scalars are allowed even if a tag or an anchor is
-                    # specified.
-                    event = ScalarEvent(anchor, tag, (implicit, False), u'',
-                            start_mark, end_mark)
-                    self.state = self.states.pop()
-                else:
-                    if block:
-                        node = 'block'
-                    else:
-                        node = 'flow'
-                    token = self.peek_token()
-                    raise ParserError("while parsing a %s node" % node, start_mark,
-                            "expected the node content, but found %r" % token.id,
-                            token.start_mark)
-        return event
-
-    # block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
-
-    def parse_block_sequence_first_entry(self):
-        token = self.get_token()
-        self.marks.append(token.start_mark)
-        return self.parse_block_sequence_entry()
-
-    def parse_block_sequence_entry(self):
-        if self.check_token(BlockEntryToken):
-            token = self.get_token()
-            if not self.check_token(BlockEntryToken, BlockEndToken):
-                self.states.append(self.parse_block_sequence_entry)
-                return self.parse_block_node()
-            else:
-                self.state = self.parse_block_sequence_entry
-                return self.process_empty_scalar(token.end_mark)
-        if not self.check_token(BlockEndToken):
-            token = self.peek_token()
-            raise ParserError("while parsing a block collection", self.marks[-1],
-                    "expected <block end>, but found %r" % token.id, token.start_mark)
-        token = self.get_token()
-        event = SequenceEndEvent(token.start_mark, token.end_mark)
-        self.state = self.states.pop()
-        self.marks.pop()
-        return event
-
-    # indentless_sequence ::= (BLOCK-ENTRY block_node?)+
-
-    def parse_indentless_sequence_entry(self):
-        if self.check_token(BlockEntryToken):
-            token = self.get_token()
-            if not self.check_token(BlockEntryToken,
-                    KeyToken, ValueToken, BlockEndToken):
-                self.states.append(self.parse_indentless_sequence_entry)
-                return self.parse_block_node()
-            else:
-                self.state = self.parse_indentless_sequence_entry
-                return self.process_empty_scalar(token.end_mark)
-        token = self.peek_token()
-        event = SequenceEndEvent(token.start_mark, token.start_mark)
-        self.state = self.states.pop()
-        return event
-
-    # block_mapping     ::= BLOCK-MAPPING_START
-    #                       ((KEY block_node_or_indentless_sequence?)?
-    #                       (VALUE block_node_or_indentless_sequence?)?)*
-    #                       BLOCK-END
-
-    def parse_block_mapping_first_key(self):
-        token = self.get_token()
-        self.marks.append(token.start_mark)
-        return self.parse_block_mapping_key()
-
-    def parse_block_mapping_key(self):
-        if self.check_token(KeyToken):
-            token = self.get_token()
-            if not self.check_token(KeyToken, ValueToken, BlockEndToken):
-                self.states.append(self.parse_block_mapping_value)
-                return self.parse_block_node_or_indentless_sequence()
-            else:
-                self.state = self.parse_block_mapping_value
-                return self.process_empty_scalar(token.end_mark)
-        if not self.check_token(BlockEndToken):
-            token = self.peek_token()
-            raise ParserError("while parsing a block mapping", self.marks[-1],
-                    "expected <block end>, but found %r" % token.id, token.start_mark)
-        token = self.get_token()
-        event = MappingEndEvent(token.start_mark, token.end_mark)
-        self.state = self.states.pop()
-        self.marks.pop()
-        return event
-
-    def parse_block_mapping_value(self):
-        if self.check_token(ValueToken):
-            token = self.get_token()
-            if not self.check_token(KeyToken, ValueToken, BlockEndToken):
-                self.states.append(self.parse_block_mapping_key)
-                return self.parse_block_node_or_indentless_sequence()
-            else:
-                self.state = self.parse_block_mapping_key
-                return self.process_empty_scalar(token.end_mark)
-        else:
-            self.state = self.parse_block_mapping_key
-            token = self.peek_token()
-            return self.process_empty_scalar(token.start_mark)
-
-    # flow_sequence     ::= FLOW-SEQUENCE-START
-    #                       (flow_sequence_entry FLOW-ENTRY)*
-    #                       flow_sequence_entry?
-    #                       FLOW-SEQUENCE-END
-    # flow_sequence_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-    #
-    # Note that while production rules for both flow_sequence_entry and
-    # flow_mapping_entry are equal, their interpretations are different.
-    # For `flow_sequence_entry`, the part `KEY flow_node? (VALUE flow_node?)?`
-    # generate an inline mapping (set syntax).
-
-    def parse_flow_sequence_first_entry(self):
-        token = self.get_token()
-        self.marks.append(token.start_mark)
-        return self.parse_flow_sequence_entry(first=True)
-
-    def parse_flow_sequence_entry(self, first=False):
-        if not self.check_token(FlowSequenceEndToken):
-            if not first:
-                if self.check_token(FlowEntryToken):
-                    self.get_token()
-                else:
-                    token = self.peek_token()
-                    raise ParserError("while parsing a flow sequence", self.marks[-1],
-                            "expected ',' or ']', but got %r" % token.id, token.start_mark)
-            
-            if self.check_token(KeyToken):
-                token = self.peek_token()
-                event = MappingStartEvent(None, None, True,
-                        token.start_mark, token.end_mark,
-                        flow_style=True)
-                self.state = self.parse_flow_sequence_entry_mapping_key
-                return event
-            elif not self.check_token(FlowSequenceEndToken):
-                self.states.append(self.parse_flow_sequence_entry)
-                return self.parse_flow_node()
-        token = self.get_token()
-        event = SequenceEndEvent(token.start_mark, token.end_mark)
-        self.state = self.states.pop()
-        self.marks.pop()
-        return event
-
-    def parse_flow_sequence_entry_mapping_key(self):
-        token = self.get_token()
-        if not self.check_token(ValueToken,
-                FlowEntryToken, FlowSequenceEndToken):
-            self.states.append(self.parse_flow_sequence_entry_mapping_value)
-            return self.parse_flow_node()
-        else:
-            self.state = self.parse_flow_sequence_entry_mapping_value
-            return self.process_empty_scalar(token.end_mark)
-
-    def parse_flow_sequence_entry_mapping_value(self):
-        if self.check_token(ValueToken):
-            token = self.get_token()
-            if not self.check_token(FlowEntryToken, FlowSequenceEndToken):
-                self.states.append(self.parse_flow_sequence_entry_mapping_end)
-                return self.parse_flow_node()
-            else:
-                self.state = self.parse_flow_sequence_entry_mapping_end
-                return self.process_empty_scalar(token.end_mark)
-        else:
-            self.state = self.parse_flow_sequence_entry_mapping_end
-            token = self.peek_token()
-            return self.process_empty_scalar(token.start_mark)
-
-    def parse_flow_sequence_entry_mapping_end(self):
-        self.state = self.parse_flow_sequence_entry
-        token = self.peek_token()
-        return MappingEndEvent(token.start_mark, token.start_mark)
-
-    # flow_mapping  ::= FLOW-MAPPING-START
-    #                   (flow_mapping_entry FLOW-ENTRY)*
-    #                   flow_mapping_entry?
-    #                   FLOW-MAPPING-END
-    # flow_mapping_entry    ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-
-    def parse_flow_mapping_first_key(self):
-        token = self.get_token()
-        self.marks.append(token.start_mark)
-        return self.parse_flow_mapping_key(first=True)
-
-    def parse_flow_mapping_key(self, first=False):
-        if not self.check_token(FlowMappingEndToken):
-            if not first:
-                if self.check_token(FlowEntryToken):
-                    self.get_token()
-                else:
-                    token = self.peek_token()
-                    raise ParserError("while parsing a flow mapping", self.marks[-1],
-                            "expected ',' or '}', but got %r" % token.id, token.start_mark)
-            if self.check_token(KeyToken):
-                token = self.get_token()
-                if not self.check_token(ValueToken,
-                        FlowEntryToken, FlowMappingEndToken):
-                    self.states.append(self.parse_flow_mapping_value)
-                    return self.parse_flow_node()
-                else:
-                    self.state = self.parse_flow_mapping_value
-                    return self.process_empty_scalar(token.end_mark)
-            elif not self.check_token(FlowMappingEndToken):
-                self.states.append(self.parse_flow_mapping_empty_value)
-                return self.parse_flow_node()
-        token = self.get_token()
-        event = MappingEndEvent(token.start_mark, token.end_mark)
-        self.state = self.states.pop()
-        self.marks.pop()
-        return event
-
-    def parse_flow_mapping_value(self):
-        if self.check_token(ValueToken):
-            token = self.get_token()
-            if not self.check_token(FlowEntryToken, FlowMappingEndToken):
-                self.states.append(self.parse_flow_mapping_key)
-                return self.parse_flow_node()
-            else:
-                self.state = self.parse_flow_mapping_key
-                return self.process_empty_scalar(token.end_mark)
-        else:
-            self.state = self.parse_flow_mapping_key
-            token = self.peek_token()
-            return self.process_empty_scalar(token.start_mark)
-
-    def parse_flow_mapping_empty_value(self):
-        self.state = self.parse_flow_mapping_key
-        return self.process_empty_scalar(self.peek_token().start_mark)
-
-    def process_empty_scalar(self, mark):
-        return ScalarEvent(None, None, (True, False), u'', mark, mark)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/reader.py b/collectors/python.d.plugin/python_modules/pyyaml2/reader.py
deleted file mode 100644
index 8d422954e..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/reader.py
+++ /dev/null
@@ -1,191 +0,0 @@
-# SPDX-License-Identifier: MIT
-# This module contains abstractions for the input stream. You don't have to
-# looks further, there are no pretty code.
-#
-# We define two classes here.
-#
-#   Mark(source, line, column)
-# It's just a record and its only use is producing nice error messages.
-# Parser does not use it for any other purposes.
-#
-#   Reader(source, data)
-# Reader determines the encoding of `data` and converts it to unicode.
-# Reader provides the following methods and attributes:
-#   reader.peek(length=1) - return the next `length` characters
-#   reader.forward(length=1) - move the current position to `length` characters.
-#   reader.index - the number of the current character.
-#   reader.line, stream.column - the line and the column of the current character.
-
-__all__ = ['Reader', 'ReaderError']
-
-from error import YAMLError, Mark
-
-import codecs, re
-
-class ReaderError(YAMLError):
-
-    def __init__(self, name, position, character, encoding, reason):
-        self.name = name
-        self.character = character
-        self.position = position
-        self.encoding = encoding
-        self.reason = reason
-
-    def __str__(self):
-        if isinstance(self.character, str):
-            return "'%s' codec can't decode byte #x%02x: %s\n"  \
-                    "  in \"%s\", position %d"    \
-                    % (self.encoding, ord(self.character), self.reason,
-                            self.name, self.position)
-        else:
-            return "unacceptable character #x%04x: %s\n"    \
-                    "  in \"%s\", position %d"    \
-                    % (self.character, self.reason,
-                            self.name, self.position)
-
-class Reader(object):
-    # Reader:
-    # - determines the data encoding and converts it to unicode,
-    # - checks if characters are in allowed range,
-    # - adds '\0' to the end.
-
-    # Reader accepts
-    #  - a `str` object,
-    #  - a `unicode` object,
-    #  - a file-like object with its `read` method returning `str`,
-    #  - a file-like object with its `read` method returning `unicode`.
-
-    # Yeah, it's ugly and slow.
-
-    def __init__(self, stream):
-        self.name = None
-        self.stream = None
-        self.stream_pointer = 0
-        self.eof = True
-        self.buffer = u''
-        self.pointer = 0
-        self.raw_buffer = None
-        self.raw_decode = None
-        self.encoding = None
-        self.index = 0
-        self.line = 0
-        self.column = 0
-        if isinstance(stream, unicode):
-            self.name = "<unicode string>"
-            self.check_printable(stream)
-            self.buffer = stream+u'\0'
-        elif isinstance(stream, str):
-            self.name = "<string>"
-            self.raw_buffer = stream
-            self.determine_encoding()
-        else:
-            self.stream = stream
-            self.name = getattr(stream, 'name', "<file>")
-            self.eof = False
-            self.raw_buffer = ''
-            self.determine_encoding()
-
-    def peek(self, index=0):
-        try:
-            return self.buffer[self.pointer+index]
-        except IndexError:
-            self.update(index+1)
-            return self.buffer[self.pointer+index]
-
-    def prefix(self, length=1):
-        if self.pointer+length >= len(self.buffer):
-            self.update(length)
-        return self.buffer[self.pointer:self.pointer+length]
-
-    def forward(self, length=1):
-        if self.pointer+length+1 >= len(self.buffer):
-            self.update(length+1)
-        while length:
-            ch = self.buffer[self.pointer]
-            self.pointer += 1
-            self.index += 1
-            if ch in u'\n\x85\u2028\u2029'  \
-                    or (ch == u'\r' and self.buffer[self.pointer] != u'\n'):
-                self.line += 1
-                self.column = 0
-            elif ch != u'\uFEFF':
-                self.column += 1
-            length -= 1
-
-    def get_mark(self):
-        if self.stream is None:
-            return Mark(self.name, self.index, self.line, self.column,
-                    self.buffer, self.pointer)
-        else:
-            return Mark(self.name, self.index, self.line, self.column,
-                    None, None)
-
-    def determine_encoding(self):
-        while not self.eof and len(self.raw_buffer) < 2:
-            self.update_raw()
-        if not isinstance(self.raw_buffer, unicode):
-            if self.raw_buffer.startswith(codecs.BOM_UTF16_LE):
-                self.raw_decode = codecs.utf_16_le_decode
-                self.encoding = 'utf-16-le'
-            elif self.raw_buffer.startswith(codecs.BOM_UTF16_BE):
-                self.raw_decode = codecs.utf_16_be_decode
-                self.encoding = 'utf-16-be'
-            else:
-                self.raw_decode = codecs.utf_8_decode
-                self.encoding = 'utf-8'
-        self.update(1)
-
-    NON_PRINTABLE = re.compile(u'[^\x09\x0A\x0D\x20-\x7E\x85\xA0-\uD7FF\uE000-\uFFFD]')
-    def check_printable(self, data):
-        match = self.NON_PRINTABLE.search(data)
-        if match:
-            character = match.group()
-            position = self.index+(len(self.buffer)-self.pointer)+match.start()
-            raise ReaderError(self.name, position, ord(character),
-                    'unicode', "special characters are not allowed")
-
-    def update(self, length):
-        if self.raw_buffer is None:
-            return
-        self.buffer = self.buffer[self.pointer:]
-        self.pointer = 0
-        while len(self.buffer) < length:
-            if not self.eof:
-                self.update_raw()
-            if self.raw_decode is not None:
-                try:
-                    data, converted = self.raw_decode(self.raw_buffer,
-                            'strict', self.eof)
-                except UnicodeDecodeError, exc:
-                    character = exc.object[exc.start]
-                    if self.stream is not None:
-                        position = self.stream_pointer-len(self.raw_buffer)+exc.start
-                    else:
-                        position = exc.start
-                    raise ReaderError(self.name, position, character,
-                            exc.encoding, exc.reason)
-            else:
-                data = self.raw_buffer
-                converted = len(data)
-            self.check_printable(data)
-            self.buffer += data
-            self.raw_buffer = self.raw_buffer[converted:]
-            if self.eof:
-                self.buffer += u'\0'
-                self.raw_buffer = None
-                break
-
-    def update_raw(self, size=1024):
-        data = self.stream.read(size)
-        if data:
-            self.raw_buffer += data
-            self.stream_pointer += len(data)
-        else:
-            self.eof = True
-
-#try:
-#    import psyco
-#    psyco.bind(Reader)
-#except ImportError:
-#    pass
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/representer.py b/collectors/python.d.plugin/python_modules/pyyaml2/representer.py
deleted file mode 100644
index 0a1404eca..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/representer.py
+++ /dev/null
@@ -1,485 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['BaseRepresenter', 'SafeRepresenter', 'Representer',
-    'RepresenterError']
-
-from error import *
-from nodes import *
-
-import datetime
-
-import sys, copy_reg, types
-
-class RepresenterError(YAMLError):
-    pass
-
-class BaseRepresenter(object):
-
-    yaml_representers = {}
-    yaml_multi_representers = {}
-
-    def __init__(self, default_style=None, default_flow_style=None):
-        self.default_style = default_style
-        self.default_flow_style = default_flow_style
-        self.represented_objects = {}
-        self.object_keeper = []
-        self.alias_key = None
-
-    def represent(self, data):
-        node = self.represent_data(data)
-        self.serialize(node)
-        self.represented_objects = {}
-        self.object_keeper = []
-        self.alias_key = None
-
-    def get_classobj_bases(self, cls):
-        bases = [cls]
-        for base in cls.__bases__:
-            bases.extend(self.get_classobj_bases(base))
-        return bases
-
-    def represent_data(self, data):
-        if self.ignore_aliases(data):
-            self.alias_key = None
-        else:
-            self.alias_key = id(data)
-        if self.alias_key is not None:
-            if self.alias_key in self.represented_objects:
-                node = self.represented_objects[self.alias_key]
-                #if node is None:
-                #    raise RepresenterError("recursive objects are not allowed: %r" % data)
-                return node
-            #self.represented_objects[alias_key] = None
-            self.object_keeper.append(data)
-        data_types = type(data).__mro__
-        if type(data) is types.InstanceType:
-            data_types = self.get_classobj_bases(data.__class__)+list(data_types)
-        if data_types[0] in self.yaml_representers:
-            node = self.yaml_representers[data_types[0]](self, data)
-        else:
-            for data_type in data_types:
-                if data_type in self.yaml_multi_representers:
-                    node = self.yaml_multi_representers[data_type](self, data)
-                    break
-            else:
-                if None in self.yaml_multi_representers:
-                    node = self.yaml_multi_representers[None](self, data)
-                elif None in self.yaml_representers:
-                    node = self.yaml_representers[None](self, data)
-                else:
-                    node = ScalarNode(None, unicode(data))
-        #if alias_key is not None:
-        #    self.represented_objects[alias_key] = node
-        return node
-
-    def add_representer(cls, data_type, representer):
-        if not 'yaml_representers' in cls.__dict__:
-            cls.yaml_representers = cls.yaml_representers.copy()
-        cls.yaml_representers[data_type] = representer
-    add_representer = classmethod(add_representer)
-
-    def add_multi_representer(cls, data_type, representer):
-        if not 'yaml_multi_representers' in cls.__dict__:
-            cls.yaml_multi_representers = cls.yaml_multi_representers.copy()
-        cls.yaml_multi_representers[data_type] = representer
-    add_multi_representer = classmethod(add_multi_representer)
-
-    def represent_scalar(self, tag, value, style=None):
-        if style is None:
-            style = self.default_style
-        node = ScalarNode(tag, value, style=style)
-        if self.alias_key is not None:
-            self.represented_objects[self.alias_key] = node
-        return node
-
-    def represent_sequence(self, tag, sequence, flow_style=None):
-        value = []
-        node = SequenceNode(tag, value, flow_style=flow_style)
-        if self.alias_key is not None:
-            self.represented_objects[self.alias_key] = node
-        best_style = True
-        for item in sequence:
-            node_item = self.represent_data(item)
-            if not (isinstance(node_item, ScalarNode) and not node_item.style):
-                best_style = False
-            value.append(node_item)
-        if flow_style is None:
-            if self.default_flow_style is not None:
-                node.flow_style = self.default_flow_style
-            else:
-                node.flow_style = best_style
-        return node
-
-    def represent_mapping(self, tag, mapping, flow_style=None):
-        value = []
-        node = MappingNode(tag, value, flow_style=flow_style)
-        if self.alias_key is not None:
-            self.represented_objects[self.alias_key] = node
-        best_style = True
-        if hasattr(mapping, 'items'):
-            mapping = mapping.items()
-            mapping.sort()
-        for item_key, item_value in mapping:
-            node_key = self.represent_data(item_key)
-            node_value = self.represent_data(item_value)
-            if not (isinstance(node_key, ScalarNode) and not node_key.style):
-                best_style = False
-            if not (isinstance(node_value, ScalarNode) and not node_value.style):
-                best_style = False
-            value.append((node_key, node_value))
-        if flow_style is None:
-            if self.default_flow_style is not None:
-                node.flow_style = self.default_flow_style
-            else:
-                node.flow_style = best_style
-        return node
-
-    def ignore_aliases(self, data):
-        return False
-
-class SafeRepresenter(BaseRepresenter):
-
-    def ignore_aliases(self, data):
-        if data in [None, ()]:
-            return True
-        if isinstance(data, (str, unicode, bool, int, float)):
-            return True
-
-    def represent_none(self, data):
-        return self.represent_scalar(u'tag:yaml.org,2002:null',
-                u'null')
-
-    def represent_str(self, data):
-        tag = None
-        style = None
-        try:
-            data = unicode(data, 'ascii')
-            tag = u'tag:yaml.org,2002:str'
-        except UnicodeDecodeError:
-            try:
-                data = unicode(data, 'utf-8')
-                tag = u'tag:yaml.org,2002:str'
-            except UnicodeDecodeError:
-                data = data.encode('base64')
-                tag = u'tag:yaml.org,2002:binary'
-                style = '|'
-        return self.represent_scalar(tag, data, style=style)
-
-    def represent_unicode(self, data):
-        return self.represent_scalar(u'tag:yaml.org,2002:str', data)
-
-    def represent_bool(self, data):
-        if data:
-            value = u'true'
-        else:
-            value = u'false'
-        return self.represent_scalar(u'tag:yaml.org,2002:bool', value)
-
-    def represent_int(self, data):
-        return self.represent_scalar(u'tag:yaml.org,2002:int', unicode(data))
-
-    def represent_long(self, data):
-        return self.represent_scalar(u'tag:yaml.org,2002:int', unicode(data))
-
-    inf_value = 1e300
-    while repr(inf_value) != repr(inf_value*inf_value):
-        inf_value *= inf_value
-
-    def represent_float(self, data):
-        if data != data or (data == 0.0 and data == 1.0):
-            value = u'.nan'
-        elif data == self.inf_value:
-            value = u'.inf'
-        elif data == -self.inf_value:
-            value = u'-.inf'
-        else:
-            value = unicode(repr(data)).lower()
-            # Note that in some cases `repr(data)` represents a float number
-            # without the decimal parts.  For instance:
-            #   >>> repr(1e17)
-            #   '1e17'
-            # Unfortunately, this is not a valid float representation according
-            # to the definition of the `!!float` tag.  We fix this by adding
-            # '.0' before the 'e' symbol.
-            if u'.' not in value and u'e' in value:
-                value = value.replace(u'e', u'.0e', 1)
-        return self.represent_scalar(u'tag:yaml.org,2002:float', value)
-
-    def represent_list(self, data):
-        #pairs = (len(data) > 0 and isinstance(data, list))
-        #if pairs:
-        #    for item in data:
-        #        if not isinstance(item, tuple) or len(item) != 2:
-        #            pairs = False
-        #            break
-        #if not pairs:
-            return self.represent_sequence(u'tag:yaml.org,2002:seq', data)
-        #value = []
-        #for item_key, item_value in data:
-        #    value.append(self.represent_mapping(u'tag:yaml.org,2002:map',
-        #        [(item_key, item_value)]))
-        #return SequenceNode(u'tag:yaml.org,2002:pairs', value)
-
-    def represent_dict(self, data):
-        return self.represent_mapping(u'tag:yaml.org,2002:map', data)
-
-    def represent_set(self, data):
-        value = {}
-        for key in data:
-            value[key] = None
-        return self.represent_mapping(u'tag:yaml.org,2002:set', value)
-
-    def represent_date(self, data):
-        value = unicode(data.isoformat())
-        return self.represent_scalar(u'tag:yaml.org,2002:timestamp', value)
-
-    def represent_datetime(self, data):
-        value = unicode(data.isoformat(' '))
-        return self.represent_scalar(u'tag:yaml.org,2002:timestamp', value)
-
-    def represent_yaml_object(self, tag, data, cls, flow_style=None):
-        if hasattr(data, '__getstate__'):
-            state = data.__getstate__()
-        else:
-            state = data.__dict__.copy()
-        return self.represent_mapping(tag, state, flow_style=flow_style)
-
-    def represent_undefined(self, data):
-        raise RepresenterError("cannot represent an object: %s" % data)
-
-SafeRepresenter.add_representer(type(None),
-        SafeRepresenter.represent_none)
-
-SafeRepresenter.add_representer(str,
-        SafeRepresenter.represent_str)
-
-SafeRepresenter.add_representer(unicode,
-        SafeRepresenter.represent_unicode)
-
-SafeRepresenter.add_representer(bool,
-        SafeRepresenter.represent_bool)
-
-SafeRepresenter.add_representer(int,
-        SafeRepresenter.represent_int)
-
-SafeRepresenter.add_representer(long,
-        SafeRepresenter.represent_long)
-
-SafeRepresenter.add_representer(float,
-        SafeRepresenter.represent_float)
-
-SafeRepresenter.add_representer(list,
-        SafeRepresenter.represent_list)
-
-SafeRepresenter.add_representer(tuple,
-        SafeRepresenter.represent_list)
-
-SafeRepresenter.add_representer(dict,
-        SafeRepresenter.represent_dict)
-
-SafeRepresenter.add_representer(set,
-        SafeRepresenter.represent_set)
-
-SafeRepresenter.add_representer(datetime.date,
-        SafeRepresenter.represent_date)
-
-SafeRepresenter.add_representer(datetime.datetime,
-        SafeRepresenter.represent_datetime)
-
-SafeRepresenter.add_representer(None,
-        SafeRepresenter.represent_undefined)
-
-class Representer(SafeRepresenter):
-
-    def represent_str(self, data):
-        tag = None
-        style = None
-        try:
-            data = unicode(data, 'ascii')
-            tag = u'tag:yaml.org,2002:str'
-        except UnicodeDecodeError:
-            try:
-                data = unicode(data, 'utf-8')
-                tag = u'tag:yaml.org,2002:python/str'
-            except UnicodeDecodeError:
-                data = data.encode('base64')
-                tag = u'tag:yaml.org,2002:binary'
-                style = '|'
-        return self.represent_scalar(tag, data, style=style)
-
-    def represent_unicode(self, data):
-        tag = None
-        try:
-            data.encode('ascii')
-            tag = u'tag:yaml.org,2002:python/unicode'
-        except UnicodeEncodeError:
-            tag = u'tag:yaml.org,2002:str'
-        return self.represent_scalar(tag, data)
-
-    def represent_long(self, data):
-        tag = u'tag:yaml.org,2002:int'
-        if int(data) is not data:
-            tag = u'tag:yaml.org,2002:python/long'
-        return self.represent_scalar(tag, unicode(data))
-
-    def represent_complex(self, data):
-        if data.imag == 0.0:
-            data = u'%r' % data.real
-        elif data.real == 0.0:
-            data = u'%rj' % data.imag
-        elif data.imag > 0:
-            data = u'%r+%rj' % (data.real, data.imag)
-        else:
-            data = u'%r%rj' % (data.real, data.imag)
-        return self.represent_scalar(u'tag:yaml.org,2002:python/complex', data)
-
-    def represent_tuple(self, data):
-        return self.represent_sequence(u'tag:yaml.org,2002:python/tuple', data)
-
-    def represent_name(self, data):
-        name = u'%s.%s' % (data.__module__, data.__name__)
-        return self.represent_scalar(u'tag:yaml.org,2002:python/name:'+name, u'')
-
-    def represent_module(self, data):
-        return self.represent_scalar(
-                u'tag:yaml.org,2002:python/module:'+data.__name__, u'')
-
-    def represent_instance(self, data):
-        # For instances of classic classes, we use __getinitargs__ and
-        # __getstate__ to serialize the data.
-
-        # If data.__getinitargs__ exists, the object must be reconstructed by
-        # calling cls(**args), where args is a tuple returned by
-        # __getinitargs__. Otherwise, the cls.__init__ method should never be
-        # called and the class instance is created by instantiating a trivial
-        # class and assigning to the instance's __class__ variable.
-
-        # If data.__getstate__ exists, it returns the state of the object.
-        # Otherwise, the state of the object is data.__dict__.
-
-        # We produce either a !!python/object or !!python/object/new node.
-        # If data.__getinitargs__ does not exist and state is a dictionary, we
-        # produce a !!python/object node . Otherwise we produce a
-        # !!python/object/new node.
-
-        cls = data.__class__
-        class_name = u'%s.%s' % (cls.__module__, cls.__name__)
-        args = None
-        state = None
-        if hasattr(data, '__getinitargs__'):
-            args = list(data.__getinitargs__())
-        if hasattr(data, '__getstate__'):
-            state = data.__getstate__()
-        else:
-            state = data.__dict__
-        if args is None and isinstance(state, dict):
-            return self.represent_mapping(
-                    u'tag:yaml.org,2002:python/object:'+class_name, state)
-        if isinstance(state, dict) and not state:
-            return self.represent_sequence(
-                    u'tag:yaml.org,2002:python/object/new:'+class_name, args)
-        value = {}
-        if args:
-            value['args'] = args
-        value['state'] = state
-        return self.represent_mapping(
-                u'tag:yaml.org,2002:python/object/new:'+class_name, value)
-
-    def represent_object(self, data):
-        # We use __reduce__ API to save the data. data.__reduce__ returns
-        # a tuple of length 2-5:
-        #   (function, args, state, listitems, dictitems)
-
-        # For reconstructing, we calls function(*args), then set its state,
-        # listitems, and dictitems if they are not None.
-
-        # A special case is when function.__name__ == '__newobj__'. In this
-        # case we create the object with args[0].__new__(*args).
-
-        # Another special case is when __reduce__ returns a string - we don't
-        # support it.
-
-        # We produce a !!python/object, !!python/object/new or
-        # !!python/object/apply node.
-
-        cls = type(data)
-        if cls in copy_reg.dispatch_table:
-            reduce = copy_reg.dispatch_table[cls](data)
-        elif hasattr(data, '__reduce_ex__'):
-            reduce = data.__reduce_ex__(2)
-        elif hasattr(data, '__reduce__'):
-            reduce = data.__reduce__()
-        else:
-            raise RepresenterError("cannot represent object: %r" % data)
-        reduce = (list(reduce)+[None]*5)[:5]
-        function, args, state, listitems, dictitems = reduce
-        args = list(args)
-        if state is None:
-            state = {}
-        if listitems is not None:
-            listitems = list(listitems)
-        if dictitems is not None:
-            dictitems = dict(dictitems)
-        if function.__name__ == '__newobj__':
-            function = args[0]
-            args = args[1:]
-            tag = u'tag:yaml.org,2002:python/object/new:'
-            newobj = True
-        else:
-            tag = u'tag:yaml.org,2002:python/object/apply:'
-            newobj = False
-        function_name = u'%s.%s' % (function.__module__, function.__name__)
-        if not args and not listitems and not dictitems \
-                and isinstance(state, dict) and newobj:
-            return self.represent_mapping(
-                    u'tag:yaml.org,2002:python/object:'+function_name, state)
-        if not listitems and not dictitems  \
-                and isinstance(state, dict) and not state:
-            return self.represent_sequence(tag+function_name, args)
-        value = {}
-        if args:
-            value['args'] = args
-        if state or not isinstance(state, dict):
-            value['state'] = state
-        if listitems:
-            value['listitems'] = listitems
-        if dictitems:
-            value['dictitems'] = dictitems
-        return self.represent_mapping(tag+function_name, value)
-
-Representer.add_representer(str,
-        Representer.represent_str)
-
-Representer.add_representer(unicode,
-        Representer.represent_unicode)
-
-Representer.add_representer(long,
-        Representer.represent_long)
-
-Representer.add_representer(complex,
-        Representer.represent_complex)
-
-Representer.add_representer(tuple,
-        Representer.represent_tuple)
-
-Representer.add_representer(type,
-        Representer.represent_name)
-
-Representer.add_representer(types.ClassType,
-        Representer.represent_name)
-
-Representer.add_representer(types.FunctionType,
-        Representer.represent_name)
-
-Representer.add_representer(types.BuiltinFunctionType,
-        Representer.represent_name)
-
-Representer.add_representer(types.ModuleType,
-        Representer.represent_module)
-
-Representer.add_multi_representer(types.InstanceType,
-        Representer.represent_instance)
-
-Representer.add_multi_representer(object,
-        Representer.represent_object)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/resolver.py b/collectors/python.d.plugin/python_modules/pyyaml2/resolver.py
deleted file mode 100644
index 49922debf..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/resolver.py
+++ /dev/null
@@ -1,225 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['BaseResolver', 'Resolver']
-
-from error import *
-from nodes import *
-
-import re
-
-class ResolverError(YAMLError):
-    pass
-
-class BaseResolver(object):
-
-    DEFAULT_SCALAR_TAG = u'tag:yaml.org,2002:str'
-    DEFAULT_SEQUENCE_TAG = u'tag:yaml.org,2002:seq'
-    DEFAULT_MAPPING_TAG = u'tag:yaml.org,2002:map'
-
-    yaml_implicit_resolvers = {}
-    yaml_path_resolvers = {}
-
-    def __init__(self):
-        self.resolver_exact_paths = []
-        self.resolver_prefix_paths = []
-
-    def add_implicit_resolver(cls, tag, regexp, first):
-        if not 'yaml_implicit_resolvers' in cls.__dict__:
-            cls.yaml_implicit_resolvers = cls.yaml_implicit_resolvers.copy()
-        if first is None:
-            first = [None]
-        for ch in first:
-            cls.yaml_implicit_resolvers.setdefault(ch, []).append((tag, regexp))
-    add_implicit_resolver = classmethod(add_implicit_resolver)
-
-    def add_path_resolver(cls, tag, path, kind=None):
-        # Note: `add_path_resolver` is experimental.  The API could be changed.
-        # `new_path` is a pattern that is matched against the path from the
-        # root to the node that is being considered.  `node_path` elements are
-        # tuples `(node_check, index_check)`.  `node_check` is a node class:
-        # `ScalarNode`, `SequenceNode`, `MappingNode` or `None`.  `None`
-        # matches any kind of a node.  `index_check` could be `None`, a boolean
-        # value, a string value, or a number.  `None` and `False` match against
-        # any _value_ of sequence and mapping nodes.  `True` matches against
-        # any _key_ of a mapping node.  A string `index_check` matches against
-        # a mapping value that corresponds to a scalar key which content is
-        # equal to the `index_check` value.  An integer `index_check` matches
-        # against a sequence value with the index equal to `index_check`.
-        if not 'yaml_path_resolvers' in cls.__dict__:
-            cls.yaml_path_resolvers = cls.yaml_path_resolvers.copy()
-        new_path = []
-        for element in path:
-            if isinstance(element, (list, tuple)):
-                if len(element) == 2:
-                    node_check, index_check = element
-                elif len(element) == 1:
-                    node_check = element[0]
-                    index_check = True
-                else:
-                    raise ResolverError("Invalid path element: %s" % element)
-            else:
-                node_check = None
-                index_check = element
-            if node_check is str:
-                node_check = ScalarNode
-            elif node_check is list:
-                node_check = SequenceNode
-            elif node_check is dict:
-                node_check = MappingNode
-            elif node_check not in [ScalarNode, SequenceNode, MappingNode]  \
-                    and not isinstance(node_check, basestring)  \
-                    and node_check is not None:
-                raise ResolverError("Invalid node checker: %s" % node_check)
-            if not isinstance(index_check, (basestring, int))   \
-                    and index_check is not None:
-                raise ResolverError("Invalid index checker: %s" % index_check)
-            new_path.append((node_check, index_check))
-        if kind is str:
-            kind = ScalarNode
-        elif kind is list:
-            kind = SequenceNode
-        elif kind is dict:
-            kind = MappingNode
-        elif kind not in [ScalarNode, SequenceNode, MappingNode]    \
-                and kind is not None:
-            raise ResolverError("Invalid node kind: %s" % kind)
-        cls.yaml_path_resolvers[tuple(new_path), kind] = tag
-    add_path_resolver = classmethod(add_path_resolver)
-
-    def descend_resolver(self, current_node, current_index):
-        if not self.yaml_path_resolvers:
-            return
-        exact_paths = {}
-        prefix_paths = []
-        if current_node:
-            depth = len(self.resolver_prefix_paths)
-            for path, kind in self.resolver_prefix_paths[-1]:
-                if self.check_resolver_prefix(depth, path, kind,
-                        current_node, current_index):
-                    if len(path) > depth:
-                        prefix_paths.append((path, kind))
-                    else:
-                        exact_paths[kind] = self.yaml_path_resolvers[path, kind]
-        else:
-            for path, kind in self.yaml_path_resolvers:
-                if not path:
-                    exact_paths[kind] = self.yaml_path_resolvers[path, kind]
-                else:
-                    prefix_paths.append((path, kind))
-        self.resolver_exact_paths.append(exact_paths)
-        self.resolver_prefix_paths.append(prefix_paths)
-
-    def ascend_resolver(self):
-        if not self.yaml_path_resolvers:
-            return
-        self.resolver_exact_paths.pop()
-        self.resolver_prefix_paths.pop()
-
-    def check_resolver_prefix(self, depth, path, kind,
-            current_node, current_index):
-        node_check, index_check = path[depth-1]
-        if isinstance(node_check, basestring):
-            if current_node.tag != node_check:
-                return
-        elif node_check is not None:
-            if not isinstance(current_node, node_check):
-                return
-        if index_check is True and current_index is not None:
-            return
-        if (index_check is False or index_check is None)    \
-                and current_index is None:
-            return
-        if isinstance(index_check, basestring):
-            if not (isinstance(current_index, ScalarNode)
-                    and index_check == current_index.value):
-                return
-        elif isinstance(index_check, int) and not isinstance(index_check, bool):
-            if index_check != current_index:
-                return
-        return True
-
-    def resolve(self, kind, value, implicit):
-        if kind is ScalarNode and implicit[0]:
-            if value == u'':
-                resolvers = self.yaml_implicit_resolvers.get(u'', [])
-            else:
-                resolvers = self.yaml_implicit_resolvers.get(value[0], [])
-            resolvers += self.yaml_implicit_resolvers.get(None, [])
-            for tag, regexp in resolvers:
-                if regexp.match(value):
-                    return tag
-            implicit = implicit[1]
-        if self.yaml_path_resolvers:
-            exact_paths = self.resolver_exact_paths[-1]
-            if kind in exact_paths:
-                return exact_paths[kind]
-            if None in exact_paths:
-                return exact_paths[None]
-        if kind is ScalarNode:
-            return self.DEFAULT_SCALAR_TAG
-        elif kind is SequenceNode:
-            return self.DEFAULT_SEQUENCE_TAG
-        elif kind is MappingNode:
-            return self.DEFAULT_MAPPING_TAG
-
-class Resolver(BaseResolver):
-    pass
-
-Resolver.add_implicit_resolver(
-        u'tag:yaml.org,2002:bool',
-        re.compile(ur'''^(?:yes|Yes|YES|no|No|NO
-                    |true|True|TRUE|false|False|FALSE
-                    |on|On|ON|off|Off|OFF)$''', re.X),
-        list(u'yYnNtTfFoO'))
-
-Resolver.add_implicit_resolver(
-        u'tag:yaml.org,2002:float',
-        re.compile(ur'''^(?:[-+]?(?:[0-9][0-9_]*)\.[0-9_]*(?:[eE][-+][0-9]+)?
-                    |\.[0-9_]+(?:[eE][-+][0-9]+)?
-                    |[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\.[0-9_]*
-                    |[-+]?\.(?:inf|Inf|INF)
-                    |\.(?:nan|NaN|NAN))$''', re.X),
-        list(u'-+0123456789.'))
-
-Resolver.add_implicit_resolver(
-        u'tag:yaml.org,2002:int',
-        re.compile(ur'''^(?:[-+]?0b[0-1_]+
-                    |[-+]?0[0-7_]+
-                    |[-+]?(?:0|[1-9][0-9_]*)
-                    |[-+]?0x[0-9a-fA-F_]+
-                    |[-+]?[1-9][0-9_]*(?::[0-5]?[0-9])+)$''', re.X),
-        list(u'-+0123456789'))
-
-Resolver.add_implicit_resolver(
-        u'tag:yaml.org,2002:merge',
-        re.compile(ur'^(?:<<)$'),
-        [u'<'])
-
-Resolver.add_implicit_resolver(
-        u'tag:yaml.org,2002:null',
-        re.compile(ur'''^(?: ~
-                    |null|Null|NULL
-                    | )$''', re.X),
-        [u'~', u'n', u'N', u''])
-
-Resolver.add_implicit_resolver(
-        u'tag:yaml.org,2002:timestamp',
-        re.compile(ur'''^(?:[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]
-                    |[0-9][0-9][0-9][0-9] -[0-9][0-9]? -[0-9][0-9]?
-                     (?:[Tt]|[ \t]+)[0-9][0-9]?
-                     :[0-9][0-9] :[0-9][0-9] (?:\.[0-9]*)?
-                     (?:[ \t]*(?:Z|[-+][0-9][0-9]?(?::[0-9][0-9])?))?)$''', re.X),
-        list(u'0123456789'))
-
-Resolver.add_implicit_resolver(
-        u'tag:yaml.org,2002:value',
-        re.compile(ur'^(?:=)$'),
-        [u'='])
-
-# The following resolver is only for documentation purposes. It cannot work
-# because plain scalars cannot start with '!', '&', or '*'.
-Resolver.add_implicit_resolver(
-        u'tag:yaml.org,2002:yaml',
-        re.compile(ur'^(?:!|&|\*)$'),
-        list(u'!&*'))
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/scanner.py b/collectors/python.d.plugin/python_modules/pyyaml2/scanner.py
deleted file mode 100644
index 971da6127..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/scanner.py
+++ /dev/null
@@ -1,1458 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-# Scanner produces tokens of the following types:
-# STREAM-START
-# STREAM-END
-# DIRECTIVE(name, value)
-# DOCUMENT-START
-# DOCUMENT-END
-# BLOCK-SEQUENCE-START
-# BLOCK-MAPPING-START
-# BLOCK-END
-# FLOW-SEQUENCE-START
-# FLOW-MAPPING-START
-# FLOW-SEQUENCE-END
-# FLOW-MAPPING-END
-# BLOCK-ENTRY
-# FLOW-ENTRY
-# KEY
-# VALUE
-# ALIAS(value)
-# ANCHOR(value)
-# TAG(value)
-# SCALAR(value, plain, style)
-#
-# Read comments in the Scanner code for more details.
-#
-
-__all__ = ['Scanner', 'ScannerError']
-
-from error import MarkedYAMLError
-from tokens import *
-
-class ScannerError(MarkedYAMLError):
-    pass
-
-class SimpleKey(object):
-    # See below simple keys treatment.
-
-    def __init__(self, token_number, required, index, line, column, mark):
-        self.token_number = token_number
-        self.required = required
-        self.index = index
-        self.line = line
-        self.column = column
-        self.mark = mark
-
-class Scanner(object):
-
-    def __init__(self):
-        """Initialize the scanner."""
-        # It is assumed that Scanner and Reader will have a common descendant.
-        # Reader do the dirty work of checking for BOM and converting the
-        # input data to Unicode. It also adds NUL to the end.
-        #
-        # Reader supports the following methods
-        #   self.peek(i=0)       # peek the next i-th character
-        #   self.prefix(l=1)     # peek the next l characters
-        #   self.forward(l=1)    # read the next l characters and move the pointer.
-
-        # Had we reached the end of the stream?
-        self.done = False
-
-        # The number of unclosed '{' and '['. `flow_level == 0` means block
-        # context.
-        self.flow_level = 0
-
-        # List of processed tokens that are not yet emitted.
-        self.tokens = []
-
-        # Add the STREAM-START token.
-        self.fetch_stream_start()
-
-        # Number of tokens that were emitted through the `get_token` method.
-        self.tokens_taken = 0
-
-        # The current indentation level.
-        self.indent = -1
-
-        # Past indentation levels.
-        self.indents = []
-
-        # Variables related to simple keys treatment.
-
-        # A simple key is a key that is not denoted by the '?' indicator.
-        # Example of simple keys:
-        #   ---
-        #   block simple key: value
-        #   ? not a simple key:
-        #   : { flow simple key: value }
-        # We emit the KEY token before all keys, so when we find a potential
-        # simple key, we try to locate the corresponding ':' indicator.
-        # Simple keys should be limited to a single line and 1024 characters.
-
-        # Can a simple key start at the current position? A simple key may
-        # start:
-        # - at the beginning of the line, not counting indentation spaces
-        #       (in block context),
-        # - after '{', '[', ',' (in the flow context),
-        # - after '?', ':', '-' (in the block context).
-        # In the block context, this flag also signifies if a block collection
-        # may start at the current position.
-        self.allow_simple_key = True
-
-        # Keep track of possible simple keys. This is a dictionary. The key
-        # is `flow_level`; there can be no more that one possible simple key
-        # for each level. The value is a SimpleKey record:
-        #   (token_number, required, index, line, column, mark)
-        # A simple key may start with ALIAS, ANCHOR, TAG, SCALAR(flow),
-        # '[', or '{' tokens.
-        self.possible_simple_keys = {}
-
-    # Public methods.
-
-    def check_token(self, *choices):
-        # Check if the next token is one of the given types.
-        while self.need_more_tokens():
-            self.fetch_more_tokens()
-        if self.tokens:
-            if not choices:
-                return True
-            for choice in choices:
-                if isinstance(self.tokens[0], choice):
-                    return True
-        return False
-
-    def peek_token(self):
-        # Return the next token, but do not delete if from the queue.
-        while self.need_more_tokens():
-            self.fetch_more_tokens()
-        if self.tokens:
-            return self.tokens[0]
-
-    def get_token(self):
-        # Return the next token.
-        while self.need_more_tokens():
-            self.fetch_more_tokens()
-        if self.tokens:
-            self.tokens_taken += 1
-            return self.tokens.pop(0)
-
-    # Private methods.
-
-    def need_more_tokens(self):
-        if self.done:
-            return False
-        if not self.tokens:
-            return True
-        # The current token may be a potential simple key, so we
-        # need to look further.
-        self.stale_possible_simple_keys()
-        if self.next_possible_simple_key() == self.tokens_taken:
-            return True
-
-    def fetch_more_tokens(self):
-
-        # Eat whitespaces and comments until we reach the next token.
-        self.scan_to_next_token()
-
-        # Remove obsolete possible simple keys.
-        self.stale_possible_simple_keys()
-
-        # Compare the current indentation and column. It may add some tokens
-        # and decrease the current indentation level.
-        self.unwind_indent(self.column)
-
-        # Peek the next character.
-        ch = self.peek()
-
-        # Is it the end of stream?
-        if ch == u'\0':
-            return self.fetch_stream_end()
-
-        # Is it a directive?
-        if ch == u'%' and self.check_directive():
-            return self.fetch_directive()
-
-        # Is it the document start?
-        if ch == u'-' and self.check_document_start():
-            return self.fetch_document_start()
-
-        # Is it the document end?
-        if ch == u'.' and self.check_document_end():
-            return self.fetch_document_end()
-
-        # TODO: support for BOM within a stream.
-        #if ch == u'\uFEFF':
-        #    return self.fetch_bom()    <-- issue BOMToken
-
-        # Note: the order of the following checks is NOT significant.
-
-        # Is it the flow sequence start indicator?
-        if ch == u'[':
-            return self.fetch_flow_sequence_start()
-
-        # Is it the flow mapping start indicator?
-        if ch == u'{':
-            return self.fetch_flow_mapping_start()
-
-        # Is it the flow sequence end indicator?
-        if ch == u']':
-            return self.fetch_flow_sequence_end()
-
-        # Is it the flow mapping end indicator?
-        if ch == u'}':
-            return self.fetch_flow_mapping_end()
-
-        # Is it the flow entry indicator?
-        if ch == u',':
-            return self.fetch_flow_entry()
-
-        # Is it the block entry indicator?
-        if ch == u'-' and self.check_block_entry():
-            return self.fetch_block_entry()
-
-        # Is it the key indicator?
-        if ch == u'?' and self.check_key():
-            return self.fetch_key()
-
-        # Is it the value indicator?
-        if ch == u':' and self.check_value():
-            return self.fetch_value()
-
-        # Is it an alias?
-        if ch == u'*':
-            return self.fetch_alias()
-
-        # Is it an anchor?
-        if ch == u'&':
-            return self.fetch_anchor()
-
-        # Is it a tag?
-        if ch == u'!':
-            return self.fetch_tag()
-
-        # Is it a literal scalar?
-        if ch == u'|' and not self.flow_level:
-            return self.fetch_literal()
-
-        # Is it a folded scalar?
-        if ch == u'>' and not self.flow_level:
-            return self.fetch_folded()
-
-        # Is it a single quoted scalar?
-        if ch == u'\'':
-            return self.fetch_single()
-
-        # Is it a double quoted scalar?
-        if ch == u'\"':
-            return self.fetch_double()
-
-        # It must be a plain scalar then.
-        if self.check_plain():
-            return self.fetch_plain()
-
-        # No? It's an error. Let's produce a nice error message.
-        raise ScannerError("while scanning for the next token", None,
-                "found character %r that cannot start any token"
-                % ch.encode('utf-8'), self.get_mark())
-
-    # Simple keys treatment.
-
-    def next_possible_simple_key(self):
-        # Return the number of the nearest possible simple key. Actually we
-        # don't need to loop through the whole dictionary. We may replace it
-        # with the following code:
-        #   if not self.possible_simple_keys:
-        #       return None
-        #   return self.possible_simple_keys[
-        #           min(self.possible_simple_keys.keys())].token_number
-        min_token_number = None
-        for level in self.possible_simple_keys:
-            key = self.possible_simple_keys[level]
-            if min_token_number is None or key.token_number < min_token_number:
-                min_token_number = key.token_number
-        return min_token_number
-
-    def stale_possible_simple_keys(self):
-        # Remove entries that are no longer possible simple keys. According to
-        # the YAML specification, simple keys
-        # - should be limited to a single line,
-        # - should be no longer than 1024 characters.
-        # Disabling this procedure will allow simple keys of any length and
-        # height (may cause problems if indentation is broken though).
-        for level in self.possible_simple_keys.keys():
-            key = self.possible_simple_keys[level]
-            if key.line != self.line  \
-                    or self.index-key.index > 1024:
-                if key.required:
-                    raise ScannerError("while scanning a simple key", key.mark,
-                            "could not found expected ':'", self.get_mark())
-                del self.possible_simple_keys[level]
-
-    def save_possible_simple_key(self):
-        # The next token may start a simple key. We check if it's possible
-        # and save its position. This function is called for
-        #   ALIAS, ANCHOR, TAG, SCALAR(flow), '[', and '{'.
-
-        # Check if a simple key is required at the current position.
-        required = not self.flow_level and self.indent == self.column
-
-        # A simple key is required only if it is the first token in the current
-        # line. Therefore it is always allowed.
-        assert self.allow_simple_key or not required
-
-        # The next token might be a simple key. Let's save it's number and
-        # position.
-        if self.allow_simple_key:
-            self.remove_possible_simple_key()
-            token_number = self.tokens_taken+len(self.tokens)
-            key = SimpleKey(token_number, required,
-                    self.index, self.line, self.column, self.get_mark())
-            self.possible_simple_keys[self.flow_level] = key
-
-    def remove_possible_simple_key(self):
-        # Remove the saved possible key position at the current flow level.
-        if self.flow_level in self.possible_simple_keys:
-            key = self.possible_simple_keys[self.flow_level]
-            
-            if key.required:
-                raise ScannerError("while scanning a simple key", key.mark,
-                        "could not found expected ':'", self.get_mark())
-
-            del self.possible_simple_keys[self.flow_level]
-
-    # Indentation functions.
-
-    def unwind_indent(self, column):
-
-        ## In flow context, tokens should respect indentation.
-        ## Actually the condition should be `self.indent >= column` according to
-        ## the spec. But this condition will prohibit intuitively correct
-        ## constructions such as
-        ## key : {
-        ## }
-        #if self.flow_level and self.indent > column:
-        #    raise ScannerError(None, None,
-        #            "invalid intendation or unclosed '[' or '{'",
-        #            self.get_mark())
-
-        # In the flow context, indentation is ignored. We make the scanner less
-        # restrictive then specification requires.
-        if self.flow_level:
-            return
-
-        # In block context, we may need to issue the BLOCK-END tokens.
-        while self.indent > column:
-            mark = self.get_mark()
-            self.indent = self.indents.pop()
-            self.tokens.append(BlockEndToken(mark, mark))
-
-    def add_indent(self, column):
-        # Check if we need to increase indentation.
-        if self.indent < column:
-            self.indents.append(self.indent)
-            self.indent = column
-            return True
-        return False
-
-    # Fetchers.
-
-    def fetch_stream_start(self):
-        # We always add STREAM-START as the first token and STREAM-END as the
-        # last token.
-
-        # Read the token.
-        mark = self.get_mark()
-        
-        # Add STREAM-START.
-        self.tokens.append(StreamStartToken(mark, mark,
-            encoding=self.encoding))
-        
-
-    def fetch_stream_end(self):
-
-        # Set the current intendation to -1.
-        self.unwind_indent(-1)
-
-        # Reset simple keys.
-        self.remove_possible_simple_key()
-        self.allow_simple_key = False
-        self.possible_simple_keys = {}
-
-        # Read the token.
-        mark = self.get_mark()
-        
-        # Add STREAM-END.
-        self.tokens.append(StreamEndToken(mark, mark))
-
-        # The steam is finished.
-        self.done = True
-
-    def fetch_directive(self):
-        
-        # Set the current intendation to -1.
-        self.unwind_indent(-1)
-
-        # Reset simple keys.
-        self.remove_possible_simple_key()
-        self.allow_simple_key = False
-
-        # Scan and add DIRECTIVE.
-        self.tokens.append(self.scan_directive())
-
-    def fetch_document_start(self):
-        self.fetch_document_indicator(DocumentStartToken)
-
-    def fetch_document_end(self):
-        self.fetch_document_indicator(DocumentEndToken)
-
-    def fetch_document_indicator(self, TokenClass):
-
-        # Set the current intendation to -1.
-        self.unwind_indent(-1)
-
-        # Reset simple keys. Note that there could not be a block collection
-        # after '---'.
-        self.remove_possible_simple_key()
-        self.allow_simple_key = False
-
-        # Add DOCUMENT-START or DOCUMENT-END.
-        start_mark = self.get_mark()
-        self.forward(3)
-        end_mark = self.get_mark()
-        self.tokens.append(TokenClass(start_mark, end_mark))
-
-    def fetch_flow_sequence_start(self):
-        self.fetch_flow_collection_start(FlowSequenceStartToken)
-
-    def fetch_flow_mapping_start(self):
-        self.fetch_flow_collection_start(FlowMappingStartToken)
-
-    def fetch_flow_collection_start(self, TokenClass):
-
-        # '[' and '{' may start a simple key.
-        self.save_possible_simple_key()
-
-        # Increase the flow level.
-        self.flow_level += 1
-
-        # Simple keys are allowed after '[' and '{'.
-        self.allow_simple_key = True
-
-        # Add FLOW-SEQUENCE-START or FLOW-MAPPING-START.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(TokenClass(start_mark, end_mark))
-
-    def fetch_flow_sequence_end(self):
-        self.fetch_flow_collection_end(FlowSequenceEndToken)
-
-    def fetch_flow_mapping_end(self):
-        self.fetch_flow_collection_end(FlowMappingEndToken)
-
-    def fetch_flow_collection_end(self, TokenClass):
-
-        # Reset possible simple key on the current level.
-        self.remove_possible_simple_key()
-
-        # Decrease the flow level.
-        self.flow_level -= 1
-
-        # No simple keys after ']' or '}'.
-        self.allow_simple_key = False
-
-        # Add FLOW-SEQUENCE-END or FLOW-MAPPING-END.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(TokenClass(start_mark, end_mark))
-
-    def fetch_flow_entry(self):
-
-        # Simple keys are allowed after ','.
-        self.allow_simple_key = True
-
-        # Reset possible simple key on the current level.
-        self.remove_possible_simple_key()
-
-        # Add FLOW-ENTRY.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(FlowEntryToken(start_mark, end_mark))
-
-    def fetch_block_entry(self):
-
-        # Block context needs additional checks.
-        if not self.flow_level:
-
-            # Are we allowed to start a new entry?
-            if not self.allow_simple_key:
-                raise ScannerError(None, None,
-                        "sequence entries are not allowed here",
-                        self.get_mark())
-
-            # We may need to add BLOCK-SEQUENCE-START.
-            if self.add_indent(self.column):
-                mark = self.get_mark()
-                self.tokens.append(BlockSequenceStartToken(mark, mark))
-
-        # It's an error for the block entry to occur in the flow context,
-        # but we let the parser detect this.
-        else:
-            pass
-
-        # Simple keys are allowed after '-'.
-        self.allow_simple_key = True
-
-        # Reset possible simple key on the current level.
-        self.remove_possible_simple_key()
-
-        # Add BLOCK-ENTRY.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(BlockEntryToken(start_mark, end_mark))
-
-    def fetch_key(self):
-        
-        # Block context needs additional checks.
-        if not self.flow_level:
-
-            # Are we allowed to start a key (not nessesary a simple)?
-            if not self.allow_simple_key:
-                raise ScannerError(None, None,
-                        "mapping keys are not allowed here",
-                        self.get_mark())
-
-            # We may need to add BLOCK-MAPPING-START.
-            if self.add_indent(self.column):
-                mark = self.get_mark()
-                self.tokens.append(BlockMappingStartToken(mark, mark))
-
-        # Simple keys are allowed after '?' in the block context.
-        self.allow_simple_key = not self.flow_level
-
-        # Reset possible simple key on the current level.
-        self.remove_possible_simple_key()
-
-        # Add KEY.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(KeyToken(start_mark, end_mark))
-
-    def fetch_value(self):
-
-        # Do we determine a simple key?
-        if self.flow_level in self.possible_simple_keys:
-
-            # Add KEY.
-            key = self.possible_simple_keys[self.flow_level]
-            del self.possible_simple_keys[self.flow_level]
-            self.tokens.insert(key.token_number-self.tokens_taken,
-                    KeyToken(key.mark, key.mark))
-
-            # If this key starts a new block mapping, we need to add
-            # BLOCK-MAPPING-START.
-            if not self.flow_level:
-                if self.add_indent(key.column):
-                    self.tokens.insert(key.token_number-self.tokens_taken,
-                            BlockMappingStartToken(key.mark, key.mark))
-
-            # There cannot be two simple keys one after another.
-            self.allow_simple_key = False
-
-        # It must be a part of a complex key.
-        else:
-            
-            # Block context needs additional checks.
-            # (Do we really need them? They will be catched by the parser
-            # anyway.)
-            if not self.flow_level:
-
-                # We are allowed to start a complex value if and only if
-                # we can start a simple key.
-                if not self.allow_simple_key:
-                    raise ScannerError(None, None,
-                            "mapping values are not allowed here",
-                            self.get_mark())
-
-            # If this value starts a new block mapping, we need to add
-            # BLOCK-MAPPING-START.  It will be detected as an error later by
-            # the parser.
-            if not self.flow_level:
-                if self.add_indent(self.column):
-                    mark = self.get_mark()
-                    self.tokens.append(BlockMappingStartToken(mark, mark))
-
-            # Simple keys are allowed after ':' in the block context.
-            self.allow_simple_key = not self.flow_level
-
-            # Reset possible simple key on the current level.
-            self.remove_possible_simple_key()
-
-        # Add VALUE.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(ValueToken(start_mark, end_mark))
-
-    def fetch_alias(self):
-
-        # ALIAS could be a simple key.
-        self.save_possible_simple_key()
-
-        # No simple keys after ALIAS.
-        self.allow_simple_key = False
-
-        # Scan and add ALIAS.
-        self.tokens.append(self.scan_anchor(AliasToken))
-
-    def fetch_anchor(self):
-
-        # ANCHOR could start a simple key.
-        self.save_possible_simple_key()
-
-        # No simple keys after ANCHOR.
-        self.allow_simple_key = False
-
-        # Scan and add ANCHOR.
-        self.tokens.append(self.scan_anchor(AnchorToken))
-
-    def fetch_tag(self):
-
-        # TAG could start a simple key.
-        self.save_possible_simple_key()
-
-        # No simple keys after TAG.
-        self.allow_simple_key = False
-
-        # Scan and add TAG.
-        self.tokens.append(self.scan_tag())
-
-    def fetch_literal(self):
-        self.fetch_block_scalar(style='|')
-
-    def fetch_folded(self):
-        self.fetch_block_scalar(style='>')
-
-    def fetch_block_scalar(self, style):
-
-        # A simple key may follow a block scalar.
-        self.allow_simple_key = True
-
-        # Reset possible simple key on the current level.
-        self.remove_possible_simple_key()
-
-        # Scan and add SCALAR.
-        self.tokens.append(self.scan_block_scalar(style))
-
-    def fetch_single(self):
-        self.fetch_flow_scalar(style='\'')
-
-    def fetch_double(self):
-        self.fetch_flow_scalar(style='"')
-
-    def fetch_flow_scalar(self, style):
-
-        # A flow scalar could be a simple key.
-        self.save_possible_simple_key()
-
-        # No simple keys after flow scalars.
-        self.allow_simple_key = False
-
-        # Scan and add SCALAR.
-        self.tokens.append(self.scan_flow_scalar(style))
-
-    def fetch_plain(self):
-
-        # A plain scalar could be a simple key.
-        self.save_possible_simple_key()
-
-        # No simple keys after plain scalars. But note that `scan_plain` will
-        # change this flag if the scan is finished at the beginning of the
-        # line.
-        self.allow_simple_key = False
-
-        # Scan and add SCALAR. May change `allow_simple_key`.
-        self.tokens.append(self.scan_plain())
-
-    # Checkers.
-
-    def check_directive(self):
-
-        # DIRECTIVE:        ^ '%' ...
-        # The '%' indicator is already checked.
-        if self.column == 0:
-            return True
-
-    def check_document_start(self):
-
-        # DOCUMENT-START:   ^ '---' (' '|'\n')
-        if self.column == 0:
-            if self.prefix(3) == u'---'  \
-                    and self.peek(3) in u'\0 \t\r\n\x85\u2028\u2029':
-                return True
-
-    def check_document_end(self):
-
-        # DOCUMENT-END:     ^ '...' (' '|'\n')
-        if self.column == 0:
-            if self.prefix(3) == u'...'  \
-                    and self.peek(3) in u'\0 \t\r\n\x85\u2028\u2029':
-                return True
-
-    def check_block_entry(self):
-
-        # BLOCK-ENTRY:      '-' (' '|'\n')
-        return self.peek(1) in u'\0 \t\r\n\x85\u2028\u2029'
-
-    def check_key(self):
-
-        # KEY(flow context):    '?'
-        if self.flow_level:
-            return True
-
-        # KEY(block context):   '?' (' '|'\n')
-        else:
-            return self.peek(1) in u'\0 \t\r\n\x85\u2028\u2029'
-
-    def check_value(self):
-
-        # VALUE(flow context):  ':'
-        if self.flow_level:
-            return True
-
-        # VALUE(block context): ':' (' '|'\n')
-        else:
-            return self.peek(1) in u'\0 \t\r\n\x85\u2028\u2029'
-
-    def check_plain(self):
-
-        # A plain scalar may start with any non-space character except:
-        #   '-', '?', ':', ',', '[', ']', '{', '}',
-        #   '#', '&', '*', '!', '|', '>', '\'', '\"',
-        #   '%', '@', '`'.
-        #
-        # It may also start with
-        #   '-', '?', ':'
-        # if it is followed by a non-space character.
-        #
-        # Note that we limit the last rule to the block context (except the
-        # '-' character) because we want the flow context to be space
-        # independent.
-        ch = self.peek()
-        return ch not in u'\0 \t\r\n\x85\u2028\u2029-?:,[]{}#&*!|>\'\"%@`'  \
-                or (self.peek(1) not in u'\0 \t\r\n\x85\u2028\u2029'
-                        and (ch == u'-' or (not self.flow_level and ch in u'?:')))
-
-    # Scanners.
-
-    def scan_to_next_token(self):
-        # We ignore spaces, line breaks and comments.
-        # If we find a line break in the block context, we set the flag
-        # `allow_simple_key` on.
-        # The byte order mark is stripped if it's the first character in the
-        # stream. We do not yet support BOM inside the stream as the
-        # specification requires. Any such mark will be considered as a part
-        # of the document.
-        #
-        # TODO: We need to make tab handling rules more sane. A good rule is
-        #   Tabs cannot precede tokens
-        #   BLOCK-SEQUENCE-START, BLOCK-MAPPING-START, BLOCK-END,
-        #   KEY(block), VALUE(block), BLOCK-ENTRY
-        # So the checking code is
-        #   if <TAB>:
-        #       self.allow_simple_keys = False
-        # We also need to add the check for `allow_simple_keys == True` to
-        # `unwind_indent` before issuing BLOCK-END.
-        # Scanners for block, flow, and plain scalars need to be modified.
-
-        if self.index == 0 and self.peek() == u'\uFEFF':
-            self.forward()
-        found = False
-        while not found:
-            while self.peek() == u' ':
-                self.forward()
-            if self.peek() == u'#':
-                while self.peek() not in u'\0\r\n\x85\u2028\u2029':
-                    self.forward()
-            if self.scan_line_break():
-                if not self.flow_level:
-                    self.allow_simple_key = True
-            else:
-                found = True
-
-    def scan_directive(self):
-        # See the specification for details.
-        start_mark = self.get_mark()
-        self.forward()
-        name = self.scan_directive_name(start_mark)
-        value = None
-        if name == u'YAML':
-            value = self.scan_yaml_directive_value(start_mark)
-            end_mark = self.get_mark()
-        elif name == u'TAG':
-            value = self.scan_tag_directive_value(start_mark)
-            end_mark = self.get_mark()
-        else:
-            end_mark = self.get_mark()
-            while self.peek() not in u'\0\r\n\x85\u2028\u2029':
-                self.forward()
-        self.scan_directive_ignored_line(start_mark)
-        return DirectiveToken(name, value, start_mark, end_mark)
-
-    def scan_directive_name(self, start_mark):
-        # See the specification for details.
-        length = 0
-        ch = self.peek(length)
-        while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'    \
-                or ch in u'-_':
-            length += 1
-            ch = self.peek(length)
-        if not length:
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected alphabetic or numeric character, but found %r"
-                    % ch.encode('utf-8'), self.get_mark())
-        value = self.prefix(length)
-        self.forward(length)
-        ch = self.peek()
-        if ch not in u'\0 \r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected alphabetic or numeric character, but found %r"
-                    % ch.encode('utf-8'), self.get_mark())
-        return value
-
-    def scan_yaml_directive_value(self, start_mark):
-        # See the specification for details.
-        while self.peek() == u' ':
-            self.forward()
-        major = self.scan_yaml_directive_number(start_mark)
-        if self.peek() != '.':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected a digit or '.', but found %r"
-                    % self.peek().encode('utf-8'),
-                    self.get_mark())
-        self.forward()
-        minor = self.scan_yaml_directive_number(start_mark)
-        if self.peek() not in u'\0 \r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected a digit or ' ', but found %r"
-                    % self.peek().encode('utf-8'),
-                    self.get_mark())
-        return (major, minor)
-
-    def scan_yaml_directive_number(self, start_mark):
-        # See the specification for details.
-        ch = self.peek()
-        if not (u'0' <= ch <= u'9'):
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected a digit, but found %r" % ch.encode('utf-8'),
-                    self.get_mark())
-        length = 0
-        while u'0' <= self.peek(length) <= u'9':
-            length += 1
-        value = int(self.prefix(length))
-        self.forward(length)
-        return value
-
-    def scan_tag_directive_value(self, start_mark):
-        # See the specification for details.
-        while self.peek() == u' ':
-            self.forward()
-        handle = self.scan_tag_directive_handle(start_mark)
-        while self.peek() == u' ':
-            self.forward()
-        prefix = self.scan_tag_directive_prefix(start_mark)
-        return (handle, prefix)
-
-    def scan_tag_directive_handle(self, start_mark):
-        # See the specification for details.
-        value = self.scan_tag_handle('directive', start_mark)
-        ch = self.peek()
-        if ch != u' ':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected ' ', but found %r" % ch.encode('utf-8'),
-                    self.get_mark())
-        return value
-
-    def scan_tag_directive_prefix(self, start_mark):
-        # See the specification for details.
-        value = self.scan_tag_uri('directive', start_mark)
-        ch = self.peek()
-        if ch not in u'\0 \r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected ' ', but found %r" % ch.encode('utf-8'),
-                    self.get_mark())
-        return value
-
-    def scan_directive_ignored_line(self, start_mark):
-        # See the specification for details.
-        while self.peek() == u' ':
-            self.forward()
-        if self.peek() == u'#':
-            while self.peek() not in u'\0\r\n\x85\u2028\u2029':
-                self.forward()
-        ch = self.peek()
-        if ch not in u'\0\r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected a comment or a line break, but found %r"
-                        % ch.encode('utf-8'), self.get_mark())
-        self.scan_line_break()
-
-    def scan_anchor(self, TokenClass):
-        # The specification does not restrict characters for anchors and
-        # aliases. This may lead to problems, for instance, the document:
-        #   [ *alias, value ]
-        # can be interpteted in two ways, as
-        #   [ "value" ]
-        # and
-        #   [ *alias , "value" ]
-        # Therefore we restrict aliases to numbers and ASCII letters.
-        start_mark = self.get_mark()
-        indicator = self.peek()
-        if indicator == u'*':
-            name = 'alias'
-        else:
-            name = 'anchor'
-        self.forward()
-        length = 0
-        ch = self.peek(length)
-        while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'    \
-                or ch in u'-_':
-            length += 1
-            ch = self.peek(length)
-        if not length:
-            raise ScannerError("while scanning an %s" % name, start_mark,
-                    "expected alphabetic or numeric character, but found %r"
-                    % ch.encode('utf-8'), self.get_mark())
-        value = self.prefix(length)
-        self.forward(length)
-        ch = self.peek()
-        if ch not in u'\0 \t\r\n\x85\u2028\u2029?:,]}%@`':
-            raise ScannerError("while scanning an %s" % name, start_mark,
-                    "expected alphabetic or numeric character, but found %r"
-                    % ch.encode('utf-8'), self.get_mark())
-        end_mark = self.get_mark()
-        return TokenClass(value, start_mark, end_mark)
-
-    def scan_tag(self):
-        # See the specification for details.
-        start_mark = self.get_mark()
-        ch = self.peek(1)
-        if ch == u'<':
-            handle = None
-            self.forward(2)
-            suffix = self.scan_tag_uri('tag', start_mark)
-            if self.peek() != u'>':
-                raise ScannerError("while parsing a tag", start_mark,
-                        "expected '>', but found %r" % self.peek().encode('utf-8'),
-                        self.get_mark())
-            self.forward()
-        elif ch in u'\0 \t\r\n\x85\u2028\u2029':
-            handle = None
-            suffix = u'!'
-            self.forward()
-        else:
-            length = 1
-            use_handle = False
-            while ch not in u'\0 \r\n\x85\u2028\u2029':
-                if ch == u'!':
-                    use_handle = True
-                    break
-                length += 1
-                ch = self.peek(length)
-            handle = u'!'
-            if use_handle:
-                handle = self.scan_tag_handle('tag', start_mark)
-            else:
-                handle = u'!'
-                self.forward()
-            suffix = self.scan_tag_uri('tag', start_mark)
-        ch = self.peek()
-        if ch not in u'\0 \r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a tag", start_mark,
-                    "expected ' ', but found %r" % ch.encode('utf-8'),
-                    self.get_mark())
-        value = (handle, suffix)
-        end_mark = self.get_mark()
-        return TagToken(value, start_mark, end_mark)
-
-    def scan_block_scalar(self, style):
-        # See the specification for details.
-
-        if style == '>':
-            folded = True
-        else:
-            folded = False
-
-        chunks = []
-        start_mark = self.get_mark()
-
-        # Scan the header.
-        self.forward()
-        chomping, increment = self.scan_block_scalar_indicators(start_mark)
-        self.scan_block_scalar_ignored_line(start_mark)
-
-        # Determine the indentation level and go to the first non-empty line.
-        min_indent = self.indent+1
-        if min_indent < 1:
-            min_indent = 1
-        if increment is None:
-            breaks, max_indent, end_mark = self.scan_block_scalar_indentation()
-            indent = max(min_indent, max_indent)
-        else:
-            indent = min_indent+increment-1
-            breaks, end_mark = self.scan_block_scalar_breaks(indent)
-        line_break = u''
-
-        # Scan the inner part of the block scalar.
-        while self.column == indent and self.peek() != u'\0':
-            chunks.extend(breaks)
-            leading_non_space = self.peek() not in u' \t'
-            length = 0
-            while self.peek(length) not in u'\0\r\n\x85\u2028\u2029':
-                length += 1
-            chunks.append(self.prefix(length))
-            self.forward(length)
-            line_break = self.scan_line_break()
-            breaks, end_mark = self.scan_block_scalar_breaks(indent)
-            if self.column == indent and self.peek() != u'\0':
-
-                # Unfortunately, folding rules are ambiguous.
-                #
-                # This is the folding according to the specification:
-                
-                if folded and line_break == u'\n'   \
-                        and leading_non_space and self.peek() not in u' \t':
-                    if not breaks:
-                        chunks.append(u' ')
-                else:
-                    chunks.append(line_break)
-                
-                # This is Clark Evans's interpretation (also in the spec
-                # examples):
-                #
-                #if folded and line_break == u'\n':
-                #    if not breaks:
-                #        if self.peek() not in ' \t':
-                #            chunks.append(u' ')
-                #        else:
-                #            chunks.append(line_break)
-                #else:
-                #    chunks.append(line_break)
-            else:
-                break
-
-        # Chomp the tail.
-        if chomping is not False:
-            chunks.append(line_break)
-        if chomping is True:
-            chunks.extend(breaks)
-
-        # We are done.
-        return ScalarToken(u''.join(chunks), False, start_mark, end_mark,
-                style)
-
-    def scan_block_scalar_indicators(self, start_mark):
-        # See the specification for details.
-        chomping = None
-        increment = None
-        ch = self.peek()
-        if ch in u'+-':
-            if ch == '+':
-                chomping = True
-            else:
-                chomping = False
-            self.forward()
-            ch = self.peek()
-            if ch in u'0123456789':
-                increment = int(ch)
-                if increment == 0:
-                    raise ScannerError("while scanning a block scalar", start_mark,
-                            "expected indentation indicator in the range 1-9, but found 0",
-                            self.get_mark())
-                self.forward()
-        elif ch in u'0123456789':
-            increment = int(ch)
-            if increment == 0:
-                raise ScannerError("while scanning a block scalar", start_mark,
-                        "expected indentation indicator in the range 1-9, but found 0",
-                        self.get_mark())
-            self.forward()
-            ch = self.peek()
-            if ch in u'+-':
-                if ch == '+':
-                    chomping = True
-                else:
-                    chomping = False
-                self.forward()
-        ch = self.peek()
-        if ch not in u'\0 \r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a block scalar", start_mark,
-                    "expected chomping or indentation indicators, but found %r"
-                        % ch.encode('utf-8'), self.get_mark())
-        return chomping, increment
-
-    def scan_block_scalar_ignored_line(self, start_mark):
-        # See the specification for details.
-        while self.peek() == u' ':
-            self.forward()
-        if self.peek() == u'#':
-            while self.peek() not in u'\0\r\n\x85\u2028\u2029':
-                self.forward()
-        ch = self.peek()
-        if ch not in u'\0\r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a block scalar", start_mark,
-                    "expected a comment or a line break, but found %r"
-                        % ch.encode('utf-8'), self.get_mark())
-        self.scan_line_break()
-
-    def scan_block_scalar_indentation(self):
-        # See the specification for details.
-        chunks = []
-        max_indent = 0
-        end_mark = self.get_mark()
-        while self.peek() in u' \r\n\x85\u2028\u2029':
-            if self.peek() != u' ':
-                chunks.append(self.scan_line_break())
-                end_mark = self.get_mark()
-            else:
-                self.forward()
-                if self.column > max_indent:
-                    max_indent = self.column
-        return chunks, max_indent, end_mark
-
-    def scan_block_scalar_breaks(self, indent):
-        # See the specification for details.
-        chunks = []
-        end_mark = self.get_mark()
-        while self.column < indent and self.peek() == u' ':
-            self.forward()
-        while self.peek() in u'\r\n\x85\u2028\u2029':
-            chunks.append(self.scan_line_break())
-            end_mark = self.get_mark()
-            while self.column < indent and self.peek() == u' ':
-                self.forward()
-        return chunks, end_mark
-
-    def scan_flow_scalar(self, style):
-        # See the specification for details.
-        # Note that we loose indentation rules for quoted scalars. Quoted
-        # scalars don't need to adhere indentation because " and ' clearly
-        # mark the beginning and the end of them. Therefore we are less
-        # restrictive then the specification requires. We only need to check
-        # that document separators are not included in scalars.
-        if style == '"':
-            double = True
-        else:
-            double = False
-        chunks = []
-        start_mark = self.get_mark()
-        quote = self.peek()
-        self.forward()
-        chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
-        while self.peek() != quote:
-            chunks.extend(self.scan_flow_scalar_spaces(double, start_mark))
-            chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
-        self.forward()
-        end_mark = self.get_mark()
-        return ScalarToken(u''.join(chunks), False, start_mark, end_mark,
-                style)
-
-    ESCAPE_REPLACEMENTS = {
-        u'0':   u'\0',
-        u'a':   u'\x07',
-        u'b':   u'\x08',
-        u't':   u'\x09',
-        u'\t':  u'\x09',
-        u'n':   u'\x0A',
-        u'v':   u'\x0B',
-        u'f':   u'\x0C',
-        u'r':   u'\x0D',
-        u'e':   u'\x1B',
-        u' ':   u'\x20',
-        u'\"':  u'\"',
-        u'\\':  u'\\',
-        u'N':   u'\x85',
-        u'_':   u'\xA0',
-        u'L':   u'\u2028',
-        u'P':   u'\u2029',
-    }
-
-    ESCAPE_CODES = {
-        u'x':   2,
-        u'u':   4,
-        u'U':   8,
-    }
-
-    def scan_flow_scalar_non_spaces(self, double, start_mark):
-        # See the specification for details.
-        chunks = []
-        while True:
-            length = 0
-            while self.peek(length) not in u'\'\"\\\0 \t\r\n\x85\u2028\u2029':
-                length += 1
-            if length:
-                chunks.append(self.prefix(length))
-                self.forward(length)
-            ch = self.peek()
-            if not double and ch == u'\'' and self.peek(1) == u'\'':
-                chunks.append(u'\'')
-                self.forward(2)
-            elif (double and ch == u'\'') or (not double and ch in u'\"\\'):
-                chunks.append(ch)
-                self.forward()
-            elif double and ch == u'\\':
-                self.forward()
-                ch = self.peek()
-                if ch in self.ESCAPE_REPLACEMENTS:
-                    chunks.append(self.ESCAPE_REPLACEMENTS[ch])
-                    self.forward()
-                elif ch in self.ESCAPE_CODES:
-                    length = self.ESCAPE_CODES[ch]
-                    self.forward()
-                    for k in range(length):
-                        if self.peek(k) not in u'0123456789ABCDEFabcdef':
-                            raise ScannerError("while scanning a double-quoted scalar", start_mark,
-                                    "expected escape sequence of %d hexdecimal numbers, but found %r" %
-                                        (length, self.peek(k).encode('utf-8')), self.get_mark())
-                    code = int(self.prefix(length), 16)
-                    chunks.append(unichr(code))
-                    self.forward(length)
-                elif ch in u'\r\n\x85\u2028\u2029':
-                    self.scan_line_break()
-                    chunks.extend(self.scan_flow_scalar_breaks(double, start_mark))
-                else:
-                    raise ScannerError("while scanning a double-quoted scalar", start_mark,
-                            "found unknown escape character %r" % ch.encode('utf-8'), self.get_mark())
-            else:
-                return chunks
-
-    def scan_flow_scalar_spaces(self, double, start_mark):
-        # See the specification for details.
-        chunks = []
-        length = 0
-        while self.peek(length) in u' \t':
-            length += 1
-        whitespaces = self.prefix(length)
-        self.forward(length)
-        ch = self.peek()
-        if ch == u'\0':
-            raise ScannerError("while scanning a quoted scalar", start_mark,
-                    "found unexpected end of stream", self.get_mark())
-        elif ch in u'\r\n\x85\u2028\u2029':
-            line_break = self.scan_line_break()
-            breaks = self.scan_flow_scalar_breaks(double, start_mark)
-            if line_break != u'\n':
-                chunks.append(line_break)
-            elif not breaks:
-                chunks.append(u' ')
-            chunks.extend(breaks)
-        else:
-            chunks.append(whitespaces)
-        return chunks
-
-    def scan_flow_scalar_breaks(self, double, start_mark):
-        # See the specification for details.
-        chunks = []
-        while True:
-            # Instead of checking indentation, we check for document
-            # separators.
-            prefix = self.prefix(3)
-            if (prefix == u'---' or prefix == u'...')   \
-                    and self.peek(3) in u'\0 \t\r\n\x85\u2028\u2029':
-                raise ScannerError("while scanning a quoted scalar", start_mark,
-                        "found unexpected document separator", self.get_mark())
-            while self.peek() in u' \t':
-                self.forward()
-            if self.peek() in u'\r\n\x85\u2028\u2029':
-                chunks.append(self.scan_line_break())
-            else:
-                return chunks
-
-    def scan_plain(self):
-        # See the specification for details.
-        # We add an additional restriction for the flow context:
-        #   plain scalars in the flow context cannot contain ',', ':' and '?'.
-        # We also keep track of the `allow_simple_key` flag here.
-        # Indentation rules are loosed for the flow context.
-        chunks = []
-        start_mark = self.get_mark()
-        end_mark = start_mark
-        indent = self.indent+1
-        # We allow zero indentation for scalars, but then we need to check for
-        # document separators at the beginning of the line.
-        #if indent == 0:
-        #    indent = 1
-        spaces = []
-        while True:
-            length = 0
-            if self.peek() == u'#':
-                break
-            while True:
-                ch = self.peek(length)
-                if ch in u'\0 \t\r\n\x85\u2028\u2029'   \
-                        or (not self.flow_level and ch == u':' and
-                                self.peek(length+1) in u'\0 \t\r\n\x85\u2028\u2029') \
-                        or (self.flow_level and ch in u',:?[]{}'):
-                    break
-                length += 1
-            # It's not clear what we should do with ':' in the flow context.
-            if (self.flow_level and ch == u':'
-                    and self.peek(length+1) not in u'\0 \t\r\n\x85\u2028\u2029,[]{}'):
-                self.forward(length)
-                raise ScannerError("while scanning a plain scalar", start_mark,
-                    "found unexpected ':'", self.get_mark(),
-                    "Please check http://pyyaml.org/wiki/YAMLColonInFlowContext for details.")
-            if length == 0:
-                break
-            self.allow_simple_key = False
-            chunks.extend(spaces)
-            chunks.append(self.prefix(length))
-            self.forward(length)
-            end_mark = self.get_mark()
-            spaces = self.scan_plain_spaces(indent, start_mark)
-            if not spaces or self.peek() == u'#' \
-                    or (not self.flow_level and self.column < indent):
-                break
-        return ScalarToken(u''.join(chunks), True, start_mark, end_mark)
-
-    def scan_plain_spaces(self, indent, start_mark):
-        # See the specification for details.
-        # The specification is really confusing about tabs in plain scalars.
-        # We just forbid them completely. Do not use tabs in YAML!
-        chunks = []
-        length = 0
-        while self.peek(length) in u' ':
-            length += 1
-        whitespaces = self.prefix(length)
-        self.forward(length)
-        ch = self.peek()
-        if ch in u'\r\n\x85\u2028\u2029':
-            line_break = self.scan_line_break()
-            self.allow_simple_key = True
-            prefix = self.prefix(3)
-            if (prefix == u'---' or prefix == u'...')   \
-                    and self.peek(3) in u'\0 \t\r\n\x85\u2028\u2029':
-                return
-            breaks = []
-            while self.peek() in u' \r\n\x85\u2028\u2029':
-                if self.peek() == ' ':
-                    self.forward()
-                else:
-                    breaks.append(self.scan_line_break())
-                    prefix = self.prefix(3)
-                    if (prefix == u'---' or prefix == u'...')   \
-                            and self.peek(3) in u'\0 \t\r\n\x85\u2028\u2029':
-                        return
-            if line_break != u'\n':
-                chunks.append(line_break)
-            elif not breaks:
-                chunks.append(u' ')
-            chunks.extend(breaks)
-        elif whitespaces:
-            chunks.append(whitespaces)
-        return chunks
-
-    def scan_tag_handle(self, name, start_mark):
-        # See the specification for details.
-        # For some strange reasons, the specification does not allow '_' in
-        # tag handles. I have allowed it anyway.
-        ch = self.peek()
-        if ch != u'!':
-            raise ScannerError("while scanning a %s" % name, start_mark,
-                    "expected '!', but found %r" % ch.encode('utf-8'),
-                    self.get_mark())
-        length = 1
-        ch = self.peek(length)
-        if ch != u' ':
-            while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'    \
-                    or ch in u'-_':
-                length += 1
-                ch = self.peek(length)
-            if ch != u'!':
-                self.forward(length)
-                raise ScannerError("while scanning a %s" % name, start_mark,
-                        "expected '!', but found %r" % ch.encode('utf-8'),
-                        self.get_mark())
-            length += 1
-        value = self.prefix(length)
-        self.forward(length)
-        return value
-
-    def scan_tag_uri(self, name, start_mark):
-        # See the specification for details.
-        # Note: we do not check if URI is well-formed.
-        chunks = []
-        length = 0
-        ch = self.peek(length)
-        while u'0' <= ch <= u'9' or u'A' <= ch <= u'Z' or u'a' <= ch <= u'z'    \
-                or ch in u'-;/?:@&=+$,_.!~*\'()[]%':
-            if ch == u'%':
-                chunks.append(self.prefix(length))
-                self.forward(length)
-                length = 0
-                chunks.append(self.scan_uri_escapes(name, start_mark))
-            else:
-                length += 1
-            ch = self.peek(length)
-        if length:
-            chunks.append(self.prefix(length))
-            self.forward(length)
-            length = 0
-        if not chunks:
-            raise ScannerError("while parsing a %s" % name, start_mark,
-                    "expected URI, but found %r" % ch.encode('utf-8'),
-                    self.get_mark())
-        return u''.join(chunks)
-
-    def scan_uri_escapes(self, name, start_mark):
-        # See the specification for details.
-        bytes = []
-        mark = self.get_mark()
-        while self.peek() == u'%':
-            self.forward()
-            for k in range(2):
-                if self.peek(k) not in u'0123456789ABCDEFabcdef':
-                    raise ScannerError("while scanning a %s" % name, start_mark,
-                            "expected URI escape sequence of 2 hexdecimal numbers, but found %r" %
-                                (self.peek(k).encode('utf-8')), self.get_mark())
-            bytes.append(chr(int(self.prefix(2), 16)))
-            self.forward(2)
-        try:
-            value = unicode(''.join(bytes), 'utf-8')
-        except UnicodeDecodeError, exc:
-            raise ScannerError("while scanning a %s" % name, start_mark, str(exc), mark)
-        return value
-
-    def scan_line_break(self):
-        # Transforms:
-        #   '\r\n'      :   '\n'
-        #   '\r'        :   '\n'
-        #   '\n'        :   '\n'
-        #   '\x85'      :   '\n'
-        #   '\u2028'    :   '\u2028'
-        #   '\u2029     :   '\u2029'
-        #   default     :   ''
-        ch = self.peek()
-        if ch in u'\r\n\x85':
-            if self.prefix(2) == u'\r\n':
-                self.forward(2)
-            else:
-                self.forward()
-            return u'\n'
-        elif ch in u'\u2028\u2029':
-            self.forward()
-            return ch
-        return u''
-
-#try:
-#    import psyco
-#    psyco.bind(Scanner)
-#except ImportError:
-#    pass
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/serializer.py b/collectors/python.d.plugin/python_modules/pyyaml2/serializer.py
deleted file mode 100644
index 15fdbb0c0..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/serializer.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['Serializer', 'SerializerError']
-
-from error import YAMLError
-from events import *
-from nodes import *
-
-class SerializerError(YAMLError):
-    pass
-
-class Serializer(object):
-
-    ANCHOR_TEMPLATE = u'id%03d'
-
-    def __init__(self, encoding=None,
-            explicit_start=None, explicit_end=None, version=None, tags=None):
-        self.use_encoding = encoding
-        self.use_explicit_start = explicit_start
-        self.use_explicit_end = explicit_end
-        self.use_version = version
-        self.use_tags = tags
-        self.serialized_nodes = {}
-        self.anchors = {}
-        self.last_anchor_id = 0
-        self.closed = None
-
-    def open(self):
-        if self.closed is None:
-            self.emit(StreamStartEvent(encoding=self.use_encoding))
-            self.closed = False
-        elif self.closed:
-            raise SerializerError("serializer is closed")
-        else:
-            raise SerializerError("serializer is already opened")
-
-    def close(self):
-        if self.closed is None:
-            raise SerializerError("serializer is not opened")
-        elif not self.closed:
-            self.emit(StreamEndEvent())
-            self.closed = True
-
-    #def __del__(self):
-    #    self.close()
-
-    def serialize(self, node):
-        if self.closed is None:
-            raise SerializerError("serializer is not opened")
-        elif self.closed:
-            raise SerializerError("serializer is closed")
-        self.emit(DocumentStartEvent(explicit=self.use_explicit_start,
-            version=self.use_version, tags=self.use_tags))
-        self.anchor_node(node)
-        self.serialize_node(node, None, None)
-        self.emit(DocumentEndEvent(explicit=self.use_explicit_end))
-        self.serialized_nodes = {}
-        self.anchors = {}
-        self.last_anchor_id = 0
-
-    def anchor_node(self, node):
-        if node in self.anchors:
-            if self.anchors[node] is None:
-                self.anchors[node] = self.generate_anchor(node)
-        else:
-            self.anchors[node] = None
-            if isinstance(node, SequenceNode):
-                for item in node.value:
-                    self.anchor_node(item)
-            elif isinstance(node, MappingNode):
-                for key, value in node.value:
-                    self.anchor_node(key)
-                    self.anchor_node(value)
-
-    def generate_anchor(self, node):
-        self.last_anchor_id += 1
-        return self.ANCHOR_TEMPLATE % self.last_anchor_id
-
-    def serialize_node(self, node, parent, index):
-        alias = self.anchors[node]
-        if node in self.serialized_nodes:
-            self.emit(AliasEvent(alias))
-        else:
-            self.serialized_nodes[node] = True
-            self.descend_resolver(parent, index)
-            if isinstance(node, ScalarNode):
-                detected_tag = self.resolve(ScalarNode, node.value, (True, False))
-                default_tag = self.resolve(ScalarNode, node.value, (False, True))
-                implicit = (node.tag == detected_tag), (node.tag == default_tag)
-                self.emit(ScalarEvent(alias, node.tag, implicit, node.value,
-                    style=node.style))
-            elif isinstance(node, SequenceNode):
-                implicit = (node.tag
-                            == self.resolve(SequenceNode, node.value, True))
-                self.emit(SequenceStartEvent(alias, node.tag, implicit,
-                    flow_style=node.flow_style))
-                index = 0
-                for item in node.value:
-                    self.serialize_node(item, node, index)
-                    index += 1
-                self.emit(SequenceEndEvent())
-            elif isinstance(node, MappingNode):
-                implicit = (node.tag
-                            == self.resolve(MappingNode, node.value, True))
-                self.emit(MappingStartEvent(alias, node.tag, implicit,
-                    flow_style=node.flow_style))
-                for key, value in node.value:
-                    self.serialize_node(key, node, None)
-                    self.serialize_node(value, node, key)
-                self.emit(MappingEndEvent())
-            self.ascend_resolver()
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml2/tokens.py b/collectors/python.d.plugin/python_modules/pyyaml2/tokens.py
deleted file mode 100644
index c5c4fb116..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml2/tokens.py
+++ /dev/null
@@ -1,105 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-class Token(object):
-    def __init__(self, start_mark, end_mark):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-    def __repr__(self):
-        attributes = [key for key in self.__dict__
-                if not key.endswith('_mark')]
-        attributes.sort()
-        arguments = ', '.join(['%s=%r' % (key, getattr(self, key))
-                for key in attributes])
-        return '%s(%s)' % (self.__class__.__name__, arguments)
-
-#class BOMToken(Token):
-#    id = '<byte order mark>'
-
-class DirectiveToken(Token):
-    id = '<directive>'
-    def __init__(self, name, value, start_mark, end_mark):
-        self.name = name
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-
-class DocumentStartToken(Token):
-    id = '<document start>'
-
-class DocumentEndToken(Token):
-    id = '<document end>'
-
-class StreamStartToken(Token):
-    id = '<stream start>'
-    def __init__(self, start_mark=None, end_mark=None,
-            encoding=None):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.encoding = encoding
-
-class StreamEndToken(Token):
-    id = '<stream end>'
-
-class BlockSequenceStartToken(Token):
-    id = '<block sequence start>'
-
-class BlockMappingStartToken(Token):
-    id = '<block mapping start>'
-
-class BlockEndToken(Token):
-    id = '<block end>'
-
-class FlowSequenceStartToken(Token):
-    id = '['
-
-class FlowMappingStartToken(Token):
-    id = '{'
-
-class FlowSequenceEndToken(Token):
-    id = ']'
-
-class FlowMappingEndToken(Token):
-    id = '}'
-
-class KeyToken(Token):
-    id = '?'
-
-class ValueToken(Token):
-    id = ':'
-
-class BlockEntryToken(Token):
-    id = '-'
-
-class FlowEntryToken(Token):
-    id = ','
-
-class AliasToken(Token):
-    id = '<alias>'
-    def __init__(self, value, start_mark, end_mark):
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-
-class AnchorToken(Token):
-    id = '<anchor>'
-    def __init__(self, value, start_mark, end_mark):
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-
-class TagToken(Token):
-    id = '<tag>'
-    def __init__(self, value, start_mark, end_mark):
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-
-class ScalarToken(Token):
-    id = '<scalar>'
-    def __init__(self, value, plain, start_mark, end_mark, style=None):
-        self.value = value
-        self.plain = plain
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.style = style
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/__init__.py b/collectors/python.d.plugin/python_modules/pyyaml3/__init__.py
deleted file mode 100644
index a884b33cf..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/__init__.py
+++ /dev/null
@@ -1,313 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-from .error import *
-
-from .tokens import *
-from .events import *
-from .nodes import *
-
-from .loader import *
-from .dumper import *
-
-__version__ = '3.11'
-try:
-    from .cyaml import *
-    __with_libyaml__ = True
-except ImportError:
-    __with_libyaml__ = False
-
-import io
-
-def scan(stream, Loader=Loader):
-    """
-    Scan a YAML stream and produce scanning tokens.
-    """
-    loader = Loader(stream)
-    try:
-        while loader.check_token():
-            yield loader.get_token()
-    finally:
-        loader.dispose()
-
-def parse(stream, Loader=Loader):
-    """
-    Parse a YAML stream and produce parsing events.
-    """
-    loader = Loader(stream)
-    try:
-        while loader.check_event():
-            yield loader.get_event()
-    finally:
-        loader.dispose()
-
-def compose(stream, Loader=Loader):
-    """
-    Parse the first YAML document in a stream
-    and produce the corresponding representation tree.
-    """
-    loader = Loader(stream)
-    try:
-        return loader.get_single_node()
-    finally:
-        loader.dispose()
-
-def compose_all(stream, Loader=Loader):
-    """
-    Parse all YAML documents in a stream
-    and produce corresponding representation trees.
-    """
-    loader = Loader(stream)
-    try:
-        while loader.check_node():
-            yield loader.get_node()
-    finally:
-        loader.dispose()
-
-def load(stream, Loader=Loader):
-    """
-    Parse the first YAML document in a stream
-    and produce the corresponding Python object.
-    """
-    loader = Loader(stream)
-    try:
-        return loader.get_single_data()
-    finally:
-        loader.dispose()
-
-def load_all(stream, Loader=Loader):
-    """
-    Parse all YAML documents in a stream
-    and produce corresponding Python objects.
-    """
-    loader = Loader(stream)
-    try:
-        while loader.check_data():
-            yield loader.get_data()
-    finally:
-        loader.dispose()
-
-def safe_load(stream):
-    """
-    Parse the first YAML document in a stream
-    and produce the corresponding Python object.
-    Resolve only basic YAML tags.
-    """
-    return load(stream, SafeLoader)
-
-def safe_load_all(stream):
-    """
-    Parse all YAML documents in a stream
-    and produce corresponding Python objects.
-    Resolve only basic YAML tags.
-    """
-    return load_all(stream, SafeLoader)
-
-def emit(events, stream=None, Dumper=Dumper,
-        canonical=None, indent=None, width=None,
-        allow_unicode=None, line_break=None):
-    """
-    Emit YAML parsing events into a stream.
-    If stream is None, return the produced string instead.
-    """
-    getvalue = None
-    if stream is None:
-        stream = io.StringIO()
-        getvalue = stream.getvalue
-    dumper = Dumper(stream, canonical=canonical, indent=indent, width=width,
-            allow_unicode=allow_unicode, line_break=line_break)
-    try:
-        for event in events:
-            dumper.emit(event)
-    finally:
-        dumper.dispose()
-    if getvalue:
-        return getvalue()
-
-def serialize_all(nodes, stream=None, Dumper=Dumper,
-        canonical=None, indent=None, width=None,
-        allow_unicode=None, line_break=None,
-        encoding=None, explicit_start=None, explicit_end=None,
-        version=None, tags=None):
-    """
-    Serialize a sequence of representation trees into a YAML stream.
-    If stream is None, return the produced string instead.
-    """
-    getvalue = None
-    if stream is None:
-        if encoding is None:
-            stream = io.StringIO()
-        else:
-            stream = io.BytesIO()
-        getvalue = stream.getvalue
-    dumper = Dumper(stream, canonical=canonical, indent=indent, width=width,
-            allow_unicode=allow_unicode, line_break=line_break,
-            encoding=encoding, version=version, tags=tags,
-            explicit_start=explicit_start, explicit_end=explicit_end)
-    try:
-        dumper.open()
-        for node in nodes:
-            dumper.serialize(node)
-        dumper.close()
-    finally:
-        dumper.dispose()
-    if getvalue:
-        return getvalue()
-
-def serialize(node, stream=None, Dumper=Dumper, **kwds):
-    """
-    Serialize a representation tree into a YAML stream.
-    If stream is None, return the produced string instead.
-    """
-    return serialize_all([node], stream, Dumper=Dumper, **kwds)
-
-def dump_all(documents, stream=None, Dumper=Dumper,
-        default_style=None, default_flow_style=None,
-        canonical=None, indent=None, width=None,
-        allow_unicode=None, line_break=None,
-        encoding=None, explicit_start=None, explicit_end=None,
-        version=None, tags=None):
-    """
-    Serialize a sequence of Python objects into a YAML stream.
-    If stream is None, return the produced string instead.
-    """
-    getvalue = None
-    if stream is None:
-        if encoding is None:
-            stream = io.StringIO()
-        else:
-            stream = io.BytesIO()
-        getvalue = stream.getvalue
-    dumper = Dumper(stream, default_style=default_style,
-            default_flow_style=default_flow_style,
-            canonical=canonical, indent=indent, width=width,
-            allow_unicode=allow_unicode, line_break=line_break,
-            encoding=encoding, version=version, tags=tags,
-            explicit_start=explicit_start, explicit_end=explicit_end)
-    try:
-        dumper.open()
-        for data in documents:
-            dumper.represent(data)
-        dumper.close()
-    finally:
-        dumper.dispose()
-    if getvalue:
-        return getvalue()
-
-def dump(data, stream=None, Dumper=Dumper, **kwds):
-    """
-    Serialize a Python object into a YAML stream.
-    If stream is None, return the produced string instead.
-    """
-    return dump_all([data], stream, Dumper=Dumper, **kwds)
-
-def safe_dump_all(documents, stream=None, **kwds):
-    """
-    Serialize a sequence of Python objects into a YAML stream.
-    Produce only basic YAML tags.
-    If stream is None, return the produced string instead.
-    """
-    return dump_all(documents, stream, Dumper=SafeDumper, **kwds)
-
-def safe_dump(data, stream=None, **kwds):
-    """
-    Serialize a Python object into a YAML stream.
-    Produce only basic YAML tags.
-    If stream is None, return the produced string instead.
-    """
-    return dump_all([data], stream, Dumper=SafeDumper, **kwds)
-
-def add_implicit_resolver(tag, regexp, first=None,
-        Loader=Loader, Dumper=Dumper):
-    """
-    Add an implicit scalar detector.
-    If an implicit scalar value matches the given regexp,
-    the corresponding tag is assigned to the scalar.
-    first is a sequence of possible initial characters or None.
-    """
-    Loader.add_implicit_resolver(tag, regexp, first)
-    Dumper.add_implicit_resolver(tag, regexp, first)
-
-def add_path_resolver(tag, path, kind=None, Loader=Loader, Dumper=Dumper):
-    """
-    Add a path based resolver for the given tag.
-    A path is a list of keys that forms a path
-    to a node in the representation tree.
-    Keys can be string values, integers, or None.
-    """
-    Loader.add_path_resolver(tag, path, kind)
-    Dumper.add_path_resolver(tag, path, kind)
-
-def add_constructor(tag, constructor, Loader=Loader):
-    """
-    Add a constructor for the given tag.
-    Constructor is a function that accepts a Loader instance
-    and a node object and produces the corresponding Python object.
-    """
-    Loader.add_constructor(tag, constructor)
-
-def add_multi_constructor(tag_prefix, multi_constructor, Loader=Loader):
-    """
-    Add a multi-constructor for the given tag prefix.
-    Multi-constructor is called for a node if its tag starts with tag_prefix.
-    Multi-constructor accepts a Loader instance, a tag suffix,
-    and a node object and produces the corresponding Python object.
-    """
-    Loader.add_multi_constructor(tag_prefix, multi_constructor)
-
-def add_representer(data_type, representer, Dumper=Dumper):
-    """
-    Add a representer for the given type.
-    Representer is a function accepting a Dumper instance
-    and an instance of the given data type
-    and producing the corresponding representation node.
-    """
-    Dumper.add_representer(data_type, representer)
-
-def add_multi_representer(data_type, multi_representer, Dumper=Dumper):
-    """
-    Add a representer for the given type.
-    Multi-representer is a function accepting a Dumper instance
-    and an instance of the given data type or subtype
-    and producing the corresponding representation node.
-    """
-    Dumper.add_multi_representer(data_type, multi_representer)
-
-class YAMLObjectMetaclass(type):
-    """
-    The metaclass for YAMLObject.
-    """
-    def __init__(cls, name, bases, kwds):
-        super(YAMLObjectMetaclass, cls).__init__(name, bases, kwds)
-        if 'yaml_tag' in kwds and kwds['yaml_tag'] is not None:
-            cls.yaml_loader.add_constructor(cls.yaml_tag, cls.from_yaml)
-            cls.yaml_dumper.add_representer(cls, cls.to_yaml)
-
-class YAMLObject(metaclass=YAMLObjectMetaclass):
-    """
-    An object that can dump itself to a YAML stream
-    and load itself from a YAML stream.
-    """
-
-    __slots__ = ()  # no direct instantiation, so allow immutable subclasses
-
-    yaml_loader = Loader
-    yaml_dumper = Dumper
-
-    yaml_tag = None
-    yaml_flow_style = None
-
-    @classmethod
-    def from_yaml(cls, loader, node):
-        """
-        Convert a representation node to a Python object.
-        """
-        return loader.construct_yaml_object(node, cls)
-
-    @classmethod
-    def to_yaml(cls, dumper, data):
-        """
-        Convert a Python object to a representation node.
-        """
-        return dumper.represent_yaml_object(cls.yaml_tag, data, cls,
-                flow_style=cls.yaml_flow_style)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/composer.py b/collectors/python.d.plugin/python_modules/pyyaml3/composer.py
deleted file mode 100644
index c418bba91..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/composer.py
+++ /dev/null
@@ -1,140 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['Composer', 'ComposerError']
-
-from .error import MarkedYAMLError
-from .events import *
-from .nodes import *
-
-class ComposerError(MarkedYAMLError):
-    pass
-
-class Composer:
-
-    def __init__(self):
-        self.anchors = {}
-
-    def check_node(self):
-        # Drop the STREAM-START event.
-        if self.check_event(StreamStartEvent):
-            self.get_event()
-
-        # If there are more documents available?
-        return not self.check_event(StreamEndEvent)
-
-    def get_node(self):
-        # Get the root node of the next document.
-        if not self.check_event(StreamEndEvent):
-            return self.compose_document()
-
-    def get_single_node(self):
-        # Drop the STREAM-START event.
-        self.get_event()
-
-        # Compose a document if the stream is not empty.
-        document = None
-        if not self.check_event(StreamEndEvent):
-            document = self.compose_document()
-
-        # Ensure that the stream contains no more documents.
-        if not self.check_event(StreamEndEvent):
-            event = self.get_event()
-            raise ComposerError("expected a single document in the stream",
-                    document.start_mark, "but found another document",
-                    event.start_mark)
-
-        # Drop the STREAM-END event.
-        self.get_event()
-
-        return document
-
-    def compose_document(self):
-        # Drop the DOCUMENT-START event.
-        self.get_event()
-
-        # Compose the root node.
-        node = self.compose_node(None, None)
-
-        # Drop the DOCUMENT-END event.
-        self.get_event()
-
-        self.anchors = {}
-        return node
-
-    def compose_node(self, parent, index):
-        if self.check_event(AliasEvent):
-            event = self.get_event()
-            anchor = event.anchor
-            if anchor not in self.anchors:
-                raise ComposerError(None, None, "found undefined alias %r"
-                        % anchor, event.start_mark)
-            return self.anchors[anchor]
-        event = self.peek_event()
-        anchor = event.anchor
-        if anchor is not None:
-            if anchor in self.anchors:
-                raise ComposerError("found duplicate anchor %r; first occurence"
-                        % anchor, self.anchors[anchor].start_mark,
-                        "second occurence", event.start_mark)
-        self.descend_resolver(parent, index)
-        if self.check_event(ScalarEvent):
-            node = self.compose_scalar_node(anchor)
-        elif self.check_event(SequenceStartEvent):
-            node = self.compose_sequence_node(anchor)
-        elif self.check_event(MappingStartEvent):
-            node = self.compose_mapping_node(anchor)
-        self.ascend_resolver()
-        return node
-
-    def compose_scalar_node(self, anchor):
-        event = self.get_event()
-        tag = event.tag
-        if tag is None or tag == '!':
-            tag = self.resolve(ScalarNode, event.value, event.implicit)
-        node = ScalarNode(tag, event.value,
-                event.start_mark, event.end_mark, style=event.style)
-        if anchor is not None:
-            self.anchors[anchor] = node
-        return node
-
-    def compose_sequence_node(self, anchor):
-        start_event = self.get_event()
-        tag = start_event.tag
-        if tag is None or tag == '!':
-            tag = self.resolve(SequenceNode, None, start_event.implicit)
-        node = SequenceNode(tag, [],
-                start_event.start_mark, None,
-                flow_style=start_event.flow_style)
-        if anchor is not None:
-            self.anchors[anchor] = node
-        index = 0
-        while not self.check_event(SequenceEndEvent):
-            node.value.append(self.compose_node(node, index))
-            index += 1
-        end_event = self.get_event()
-        node.end_mark = end_event.end_mark
-        return node
-
-    def compose_mapping_node(self, anchor):
-        start_event = self.get_event()
-        tag = start_event.tag
-        if tag is None or tag == '!':
-            tag = self.resolve(MappingNode, None, start_event.implicit)
-        node = MappingNode(tag, [],
-                start_event.start_mark, None,
-                flow_style=start_event.flow_style)
-        if anchor is not None:
-            self.anchors[anchor] = node
-        while not self.check_event(MappingEndEvent):
-            #key_event = self.peek_event()
-            item_key = self.compose_node(node, None)
-            #if item_key in node.value:
-            #    raise ComposerError("while composing a mapping", start_event.start_mark,
-            #            "found duplicate key", key_event.start_mark)
-            item_value = self.compose_node(node, item_key)
-            #node.value[item_key] = item_value
-            node.value.append((item_key, item_value))
-        end_event = self.get_event()
-        node.end_mark = end_event.end_mark
-        return node
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/constructor.py b/collectors/python.d.plugin/python_modules/pyyaml3/constructor.py
deleted file mode 100644
index ee09a7a7e..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/constructor.py
+++ /dev/null
@@ -1,687 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['BaseConstructor', 'SafeConstructor', 'Constructor',
-    'ConstructorError']
-
-from .error import *
-from .nodes import *
-
-import collections, datetime, base64, binascii, re, sys, types
-
-class ConstructorError(MarkedYAMLError):
-    pass
-
-class BaseConstructor:
-
-    yaml_constructors = {}
-    yaml_multi_constructors = {}
-
-    def __init__(self):
-        self.constructed_objects = {}
-        self.recursive_objects = {}
-        self.state_generators = []
-        self.deep_construct = False
-
-    def check_data(self):
-        # If there are more documents available?
-        return self.check_node()
-
-    def get_data(self):
-        # Construct and return the next document.
-        if self.check_node():
-            return self.construct_document(self.get_node())
-
-    def get_single_data(self):
-        # Ensure that the stream contains a single document and construct it.
-        node = self.get_single_node()
-        if node is not None:
-            return self.construct_document(node)
-        return None
-
-    def construct_document(self, node):
-        data = self.construct_object(node)
-        while self.state_generators:
-            state_generators = self.state_generators
-            self.state_generators = []
-            for generator in state_generators:
-                for dummy in generator:
-                    pass
-        self.constructed_objects = {}
-        self.recursive_objects = {}
-        self.deep_construct = False
-        return data
-
-    def construct_object(self, node, deep=False):
-        if node in self.constructed_objects:
-            return self.constructed_objects[node]
-        if deep:
-            old_deep = self.deep_construct
-            self.deep_construct = True
-        if node in self.recursive_objects:
-            raise ConstructorError(None, None,
-                    "found unconstructable recursive node", node.start_mark)
-        self.recursive_objects[node] = None
-        constructor = None
-        tag_suffix = None
-        if node.tag in self.yaml_constructors:
-            constructor = self.yaml_constructors[node.tag]
-        else:
-            for tag_prefix in self.yaml_multi_constructors:
-                if node.tag.startswith(tag_prefix):
-                    tag_suffix = node.tag[len(tag_prefix):]
-                    constructor = self.yaml_multi_constructors[tag_prefix]
-                    break
-            else:
-                if None in self.yaml_multi_constructors:
-                    tag_suffix = node.tag
-                    constructor = self.yaml_multi_constructors[None]
-                elif None in self.yaml_constructors:
-                    constructor = self.yaml_constructors[None]
-                elif isinstance(node, ScalarNode):
-                    constructor = self.__class__.construct_scalar
-                elif isinstance(node, SequenceNode):
-                    constructor = self.__class__.construct_sequence
-                elif isinstance(node, MappingNode):
-                    constructor = self.__class__.construct_mapping
-        if tag_suffix is None:
-            data = constructor(self, node)
-        else:
-            data = constructor(self, tag_suffix, node)
-        if isinstance(data, types.GeneratorType):
-            generator = data
-            data = next(generator)
-            if self.deep_construct:
-                for dummy in generator:
-                    pass
-            else:
-                self.state_generators.append(generator)
-        self.constructed_objects[node] = data
-        del self.recursive_objects[node]
-        if deep:
-            self.deep_construct = old_deep
-        return data
-
-    def construct_scalar(self, node):
-        if not isinstance(node, ScalarNode):
-            raise ConstructorError(None, None,
-                    "expected a scalar node, but found %s" % node.id,
-                    node.start_mark)
-        return node.value
-
-    def construct_sequence(self, node, deep=False):
-        if not isinstance(node, SequenceNode):
-            raise ConstructorError(None, None,
-                    "expected a sequence node, but found %s" % node.id,
-                    node.start_mark)
-        return [self.construct_object(child, deep=deep)
-                for child in node.value]
-
-    def construct_mapping(self, node, deep=False):
-        if not isinstance(node, MappingNode):
-            raise ConstructorError(None, None,
-                    "expected a mapping node, but found %s" % node.id,
-                    node.start_mark)
-        mapping = {}
-        for key_node, value_node in node.value:
-            key = self.construct_object(key_node, deep=deep)
-            if not isinstance(key, collections.Hashable):
-                raise ConstructorError("while constructing a mapping", node.start_mark,
-                        "found unhashable key", key_node.start_mark)
-            value = self.construct_object(value_node, deep=deep)
-            mapping[key] = value
-        return mapping
-
-    def construct_pairs(self, node, deep=False):
-        if not isinstance(node, MappingNode):
-            raise ConstructorError(None, None,
-                    "expected a mapping node, but found %s" % node.id,
-                    node.start_mark)
-        pairs = []
-        for key_node, value_node in node.value:
-            key = self.construct_object(key_node, deep=deep)
-            value = self.construct_object(value_node, deep=deep)
-            pairs.append((key, value))
-        return pairs
-
-    @classmethod
-    def add_constructor(cls, tag, constructor):
-        if not 'yaml_constructors' in cls.__dict__:
-            cls.yaml_constructors = cls.yaml_constructors.copy()
-        cls.yaml_constructors[tag] = constructor
-
-    @classmethod
-    def add_multi_constructor(cls, tag_prefix, multi_constructor):
-        if not 'yaml_multi_constructors' in cls.__dict__:
-            cls.yaml_multi_constructors = cls.yaml_multi_constructors.copy()
-        cls.yaml_multi_constructors[tag_prefix] = multi_constructor
-
-class SafeConstructor(BaseConstructor):
-
-    def construct_scalar(self, node):
-        if isinstance(node, MappingNode):
-            for key_node, value_node in node.value:
-                if key_node.tag == 'tag:yaml.org,2002:value':
-                    return self.construct_scalar(value_node)
-        return super().construct_scalar(node)
-
-    def flatten_mapping(self, node):
-        merge = []
-        index = 0
-        while index < len(node.value):
-            key_node, value_node = node.value[index]
-            if key_node.tag == 'tag:yaml.org,2002:merge':
-                del node.value[index]
-                if isinstance(value_node, MappingNode):
-                    self.flatten_mapping(value_node)
-                    merge.extend(value_node.value)
-                elif isinstance(value_node, SequenceNode):
-                    submerge = []
-                    for subnode in value_node.value:
-                        if not isinstance(subnode, MappingNode):
-                            raise ConstructorError("while constructing a mapping",
-                                    node.start_mark,
-                                    "expected a mapping for merging, but found %s"
-                                    % subnode.id, subnode.start_mark)
-                        self.flatten_mapping(subnode)
-                        submerge.append(subnode.value)
-                    submerge.reverse()
-                    for value in submerge:
-                        merge.extend(value)
-                else:
-                    raise ConstructorError("while constructing a mapping", node.start_mark,
-                            "expected a mapping or list of mappings for merging, but found %s"
-                            % value_node.id, value_node.start_mark)
-            elif key_node.tag == 'tag:yaml.org,2002:value':
-                key_node.tag = 'tag:yaml.org,2002:str'
-                index += 1
-            else:
-                index += 1
-        if merge:
-            node.value = merge + node.value
-
-    def construct_mapping(self, node, deep=False):
-        if isinstance(node, MappingNode):
-            self.flatten_mapping(node)
-        return super().construct_mapping(node, deep=deep)
-
-    def construct_yaml_null(self, node):
-        self.construct_scalar(node)
-        return None
-
-    bool_values = {
-        'yes':      True,
-        'no':       False,
-        'true':     True,
-        'false':    False,
-        'on':       True,
-        'off':      False,
-    }
-
-    def construct_yaml_bool(self, node):
-        value = self.construct_scalar(node)
-        return self.bool_values[value.lower()]
-
-    def construct_yaml_int(self, node):
-        value = self.construct_scalar(node)
-        value = value.replace('_', '')
-        sign = +1
-        if value[0] == '-':
-            sign = -1
-        if value[0] in '+-':
-            value = value[1:]
-        if value == '0':
-            return 0
-        elif value.startswith('0b'):
-            return sign*int(value[2:], 2)
-        elif value.startswith('0x'):
-            return sign*int(value[2:], 16)
-        elif value[0] == '0':
-            return sign*int(value, 8)
-        elif ':' in value:
-            digits = [int(part) for part in value.split(':')]
-            digits.reverse()
-            base = 1
-            value = 0
-            for digit in digits:
-                value += digit*base
-                base *= 60
-            return sign*value
-        else:
-            return sign*int(value)
-
-    inf_value = 1e300
-    while inf_value != inf_value*inf_value:
-        inf_value *= inf_value
-    nan_value = -inf_value/inf_value   # Trying to make a quiet NaN (like C99).
-
-    def construct_yaml_float(self, node):
-        value = self.construct_scalar(node)
-        value = value.replace('_', '').lower()
-        sign = +1
-        if value[0] == '-':
-            sign = -1
-        if value[0] in '+-':
-            value = value[1:]
-        if value == '.inf':
-            return sign*self.inf_value
-        elif value == '.nan':
-            return self.nan_value
-        elif ':' in value:
-            digits = [float(part) for part in value.split(':')]
-            digits.reverse()
-            base = 1
-            value = 0.0
-            for digit in digits:
-                value += digit*base
-                base *= 60
-            return sign*value
-        else:
-            return sign*float(value)
-
-    def construct_yaml_binary(self, node):
-        try:
-            value = self.construct_scalar(node).encode('ascii')
-        except UnicodeEncodeError as exc:
-            raise ConstructorError(None, None,
-                    "failed to convert base64 data into ascii: %s" % exc,
-                    node.start_mark)
-        try:
-            if hasattr(base64, 'decodebytes'):
-                return base64.decodebytes(value)
-            else:
-                return base64.decodestring(value)
-        except binascii.Error as exc:
-            raise ConstructorError(None, None,
-                    "failed to decode base64 data: %s" % exc, node.start_mark)
-
-    timestamp_regexp = re.compile(
-            r'''^(?P<year>[0-9][0-9][0-9][0-9])
-                -(?P<month>[0-9][0-9]?)
-                -(?P<day>[0-9][0-9]?)
-                (?:(?:[Tt]|[ \t]+)
-                (?P<hour>[0-9][0-9]?)
-                :(?P<minute>[0-9][0-9])
-                :(?P<second>[0-9][0-9])
-                (?:\.(?P<fraction>[0-9]*))?
-                (?:[ \t]*(?P<tz>Z|(?P<tz_sign>[-+])(?P<tz_hour>[0-9][0-9]?)
-                (?::(?P<tz_minute>[0-9][0-9]))?))?)?$''', re.X)
-
-    def construct_yaml_timestamp(self, node):
-        value = self.construct_scalar(node)
-        match = self.timestamp_regexp.match(node.value)
-        values = match.groupdict()
-        year = int(values['year'])
-        month = int(values['month'])
-        day = int(values['day'])
-        if not values['hour']:
-            return datetime.date(year, month, day)
-        hour = int(values['hour'])
-        minute = int(values['minute'])
-        second = int(values['second'])
-        fraction = 0
-        if values['fraction']:
-            fraction = values['fraction'][:6]
-            while len(fraction) < 6:
-                fraction += '0'
-            fraction = int(fraction)
-        delta = None
-        if values['tz_sign']:
-            tz_hour = int(values['tz_hour'])
-            tz_minute = int(values['tz_minute'] or 0)
-            delta = datetime.timedelta(hours=tz_hour, minutes=tz_minute)
-            if values['tz_sign'] == '-':
-                delta = -delta
-        data = datetime.datetime(year, month, day, hour, minute, second, fraction)
-        if delta:
-            data -= delta
-        return data
-
-    def construct_yaml_omap(self, node):
-        # Note: we do not check for duplicate keys, because it's too
-        # CPU-expensive.
-        omap = []
-        yield omap
-        if not isinstance(node, SequenceNode):
-            raise ConstructorError("while constructing an ordered map", node.start_mark,
-                    "expected a sequence, but found %s" % node.id, node.start_mark)
-        for subnode in node.value:
-            if not isinstance(subnode, MappingNode):
-                raise ConstructorError("while constructing an ordered map", node.start_mark,
-                        "expected a mapping of length 1, but found %s" % subnode.id,
-                        subnode.start_mark)
-            if len(subnode.value) != 1:
-                raise ConstructorError("while constructing an ordered map", node.start_mark,
-                        "expected a single mapping item, but found %d items" % len(subnode.value),
-                        subnode.start_mark)
-            key_node, value_node = subnode.value[0]
-            key = self.construct_object(key_node)
-            value = self.construct_object(value_node)
-            omap.append((key, value))
-
-    def construct_yaml_pairs(self, node):
-        # Note: the same code as `construct_yaml_omap`.
-        pairs = []
-        yield pairs
-        if not isinstance(node, SequenceNode):
-            raise ConstructorError("while constructing pairs", node.start_mark,
-                    "expected a sequence, but found %s" % node.id, node.start_mark)
-        for subnode in node.value:
-            if not isinstance(subnode, MappingNode):
-                raise ConstructorError("while constructing pairs", node.start_mark,
-                        "expected a mapping of length 1, but found %s" % subnode.id,
-                        subnode.start_mark)
-            if len(subnode.value) != 1:
-                raise ConstructorError("while constructing pairs", node.start_mark,
-                        "expected a single mapping item, but found %d items" % len(subnode.value),
-                        subnode.start_mark)
-            key_node, value_node = subnode.value[0]
-            key = self.construct_object(key_node)
-            value = self.construct_object(value_node)
-            pairs.append((key, value))
-
-    def construct_yaml_set(self, node):
-        data = set()
-        yield data
-        value = self.construct_mapping(node)
-        data.update(value)
-
-    def construct_yaml_str(self, node):
-        return self.construct_scalar(node)
-
-    def construct_yaml_seq(self, node):
-        data = []
-        yield data
-        data.extend(self.construct_sequence(node))
-
-    def construct_yaml_map(self, node):
-        data = {}
-        yield data
-        value = self.construct_mapping(node)
-        data.update(value)
-
-    def construct_yaml_object(self, node, cls):
-        data = cls.__new__(cls)
-        yield data
-        if hasattr(data, '__setstate__'):
-            state = self.construct_mapping(node, deep=True)
-            data.__setstate__(state)
-        else:
-            state = self.construct_mapping(node)
-            data.__dict__.update(state)
-
-    def construct_undefined(self, node):
-        raise ConstructorError(None, None,
-                "could not determine a constructor for the tag %r" % node.tag,
-                node.start_mark)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:null',
-        SafeConstructor.construct_yaml_null)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:bool',
-        SafeConstructor.construct_yaml_bool)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:int',
-        SafeConstructor.construct_yaml_int)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:float',
-        SafeConstructor.construct_yaml_float)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:binary',
-        SafeConstructor.construct_yaml_binary)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:timestamp',
-        SafeConstructor.construct_yaml_timestamp)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:omap',
-        SafeConstructor.construct_yaml_omap)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:pairs',
-        SafeConstructor.construct_yaml_pairs)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:set',
-        SafeConstructor.construct_yaml_set)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:str',
-        SafeConstructor.construct_yaml_str)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:seq',
-        SafeConstructor.construct_yaml_seq)
-
-SafeConstructor.add_constructor(
-        'tag:yaml.org,2002:map',
-        SafeConstructor.construct_yaml_map)
-
-SafeConstructor.add_constructor(None,
-        SafeConstructor.construct_undefined)
-
-class Constructor(SafeConstructor):
-
-    def construct_python_str(self, node):
-        return self.construct_scalar(node)
-
-    def construct_python_unicode(self, node):
-        return self.construct_scalar(node)
-
-    def construct_python_bytes(self, node):
-        try:
-            value = self.construct_scalar(node).encode('ascii')
-        except UnicodeEncodeError as exc:
-            raise ConstructorError(None, None,
-                    "failed to convert base64 data into ascii: %s" % exc,
-                    node.start_mark)
-        try:
-            if hasattr(base64, 'decodebytes'):
-                return base64.decodebytes(value)
-            else:
-                return base64.decodestring(value)
-        except binascii.Error as exc:
-            raise ConstructorError(None, None,
-                    "failed to decode base64 data: %s" % exc, node.start_mark)
-
-    def construct_python_long(self, node):
-        return self.construct_yaml_int(node)
-
-    def construct_python_complex(self, node):
-       return complex(self.construct_scalar(node))
-
-    def construct_python_tuple(self, node):
-        return tuple(self.construct_sequence(node))
-
-    def find_python_module(self, name, mark):
-        if not name:
-            raise ConstructorError("while constructing a Python module", mark,
-                    "expected non-empty name appended to the tag", mark)
-        try:
-            __import__(name)
-        except ImportError as exc:
-            raise ConstructorError("while constructing a Python module", mark,
-                    "cannot find module %r (%s)" % (name, exc), mark)
-        return sys.modules[name]
-
-    def find_python_name(self, name, mark):
-        if not name:
-            raise ConstructorError("while constructing a Python object", mark,
-                    "expected non-empty name appended to the tag", mark)
-        if '.' in name:
-            module_name, object_name = name.rsplit('.', 1)
-        else:
-            module_name = 'builtins'
-            object_name = name
-        try:
-            __import__(module_name)
-        except ImportError as exc:
-            raise ConstructorError("while constructing a Python object", mark,
-                    "cannot find module %r (%s)" % (module_name, exc), mark)
-        module = sys.modules[module_name]
-        if not hasattr(module, object_name):
-            raise ConstructorError("while constructing a Python object", mark,
-                    "cannot find %r in the module %r"
-                    % (object_name, module.__name__), mark)
-        return getattr(module, object_name)
-
-    def construct_python_name(self, suffix, node):
-        value = self.construct_scalar(node)
-        if value:
-            raise ConstructorError("while constructing a Python name", node.start_mark,
-                    "expected the empty value, but found %r" % value, node.start_mark)
-        return self.find_python_name(suffix, node.start_mark)
-
-    def construct_python_module(self, suffix, node):
-        value = self.construct_scalar(node)
-        if value:
-            raise ConstructorError("while constructing a Python module", node.start_mark,
-                    "expected the empty value, but found %r" % value, node.start_mark)
-        return self.find_python_module(suffix, node.start_mark)
-
-    def make_python_instance(self, suffix, node,
-            args=None, kwds=None, newobj=False):
-        if not args:
-            args = []
-        if not kwds:
-            kwds = {}
-        cls = self.find_python_name(suffix, node.start_mark)
-        if newobj and isinstance(cls, type):
-            return cls.__new__(cls, *args, **kwds)
-        else:
-            return cls(*args, **kwds)
-
-    def set_python_instance_state(self, instance, state):
-        if hasattr(instance, '__setstate__'):
-            instance.__setstate__(state)
-        else:
-            slotstate = {}
-            if isinstance(state, tuple) and len(state) == 2:
-                state, slotstate = state
-            if hasattr(instance, '__dict__'):
-                instance.__dict__.update(state)
-            elif state:
-                slotstate.update(state)
-            for key, value in slotstate.items():
-                setattr(object, key, value)
-
-    def construct_python_object(self, suffix, node):
-        # Format:
-        #   !!python/object:module.name { ... state ... }
-        instance = self.make_python_instance(suffix, node, newobj=True)
-        yield instance
-        deep = hasattr(instance, '__setstate__')
-        state = self.construct_mapping(node, deep=deep)
-        self.set_python_instance_state(instance, state)
-
-    def construct_python_object_apply(self, suffix, node, newobj=False):
-        # Format:
-        #   !!python/object/apply       # (or !!python/object/new)
-        #   args: [ ... arguments ... ]
-        #   kwds: { ... keywords ... }
-        #   state: ... state ...
-        #   listitems: [ ... listitems ... ]
-        #   dictitems: { ... dictitems ... }
-        # or short format:
-        #   !!python/object/apply [ ... arguments ... ]
-        # The difference between !!python/object/apply and !!python/object/new
-        # is how an object is created, check make_python_instance for details.
-        if isinstance(node, SequenceNode):
-            args = self.construct_sequence(node, deep=True)
-            kwds = {}
-            state = {}
-            listitems = []
-            dictitems = {}
-        else:
-            value = self.construct_mapping(node, deep=True)
-            args = value.get('args', [])
-            kwds = value.get('kwds', {})
-            state = value.get('state', {})
-            listitems = value.get('listitems', [])
-            dictitems = value.get('dictitems', {})
-        instance = self.make_python_instance(suffix, node, args, kwds, newobj)
-        if state:
-            self.set_python_instance_state(instance, state)
-        if listitems:
-            instance.extend(listitems)
-        if dictitems:
-            for key in dictitems:
-                instance[key] = dictitems[key]
-        return instance
-
-    def construct_python_object_new(self, suffix, node):
-        return self.construct_python_object_apply(suffix, node, newobj=True)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/none',
-    Constructor.construct_yaml_null)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/bool',
-    Constructor.construct_yaml_bool)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/str',
-    Constructor.construct_python_str)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/unicode',
-    Constructor.construct_python_unicode)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/bytes',
-    Constructor.construct_python_bytes)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/int',
-    Constructor.construct_yaml_int)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/long',
-    Constructor.construct_python_long)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/float',
-    Constructor.construct_yaml_float)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/complex',
-    Constructor.construct_python_complex)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/list',
-    Constructor.construct_yaml_seq)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/tuple',
-    Constructor.construct_python_tuple)
-
-Constructor.add_constructor(
-    'tag:yaml.org,2002:python/dict',
-    Constructor.construct_yaml_map)
-
-Constructor.add_multi_constructor(
-    'tag:yaml.org,2002:python/name:',
-    Constructor.construct_python_name)
-
-Constructor.add_multi_constructor(
-    'tag:yaml.org,2002:python/module:',
-    Constructor.construct_python_module)
-
-Constructor.add_multi_constructor(
-    'tag:yaml.org,2002:python/object:',
-    Constructor.construct_python_object)
-
-Constructor.add_multi_constructor(
-    'tag:yaml.org,2002:python/object/apply:',
-    Constructor.construct_python_object_apply)
-
-Constructor.add_multi_constructor(
-    'tag:yaml.org,2002:python/object/new:',
-    Constructor.construct_python_object_new)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/cyaml.py b/collectors/python.d.plugin/python_modules/pyyaml3/cyaml.py
deleted file mode 100644
index e6c16d894..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/cyaml.py
+++ /dev/null
@@ -1,86 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['CBaseLoader', 'CSafeLoader', 'CLoader',
-        'CBaseDumper', 'CSafeDumper', 'CDumper']
-
-from _yaml import CParser, CEmitter
-
-from .constructor import *
-
-from .serializer import *
-from .representer import *
-
-from .resolver import *
-
-class CBaseLoader(CParser, BaseConstructor, BaseResolver):
-
-    def __init__(self, stream):
-        CParser.__init__(self, stream)
-        BaseConstructor.__init__(self)
-        BaseResolver.__init__(self)
-
-class CSafeLoader(CParser, SafeConstructor, Resolver):
-
-    def __init__(self, stream):
-        CParser.__init__(self, stream)
-        SafeConstructor.__init__(self)
-        Resolver.__init__(self)
-
-class CLoader(CParser, Constructor, Resolver):
-
-    def __init__(self, stream):
-        CParser.__init__(self, stream)
-        Constructor.__init__(self)
-        Resolver.__init__(self)
-
-class CBaseDumper(CEmitter, BaseRepresenter, BaseResolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        CEmitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width, encoding=encoding,
-                allow_unicode=allow_unicode, line_break=line_break,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        Representer.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
-class CSafeDumper(CEmitter, SafeRepresenter, Resolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        CEmitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width, encoding=encoding,
-                allow_unicode=allow_unicode, line_break=line_break,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        SafeRepresenter.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
-class CDumper(CEmitter, Serializer, Representer, Resolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        CEmitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width, encoding=encoding,
-                allow_unicode=allow_unicode, line_break=line_break,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        Representer.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/dumper.py b/collectors/python.d.plugin/python_modules/pyyaml3/dumper.py
deleted file mode 100644
index ba590c6e6..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/dumper.py
+++ /dev/null
@@ -1,63 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['BaseDumper', 'SafeDumper', 'Dumper']
-
-from .emitter import *
-from .serializer import *
-from .representer import *
-from .resolver import *
-
-class BaseDumper(Emitter, Serializer, BaseRepresenter, BaseResolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        Emitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width,
-                allow_unicode=allow_unicode, line_break=line_break)
-        Serializer.__init__(self, encoding=encoding,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        Representer.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
-class SafeDumper(Emitter, Serializer, SafeRepresenter, Resolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        Emitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width,
-                allow_unicode=allow_unicode, line_break=line_break)
-        Serializer.__init__(self, encoding=encoding,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        SafeRepresenter.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
-class Dumper(Emitter, Serializer, Representer, Resolver):
-
-    def __init__(self, stream,
-            default_style=None, default_flow_style=None,
-            canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None,
-            encoding=None, explicit_start=None, explicit_end=None,
-            version=None, tags=None):
-        Emitter.__init__(self, stream, canonical=canonical,
-                indent=indent, width=width,
-                allow_unicode=allow_unicode, line_break=line_break)
-        Serializer.__init__(self, encoding=encoding,
-                explicit_start=explicit_start, explicit_end=explicit_end,
-                version=version, tags=tags)
-        Representer.__init__(self, default_style=default_style,
-                default_flow_style=default_flow_style)
-        Resolver.__init__(self)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/emitter.py b/collectors/python.d.plugin/python_modules/pyyaml3/emitter.py
deleted file mode 100644
index d4be65a8e..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/emitter.py
+++ /dev/null
@@ -1,1138 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-# Emitter expects events obeying the following grammar:
-# stream ::= STREAM-START document* STREAM-END
-# document ::= DOCUMENT-START node DOCUMENT-END
-# node ::= SCALAR | sequence | mapping
-# sequence ::= SEQUENCE-START node* SEQUENCE-END
-# mapping ::= MAPPING-START (node node)* MAPPING-END
-
-__all__ = ['Emitter', 'EmitterError']
-
-from .error import YAMLError
-from .events import *
-
-class EmitterError(YAMLError):
-    pass
-
-class ScalarAnalysis:
-    def __init__(self, scalar, empty, multiline,
-            allow_flow_plain, allow_block_plain,
-            allow_single_quoted, allow_double_quoted,
-            allow_block):
-        self.scalar = scalar
-        self.empty = empty
-        self.multiline = multiline
-        self.allow_flow_plain = allow_flow_plain
-        self.allow_block_plain = allow_block_plain
-        self.allow_single_quoted = allow_single_quoted
-        self.allow_double_quoted = allow_double_quoted
-        self.allow_block = allow_block
-
-class Emitter:
-
-    DEFAULT_TAG_PREFIXES = {
-        '!' : '!',
-        'tag:yaml.org,2002:' : '!!',
-    }
-
-    def __init__(self, stream, canonical=None, indent=None, width=None,
-            allow_unicode=None, line_break=None):
-
-        # The stream should have the methods `write` and possibly `flush`.
-        self.stream = stream
-
-        # Encoding can be overriden by STREAM-START.
-        self.encoding = None
-
-        # Emitter is a state machine with a stack of states to handle nested
-        # structures.
-        self.states = []
-        self.state = self.expect_stream_start
-
-        # Current event and the event queue.
-        self.events = []
-        self.event = None
-
-        # The current indentation level and the stack of previous indents.
-        self.indents = []
-        self.indent = None
-
-        # Flow level.
-        self.flow_level = 0
-
-        # Contexts.
-        self.root_context = False
-        self.sequence_context = False
-        self.mapping_context = False
-        self.simple_key_context = False
-
-        # Characteristics of the last emitted character:
-        #  - current position.
-        #  - is it a whitespace?
-        #  - is it an indention character
-        #    (indentation space, '-', '?', or ':')?
-        self.line = 0
-        self.column = 0
-        self.whitespace = True
-        self.indention = True
-
-        # Whether the document requires an explicit document indicator
-        self.open_ended = False
-
-        # Formatting details.
-        self.canonical = canonical
-        self.allow_unicode = allow_unicode
-        self.best_indent = 2
-        if indent and 1 < indent < 10:
-            self.best_indent = indent
-        self.best_width = 80
-        if width and width > self.best_indent*2:
-            self.best_width = width
-        self.best_line_break = '\n'
-        if line_break in ['\r', '\n', '\r\n']:
-            self.best_line_break = line_break
-
-        # Tag prefixes.
-        self.tag_prefixes = None
-
-        # Prepared anchor and tag.
-        self.prepared_anchor = None
-        self.prepared_tag = None
-
-        # Scalar analysis and style.
-        self.analysis = None
-        self.style = None
-
-    def dispose(self):
-        # Reset the state attributes (to clear self-references)
-        self.states = []
-        self.state = None
-
-    def emit(self, event):
-        self.events.append(event)
-        while not self.need_more_events():
-            self.event = self.events.pop(0)
-            self.state()
-            self.event = None
-
-    # In some cases, we wait for a few next events before emitting.
-
-    def need_more_events(self):
-        if not self.events:
-            return True
-        event = self.events[0]
-        if isinstance(event, DocumentStartEvent):
-            return self.need_events(1)
-        elif isinstance(event, SequenceStartEvent):
-            return self.need_events(2)
-        elif isinstance(event, MappingStartEvent):
-            return self.need_events(3)
-        else:
-            return False
-
-    def need_events(self, count):
-        level = 0
-        for event in self.events[1:]:
-            if isinstance(event, (DocumentStartEvent, CollectionStartEvent)):
-                level += 1
-            elif isinstance(event, (DocumentEndEvent, CollectionEndEvent)):
-                level -= 1
-            elif isinstance(event, StreamEndEvent):
-                level = -1
-            if level < 0:
-                return False
-        return (len(self.events) < count+1)
-
-    def increase_indent(self, flow=False, indentless=False):
-        self.indents.append(self.indent)
-        if self.indent is None:
-            if flow:
-                self.indent = self.best_indent
-            else:
-                self.indent = 0
-        elif not indentless:
-            self.indent += self.best_indent
-
-    # States.
-
-    # Stream handlers.
-
-    def expect_stream_start(self):
-        if isinstance(self.event, StreamStartEvent):
-            if self.event.encoding and not hasattr(self.stream, 'encoding'):
-                self.encoding = self.event.encoding
-            self.write_stream_start()
-            self.state = self.expect_first_document_start
-        else:
-            raise EmitterError("expected StreamStartEvent, but got %s"
-                    % self.event)
-
-    def expect_nothing(self):
-        raise EmitterError("expected nothing, but got %s" % self.event)
-
-    # Document handlers.
-
-    def expect_first_document_start(self):
-        return self.expect_document_start(first=True)
-
-    def expect_document_start(self, first=False):
-        if isinstance(self.event, DocumentStartEvent):
-            if (self.event.version or self.event.tags) and self.open_ended:
-                self.write_indicator('...', True)
-                self.write_indent()
-            if self.event.version:
-                version_text = self.prepare_version(self.event.version)
-                self.write_version_directive(version_text)
-            self.tag_prefixes = self.DEFAULT_TAG_PREFIXES.copy()
-            if self.event.tags:
-                handles = sorted(self.event.tags.keys())
-                for handle in handles:
-                    prefix = self.event.tags[handle]
-                    self.tag_prefixes[prefix] = handle
-                    handle_text = self.prepare_tag_handle(handle)
-                    prefix_text = self.prepare_tag_prefix(prefix)
-                    self.write_tag_directive(handle_text, prefix_text)
-            implicit = (first and not self.event.explicit and not self.canonical
-                    and not self.event.version and not self.event.tags
-                    and not self.check_empty_document())
-            if not implicit:
-                self.write_indent()
-                self.write_indicator('---', True)
-                if self.canonical:
-                    self.write_indent()
-            self.state = self.expect_document_root
-        elif isinstance(self.event, StreamEndEvent):
-            if self.open_ended:
-                self.write_indicator('...', True)
-                self.write_indent()
-            self.write_stream_end()
-            self.state = self.expect_nothing
-        else:
-            raise EmitterError("expected DocumentStartEvent, but got %s"
-                    % self.event)
-
-    def expect_document_end(self):
-        if isinstance(self.event, DocumentEndEvent):
-            self.write_indent()
-            if self.event.explicit:
-                self.write_indicator('...', True)
-                self.write_indent()
-            self.flush_stream()
-            self.state = self.expect_document_start
-        else:
-            raise EmitterError("expected DocumentEndEvent, but got %s"
-                    % self.event)
-
-    def expect_document_root(self):
-        self.states.append(self.expect_document_end)
-        self.expect_node(root=True)
-
-    # Node handlers.
-
-    def expect_node(self, root=False, sequence=False, mapping=False,
-            simple_key=False):
-        self.root_context = root
-        self.sequence_context = sequence
-        self.mapping_context = mapping
-        self.simple_key_context = simple_key
-        if isinstance(self.event, AliasEvent):
-            self.expect_alias()
-        elif isinstance(self.event, (ScalarEvent, CollectionStartEvent)):
-            self.process_anchor('&')
-            self.process_tag()
-            if isinstance(self.event, ScalarEvent):
-                self.expect_scalar()
-            elif isinstance(self.event, SequenceStartEvent):
-                if self.flow_level or self.canonical or self.event.flow_style   \
-                        or self.check_empty_sequence():
-                    self.expect_flow_sequence()
-                else:
-                    self.expect_block_sequence()
-            elif isinstance(self.event, MappingStartEvent):
-                if self.flow_level or self.canonical or self.event.flow_style   \
-                        or self.check_empty_mapping():
-                    self.expect_flow_mapping()
-                else:
-                    self.expect_block_mapping()
-        else:
-            raise EmitterError("expected NodeEvent, but got %s" % self.event)
-
-    def expect_alias(self):
-        if self.event.anchor is None:
-            raise EmitterError("anchor is not specified for alias")
-        self.process_anchor('*')
-        self.state = self.states.pop()
-
-    def expect_scalar(self):
-        self.increase_indent(flow=True)
-        self.process_scalar()
-        self.indent = self.indents.pop()
-        self.state = self.states.pop()
-
-    # Flow sequence handlers.
-
-    def expect_flow_sequence(self):
-        self.write_indicator('[', True, whitespace=True)
-        self.flow_level += 1
-        self.increase_indent(flow=True)
-        self.state = self.expect_first_flow_sequence_item
-
-    def expect_first_flow_sequence_item(self):
-        if isinstance(self.event, SequenceEndEvent):
-            self.indent = self.indents.pop()
-            self.flow_level -= 1
-            self.write_indicator(']', False)
-            self.state = self.states.pop()
-        else:
-            if self.canonical or self.column > self.best_width:
-                self.write_indent()
-            self.states.append(self.expect_flow_sequence_item)
-            self.expect_node(sequence=True)
-
-    def expect_flow_sequence_item(self):
-        if isinstance(self.event, SequenceEndEvent):
-            self.indent = self.indents.pop()
-            self.flow_level -= 1
-            if self.canonical:
-                self.write_indicator(',', False)
-                self.write_indent()
-            self.write_indicator(']', False)
-            self.state = self.states.pop()
-        else:
-            self.write_indicator(',', False)
-            if self.canonical or self.column > self.best_width:
-                self.write_indent()
-            self.states.append(self.expect_flow_sequence_item)
-            self.expect_node(sequence=True)
-
-    # Flow mapping handlers.
-
-    def expect_flow_mapping(self):
-        self.write_indicator('{', True, whitespace=True)
-        self.flow_level += 1
-        self.increase_indent(flow=True)
-        self.state = self.expect_first_flow_mapping_key
-
-    def expect_first_flow_mapping_key(self):
-        if isinstance(self.event, MappingEndEvent):
-            self.indent = self.indents.pop()
-            self.flow_level -= 1
-            self.write_indicator('}', False)
-            self.state = self.states.pop()
-        else:
-            if self.canonical or self.column > self.best_width:
-                self.write_indent()
-            if not self.canonical and self.check_simple_key():
-                self.states.append(self.expect_flow_mapping_simple_value)
-                self.expect_node(mapping=True, simple_key=True)
-            else:
-                self.write_indicator('?', True)
-                self.states.append(self.expect_flow_mapping_value)
-                self.expect_node(mapping=True)
-
-    def expect_flow_mapping_key(self):
-        if isinstance(self.event, MappingEndEvent):
-            self.indent = self.indents.pop()
-            self.flow_level -= 1
-            if self.canonical:
-                self.write_indicator(',', False)
-                self.write_indent()
-            self.write_indicator('}', False)
-            self.state = self.states.pop()
-        else:
-            self.write_indicator(',', False)
-            if self.canonical or self.column > self.best_width:
-                self.write_indent()
-            if not self.canonical and self.check_simple_key():
-                self.states.append(self.expect_flow_mapping_simple_value)
-                self.expect_node(mapping=True, simple_key=True)
-            else:
-                self.write_indicator('?', True)
-                self.states.append(self.expect_flow_mapping_value)
-                self.expect_node(mapping=True)
-
-    def expect_flow_mapping_simple_value(self):
-        self.write_indicator(':', False)
-        self.states.append(self.expect_flow_mapping_key)
-        self.expect_node(mapping=True)
-
-    def expect_flow_mapping_value(self):
-        if self.canonical or self.column > self.best_width:
-            self.write_indent()
-        self.write_indicator(':', True)
-        self.states.append(self.expect_flow_mapping_key)
-        self.expect_node(mapping=True)
-
-    # Block sequence handlers.
-
-    def expect_block_sequence(self):
-        indentless = (self.mapping_context and not self.indention)
-        self.increase_indent(flow=False, indentless=indentless)
-        self.state = self.expect_first_block_sequence_item
-
-    def expect_first_block_sequence_item(self):
-        return self.expect_block_sequence_item(first=True)
-
-    def expect_block_sequence_item(self, first=False):
-        if not first and isinstance(self.event, SequenceEndEvent):
-            self.indent = self.indents.pop()
-            self.state = self.states.pop()
-        else:
-            self.write_indent()
-            self.write_indicator('-', True, indention=True)
-            self.states.append(self.expect_block_sequence_item)
-            self.expect_node(sequence=True)
-
-    # Block mapping handlers.
-
-    def expect_block_mapping(self):
-        self.increase_indent(flow=False)
-        self.state = self.expect_first_block_mapping_key
-
-    def expect_first_block_mapping_key(self):
-        return self.expect_block_mapping_key(first=True)
-
-    def expect_block_mapping_key(self, first=False):
-        if not first and isinstance(self.event, MappingEndEvent):
-            self.indent = self.indents.pop()
-            self.state = self.states.pop()
-        else:
-            self.write_indent()
-            if self.check_simple_key():
-                self.states.append(self.expect_block_mapping_simple_value)
-                self.expect_node(mapping=True, simple_key=True)
-            else:
-                self.write_indicator('?', True, indention=True)
-                self.states.append(self.expect_block_mapping_value)
-                self.expect_node(mapping=True)
-
-    def expect_block_mapping_simple_value(self):
-        self.write_indicator(':', False)
-        self.states.append(self.expect_block_mapping_key)
-        self.expect_node(mapping=True)
-
-    def expect_block_mapping_value(self):
-        self.write_indent()
-        self.write_indicator(':', True, indention=True)
-        self.states.append(self.expect_block_mapping_key)
-        self.expect_node(mapping=True)
-
-    # Checkers.
-
-    def check_empty_sequence(self):
-        return (isinstance(self.event, SequenceStartEvent) and self.events
-                and isinstance(self.events[0], SequenceEndEvent))
-
-    def check_empty_mapping(self):
-        return (isinstance(self.event, MappingStartEvent) and self.events
-                and isinstance(self.events[0], MappingEndEvent))
-
-    def check_empty_document(self):
-        if not isinstance(self.event, DocumentStartEvent) or not self.events:
-            return False
-        event = self.events[0]
-        return (isinstance(event, ScalarEvent) and event.anchor is None
-                and event.tag is None and event.implicit and event.value == '')
-
-    def check_simple_key(self):
-        length = 0
-        if isinstance(self.event, NodeEvent) and self.event.anchor is not None:
-            if self.prepared_anchor is None:
-                self.prepared_anchor = self.prepare_anchor(self.event.anchor)
-            length += len(self.prepared_anchor)
-        if isinstance(self.event, (ScalarEvent, CollectionStartEvent))  \
-                and self.event.tag is not None:
-            if self.prepared_tag is None:
-                self.prepared_tag = self.prepare_tag(self.event.tag)
-            length += len(self.prepared_tag)
-        if isinstance(self.event, ScalarEvent):
-            if self.analysis is None:
-                self.analysis = self.analyze_scalar(self.event.value)
-            length += len(self.analysis.scalar)
-        return (length < 128 and (isinstance(self.event, AliasEvent)
-            or (isinstance(self.event, ScalarEvent)
-                    and not self.analysis.empty and not self.analysis.multiline)
-            or self.check_empty_sequence() or self.check_empty_mapping()))
-
-    # Anchor, Tag, and Scalar processors.
-
-    def process_anchor(self, indicator):
-        if self.event.anchor is None:
-            self.prepared_anchor = None
-            return
-        if self.prepared_anchor is None:
-            self.prepared_anchor = self.prepare_anchor(self.event.anchor)
-        if self.prepared_anchor:
-            self.write_indicator(indicator+self.prepared_anchor, True)
-        self.prepared_anchor = None
-
-    def process_tag(self):
-        tag = self.event.tag
-        if isinstance(self.event, ScalarEvent):
-            if self.style is None:
-                self.style = self.choose_scalar_style()
-            if ((not self.canonical or tag is None) and
-                ((self.style == '' and self.event.implicit[0])
-                        or (self.style != '' and self.event.implicit[1]))):
-                self.prepared_tag = None
-                return
-            if self.event.implicit[0] and tag is None:
-                tag = '!'
-                self.prepared_tag = None
-        else:
-            if (not self.canonical or tag is None) and self.event.implicit:
-                self.prepared_tag = None
-                return
-        if tag is None:
-            raise EmitterError("tag is not specified")
-        if self.prepared_tag is None:
-            self.prepared_tag = self.prepare_tag(tag)
-        if self.prepared_tag:
-            self.write_indicator(self.prepared_tag, True)
-        self.prepared_tag = None
-
-    def choose_scalar_style(self):
-        if self.analysis is None:
-            self.analysis = self.analyze_scalar(self.event.value)
-        if self.event.style == '"' or self.canonical:
-            return '"'
-        if not self.event.style and self.event.implicit[0]:
-            if (not (self.simple_key_context and
-                    (self.analysis.empty or self.analysis.multiline))
-                and (self.flow_level and self.analysis.allow_flow_plain
-                    or (not self.flow_level and self.analysis.allow_block_plain))):
-                return ''
-        if self.event.style and self.event.style in '|>':
-            if (not self.flow_level and not self.simple_key_context
-                    and self.analysis.allow_block):
-                return self.event.style
-        if not self.event.style or self.event.style == '\'':
-            if (self.analysis.allow_single_quoted and
-                    not (self.simple_key_context and self.analysis.multiline)):
-                return '\''
-        return '"'
-
-    def process_scalar(self):
-        if self.analysis is None:
-            self.analysis = self.analyze_scalar(self.event.value)
-        if self.style is None:
-            self.style = self.choose_scalar_style()
-        split = (not self.simple_key_context)
-        #if self.analysis.multiline and split    \
-        #        and (not self.style or self.style in '\'\"'):
-        #    self.write_indent()
-        if self.style == '"':
-            self.write_double_quoted(self.analysis.scalar, split)
-        elif self.style == '\'':
-            self.write_single_quoted(self.analysis.scalar, split)
-        elif self.style == '>':
-            self.write_folded(self.analysis.scalar)
-        elif self.style == '|':
-            self.write_literal(self.analysis.scalar)
-        else:
-            self.write_plain(self.analysis.scalar, split)
-        self.analysis = None
-        self.style = None
-
-    # Analyzers.
-
-    def prepare_version(self, version):
-        major, minor = version
-        if major != 1:
-            raise EmitterError("unsupported YAML version: %d.%d" % (major, minor))
-        return '%d.%d' % (major, minor)
-
-    def prepare_tag_handle(self, handle):
-        if not handle:
-            raise EmitterError("tag handle must not be empty")
-        if handle[0] != '!' or handle[-1] != '!':
-            raise EmitterError("tag handle must start and end with '!': %r" % handle)
-        for ch in handle[1:-1]:
-            if not ('0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z'    \
-                    or ch in '-_'):
-                raise EmitterError("invalid character %r in the tag handle: %r"
-                        % (ch, handle))
-        return handle
-
-    def prepare_tag_prefix(self, prefix):
-        if not prefix:
-            raise EmitterError("tag prefix must not be empty")
-        chunks = []
-        start = end = 0
-        if prefix[0] == '!':
-            end = 1
-        while end < len(prefix):
-            ch = prefix[end]
-            if '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z' \
-                    or ch in '-;/?!:@&=+$,_.~*\'()[]':
-                end += 1
-            else:
-                if start < end:
-                    chunks.append(prefix[start:end])
-                start = end = end+1
-                data = ch.encode('utf-8')
-                for ch in data:
-                    chunks.append('%%%02X' % ord(ch))
-        if start < end:
-            chunks.append(prefix[start:end])
-        return ''.join(chunks)
-
-    def prepare_tag(self, tag):
-        if not tag:
-            raise EmitterError("tag must not be empty")
-        if tag == '!':
-            return tag
-        handle = None
-        suffix = tag
-        prefixes = sorted(self.tag_prefixes.keys())
-        for prefix in prefixes:
-            if tag.startswith(prefix)   \
-                    and (prefix == '!' or len(prefix) < len(tag)):
-                handle = self.tag_prefixes[prefix]
-                suffix = tag[len(prefix):]
-        chunks = []
-        start = end = 0
-        while end < len(suffix):
-            ch = suffix[end]
-            if '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z' \
-                    or ch in '-;/?:@&=+$,_.~*\'()[]'   \
-                    or (ch == '!' and handle != '!'):
-                end += 1
-            else:
-                if start < end:
-                    chunks.append(suffix[start:end])
-                start = end = end+1
-                data = ch.encode('utf-8')
-                for ch in data:
-                    chunks.append('%%%02X' % ord(ch))
-        if start < end:
-            chunks.append(suffix[start:end])
-        suffix_text = ''.join(chunks)
-        if handle:
-            return '%s%s' % (handle, suffix_text)
-        else:
-            return '!<%s>' % suffix_text
-
-    def prepare_anchor(self, anchor):
-        if not anchor:
-            raise EmitterError("anchor must not be empty")
-        for ch in anchor:
-            if not ('0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z'    \
-                    or ch in '-_'):
-                raise EmitterError("invalid character %r in the anchor: %r"
-                        % (ch, anchor))
-        return anchor
-
-    def analyze_scalar(self, scalar):
-
-        # Empty scalar is a special case.
-        if not scalar:
-            return ScalarAnalysis(scalar=scalar, empty=True, multiline=False,
-                    allow_flow_plain=False, allow_block_plain=True,
-                    allow_single_quoted=True, allow_double_quoted=True,
-                    allow_block=False)
-
-        # Indicators and special characters.
-        block_indicators = False
-        flow_indicators = False
-        line_breaks = False
-        special_characters = False
-
-        # Important whitespace combinations.
-        leading_space = False
-        leading_break = False
-        trailing_space = False
-        trailing_break = False
-        break_space = False
-        space_break = False
-
-        # Check document indicators.
-        if scalar.startswith('---') or scalar.startswith('...'):
-            block_indicators = True
-            flow_indicators = True
-
-        # First character or preceded by a whitespace.
-        preceeded_by_whitespace = True
-
-        # Last character or followed by a whitespace.
-        followed_by_whitespace = (len(scalar) == 1 or
-                scalar[1] in '\0 \t\r\n\x85\u2028\u2029')
-
-        # The previous character is a space.
-        previous_space = False
-
-        # The previous character is a break.
-        previous_break = False
-
-        index = 0
-        while index < len(scalar):
-            ch = scalar[index]
-
-            # Check for indicators.
-            if index == 0:
-                # Leading indicators are special characters.
-                if ch in '#,[]{}&*!|>\'\"%@`': 
-                    flow_indicators = True
-                    block_indicators = True
-                if ch in '?:':
-                    flow_indicators = True
-                    if followed_by_whitespace:
-                        block_indicators = True
-                if ch == '-' and followed_by_whitespace:
-                    flow_indicators = True
-                    block_indicators = True
-            else:
-                # Some indicators cannot appear within a scalar as well.
-                if ch in ',?[]{}':
-                    flow_indicators = True
-                if ch == ':':
-                    flow_indicators = True
-                    if followed_by_whitespace:
-                        block_indicators = True
-                if ch == '#' and preceeded_by_whitespace:
-                    flow_indicators = True
-                    block_indicators = True
-
-            # Check for line breaks, special, and unicode characters.
-            if ch in '\n\x85\u2028\u2029':
-                line_breaks = True
-            if not (ch == '\n' or '\x20' <= ch <= '\x7E'):
-                if (ch == '\x85' or '\xA0' <= ch <= '\uD7FF'
-                        or '\uE000' <= ch <= '\uFFFD') and ch != '\uFEFF':
-                    unicode_characters = True
-                    if not self.allow_unicode:
-                        special_characters = True
-                else:
-                    special_characters = True
-
-            # Detect important whitespace combinations.
-            if ch == ' ':
-                if index == 0:
-                    leading_space = True
-                if index == len(scalar)-1:
-                    trailing_space = True
-                if previous_break:
-                    break_space = True
-                previous_space = True
-                previous_break = False
-            elif ch in '\n\x85\u2028\u2029':
-                if index == 0:
-                    leading_break = True
-                if index == len(scalar)-1:
-                    trailing_break = True
-                if previous_space:
-                    space_break = True
-                previous_space = False
-                previous_break = True
-            else:
-                previous_space = False
-                previous_break = False
-
-            # Prepare for the next character.
-            index += 1
-            preceeded_by_whitespace = (ch in '\0 \t\r\n\x85\u2028\u2029')
-            followed_by_whitespace = (index+1 >= len(scalar) or
-                    scalar[index+1] in '\0 \t\r\n\x85\u2028\u2029')
-
-        # Let's decide what styles are allowed.
-        allow_flow_plain = True
-        allow_block_plain = True
-        allow_single_quoted = True
-        allow_double_quoted = True
-        allow_block = True
-
-        # Leading and trailing whitespaces are bad for plain scalars.
-        if (leading_space or leading_break
-                or trailing_space or trailing_break):
-            allow_flow_plain = allow_block_plain = False
-
-        # We do not permit trailing spaces for block scalars.
-        if trailing_space:
-            allow_block = False
-
-        # Spaces at the beginning of a new line are only acceptable for block
-        # scalars.
-        if break_space:
-            allow_flow_plain = allow_block_plain = allow_single_quoted = False
-
-        # Spaces followed by breaks, as well as special character are only
-        # allowed for double quoted scalars.
-        if space_break or special_characters:
-            allow_flow_plain = allow_block_plain =  \
-            allow_single_quoted = allow_block = False
-
-        # Although the plain scalar writer supports breaks, we never emit
-        # multiline plain scalars.
-        if line_breaks:
-            allow_flow_plain = allow_block_plain = False
-
-        # Flow indicators are forbidden for flow plain scalars.
-        if flow_indicators:
-            allow_flow_plain = False
-
-        # Block indicators are forbidden for block plain scalars.
-        if block_indicators:
-            allow_block_plain = False
-
-        return ScalarAnalysis(scalar=scalar,
-                empty=False, multiline=line_breaks,
-                allow_flow_plain=allow_flow_plain,
-                allow_block_plain=allow_block_plain,
-                allow_single_quoted=allow_single_quoted,
-                allow_double_quoted=allow_double_quoted,
-                allow_block=allow_block)
-
-    # Writers.
-
-    def flush_stream(self):
-        if hasattr(self.stream, 'flush'):
-            self.stream.flush()
-
-    def write_stream_start(self):
-        # Write BOM if needed.
-        if self.encoding and self.encoding.startswith('utf-16'):
-            self.stream.write('\uFEFF'.encode(self.encoding))
-
-    def write_stream_end(self):
-        self.flush_stream()
-
-    def write_indicator(self, indicator, need_whitespace,
-            whitespace=False, indention=False):
-        if self.whitespace or not need_whitespace:
-            data = indicator
-        else:
-            data = ' '+indicator
-        self.whitespace = whitespace
-        self.indention = self.indention and indention
-        self.column += len(data)
-        self.open_ended = False
-        if self.encoding:
-            data = data.encode(self.encoding)
-        self.stream.write(data)
-
-    def write_indent(self):
-        indent = self.indent or 0
-        if not self.indention or self.column > indent   \
-                or (self.column == indent and not self.whitespace):
-            self.write_line_break()
-        if self.column < indent:
-            self.whitespace = True
-            data = ' '*(indent-self.column)
-            self.column = indent
-            if self.encoding:
-                data = data.encode(self.encoding)
-            self.stream.write(data)
-
-    def write_line_break(self, data=None):
-        if data is None:
-            data = self.best_line_break
-        self.whitespace = True
-        self.indention = True
-        self.line += 1
-        self.column = 0
-        if self.encoding:
-            data = data.encode(self.encoding)
-        self.stream.write(data)
-
-    def write_version_directive(self, version_text):
-        data = '%%YAML %s' % version_text
-        if self.encoding:
-            data = data.encode(self.encoding)
-        self.stream.write(data)
-        self.write_line_break()
-
-    def write_tag_directive(self, handle_text, prefix_text):
-        data = '%%TAG %s %s' % (handle_text, prefix_text)
-        if self.encoding:
-            data = data.encode(self.encoding)
-        self.stream.write(data)
-        self.write_line_break()
-
-    # Scalar streams.
-
-    def write_single_quoted(self, text, split=True):
-        self.write_indicator('\'', True)
-        spaces = False
-        breaks = False
-        start = end = 0
-        while end <= len(text):
-            ch = None
-            if end < len(text):
-                ch = text[end]
-            if spaces:
-                if ch is None or ch != ' ':
-                    if start+1 == end and self.column > self.best_width and split   \
-                            and start != 0 and end != len(text):
-                        self.write_indent()
-                    else:
-                        data = text[start:end]
-                        self.column += len(data)
-                        if self.encoding:
-                            data = data.encode(self.encoding)
-                        self.stream.write(data)
-                    start = end
-            elif breaks:
-                if ch is None or ch not in '\n\x85\u2028\u2029':
-                    if text[start] == '\n':
-                        self.write_line_break()
-                    for br in text[start:end]:
-                        if br == '\n':
-                            self.write_line_break()
-                        else:
-                            self.write_line_break(br)
-                    self.write_indent()
-                    start = end
-            else:
-                if ch is None or ch in ' \n\x85\u2028\u2029' or ch == '\'':
-                    if start < end:
-                        data = text[start:end]
-                        self.column += len(data)
-                        if self.encoding:
-                            data = data.encode(self.encoding)
-                        self.stream.write(data)
-                        start = end
-            if ch == '\'':
-                data = '\'\''
-                self.column += 2
-                if self.encoding:
-                    data = data.encode(self.encoding)
-                self.stream.write(data)
-                start = end + 1
-            if ch is not None:
-                spaces = (ch == ' ')
-                breaks = (ch in '\n\x85\u2028\u2029')
-            end += 1
-        self.write_indicator('\'', False)
-
-    ESCAPE_REPLACEMENTS = {
-        '\0':       '0',
-        '\x07':     'a',
-        '\x08':     'b',
-        '\x09':     't',
-        '\x0A':     'n',
-        '\x0B':     'v',
-        '\x0C':     'f',
-        '\x0D':     'r',
-        '\x1B':     'e',
-        '\"':       '\"',
-        '\\':       '\\',
-        '\x85':     'N',
-        '\xA0':     '_',
-        '\u2028':   'L',
-        '\u2029':   'P',
-    }
-
-    def write_double_quoted(self, text, split=True):
-        self.write_indicator('"', True)
-        start = end = 0
-        while end <= len(text):
-            ch = None
-            if end < len(text):
-                ch = text[end]
-            if ch is None or ch in '"\\\x85\u2028\u2029\uFEFF' \
-                    or not ('\x20' <= ch <= '\x7E'
-                        or (self.allow_unicode
-                            and ('\xA0' <= ch <= '\uD7FF'
-                                or '\uE000' <= ch <= '\uFFFD'))):
-                if start < end:
-                    data = text[start:end]
-                    self.column += len(data)
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-                    start = end
-                if ch is not None:
-                    if ch in self.ESCAPE_REPLACEMENTS:
-                        data = '\\'+self.ESCAPE_REPLACEMENTS[ch]
-                    elif ch <= '\xFF':
-                        data = '\\x%02X' % ord(ch)
-                    elif ch <= '\uFFFF':
-                        data = '\\u%04X' % ord(ch)
-                    else:
-                        data = '\\U%08X' % ord(ch)
-                    self.column += len(data)
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-                    start = end+1
-            if 0 < end < len(text)-1 and (ch == ' ' or start >= end)    \
-                    and self.column+(end-start) > self.best_width and split:
-                data = text[start:end]+'\\'
-                if start < end:
-                    start = end
-                self.column += len(data)
-                if self.encoding:
-                    data = data.encode(self.encoding)
-                self.stream.write(data)
-                self.write_indent()
-                self.whitespace = False
-                self.indention = False
-                if text[start] == ' ':
-                    data = '\\'
-                    self.column += len(data)
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-            end += 1
-        self.write_indicator('"', False)
-
-    def determine_block_hints(self, text):
-        hints = ''
-        if text:
-            if text[0] in ' \n\x85\u2028\u2029':
-                hints += str(self.best_indent)
-            if text[-1] not in '\n\x85\u2028\u2029':
-                hints += '-'
-            elif len(text) == 1 or text[-2] in '\n\x85\u2028\u2029':
-                hints += '+'
-        return hints
-
-    def write_folded(self, text):
-        hints = self.determine_block_hints(text)
-        self.write_indicator('>'+hints, True)
-        if hints[-1:] == '+':
-            self.open_ended = True
-        self.write_line_break()
-        leading_space = True
-        spaces = False
-        breaks = True
-        start = end = 0
-        while end <= len(text):
-            ch = None
-            if end < len(text):
-                ch = text[end]
-            if breaks:
-                if ch is None or ch not in '\n\x85\u2028\u2029':
-                    if not leading_space and ch is not None and ch != ' '   \
-                            and text[start] == '\n':
-                        self.write_line_break()
-                    leading_space = (ch == ' ')
-                    for br in text[start:end]:
-                        if br == '\n':
-                            self.write_line_break()
-                        else:
-                            self.write_line_break(br)
-                    if ch is not None:
-                        self.write_indent()
-                    start = end
-            elif spaces:
-                if ch != ' ':
-                    if start+1 == end and self.column > self.best_width:
-                        self.write_indent()
-                    else:
-                        data = text[start:end]
-                        self.column += len(data)
-                        if self.encoding:
-                            data = data.encode(self.encoding)
-                        self.stream.write(data)
-                    start = end
-            else:
-                if ch is None or ch in ' \n\x85\u2028\u2029':
-                    data = text[start:end]
-                    self.column += len(data)
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-                    if ch is None:
-                        self.write_line_break()
-                    start = end
-            if ch is not None:
-                breaks = (ch in '\n\x85\u2028\u2029')
-                spaces = (ch == ' ')
-            end += 1
-
-    def write_literal(self, text):
-        hints = self.determine_block_hints(text)
-        self.write_indicator('|'+hints, True)
-        if hints[-1:] == '+':
-            self.open_ended = True
-        self.write_line_break()
-        breaks = True
-        start = end = 0
-        while end <= len(text):
-            ch = None
-            if end < len(text):
-                ch = text[end]
-            if breaks:
-                if ch is None or ch not in '\n\x85\u2028\u2029':
-                    for br in text[start:end]:
-                        if br == '\n':
-                            self.write_line_break()
-                        else:
-                            self.write_line_break(br)
-                    if ch is not None:
-                        self.write_indent()
-                    start = end
-            else:
-                if ch is None or ch in '\n\x85\u2028\u2029':
-                    data = text[start:end]
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-                    if ch is None:
-                        self.write_line_break()
-                    start = end
-            if ch is not None:
-                breaks = (ch in '\n\x85\u2028\u2029')
-            end += 1
-
-    def write_plain(self, text, split=True):
-        if self.root_context:
-            self.open_ended = True
-        if not text:
-            return
-        if not self.whitespace:
-            data = ' '
-            self.column += len(data)
-            if self.encoding:
-                data = data.encode(self.encoding)
-            self.stream.write(data)
-        self.whitespace = False
-        self.indention = False
-        spaces = False
-        breaks = False
-        start = end = 0
-        while end <= len(text):
-            ch = None
-            if end < len(text):
-                ch = text[end]
-            if spaces:
-                if ch != ' ':
-                    if start+1 == end and self.column > self.best_width and split:
-                        self.write_indent()
-                        self.whitespace = False
-                        self.indention = False
-                    else:
-                        data = text[start:end]
-                        self.column += len(data)
-                        if self.encoding:
-                            data = data.encode(self.encoding)
-                        self.stream.write(data)
-                    start = end
-            elif breaks:
-                if ch not in '\n\x85\u2028\u2029':
-                    if text[start] == '\n':
-                        self.write_line_break()
-                    for br in text[start:end]:
-                        if br == '\n':
-                            self.write_line_break()
-                        else:
-                            self.write_line_break(br)
-                    self.write_indent()
-                    self.whitespace = False
-                    self.indention = False
-                    start = end
-            else:
-                if ch is None or ch in ' \n\x85\u2028\u2029':
-                    data = text[start:end]
-                    self.column += len(data)
-                    if self.encoding:
-                        data = data.encode(self.encoding)
-                    self.stream.write(data)
-                    start = end
-            if ch is not None:
-                spaces = (ch == ' ')
-                breaks = (ch in '\n\x85\u2028\u2029')
-            end += 1
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/error.py b/collectors/python.d.plugin/python_modules/pyyaml3/error.py
deleted file mode 100644
index 5fec7d449..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/error.py
+++ /dev/null
@@ -1,76 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['Mark', 'YAMLError', 'MarkedYAMLError']
-
-class Mark:
-
-    def __init__(self, name, index, line, column, buffer, pointer):
-        self.name = name
-        self.index = index
-        self.line = line
-        self.column = column
-        self.buffer = buffer
-        self.pointer = pointer
-
-    def get_snippet(self, indent=4, max_length=75):
-        if self.buffer is None:
-            return None
-        head = ''
-        start = self.pointer
-        while start > 0 and self.buffer[start-1] not in '\0\r\n\x85\u2028\u2029':
-            start -= 1
-            if self.pointer-start > max_length/2-1:
-                head = ' ... '
-                start += 5
-                break
-        tail = ''
-        end = self.pointer
-        while end < len(self.buffer) and self.buffer[end] not in '\0\r\n\x85\u2028\u2029':
-            end += 1
-            if end-self.pointer > max_length/2-1:
-                tail = ' ... '
-                end -= 5
-                break
-        snippet = self.buffer[start:end]
-        return ' '*indent + head + snippet + tail + '\n'  \
-                + ' '*(indent+self.pointer-start+len(head)) + '^'
-
-    def __str__(self):
-        snippet = self.get_snippet()
-        where = "  in \"%s\", line %d, column %d"   \
-                % (self.name, self.line+1, self.column+1)
-        if snippet is not None:
-            where += ":\n"+snippet
-        return where
-
-class YAMLError(Exception):
-    pass
-
-class MarkedYAMLError(YAMLError):
-
-    def __init__(self, context=None, context_mark=None,
-            problem=None, problem_mark=None, note=None):
-        self.context = context
-        self.context_mark = context_mark
-        self.problem = problem
-        self.problem_mark = problem_mark
-        self.note = note
-
-    def __str__(self):
-        lines = []
-        if self.context is not None:
-            lines.append(self.context)
-        if self.context_mark is not None  \
-            and (self.problem is None or self.problem_mark is None
-                    or self.context_mark.name != self.problem_mark.name
-                    or self.context_mark.line != self.problem_mark.line
-                    or self.context_mark.column != self.problem_mark.column):
-            lines.append(str(self.context_mark))
-        if self.problem is not None:
-            lines.append(self.problem)
-        if self.problem_mark is not None:
-            lines.append(str(self.problem_mark))
-        if self.note is not None:
-            lines.append(self.note)
-        return '\n'.join(lines)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/events.py b/collectors/python.d.plugin/python_modules/pyyaml3/events.py
deleted file mode 100644
index 283452add..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/events.py
+++ /dev/null
@@ -1,87 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-# Abstract classes.
-
-class Event(object):
-    def __init__(self, start_mark=None, end_mark=None):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-    def __repr__(self):
-        attributes = [key for key in ['anchor', 'tag', 'implicit', 'value']
-                if hasattr(self, key)]
-        arguments = ', '.join(['%s=%r' % (key, getattr(self, key))
-                for key in attributes])
-        return '%s(%s)' % (self.__class__.__name__, arguments)
-
-class NodeEvent(Event):
-    def __init__(self, anchor, start_mark=None, end_mark=None):
-        self.anchor = anchor
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-
-class CollectionStartEvent(NodeEvent):
-    def __init__(self, anchor, tag, implicit, start_mark=None, end_mark=None,
-            flow_style=None):
-        self.anchor = anchor
-        self.tag = tag
-        self.implicit = implicit
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.flow_style = flow_style
-
-class CollectionEndEvent(Event):
-    pass
-
-# Implementations.
-
-class StreamStartEvent(Event):
-    def __init__(self, start_mark=None, end_mark=None, encoding=None):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.encoding = encoding
-
-class StreamEndEvent(Event):
-    pass
-
-class DocumentStartEvent(Event):
-    def __init__(self, start_mark=None, end_mark=None,
-            explicit=None, version=None, tags=None):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.explicit = explicit
-        self.version = version
-        self.tags = tags
-
-class DocumentEndEvent(Event):
-    def __init__(self, start_mark=None, end_mark=None,
-            explicit=None):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.explicit = explicit
-
-class AliasEvent(NodeEvent):
-    pass
-
-class ScalarEvent(NodeEvent):
-    def __init__(self, anchor, tag, implicit, value,
-            start_mark=None, end_mark=None, style=None):
-        self.anchor = anchor
-        self.tag = tag
-        self.implicit = implicit
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.style = style
-
-class SequenceStartEvent(CollectionStartEvent):
-    pass
-
-class SequenceEndEvent(CollectionEndEvent):
-    pass
-
-class MappingStartEvent(CollectionStartEvent):
-    pass
-
-class MappingEndEvent(CollectionEndEvent):
-    pass
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/loader.py b/collectors/python.d.plugin/python_modules/pyyaml3/loader.py
deleted file mode 100644
index 7ef6cf815..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/loader.py
+++ /dev/null
@@ -1,41 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['BaseLoader', 'SafeLoader', 'Loader']
-
-from .reader import *
-from .scanner import *
-from .parser import *
-from .composer import *
-from .constructor import *
-from .resolver import *
-
-class BaseLoader(Reader, Scanner, Parser, Composer, BaseConstructor, BaseResolver):
-
-    def __init__(self, stream):
-        Reader.__init__(self, stream)
-        Scanner.__init__(self)
-        Parser.__init__(self)
-        Composer.__init__(self)
-        BaseConstructor.__init__(self)
-        BaseResolver.__init__(self)
-
-class SafeLoader(Reader, Scanner, Parser, Composer, SafeConstructor, Resolver):
-
-    def __init__(self, stream):
-        Reader.__init__(self, stream)
-        Scanner.__init__(self)
-        Parser.__init__(self)
-        Composer.__init__(self)
-        SafeConstructor.__init__(self)
-        Resolver.__init__(self)
-
-class Loader(Reader, Scanner, Parser, Composer, Constructor, Resolver):
-
-    def __init__(self, stream):
-        Reader.__init__(self, stream)
-        Scanner.__init__(self)
-        Parser.__init__(self)
-        Composer.__init__(self)
-        Constructor.__init__(self)
-        Resolver.__init__(self)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/nodes.py b/collectors/python.d.plugin/python_modules/pyyaml3/nodes.py
deleted file mode 100644
index ed2a1b43e..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/nodes.py
+++ /dev/null
@@ -1,50 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-class Node(object):
-    def __init__(self, tag, value, start_mark, end_mark):
-        self.tag = tag
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-    def __repr__(self):
-        value = self.value
-        #if isinstance(value, list):
-        #    if len(value) == 0:
-        #        value = '<empty>'
-        #    elif len(value) == 1:
-        #        value = '<1 item>'
-        #    else:
-        #        value = '<%d items>' % len(value)
-        #else:
-        #    if len(value) > 75:
-        #        value = repr(value[:70]+u' ... ')
-        #    else:
-        #        value = repr(value)
-        value = repr(value)
-        return '%s(tag=%r, value=%s)' % (self.__class__.__name__, self.tag, value)
-
-class ScalarNode(Node):
-    id = 'scalar'
-    def __init__(self, tag, value,
-            start_mark=None, end_mark=None, style=None):
-        self.tag = tag
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.style = style
-
-class CollectionNode(Node):
-    def __init__(self, tag, value,
-            start_mark=None, end_mark=None, flow_style=None):
-        self.tag = tag
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.flow_style = flow_style
-
-class SequenceNode(CollectionNode):
-    id = 'sequence'
-
-class MappingNode(CollectionNode):
-    id = 'mapping'
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/parser.py b/collectors/python.d.plugin/python_modules/pyyaml3/parser.py
deleted file mode 100644
index bcec7f994..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/parser.py
+++ /dev/null
@@ -1,590 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-# The following YAML grammar is LL(1) and is parsed by a recursive descent
-# parser.
-#
-# stream            ::= STREAM-START implicit_document? explicit_document* STREAM-END
-# implicit_document ::= block_node DOCUMENT-END*
-# explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-# block_node_or_indentless_sequence ::=
-#                       ALIAS
-#                       | properties (block_content | indentless_block_sequence)?
-#                       | block_content
-#                       | indentless_block_sequence
-# block_node        ::= ALIAS
-#                       | properties block_content?
-#                       | block_content
-# flow_node         ::= ALIAS
-#                       | properties flow_content?
-#                       | flow_content
-# properties        ::= TAG ANCHOR? | ANCHOR TAG?
-# block_content     ::= block_collection | flow_collection | SCALAR
-# flow_content      ::= flow_collection | SCALAR
-# block_collection  ::= block_sequence | block_mapping
-# flow_collection   ::= flow_sequence | flow_mapping
-# block_sequence    ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
-# indentless_sequence   ::= (BLOCK-ENTRY block_node?)+
-# block_mapping     ::= BLOCK-MAPPING_START
-#                       ((KEY block_node_or_indentless_sequence?)?
-#                       (VALUE block_node_or_indentless_sequence?)?)*
-#                       BLOCK-END
-# flow_sequence     ::= FLOW-SEQUENCE-START
-#                       (flow_sequence_entry FLOW-ENTRY)*
-#                       flow_sequence_entry?
-#                       FLOW-SEQUENCE-END
-# flow_sequence_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-# flow_mapping      ::= FLOW-MAPPING-START
-#                       (flow_mapping_entry FLOW-ENTRY)*
-#                       flow_mapping_entry?
-#                       FLOW-MAPPING-END
-# flow_mapping_entry    ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-#
-# FIRST sets:
-#
-# stream: { STREAM-START }
-# explicit_document: { DIRECTIVE DOCUMENT-START }
-# implicit_document: FIRST(block_node)
-# block_node: { ALIAS TAG ANCHOR SCALAR BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START }
-# flow_node: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START }
-# block_content: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR }
-# flow_content: { FLOW-SEQUENCE-START FLOW-MAPPING-START SCALAR }
-# block_collection: { BLOCK-SEQUENCE-START BLOCK-MAPPING-START }
-# flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START }
-# block_sequence: { BLOCK-SEQUENCE-START }
-# block_mapping: { BLOCK-MAPPING-START }
-# block_node_or_indentless_sequence: { ALIAS ANCHOR TAG SCALAR BLOCK-SEQUENCE-START BLOCK-MAPPING-START FLOW-SEQUENCE-START FLOW-MAPPING-START BLOCK-ENTRY }
-# indentless_sequence: { ENTRY }
-# flow_collection: { FLOW-SEQUENCE-START FLOW-MAPPING-START }
-# flow_sequence: { FLOW-SEQUENCE-START }
-# flow_mapping: { FLOW-MAPPING-START }
-# flow_sequence_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START KEY }
-# flow_mapping_entry: { ALIAS ANCHOR TAG SCALAR FLOW-SEQUENCE-START FLOW-MAPPING-START KEY }
-
-__all__ = ['Parser', 'ParserError']
-
-from .error import MarkedYAMLError
-from .tokens import *
-from .events import *
-from .scanner import *
-
-class ParserError(MarkedYAMLError):
-    pass
-
-class Parser:
-    # Since writing a recursive-descendant parser is a straightforward task, we
-    # do not give many comments here.
-
-    DEFAULT_TAGS = {
-        '!':   '!',
-        '!!':  'tag:yaml.org,2002:',
-    }
-
-    def __init__(self):
-        self.current_event = None
-        self.yaml_version = None
-        self.tag_handles = {}
-        self.states = []
-        self.marks = []
-        self.state = self.parse_stream_start
-
-    def dispose(self):
-        # Reset the state attributes (to clear self-references)
-        self.states = []
-        self.state = None
-
-    def check_event(self, *choices):
-        # Check the type of the next event.
-        if self.current_event is None:
-            if self.state:
-                self.current_event = self.state()
-        if self.current_event is not None:
-            if not choices:
-                return True
-            for choice in choices:
-                if isinstance(self.current_event, choice):
-                    return True
-        return False
-
-    def peek_event(self):
-        # Get the next event.
-        if self.current_event is None:
-            if self.state:
-                self.current_event = self.state()
-        return self.current_event
-
-    def get_event(self):
-        # Get the next event and proceed further.
-        if self.current_event is None:
-            if self.state:
-                self.current_event = self.state()
-        value = self.current_event
-        self.current_event = None
-        return value
-
-    # stream    ::= STREAM-START implicit_document? explicit_document* STREAM-END
-    # implicit_document ::= block_node DOCUMENT-END*
-    # explicit_document ::= DIRECTIVE* DOCUMENT-START block_node? DOCUMENT-END*
-
-    def parse_stream_start(self):
-
-        # Parse the stream start.
-        token = self.get_token()
-        event = StreamStartEvent(token.start_mark, token.end_mark,
-                encoding=token.encoding)
-
-        # Prepare the next state.
-        self.state = self.parse_implicit_document_start
-
-        return event
-
-    def parse_implicit_document_start(self):
-
-        # Parse an implicit document.
-        if not self.check_token(DirectiveToken, DocumentStartToken,
-                StreamEndToken):
-            self.tag_handles = self.DEFAULT_TAGS
-            token = self.peek_token()
-            start_mark = end_mark = token.start_mark
-            event = DocumentStartEvent(start_mark, end_mark,
-                    explicit=False)
-
-            # Prepare the next state.
-            self.states.append(self.parse_document_end)
-            self.state = self.parse_block_node
-
-            return event
-
-        else:
-            return self.parse_document_start()
-
-    def parse_document_start(self):
-
-        # Parse any extra document end indicators.
-        while self.check_token(DocumentEndToken):
-            self.get_token()
-
-        # Parse an explicit document.
-        if not self.check_token(StreamEndToken):
-            token = self.peek_token()
-            start_mark = token.start_mark
-            version, tags = self.process_directives()
-            if not self.check_token(DocumentStartToken):
-                raise ParserError(None, None,
-                        "expected '<document start>', but found %r"
-                        % self.peek_token().id,
-                        self.peek_token().start_mark)
-            token = self.get_token()
-            end_mark = token.end_mark
-            event = DocumentStartEvent(start_mark, end_mark,
-                    explicit=True, version=version, tags=tags)
-            self.states.append(self.parse_document_end)
-            self.state = self.parse_document_content
-        else:
-            # Parse the end of the stream.
-            token = self.get_token()
-            event = StreamEndEvent(token.start_mark, token.end_mark)
-            assert not self.states
-            assert not self.marks
-            self.state = None
-        return event
-
-    def parse_document_end(self):
-
-        # Parse the document end.
-        token = self.peek_token()
-        start_mark = end_mark = token.start_mark
-        explicit = False
-        if self.check_token(DocumentEndToken):
-            token = self.get_token()
-            end_mark = token.end_mark
-            explicit = True
-        event = DocumentEndEvent(start_mark, end_mark,
-                explicit=explicit)
-
-        # Prepare the next state.
-        self.state = self.parse_document_start
-
-        return event
-
-    def parse_document_content(self):
-        if self.check_token(DirectiveToken,
-                DocumentStartToken, DocumentEndToken, StreamEndToken):
-            event = self.process_empty_scalar(self.peek_token().start_mark)
-            self.state = self.states.pop()
-            return event
-        else:
-            return self.parse_block_node()
-
-    def process_directives(self):
-        self.yaml_version = None
-        self.tag_handles = {}
-        while self.check_token(DirectiveToken):
-            token = self.get_token()
-            if token.name == 'YAML':
-                if self.yaml_version is not None:
-                    raise ParserError(None, None,
-                            "found duplicate YAML directive", token.start_mark)
-                major, minor = token.value
-                if major != 1:
-                    raise ParserError(None, None,
-                            "found incompatible YAML document (version 1.* is required)",
-                            token.start_mark)
-                self.yaml_version = token.value
-            elif token.name == 'TAG':
-                handle, prefix = token.value
-                if handle in self.tag_handles:
-                    raise ParserError(None, None,
-                            "duplicate tag handle %r" % handle,
-                            token.start_mark)
-                self.tag_handles[handle] = prefix
-        if self.tag_handles:
-            value = self.yaml_version, self.tag_handles.copy()
-        else:
-            value = self.yaml_version, None
-        for key in self.DEFAULT_TAGS:
-            if key not in self.tag_handles:
-                self.tag_handles[key] = self.DEFAULT_TAGS[key]
-        return value
-
-    # block_node_or_indentless_sequence ::= ALIAS
-    #               | properties (block_content | indentless_block_sequence)?
-    #               | block_content
-    #               | indentless_block_sequence
-    # block_node    ::= ALIAS
-    #                   | properties block_content?
-    #                   | block_content
-    # flow_node     ::= ALIAS
-    #                   | properties flow_content?
-    #                   | flow_content
-    # properties    ::= TAG ANCHOR? | ANCHOR TAG?
-    # block_content     ::= block_collection | flow_collection | SCALAR
-    # flow_content      ::= flow_collection | SCALAR
-    # block_collection  ::= block_sequence | block_mapping
-    # flow_collection   ::= flow_sequence | flow_mapping
-
-    def parse_block_node(self):
-        return self.parse_node(block=True)
-
-    def parse_flow_node(self):
-        return self.parse_node()
-
-    def parse_block_node_or_indentless_sequence(self):
-        return self.parse_node(block=True, indentless_sequence=True)
-
-    def parse_node(self, block=False, indentless_sequence=False):
-        if self.check_token(AliasToken):
-            token = self.get_token()
-            event = AliasEvent(token.value, token.start_mark, token.end_mark)
-            self.state = self.states.pop()
-        else:
-            anchor = None
-            tag = None
-            start_mark = end_mark = tag_mark = None
-            if self.check_token(AnchorToken):
-                token = self.get_token()
-                start_mark = token.start_mark
-                end_mark = token.end_mark
-                anchor = token.value
-                if self.check_token(TagToken):
-                    token = self.get_token()
-                    tag_mark = token.start_mark
-                    end_mark = token.end_mark
-                    tag = token.value
-            elif self.check_token(TagToken):
-                token = self.get_token()
-                start_mark = tag_mark = token.start_mark
-                end_mark = token.end_mark
-                tag = token.value
-                if self.check_token(AnchorToken):
-                    token = self.get_token()
-                    end_mark = token.end_mark
-                    anchor = token.value
-            if tag is not None:
-                handle, suffix = tag
-                if handle is not None:
-                    if handle not in self.tag_handles:
-                        raise ParserError("while parsing a node", start_mark,
-                                "found undefined tag handle %r" % handle,
-                                tag_mark)
-                    tag = self.tag_handles[handle]+suffix
-                else:
-                    tag = suffix
-            #if tag == '!':
-            #    raise ParserError("while parsing a node", start_mark,
-            #            "found non-specific tag '!'", tag_mark,
-            #            "Please check 'http://pyyaml.org/wiki/YAMLNonSpecificTag' and share your opinion.")
-            if start_mark is None:
-                start_mark = end_mark = self.peek_token().start_mark
-            event = None
-            implicit = (tag is None or tag == '!')
-            if indentless_sequence and self.check_token(BlockEntryToken):
-                end_mark = self.peek_token().end_mark
-                event = SequenceStartEvent(anchor, tag, implicit,
-                        start_mark, end_mark)
-                self.state = self.parse_indentless_sequence_entry
-            else:
-                if self.check_token(ScalarToken):
-                    token = self.get_token()
-                    end_mark = token.end_mark
-                    if (token.plain and tag is None) or tag == '!':
-                        implicit = (True, False)
-                    elif tag is None:
-                        implicit = (False, True)
-                    else:
-                        implicit = (False, False)
-                    event = ScalarEvent(anchor, tag, implicit, token.value,
-                            start_mark, end_mark, style=token.style)
-                    self.state = self.states.pop()
-                elif self.check_token(FlowSequenceStartToken):
-                    end_mark = self.peek_token().end_mark
-                    event = SequenceStartEvent(anchor, tag, implicit,
-                            start_mark, end_mark, flow_style=True)
-                    self.state = self.parse_flow_sequence_first_entry
-                elif self.check_token(FlowMappingStartToken):
-                    end_mark = self.peek_token().end_mark
-                    event = MappingStartEvent(anchor, tag, implicit,
-                            start_mark, end_mark, flow_style=True)
-                    self.state = self.parse_flow_mapping_first_key
-                elif block and self.check_token(BlockSequenceStartToken):
-                    end_mark = self.peek_token().start_mark
-                    event = SequenceStartEvent(anchor, tag, implicit,
-                            start_mark, end_mark, flow_style=False)
-                    self.state = self.parse_block_sequence_first_entry
-                elif block and self.check_token(BlockMappingStartToken):
-                    end_mark = self.peek_token().start_mark
-                    event = MappingStartEvent(anchor, tag, implicit,
-                            start_mark, end_mark, flow_style=False)
-                    self.state = self.parse_block_mapping_first_key
-                elif anchor is not None or tag is not None:
-                    # Empty scalars are allowed even if a tag or an anchor is
-                    # specified.
-                    event = ScalarEvent(anchor, tag, (implicit, False), '',
-                            start_mark, end_mark)
-                    self.state = self.states.pop()
-                else:
-                    if block:
-                        node = 'block'
-                    else:
-                        node = 'flow'
-                    token = self.peek_token()
-                    raise ParserError("while parsing a %s node" % node, start_mark,
-                            "expected the node content, but found %r" % token.id,
-                            token.start_mark)
-        return event
-
-    # block_sequence ::= BLOCK-SEQUENCE-START (BLOCK-ENTRY block_node?)* BLOCK-END
-
-    def parse_block_sequence_first_entry(self):
-        token = self.get_token()
-        self.marks.append(token.start_mark)
-        return self.parse_block_sequence_entry()
-
-    def parse_block_sequence_entry(self):
-        if self.check_token(BlockEntryToken):
-            token = self.get_token()
-            if not self.check_token(BlockEntryToken, BlockEndToken):
-                self.states.append(self.parse_block_sequence_entry)
-                return self.parse_block_node()
-            else:
-                self.state = self.parse_block_sequence_entry
-                return self.process_empty_scalar(token.end_mark)
-        if not self.check_token(BlockEndToken):
-            token = self.peek_token()
-            raise ParserError("while parsing a block collection", self.marks[-1],
-                    "expected <block end>, but found %r" % token.id, token.start_mark)
-        token = self.get_token()
-        event = SequenceEndEvent(token.start_mark, token.end_mark)
-        self.state = self.states.pop()
-        self.marks.pop()
-        return event
-
-    # indentless_sequence ::= (BLOCK-ENTRY block_node?)+
-
-    def parse_indentless_sequence_entry(self):
-        if self.check_token(BlockEntryToken):
-            token = self.get_token()
-            if not self.check_token(BlockEntryToken,
-                    KeyToken, ValueToken, BlockEndToken):
-                self.states.append(self.parse_indentless_sequence_entry)
-                return self.parse_block_node()
-            else:
-                self.state = self.parse_indentless_sequence_entry
-                return self.process_empty_scalar(token.end_mark)
-        token = self.peek_token()
-        event = SequenceEndEvent(token.start_mark, token.start_mark)
-        self.state = self.states.pop()
-        return event
-
-    # block_mapping     ::= BLOCK-MAPPING_START
-    #                       ((KEY block_node_or_indentless_sequence?)?
-    #                       (VALUE block_node_or_indentless_sequence?)?)*
-    #                       BLOCK-END
-
-    def parse_block_mapping_first_key(self):
-        token = self.get_token()
-        self.marks.append(token.start_mark)
-        return self.parse_block_mapping_key()
-
-    def parse_block_mapping_key(self):
-        if self.check_token(KeyToken):
-            token = self.get_token()
-            if not self.check_token(KeyToken, ValueToken, BlockEndToken):
-                self.states.append(self.parse_block_mapping_value)
-                return self.parse_block_node_or_indentless_sequence()
-            else:
-                self.state = self.parse_block_mapping_value
-                return self.process_empty_scalar(token.end_mark)
-        if not self.check_token(BlockEndToken):
-            token = self.peek_token()
-            raise ParserError("while parsing a block mapping", self.marks[-1],
-                    "expected <block end>, but found %r" % token.id, token.start_mark)
-        token = self.get_token()
-        event = MappingEndEvent(token.start_mark, token.end_mark)
-        self.state = self.states.pop()
-        self.marks.pop()
-        return event
-
-    def parse_block_mapping_value(self):
-        if self.check_token(ValueToken):
-            token = self.get_token()
-            if not self.check_token(KeyToken, ValueToken, BlockEndToken):
-                self.states.append(self.parse_block_mapping_key)
-                return self.parse_block_node_or_indentless_sequence()
-            else:
-                self.state = self.parse_block_mapping_key
-                return self.process_empty_scalar(token.end_mark)
-        else:
-            self.state = self.parse_block_mapping_key
-            token = self.peek_token()
-            return self.process_empty_scalar(token.start_mark)
-
-    # flow_sequence     ::= FLOW-SEQUENCE-START
-    #                       (flow_sequence_entry FLOW-ENTRY)*
-    #                       flow_sequence_entry?
-    #                       FLOW-SEQUENCE-END
-    # flow_sequence_entry   ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-    #
-    # Note that while production rules for both flow_sequence_entry and
-    # flow_mapping_entry are equal, their interpretations are different.
-    # For `flow_sequence_entry`, the part `KEY flow_node? (VALUE flow_node?)?`
-    # generate an inline mapping (set syntax).
-
-    def parse_flow_sequence_first_entry(self):
-        token = self.get_token()
-        self.marks.append(token.start_mark)
-        return self.parse_flow_sequence_entry(first=True)
-
-    def parse_flow_sequence_entry(self, first=False):
-        if not self.check_token(FlowSequenceEndToken):
-            if not first:
-                if self.check_token(FlowEntryToken):
-                    self.get_token()
-                else:
-                    token = self.peek_token()
-                    raise ParserError("while parsing a flow sequence", self.marks[-1],
-                            "expected ',' or ']', but got %r" % token.id, token.start_mark)
-            
-            if self.check_token(KeyToken):
-                token = self.peek_token()
-                event = MappingStartEvent(None, None, True,
-                        token.start_mark, token.end_mark,
-                        flow_style=True)
-                self.state = self.parse_flow_sequence_entry_mapping_key
-                return event
-            elif not self.check_token(FlowSequenceEndToken):
-                self.states.append(self.parse_flow_sequence_entry)
-                return self.parse_flow_node()
-        token = self.get_token()
-        event = SequenceEndEvent(token.start_mark, token.end_mark)
-        self.state = self.states.pop()
-        self.marks.pop()
-        return event
-
-    def parse_flow_sequence_entry_mapping_key(self):
-        token = self.get_token()
-        if not self.check_token(ValueToken,
-                FlowEntryToken, FlowSequenceEndToken):
-            self.states.append(self.parse_flow_sequence_entry_mapping_value)
-            return self.parse_flow_node()
-        else:
-            self.state = self.parse_flow_sequence_entry_mapping_value
-            return self.process_empty_scalar(token.end_mark)
-
-    def parse_flow_sequence_entry_mapping_value(self):
-        if self.check_token(ValueToken):
-            token = self.get_token()
-            if not self.check_token(FlowEntryToken, FlowSequenceEndToken):
-                self.states.append(self.parse_flow_sequence_entry_mapping_end)
-                return self.parse_flow_node()
-            else:
-                self.state = self.parse_flow_sequence_entry_mapping_end
-                return self.process_empty_scalar(token.end_mark)
-        else:
-            self.state = self.parse_flow_sequence_entry_mapping_end
-            token = self.peek_token()
-            return self.process_empty_scalar(token.start_mark)
-
-    def parse_flow_sequence_entry_mapping_end(self):
-        self.state = self.parse_flow_sequence_entry
-        token = self.peek_token()
-        return MappingEndEvent(token.start_mark, token.start_mark)
-
-    # flow_mapping  ::= FLOW-MAPPING-START
-    #                   (flow_mapping_entry FLOW-ENTRY)*
-    #                   flow_mapping_entry?
-    #                   FLOW-MAPPING-END
-    # flow_mapping_entry    ::= flow_node | KEY flow_node? (VALUE flow_node?)?
-
-    def parse_flow_mapping_first_key(self):
-        token = self.get_token()
-        self.marks.append(token.start_mark)
-        return self.parse_flow_mapping_key(first=True)
-
-    def parse_flow_mapping_key(self, first=False):
-        if not self.check_token(FlowMappingEndToken):
-            if not first:
-                if self.check_token(FlowEntryToken):
-                    self.get_token()
-                else:
-                    token = self.peek_token()
-                    raise ParserError("while parsing a flow mapping", self.marks[-1],
-                            "expected ',' or '}', but got %r" % token.id, token.start_mark)
-            if self.check_token(KeyToken):
-                token = self.get_token()
-                if not self.check_token(ValueToken,
-                        FlowEntryToken, FlowMappingEndToken):
-                    self.states.append(self.parse_flow_mapping_value)
-                    return self.parse_flow_node()
-                else:
-                    self.state = self.parse_flow_mapping_value
-                    return self.process_empty_scalar(token.end_mark)
-            elif not self.check_token(FlowMappingEndToken):
-                self.states.append(self.parse_flow_mapping_empty_value)
-                return self.parse_flow_node()
-        token = self.get_token()
-        event = MappingEndEvent(token.start_mark, token.end_mark)
-        self.state = self.states.pop()
-        self.marks.pop()
-        return event
-
-    def parse_flow_mapping_value(self):
-        if self.check_token(ValueToken):
-            token = self.get_token()
-            if not self.check_token(FlowEntryToken, FlowMappingEndToken):
-                self.states.append(self.parse_flow_mapping_key)
-                return self.parse_flow_node()
-            else:
-                self.state = self.parse_flow_mapping_key
-                return self.process_empty_scalar(token.end_mark)
-        else:
-            self.state = self.parse_flow_mapping_key
-            token = self.peek_token()
-            return self.process_empty_scalar(token.start_mark)
-
-    def parse_flow_mapping_empty_value(self):
-        self.state = self.parse_flow_mapping_key
-        return self.process_empty_scalar(self.peek_token().start_mark)
-
-    def process_empty_scalar(self, mark):
-        return ScalarEvent(None, None, (True, False), '', mark, mark)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/reader.py b/collectors/python.d.plugin/python_modules/pyyaml3/reader.py
deleted file mode 100644
index 0a515fd64..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/reader.py
+++ /dev/null
@@ -1,193 +0,0 @@
-# SPDX-License-Identifier: MIT
-# This module contains abstractions for the input stream. You don't have to
-# looks further, there are no pretty code.
-#
-# We define two classes here.
-#
-#   Mark(source, line, column)
-# It's just a record and its only use is producing nice error messages.
-# Parser does not use it for any other purposes.
-#
-#   Reader(source, data)
-# Reader determines the encoding of `data` and converts it to unicode.
-# Reader provides the following methods and attributes:
-#   reader.peek(length=1) - return the next `length` characters
-#   reader.forward(length=1) - move the current position to `length` characters.
-#   reader.index - the number of the current character.
-#   reader.line, stream.column - the line and the column of the current character.
-
-__all__ = ['Reader', 'ReaderError']
-
-from .error import YAMLError, Mark
-
-import codecs, re
-
-class ReaderError(YAMLError):
-
-    def __init__(self, name, position, character, encoding, reason):
-        self.name = name
-        self.character = character
-        self.position = position
-        self.encoding = encoding
-        self.reason = reason
-
-    def __str__(self):
-        if isinstance(self.character, bytes):
-            return "'%s' codec can't decode byte #x%02x: %s\n"  \
-                    "  in \"%s\", position %d"    \
-                    % (self.encoding, ord(self.character), self.reason,
-                            self.name, self.position)
-        else:
-            return "unacceptable character #x%04x: %s\n"    \
-                    "  in \"%s\", position %d"    \
-                    % (self.character, self.reason,
-                            self.name, self.position)
-
-class Reader(object):
-    # Reader:
-    # - determines the data encoding and converts it to a unicode string,
-    # - checks if characters are in allowed range,
-    # - adds '\0' to the end.
-
-    # Reader accepts
-    #  - a `bytes` object,
-    #  - a `str` object,
-    #  - a file-like object with its `read` method returning `str`,
-    #  - a file-like object with its `read` method returning `unicode`.
-
-    # Yeah, it's ugly and slow.
-
-    def __init__(self, stream):
-        self.name = None
-        self.stream = None
-        self.stream_pointer = 0
-        self.eof = True
-        self.buffer = ''
-        self.pointer = 0
-        self.raw_buffer = None
-        self.raw_decode = None
-        self.encoding = None
-        self.index = 0
-        self.line = 0
-        self.column = 0
-        if isinstance(stream, str):
-            self.name = "<unicode string>"
-            self.check_printable(stream)
-            self.buffer = stream+'\0'
-        elif isinstance(stream, bytes):
-            self.name = "<byte string>"
-            self.raw_buffer = stream
-            self.determine_encoding()
-        else:
-            self.stream = stream
-            self.name = getattr(stream, 'name', "<file>")
-            self.eof = False
-            self.raw_buffer = None
-            self.determine_encoding()
-
-    def peek(self, index=0):
-        try:
-            return self.buffer[self.pointer+index]
-        except IndexError:
-            self.update(index+1)
-            return self.buffer[self.pointer+index]
-
-    def prefix(self, length=1):
-        if self.pointer+length >= len(self.buffer):
-            self.update(length)
-        return self.buffer[self.pointer:self.pointer+length]
-
-    def forward(self, length=1):
-        if self.pointer+length+1 >= len(self.buffer):
-            self.update(length+1)
-        while length:
-            ch = self.buffer[self.pointer]
-            self.pointer += 1
-            self.index += 1
-            if ch in '\n\x85\u2028\u2029'  \
-                    or (ch == '\r' and self.buffer[self.pointer] != '\n'):
-                self.line += 1
-                self.column = 0
-            elif ch != '\uFEFF':
-                self.column += 1
-            length -= 1
-
-    def get_mark(self):
-        if self.stream is None:
-            return Mark(self.name, self.index, self.line, self.column,
-                    self.buffer, self.pointer)
-        else:
-            return Mark(self.name, self.index, self.line, self.column,
-                    None, None)
-
-    def determine_encoding(self):
-        while not self.eof and (self.raw_buffer is None or len(self.raw_buffer) < 2):
-            self.update_raw()
-        if isinstance(self.raw_buffer, bytes):
-            if self.raw_buffer.startswith(codecs.BOM_UTF16_LE):
-                self.raw_decode = codecs.utf_16_le_decode
-                self.encoding = 'utf-16-le'
-            elif self.raw_buffer.startswith(codecs.BOM_UTF16_BE):
-                self.raw_decode = codecs.utf_16_be_decode
-                self.encoding = 'utf-16-be'
-            else:
-                self.raw_decode = codecs.utf_8_decode
-                self.encoding = 'utf-8'
-        self.update(1)
-
-    NON_PRINTABLE = re.compile('[^\x09\x0A\x0D\x20-\x7E\x85\xA0-\uD7FF\uE000-\uFFFD]')
-    def check_printable(self, data):
-        match = self.NON_PRINTABLE.search(data)
-        if match:
-            character = match.group()
-            position = self.index+(len(self.buffer)-self.pointer)+match.start()
-            raise ReaderError(self.name, position, ord(character),
-                    'unicode', "special characters are not allowed")
-
-    def update(self, length):
-        if self.raw_buffer is None:
-            return
-        self.buffer = self.buffer[self.pointer:]
-        self.pointer = 0
-        while len(self.buffer) < length:
-            if not self.eof:
-                self.update_raw()
-            if self.raw_decode is not None:
-                try:
-                    data, converted = self.raw_decode(self.raw_buffer,
-                            'strict', self.eof)
-                except UnicodeDecodeError as exc:
-                    character = self.raw_buffer[exc.start]
-                    if self.stream is not None:
-                        position = self.stream_pointer-len(self.raw_buffer)+exc.start
-                    else:
-                        position = exc.start
-                    raise ReaderError(self.name, position, character,
-                            exc.encoding, exc.reason)
-            else:
-                data = self.raw_buffer
-                converted = len(data)
-            self.check_printable(data)
-            self.buffer += data
-            self.raw_buffer = self.raw_buffer[converted:]
-            if self.eof:
-                self.buffer += '\0'
-                self.raw_buffer = None
-                break
-
-    def update_raw(self, size=4096):
-        data = self.stream.read(size)
-        if self.raw_buffer is None:
-            self.raw_buffer = data
-        else:
-            self.raw_buffer += data
-        self.stream_pointer += len(data)
-        if not data:
-            self.eof = True
-
-#try:
-#    import psyco
-#    psyco.bind(Reader)
-#except ImportError:
-#    pass
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/representer.py b/collectors/python.d.plugin/python_modules/pyyaml3/representer.py
deleted file mode 100644
index 756a18dcc..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/representer.py
+++ /dev/null
@@ -1,375 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['BaseRepresenter', 'SafeRepresenter', 'Representer',
-    'RepresenterError']
-
-from .error import *
-from .nodes import *
-
-import datetime, sys, copyreg, types, base64
-
-class RepresenterError(YAMLError):
-    pass
-
-class BaseRepresenter:
-
-    yaml_representers = {}
-    yaml_multi_representers = {}
-
-    def __init__(self, default_style=None, default_flow_style=None):
-        self.default_style = default_style
-        self.default_flow_style = default_flow_style
-        self.represented_objects = {}
-        self.object_keeper = []
-        self.alias_key = None
-
-    def represent(self, data):
-        node = self.represent_data(data)
-        self.serialize(node)
-        self.represented_objects = {}
-        self.object_keeper = []
-        self.alias_key = None
-
-    def represent_data(self, data):
-        if self.ignore_aliases(data):
-            self.alias_key = None
-        else:
-            self.alias_key = id(data)
-        if self.alias_key is not None:
-            if self.alias_key in self.represented_objects:
-                node = self.represented_objects[self.alias_key]
-                #if node is None:
-                #    raise RepresenterError("recursive objects are not allowed: %r" % data)
-                return node
-            #self.represented_objects[alias_key] = None
-            self.object_keeper.append(data)
-        data_types = type(data).__mro__
-        if data_types[0] in self.yaml_representers:
-            node = self.yaml_representers[data_types[0]](self, data)
-        else:
-            for data_type in data_types:
-                if data_type in self.yaml_multi_representers:
-                    node = self.yaml_multi_representers[data_type](self, data)
-                    break
-            else:
-                if None in self.yaml_multi_representers:
-                    node = self.yaml_multi_representers[None](self, data)
-                elif None in self.yaml_representers:
-                    node = self.yaml_representers[None](self, data)
-                else:
-                    node = ScalarNode(None, str(data))
-        #if alias_key is not None:
-        #    self.represented_objects[alias_key] = node
-        return node
-
-    @classmethod
-    def add_representer(cls, data_type, representer):
-        if not 'yaml_representers' in cls.__dict__:
-            cls.yaml_representers = cls.yaml_representers.copy()
-        cls.yaml_representers[data_type] = representer
-
-    @classmethod
-    def add_multi_representer(cls, data_type, representer):
-        if not 'yaml_multi_representers' in cls.__dict__:
-            cls.yaml_multi_representers = cls.yaml_multi_representers.copy()
-        cls.yaml_multi_representers[data_type] = representer
-
-    def represent_scalar(self, tag, value, style=None):
-        if style is None:
-            style = self.default_style
-        node = ScalarNode(tag, value, style=style)
-        if self.alias_key is not None:
-            self.represented_objects[self.alias_key] = node
-        return node
-
-    def represent_sequence(self, tag, sequence, flow_style=None):
-        value = []
-        node = SequenceNode(tag, value, flow_style=flow_style)
-        if self.alias_key is not None:
-            self.represented_objects[self.alias_key] = node
-        best_style = True
-        for item in sequence:
-            node_item = self.represent_data(item)
-            if not (isinstance(node_item, ScalarNode) and not node_item.style):
-                best_style = False
-            value.append(node_item)
-        if flow_style is None:
-            if self.default_flow_style is not None:
-                node.flow_style = self.default_flow_style
-            else:
-                node.flow_style = best_style
-        return node
-
-    def represent_mapping(self, tag, mapping, flow_style=None):
-        value = []
-        node = MappingNode(tag, value, flow_style=flow_style)
-        if self.alias_key is not None:
-            self.represented_objects[self.alias_key] = node
-        best_style = True
-        if hasattr(mapping, 'items'):
-            mapping = list(mapping.items())
-            try:
-                mapping = sorted(mapping)
-            except TypeError:
-                pass
-        for item_key, item_value in mapping:
-            node_key = self.represent_data(item_key)
-            node_value = self.represent_data(item_value)
-            if not (isinstance(node_key, ScalarNode) and not node_key.style):
-                best_style = False
-            if not (isinstance(node_value, ScalarNode) and not node_value.style):
-                best_style = False
-            value.append((node_key, node_value))
-        if flow_style is None:
-            if self.default_flow_style is not None:
-                node.flow_style = self.default_flow_style
-            else:
-                node.flow_style = best_style
-        return node
-
-    def ignore_aliases(self, data):
-        return False
-
-class SafeRepresenter(BaseRepresenter):
-
-    def ignore_aliases(self, data):
-        if data in [None, ()]:
-            return True
-        if isinstance(data, (str, bytes, bool, int, float)):
-            return True
-
-    def represent_none(self, data):
-        return self.represent_scalar('tag:yaml.org,2002:null', 'null')
-
-    def represent_str(self, data):
-        return self.represent_scalar('tag:yaml.org,2002:str', data)
-
-    def represent_binary(self, data):
-        if hasattr(base64, 'encodebytes'):
-            data = base64.encodebytes(data).decode('ascii')
-        else:
-            data = base64.encodestring(data).decode('ascii')
-        return self.represent_scalar('tag:yaml.org,2002:binary', data, style='|')
-
-    def represent_bool(self, data):
-        if data:
-            value = 'true'
-        else:
-            value = 'false'
-        return self.represent_scalar('tag:yaml.org,2002:bool', value)
-
-    def represent_int(self, data):
-        return self.represent_scalar('tag:yaml.org,2002:int', str(data))
-
-    inf_value = 1e300
-    while repr(inf_value) != repr(inf_value*inf_value):
-        inf_value *= inf_value
-
-    def represent_float(self, data):
-        if data != data or (data == 0.0 and data == 1.0):
-            value = '.nan'
-        elif data == self.inf_value:
-            value = '.inf'
-        elif data == -self.inf_value:
-            value = '-.inf'
-        else:
-            value = repr(data).lower()
-            # Note that in some cases `repr(data)` represents a float number
-            # without the decimal parts.  For instance:
-            #   >>> repr(1e17)
-            #   '1e17'
-            # Unfortunately, this is not a valid float representation according
-            # to the definition of the `!!float` tag.  We fix this by adding
-            # '.0' before the 'e' symbol.
-            if '.' not in value and 'e' in value:
-                value = value.replace('e', '.0e', 1)
-        return self.represent_scalar('tag:yaml.org,2002:float', value)
-
-    def represent_list(self, data):
-        #pairs = (len(data) > 0 and isinstance(data, list))
-        #if pairs:
-        #    for item in data:
-        #        if not isinstance(item, tuple) or len(item) != 2:
-        #            pairs = False
-        #            break
-        #if not pairs:
-            return self.represent_sequence('tag:yaml.org,2002:seq', data)
-        #value = []
-        #for item_key, item_value in data:
-        #    value.append(self.represent_mapping(u'tag:yaml.org,2002:map',
-        #        [(item_key, item_value)]))
-        #return SequenceNode(u'tag:yaml.org,2002:pairs', value)
-
-    def represent_dict(self, data):
-        return self.represent_mapping('tag:yaml.org,2002:map', data)
-
-    def represent_set(self, data):
-        value = {}
-        for key in data:
-            value[key] = None
-        return self.represent_mapping('tag:yaml.org,2002:set', value)
-
-    def represent_date(self, data):
-        value = data.isoformat()
-        return self.represent_scalar('tag:yaml.org,2002:timestamp', value)
-
-    def represent_datetime(self, data):
-        value = data.isoformat(' ')
-        return self.represent_scalar('tag:yaml.org,2002:timestamp', value)
-
-    def represent_yaml_object(self, tag, data, cls, flow_style=None):
-        if hasattr(data, '__getstate__'):
-            state = data.__getstate__()
-        else:
-            state = data.__dict__.copy()
-        return self.represent_mapping(tag, state, flow_style=flow_style)
-
-    def represent_undefined(self, data):
-        raise RepresenterError("cannot represent an object: %s" % data)
-
-SafeRepresenter.add_representer(type(None),
-        SafeRepresenter.represent_none)
-
-SafeRepresenter.add_representer(str,
-        SafeRepresenter.represent_str)
-
-SafeRepresenter.add_representer(bytes,
-        SafeRepresenter.represent_binary)
-
-SafeRepresenter.add_representer(bool,
-        SafeRepresenter.represent_bool)
-
-SafeRepresenter.add_representer(int,
-        SafeRepresenter.represent_int)
-
-SafeRepresenter.add_representer(float,
-        SafeRepresenter.represent_float)
-
-SafeRepresenter.add_representer(list,
-        SafeRepresenter.represent_list)
-
-SafeRepresenter.add_representer(tuple,
-        SafeRepresenter.represent_list)
-
-SafeRepresenter.add_representer(dict,
-        SafeRepresenter.represent_dict)
-
-SafeRepresenter.add_representer(set,
-        SafeRepresenter.represent_set)
-
-SafeRepresenter.add_representer(datetime.date,
-        SafeRepresenter.represent_date)
-
-SafeRepresenter.add_representer(datetime.datetime,
-        SafeRepresenter.represent_datetime)
-
-SafeRepresenter.add_representer(None,
-        SafeRepresenter.represent_undefined)
-
-class Representer(SafeRepresenter):
-
-    def represent_complex(self, data):
-        if data.imag == 0.0:
-            data = '%r' % data.real
-        elif data.real == 0.0:
-            data = '%rj' % data.imag
-        elif data.imag > 0:
-            data = '%r+%rj' % (data.real, data.imag)
-        else:
-            data = '%r%rj' % (data.real, data.imag)
-        return self.represent_scalar('tag:yaml.org,2002:python/complex', data)
-
-    def represent_tuple(self, data):
-        return self.represent_sequence('tag:yaml.org,2002:python/tuple', data)
-
-    def represent_name(self, data):
-        name = '%s.%s' % (data.__module__, data.__name__)
-        return self.represent_scalar('tag:yaml.org,2002:python/name:'+name, '')
-
-    def represent_module(self, data):
-        return self.represent_scalar(
-                'tag:yaml.org,2002:python/module:'+data.__name__, '')
-
-    def represent_object(self, data):
-        # We use __reduce__ API to save the data. data.__reduce__ returns
-        # a tuple of length 2-5:
-        #   (function, args, state, listitems, dictitems)
-
-        # For reconstructing, we calls function(*args), then set its state,
-        # listitems, and dictitems if they are not None.
-
-        # A special case is when function.__name__ == '__newobj__'. In this
-        # case we create the object with args[0].__new__(*args).
-
-        # Another special case is when __reduce__ returns a string - we don't
-        # support it.
-
-        # We produce a !!python/object, !!python/object/new or
-        # !!python/object/apply node.
-
-        cls = type(data)
-        if cls in copyreg.dispatch_table:
-            reduce = copyreg.dispatch_table[cls](data)
-        elif hasattr(data, '__reduce_ex__'):
-            reduce = data.__reduce_ex__(2)
-        elif hasattr(data, '__reduce__'):
-            reduce = data.__reduce__()
-        else:
-            raise RepresenterError("cannot represent object: %r" % data)
-        reduce = (list(reduce)+[None]*5)[:5]
-        function, args, state, listitems, dictitems = reduce
-        args = list(args)
-        if state is None:
-            state = {}
-        if listitems is not None:
-            listitems = list(listitems)
-        if dictitems is not None:
-            dictitems = dict(dictitems)
-        if function.__name__ == '__newobj__':
-            function = args[0]
-            args = args[1:]
-            tag = 'tag:yaml.org,2002:python/object/new:'
-            newobj = True
-        else:
-            tag = 'tag:yaml.org,2002:python/object/apply:'
-            newobj = False
-        function_name = '%s.%s' % (function.__module__, function.__name__)
-        if not args and not listitems and not dictitems \
-                and isinstance(state, dict) and newobj:
-            return self.represent_mapping(
-                    'tag:yaml.org,2002:python/object:'+function_name, state)
-        if not listitems and not dictitems  \
-                and isinstance(state, dict) and not state:
-            return self.represent_sequence(tag+function_name, args)
-        value = {}
-        if args:
-            value['args'] = args
-        if state or not isinstance(state, dict):
-            value['state'] = state
-        if listitems:
-            value['listitems'] = listitems
-        if dictitems:
-            value['dictitems'] = dictitems
-        return self.represent_mapping(tag+function_name, value)
-
-Representer.add_representer(complex,
-        Representer.represent_complex)
-
-Representer.add_representer(tuple,
-        Representer.represent_tuple)
-
-Representer.add_representer(type,
-        Representer.represent_name)
-
-Representer.add_representer(types.FunctionType,
-        Representer.represent_name)
-
-Representer.add_representer(types.BuiltinFunctionType,
-        Representer.represent_name)
-
-Representer.add_representer(types.ModuleType,
-        Representer.represent_module)
-
-Representer.add_multi_representer(object,
-        Representer.represent_object)
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/resolver.py b/collectors/python.d.plugin/python_modules/pyyaml3/resolver.py
deleted file mode 100644
index 50945e04d..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/resolver.py
+++ /dev/null
@@ -1,225 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['BaseResolver', 'Resolver']
-
-from .error import *
-from .nodes import *
-
-import re
-
-class ResolverError(YAMLError):
-    pass
-
-class BaseResolver:
-
-    DEFAULT_SCALAR_TAG = 'tag:yaml.org,2002:str'
-    DEFAULT_SEQUENCE_TAG = 'tag:yaml.org,2002:seq'
-    DEFAULT_MAPPING_TAG = 'tag:yaml.org,2002:map'
-
-    yaml_implicit_resolvers = {}
-    yaml_path_resolvers = {}
-
-    def __init__(self):
-        self.resolver_exact_paths = []
-        self.resolver_prefix_paths = []
-
-    @classmethod
-    def add_implicit_resolver(cls, tag, regexp, first):
-        if not 'yaml_implicit_resolvers' in cls.__dict__:
-            cls.yaml_implicit_resolvers = cls.yaml_implicit_resolvers.copy()
-        if first is None:
-            first = [None]
-        for ch in first:
-            cls.yaml_implicit_resolvers.setdefault(ch, []).append((tag, regexp))
-
-    @classmethod
-    def add_path_resolver(cls, tag, path, kind=None):
-        # Note: `add_path_resolver` is experimental.  The API could be changed.
-        # `new_path` is a pattern that is matched against the path from the
-        # root to the node that is being considered.  `node_path` elements are
-        # tuples `(node_check, index_check)`.  `node_check` is a node class:
-        # `ScalarNode`, `SequenceNode`, `MappingNode` or `None`.  `None`
-        # matches any kind of a node.  `index_check` could be `None`, a boolean
-        # value, a string value, or a number.  `None` and `False` match against
-        # any _value_ of sequence and mapping nodes.  `True` matches against
-        # any _key_ of a mapping node.  A string `index_check` matches against
-        # a mapping value that corresponds to a scalar key which content is
-        # equal to the `index_check` value.  An integer `index_check` matches
-        # against a sequence value with the index equal to `index_check`.
-        if not 'yaml_path_resolvers' in cls.__dict__:
-            cls.yaml_path_resolvers = cls.yaml_path_resolvers.copy()
-        new_path = []
-        for element in path:
-            if isinstance(element, (list, tuple)):
-                if len(element) == 2:
-                    node_check, index_check = element
-                elif len(element) == 1:
-                    node_check = element[0]
-                    index_check = True
-                else:
-                    raise ResolverError("Invalid path element: %s" % element)
-            else:
-                node_check = None
-                index_check = element
-            if node_check is str:
-                node_check = ScalarNode
-            elif node_check is list:
-                node_check = SequenceNode
-            elif node_check is dict:
-                node_check = MappingNode
-            elif node_check not in [ScalarNode, SequenceNode, MappingNode]  \
-                    and not isinstance(node_check, str) \
-                    and node_check is not None:
-                raise ResolverError("Invalid node checker: %s" % node_check)
-            if not isinstance(index_check, (str, int))  \
-                    and index_check is not None:
-                raise ResolverError("Invalid index checker: %s" % index_check)
-            new_path.append((node_check, index_check))
-        if kind is str:
-            kind = ScalarNode
-        elif kind is list:
-            kind = SequenceNode
-        elif kind is dict:
-            kind = MappingNode
-        elif kind not in [ScalarNode, SequenceNode, MappingNode]    \
-                and kind is not None:
-            raise ResolverError("Invalid node kind: %s" % kind)
-        cls.yaml_path_resolvers[tuple(new_path), kind] = tag
-
-    def descend_resolver(self, current_node, current_index):
-        if not self.yaml_path_resolvers:
-            return
-        exact_paths = {}
-        prefix_paths = []
-        if current_node:
-            depth = len(self.resolver_prefix_paths)
-            for path, kind in self.resolver_prefix_paths[-1]:
-                if self.check_resolver_prefix(depth, path, kind,
-                        current_node, current_index):
-                    if len(path) > depth:
-                        prefix_paths.append((path, kind))
-                    else:
-                        exact_paths[kind] = self.yaml_path_resolvers[path, kind]
-        else:
-            for path, kind in self.yaml_path_resolvers:
-                if not path:
-                    exact_paths[kind] = self.yaml_path_resolvers[path, kind]
-                else:
-                    prefix_paths.append((path, kind))
-        self.resolver_exact_paths.append(exact_paths)
-        self.resolver_prefix_paths.append(prefix_paths)
-
-    def ascend_resolver(self):
-        if not self.yaml_path_resolvers:
-            return
-        self.resolver_exact_paths.pop()
-        self.resolver_prefix_paths.pop()
-
-    def check_resolver_prefix(self, depth, path, kind,
-            current_node, current_index):
-        node_check, index_check = path[depth-1]
-        if isinstance(node_check, str):
-            if current_node.tag != node_check:
-                return
-        elif node_check is not None:
-            if not isinstance(current_node, node_check):
-                return
-        if index_check is True and current_index is not None:
-            return
-        if (index_check is False or index_check is None)    \
-                and current_index is None:
-            return
-        if isinstance(index_check, str):
-            if not (isinstance(current_index, ScalarNode)
-                    and index_check == current_index.value):
-                return
-        elif isinstance(index_check, int) and not isinstance(index_check, bool):
-            if index_check != current_index:
-                return
-        return True
-
-    def resolve(self, kind, value, implicit):
-        if kind is ScalarNode and implicit[0]:
-            if value == '':
-                resolvers = self.yaml_implicit_resolvers.get('', [])
-            else:
-                resolvers = self.yaml_implicit_resolvers.get(value[0], [])
-            resolvers += self.yaml_implicit_resolvers.get(None, [])
-            for tag, regexp in resolvers:
-                if regexp.match(value):
-                    return tag
-            implicit = implicit[1]
-        if self.yaml_path_resolvers:
-            exact_paths = self.resolver_exact_paths[-1]
-            if kind in exact_paths:
-                return exact_paths[kind]
-            if None in exact_paths:
-                return exact_paths[None]
-        if kind is ScalarNode:
-            return self.DEFAULT_SCALAR_TAG
-        elif kind is SequenceNode:
-            return self.DEFAULT_SEQUENCE_TAG
-        elif kind is MappingNode:
-            return self.DEFAULT_MAPPING_TAG
-
-class Resolver(BaseResolver):
-    pass
-
-Resolver.add_implicit_resolver(
-        'tag:yaml.org,2002:bool',
-        re.compile(r'''^(?:yes|Yes|YES|no|No|NO
-                    |true|True|TRUE|false|False|FALSE
-                    |on|On|ON|off|Off|OFF)$''', re.X),
-        list('yYnNtTfFoO'))
-
-Resolver.add_implicit_resolver(
-        'tag:yaml.org,2002:float',
-        re.compile(r'''^(?:[-+]?(?:[0-9][0-9_]*)\.[0-9_]*(?:[eE][-+][0-9]+)?
-                    |\.[0-9_]+(?:[eE][-+][0-9]+)?
-                    |[-+]?[0-9][0-9_]*(?::[0-5]?[0-9])+\.[0-9_]*
-                    |[-+]?\.(?:inf|Inf|INF)
-                    |\.(?:nan|NaN|NAN))$''', re.X),
-        list('-+0123456789.'))
-
-Resolver.add_implicit_resolver(
-        'tag:yaml.org,2002:int',
-        re.compile(r'''^(?:[-+]?0b[0-1_]+
-                    |[-+]?0[0-7_]+
-                    |[-+]?(?:0|[1-9][0-9_]*)
-                    |[-+]?0x[0-9a-fA-F_]+
-                    |[-+]?[1-9][0-9_]*(?::[0-5]?[0-9])+)$''', re.X),
-        list('-+0123456789'))
-
-Resolver.add_implicit_resolver(
-        'tag:yaml.org,2002:merge',
-        re.compile(r'^(?:<<)$'),
-        ['<'])
-
-Resolver.add_implicit_resolver(
-        'tag:yaml.org,2002:null',
-        re.compile(r'''^(?: ~
-                    |null|Null|NULL
-                    | )$''', re.X),
-        ['~', 'n', 'N', ''])
-
-Resolver.add_implicit_resolver(
-        'tag:yaml.org,2002:timestamp',
-        re.compile(r'''^(?:[0-9][0-9][0-9][0-9]-[0-9][0-9]-[0-9][0-9]
-                    |[0-9][0-9][0-9][0-9] -[0-9][0-9]? -[0-9][0-9]?
-                     (?:[Tt]|[ \t]+)[0-9][0-9]?
-                     :[0-9][0-9] :[0-9][0-9] (?:\.[0-9]*)?
-                     (?:[ \t]*(?:Z|[-+][0-9][0-9]?(?::[0-9][0-9])?))?)$''', re.X),
-        list('0123456789'))
-
-Resolver.add_implicit_resolver(
-        'tag:yaml.org,2002:value',
-        re.compile(r'^(?:=)$'),
-        ['='])
-
-# The following resolver is only for documentation purposes. It cannot work
-# because plain scalars cannot start with '!', '&', or '*'.
-Resolver.add_implicit_resolver(
-        'tag:yaml.org,2002:yaml',
-        re.compile(r'^(?:!|&|\*)$'),
-        list('!&*'))
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/scanner.py b/collectors/python.d.plugin/python_modules/pyyaml3/scanner.py
deleted file mode 100644
index b55854e8b..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/scanner.py
+++ /dev/null
@@ -1,1449 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-# Scanner produces tokens of the following types:
-# STREAM-START
-# STREAM-END
-# DIRECTIVE(name, value)
-# DOCUMENT-START
-# DOCUMENT-END
-# BLOCK-SEQUENCE-START
-# BLOCK-MAPPING-START
-# BLOCK-END
-# FLOW-SEQUENCE-START
-# FLOW-MAPPING-START
-# FLOW-SEQUENCE-END
-# FLOW-MAPPING-END
-# BLOCK-ENTRY
-# FLOW-ENTRY
-# KEY
-# VALUE
-# ALIAS(value)
-# ANCHOR(value)
-# TAG(value)
-# SCALAR(value, plain, style)
-#
-# Read comments in the Scanner code for more details.
-#
-
-__all__ = ['Scanner', 'ScannerError']
-
-from .error import MarkedYAMLError
-from .tokens import *
-
-class ScannerError(MarkedYAMLError):
-    pass
-
-class SimpleKey:
-    # See below simple keys treatment.
-
-    def __init__(self, token_number, required, index, line, column, mark):
-        self.token_number = token_number
-        self.required = required
-        self.index = index
-        self.line = line
-        self.column = column
-        self.mark = mark
-
-class Scanner:
-
-    def __init__(self):
-        """Initialize the scanner."""
-        # It is assumed that Scanner and Reader will have a common descendant.
-        # Reader do the dirty work of checking for BOM and converting the
-        # input data to Unicode. It also adds NUL to the end.
-        #
-        # Reader supports the following methods
-        #   self.peek(i=0)       # peek the next i-th character
-        #   self.prefix(l=1)     # peek the next l characters
-        #   self.forward(l=1)    # read the next l characters and move the pointer.
-
-        # Had we reached the end of the stream?
-        self.done = False
-
-        # The number of unclosed '{' and '['. `flow_level == 0` means block
-        # context.
-        self.flow_level = 0
-
-        # List of processed tokens that are not yet emitted.
-        self.tokens = []
-
-        # Add the STREAM-START token.
-        self.fetch_stream_start()
-
-        # Number of tokens that were emitted through the `get_token` method.
-        self.tokens_taken = 0
-
-        # The current indentation level.
-        self.indent = -1
-
-        # Past indentation levels.
-        self.indents = []
-
-        # Variables related to simple keys treatment.
-
-        # A simple key is a key that is not denoted by the '?' indicator.
-        # Example of simple keys:
-        #   ---
-        #   block simple key: value
-        #   ? not a simple key:
-        #   : { flow simple key: value }
-        # We emit the KEY token before all keys, so when we find a potential
-        # simple key, we try to locate the corresponding ':' indicator.
-        # Simple keys should be limited to a single line and 1024 characters.
-
-        # Can a simple key start at the current position? A simple key may
-        # start:
-        # - at the beginning of the line, not counting indentation spaces
-        #       (in block context),
-        # - after '{', '[', ',' (in the flow context),
-        # - after '?', ':', '-' (in the block context).
-        # In the block context, this flag also signifies if a block collection
-        # may start at the current position.
-        self.allow_simple_key = True
-
-        # Keep track of possible simple keys. This is a dictionary. The key
-        # is `flow_level`; there can be no more that one possible simple key
-        # for each level. The value is a SimpleKey record:
-        #   (token_number, required, index, line, column, mark)
-        # A simple key may start with ALIAS, ANCHOR, TAG, SCALAR(flow),
-        # '[', or '{' tokens.
-        self.possible_simple_keys = {}
-
-    # Public methods.
-
-    def check_token(self, *choices):
-        # Check if the next token is one of the given types.
-        while self.need_more_tokens():
-            self.fetch_more_tokens()
-        if self.tokens:
-            if not choices:
-                return True
-            for choice in choices:
-                if isinstance(self.tokens[0], choice):
-                    return True
-        return False
-
-    def peek_token(self):
-        # Return the next token, but do not delete if from the queue.
-        while self.need_more_tokens():
-            self.fetch_more_tokens()
-        if self.tokens:
-            return self.tokens[0]
-
-    def get_token(self):
-        # Return the next token.
-        while self.need_more_tokens():
-            self.fetch_more_tokens()
-        if self.tokens:
-            self.tokens_taken += 1
-            return self.tokens.pop(0)
-
-    # Private methods.
-
-    def need_more_tokens(self):
-        if self.done:
-            return False
-        if not self.tokens:
-            return True
-        # The current token may be a potential simple key, so we
-        # need to look further.
-        self.stale_possible_simple_keys()
-        if self.next_possible_simple_key() == self.tokens_taken:
-            return True
-
-    def fetch_more_tokens(self):
-
-        # Eat whitespaces and comments until we reach the next token.
-        self.scan_to_next_token()
-
-        # Remove obsolete possible simple keys.
-        self.stale_possible_simple_keys()
-
-        # Compare the current indentation and column. It may add some tokens
-        # and decrease the current indentation level.
-        self.unwind_indent(self.column)
-
-        # Peek the next character.
-        ch = self.peek()
-
-        # Is it the end of stream?
-        if ch == '\0':
-            return self.fetch_stream_end()
-
-        # Is it a directive?
-        if ch == '%' and self.check_directive():
-            return self.fetch_directive()
-
-        # Is it the document start?
-        if ch == '-' and self.check_document_start():
-            return self.fetch_document_start()
-
-        # Is it the document end?
-        if ch == '.' and self.check_document_end():
-            return self.fetch_document_end()
-
-        # TODO: support for BOM within a stream.
-        #if ch == '\uFEFF':
-        #    return self.fetch_bom()    <-- issue BOMToken
-
-        # Note: the order of the following checks is NOT significant.
-
-        # Is it the flow sequence start indicator?
-        if ch == '[':
-            return self.fetch_flow_sequence_start()
-
-        # Is it the flow mapping start indicator?
-        if ch == '{':
-            return self.fetch_flow_mapping_start()
-
-        # Is it the flow sequence end indicator?
-        if ch == ']':
-            return self.fetch_flow_sequence_end()
-
-        # Is it the flow mapping end indicator?
-        if ch == '}':
-            return self.fetch_flow_mapping_end()
-
-        # Is it the flow entry indicator?
-        if ch == ',':
-            return self.fetch_flow_entry()
-
-        # Is it the block entry indicator?
-        if ch == '-' and self.check_block_entry():
-            return self.fetch_block_entry()
-
-        # Is it the key indicator?
-        if ch == '?' and self.check_key():
-            return self.fetch_key()
-
-        # Is it the value indicator?
-        if ch == ':' and self.check_value():
-            return self.fetch_value()
-
-        # Is it an alias?
-        if ch == '*':
-            return self.fetch_alias()
-
-        # Is it an anchor?
-        if ch == '&':
-            return self.fetch_anchor()
-
-        # Is it a tag?
-        if ch == '!':
-            return self.fetch_tag()
-
-        # Is it a literal scalar?
-        if ch == '|' and not self.flow_level:
-            return self.fetch_literal()
-
-        # Is it a folded scalar?
-        if ch == '>' and not self.flow_level:
-            return self.fetch_folded()
-
-        # Is it a single quoted scalar?
-        if ch == '\'':
-            return self.fetch_single()
-
-        # Is it a double quoted scalar?
-        if ch == '\"':
-            return self.fetch_double()
-
-        # It must be a plain scalar then.
-        if self.check_plain():
-            return self.fetch_plain()
-
-        # No? It's an error. Let's produce a nice error message.
-        raise ScannerError("while scanning for the next token", None,
-                "found character %r that cannot start any token" % ch,
-                self.get_mark())
-
-    # Simple keys treatment.
-
-    def next_possible_simple_key(self):
-        # Return the number of the nearest possible simple key. Actually we
-        # don't need to loop through the whole dictionary. We may replace it
-        # with the following code:
-        #   if not self.possible_simple_keys:
-        #       return None
-        #   return self.possible_simple_keys[
-        #           min(self.possible_simple_keys.keys())].token_number
-        min_token_number = None
-        for level in self.possible_simple_keys:
-            key = self.possible_simple_keys[level]
-            if min_token_number is None or key.token_number < min_token_number:
-                min_token_number = key.token_number
-        return min_token_number
-
-    def stale_possible_simple_keys(self):
-        # Remove entries that are no longer possible simple keys. According to
-        # the YAML specification, simple keys
-        # - should be limited to a single line,
-        # - should be no longer than 1024 characters.
-        # Disabling this procedure will allow simple keys of any length and
-        # height (may cause problems if indentation is broken though).
-        for level in list(self.possible_simple_keys):
-            key = self.possible_simple_keys[level]
-            if key.line != self.line  \
-                    or self.index-key.index > 1024:
-                if key.required:
-                    raise ScannerError("while scanning a simple key", key.mark,
-                            "could not found expected ':'", self.get_mark())
-                del self.possible_simple_keys[level]
-
-    def save_possible_simple_key(self):
-        # The next token may start a simple key. We check if it's possible
-        # and save its position. This function is called for
-        #   ALIAS, ANCHOR, TAG, SCALAR(flow), '[', and '{'.
-
-        # Check if a simple key is required at the current position.
-        required = not self.flow_level and self.indent == self.column
-
-        # A simple key is required only if it is the first token in the current
-        # line. Therefore it is always allowed.
-        assert self.allow_simple_key or not required
-
-        # The next token might be a simple key. Let's save it's number and
-        # position.
-        if self.allow_simple_key:
-            self.remove_possible_simple_key()
-            token_number = self.tokens_taken+len(self.tokens)
-            key = SimpleKey(token_number, required,
-                    self.index, self.line, self.column, self.get_mark())
-            self.possible_simple_keys[self.flow_level] = key
-
-    def remove_possible_simple_key(self):
-        # Remove the saved possible key position at the current flow level.
-        if self.flow_level in self.possible_simple_keys:
-            key = self.possible_simple_keys[self.flow_level]
-            
-            if key.required:
-                raise ScannerError("while scanning a simple key", key.mark,
-                        "could not found expected ':'", self.get_mark())
-
-            del self.possible_simple_keys[self.flow_level]
-
-    # Indentation functions.
-
-    def unwind_indent(self, column):
-
-        ## In flow context, tokens should respect indentation.
-        ## Actually the condition should be `self.indent >= column` according to
-        ## the spec. But this condition will prohibit intuitively correct
-        ## constructions such as
-        ## key : {
-        ## }
-        #if self.flow_level and self.indent > column:
-        #    raise ScannerError(None, None,
-        #            "invalid intendation or unclosed '[' or '{'",
-        #            self.get_mark())
-
-        # In the flow context, indentation is ignored. We make the scanner less
-        # restrictive then specification requires.
-        if self.flow_level:
-            return
-
-        # In block context, we may need to issue the BLOCK-END tokens.
-        while self.indent > column:
-            mark = self.get_mark()
-            self.indent = self.indents.pop()
-            self.tokens.append(BlockEndToken(mark, mark))
-
-    def add_indent(self, column):
-        # Check if we need to increase indentation.
-        if self.indent < column:
-            self.indents.append(self.indent)
-            self.indent = column
-            return True
-        return False
-
-    # Fetchers.
-
-    def fetch_stream_start(self):
-        # We always add STREAM-START as the first token and STREAM-END as the
-        # last token.
-
-        # Read the token.
-        mark = self.get_mark()
-        
-        # Add STREAM-START.
-        self.tokens.append(StreamStartToken(mark, mark,
-            encoding=self.encoding))
-        
-
-    def fetch_stream_end(self):
-
-        # Set the current intendation to -1.
-        self.unwind_indent(-1)
-
-        # Reset simple keys.
-        self.remove_possible_simple_key()
-        self.allow_simple_key = False
-        self.possible_simple_keys = {}
-
-        # Read the token.
-        mark = self.get_mark()
-        
-        # Add STREAM-END.
-        self.tokens.append(StreamEndToken(mark, mark))
-
-        # The steam is finished.
-        self.done = True
-
-    def fetch_directive(self):
-        
-        # Set the current intendation to -1.
-        self.unwind_indent(-1)
-
-        # Reset simple keys.
-        self.remove_possible_simple_key()
-        self.allow_simple_key = False
-
-        # Scan and add DIRECTIVE.
-        self.tokens.append(self.scan_directive())
-
-    def fetch_document_start(self):
-        self.fetch_document_indicator(DocumentStartToken)
-
-    def fetch_document_end(self):
-        self.fetch_document_indicator(DocumentEndToken)
-
-    def fetch_document_indicator(self, TokenClass):
-
-        # Set the current intendation to -1.
-        self.unwind_indent(-1)
-
-        # Reset simple keys. Note that there could not be a block collection
-        # after '---'.
-        self.remove_possible_simple_key()
-        self.allow_simple_key = False
-
-        # Add DOCUMENT-START or DOCUMENT-END.
-        start_mark = self.get_mark()
-        self.forward(3)
-        end_mark = self.get_mark()
-        self.tokens.append(TokenClass(start_mark, end_mark))
-
-    def fetch_flow_sequence_start(self):
-        self.fetch_flow_collection_start(FlowSequenceStartToken)
-
-    def fetch_flow_mapping_start(self):
-        self.fetch_flow_collection_start(FlowMappingStartToken)
-
-    def fetch_flow_collection_start(self, TokenClass):
-
-        # '[' and '{' may start a simple key.
-        self.save_possible_simple_key()
-
-        # Increase the flow level.
-        self.flow_level += 1
-
-        # Simple keys are allowed after '[' and '{'.
-        self.allow_simple_key = True
-
-        # Add FLOW-SEQUENCE-START or FLOW-MAPPING-START.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(TokenClass(start_mark, end_mark))
-
-    def fetch_flow_sequence_end(self):
-        self.fetch_flow_collection_end(FlowSequenceEndToken)
-
-    def fetch_flow_mapping_end(self):
-        self.fetch_flow_collection_end(FlowMappingEndToken)
-
-    def fetch_flow_collection_end(self, TokenClass):
-
-        # Reset possible simple key on the current level.
-        self.remove_possible_simple_key()
-
-        # Decrease the flow level.
-        self.flow_level -= 1
-
-        # No simple keys after ']' or '}'.
-        self.allow_simple_key = False
-
-        # Add FLOW-SEQUENCE-END or FLOW-MAPPING-END.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(TokenClass(start_mark, end_mark))
-
-    def fetch_flow_entry(self):
-
-        # Simple keys are allowed after ','.
-        self.allow_simple_key = True
-
-        # Reset possible simple key on the current level.
-        self.remove_possible_simple_key()
-
-        # Add FLOW-ENTRY.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(FlowEntryToken(start_mark, end_mark))
-
-    def fetch_block_entry(self):
-
-        # Block context needs additional checks.
-        if not self.flow_level:
-
-            # Are we allowed to start a new entry?
-            if not self.allow_simple_key:
-                raise ScannerError(None, None,
-                        "sequence entries are not allowed here",
-                        self.get_mark())
-
-            # We may need to add BLOCK-SEQUENCE-START.
-            if self.add_indent(self.column):
-                mark = self.get_mark()
-                self.tokens.append(BlockSequenceStartToken(mark, mark))
-
-        # It's an error for the block entry to occur in the flow context,
-        # but we let the parser detect this.
-        else:
-            pass
-
-        # Simple keys are allowed after '-'.
-        self.allow_simple_key = True
-
-        # Reset possible simple key on the current level.
-        self.remove_possible_simple_key()
-
-        # Add BLOCK-ENTRY.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(BlockEntryToken(start_mark, end_mark))
-
-    def fetch_key(self):
-        
-        # Block context needs additional checks.
-        if not self.flow_level:
-
-            # Are we allowed to start a key (not nessesary a simple)?
-            if not self.allow_simple_key:
-                raise ScannerError(None, None,
-                        "mapping keys are not allowed here",
-                        self.get_mark())
-
-            # We may need to add BLOCK-MAPPING-START.
-            if self.add_indent(self.column):
-                mark = self.get_mark()
-                self.tokens.append(BlockMappingStartToken(mark, mark))
-
-        # Simple keys are allowed after '?' in the block context.
-        self.allow_simple_key = not self.flow_level
-
-        # Reset possible simple key on the current level.
-        self.remove_possible_simple_key()
-
-        # Add KEY.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(KeyToken(start_mark, end_mark))
-
-    def fetch_value(self):
-
-        # Do we determine a simple key?
-        if self.flow_level in self.possible_simple_keys:
-
-            # Add KEY.
-            key = self.possible_simple_keys[self.flow_level]
-            del self.possible_simple_keys[self.flow_level]
-            self.tokens.insert(key.token_number-self.tokens_taken,
-                    KeyToken(key.mark, key.mark))
-
-            # If this key starts a new block mapping, we need to add
-            # BLOCK-MAPPING-START.
-            if not self.flow_level:
-                if self.add_indent(key.column):
-                    self.tokens.insert(key.token_number-self.tokens_taken,
-                            BlockMappingStartToken(key.mark, key.mark))
-
-            # There cannot be two simple keys one after another.
-            self.allow_simple_key = False
-
-        # It must be a part of a complex key.
-        else:
-            
-            # Block context needs additional checks.
-            # (Do we really need them? They will be catched by the parser
-            # anyway.)
-            if not self.flow_level:
-
-                # We are allowed to start a complex value if and only if
-                # we can start a simple key.
-                if not self.allow_simple_key:
-                    raise ScannerError(None, None,
-                            "mapping values are not allowed here",
-                            self.get_mark())
-
-            # If this value starts a new block mapping, we need to add
-            # BLOCK-MAPPING-START.  It will be detected as an error later by
-            # the parser.
-            if not self.flow_level:
-                if self.add_indent(self.column):
-                    mark = self.get_mark()
-                    self.tokens.append(BlockMappingStartToken(mark, mark))
-
-            # Simple keys are allowed after ':' in the block context.
-            self.allow_simple_key = not self.flow_level
-
-            # Reset possible simple key on the current level.
-            self.remove_possible_simple_key()
-
-        # Add VALUE.
-        start_mark = self.get_mark()
-        self.forward()
-        end_mark = self.get_mark()
-        self.tokens.append(ValueToken(start_mark, end_mark))
-
-    def fetch_alias(self):
-
-        # ALIAS could be a simple key.
-        self.save_possible_simple_key()
-
-        # No simple keys after ALIAS.
-        self.allow_simple_key = False
-
-        # Scan and add ALIAS.
-        self.tokens.append(self.scan_anchor(AliasToken))
-
-    def fetch_anchor(self):
-
-        # ANCHOR could start a simple key.
-        self.save_possible_simple_key()
-
-        # No simple keys after ANCHOR.
-        self.allow_simple_key = False
-
-        # Scan and add ANCHOR.
-        self.tokens.append(self.scan_anchor(AnchorToken))
-
-    def fetch_tag(self):
-
-        # TAG could start a simple key.
-        self.save_possible_simple_key()
-
-        # No simple keys after TAG.
-        self.allow_simple_key = False
-
-        # Scan and add TAG.
-        self.tokens.append(self.scan_tag())
-
-    def fetch_literal(self):
-        self.fetch_block_scalar(style='|')
-
-    def fetch_folded(self):
-        self.fetch_block_scalar(style='>')
-
-    def fetch_block_scalar(self, style):
-
-        # A simple key may follow a block scalar.
-        self.allow_simple_key = True
-
-        # Reset possible simple key on the current level.
-        self.remove_possible_simple_key()
-
-        # Scan and add SCALAR.
-        self.tokens.append(self.scan_block_scalar(style))
-
-    def fetch_single(self):
-        self.fetch_flow_scalar(style='\'')
-
-    def fetch_double(self):
-        self.fetch_flow_scalar(style='"')
-
-    def fetch_flow_scalar(self, style):
-
-        # A flow scalar could be a simple key.
-        self.save_possible_simple_key()
-
-        # No simple keys after flow scalars.
-        self.allow_simple_key = False
-
-        # Scan and add SCALAR.
-        self.tokens.append(self.scan_flow_scalar(style))
-
-    def fetch_plain(self):
-
-        # A plain scalar could be a simple key.
-        self.save_possible_simple_key()
-
-        # No simple keys after plain scalars. But note that `scan_plain` will
-        # change this flag if the scan is finished at the beginning of the
-        # line.
-        self.allow_simple_key = False
-
-        # Scan and add SCALAR. May change `allow_simple_key`.
-        self.tokens.append(self.scan_plain())
-
-    # Checkers.
-
-    def check_directive(self):
-
-        # DIRECTIVE:        ^ '%' ...
-        # The '%' indicator is already checked.
-        if self.column == 0:
-            return True
-
-    def check_document_start(self):
-
-        # DOCUMENT-START:   ^ '---' (' '|'\n')
-        if self.column == 0:
-            if self.prefix(3) == '---'  \
-                    and self.peek(3) in '\0 \t\r\n\x85\u2028\u2029':
-                return True
-
-    def check_document_end(self):
-
-        # DOCUMENT-END:     ^ '...' (' '|'\n')
-        if self.column == 0:
-            if self.prefix(3) == '...'  \
-                    and self.peek(3) in '\0 \t\r\n\x85\u2028\u2029':
-                return True
-
-    def check_block_entry(self):
-
-        # BLOCK-ENTRY:      '-' (' '|'\n')
-        return self.peek(1) in '\0 \t\r\n\x85\u2028\u2029'
-
-    def check_key(self):
-
-        # KEY(flow context):    '?'
-        if self.flow_level:
-            return True
-
-        # KEY(block context):   '?' (' '|'\n')
-        else:
-            return self.peek(1) in '\0 \t\r\n\x85\u2028\u2029'
-
-    def check_value(self):
-
-        # VALUE(flow context):  ':'
-        if self.flow_level:
-            return True
-
-        # VALUE(block context): ':' (' '|'\n')
-        else:
-            return self.peek(1) in '\0 \t\r\n\x85\u2028\u2029'
-
-    def check_plain(self):
-
-        # A plain scalar may start with any non-space character except:
-        #   '-', '?', ':', ',', '[', ']', '{', '}',
-        #   '#', '&', '*', '!', '|', '>', '\'', '\"',
-        #   '%', '@', '`'.
-        #
-        # It may also start with
-        #   '-', '?', ':'
-        # if it is followed by a non-space character.
-        #
-        # Note that we limit the last rule to the block context (except the
-        # '-' character) because we want the flow context to be space
-        # independent.
-        ch = self.peek()
-        return ch not in '\0 \t\r\n\x85\u2028\u2029-?:,[]{}#&*!|>\'\"%@`'  \
-                or (self.peek(1) not in '\0 \t\r\n\x85\u2028\u2029'
-                        and (ch == '-' or (not self.flow_level and ch in '?:')))
-
-    # Scanners.
-
-    def scan_to_next_token(self):
-        # We ignore spaces, line breaks and comments.
-        # If we find a line break in the block context, we set the flag
-        # `allow_simple_key` on.
-        # The byte order mark is stripped if it's the first character in the
-        # stream. We do not yet support BOM inside the stream as the
-        # specification requires. Any such mark will be considered as a part
-        # of the document.
-        #
-        # TODO: We need to make tab handling rules more sane. A good rule is
-        #   Tabs cannot precede tokens
-        #   BLOCK-SEQUENCE-START, BLOCK-MAPPING-START, BLOCK-END,
-        #   KEY(block), VALUE(block), BLOCK-ENTRY
-        # So the checking code is
-        #   if <TAB>:
-        #       self.allow_simple_keys = False
-        # We also need to add the check for `allow_simple_keys == True` to
-        # `unwind_indent` before issuing BLOCK-END.
-        # Scanners for block, flow, and plain scalars need to be modified.
-
-        if self.index == 0 and self.peek() == '\uFEFF':
-            self.forward()
-        found = False
-        while not found:
-            while self.peek() == ' ':
-                self.forward()
-            if self.peek() == '#':
-                while self.peek() not in '\0\r\n\x85\u2028\u2029':
-                    self.forward()
-            if self.scan_line_break():
-                if not self.flow_level:
-                    self.allow_simple_key = True
-            else:
-                found = True
-
-    def scan_directive(self):
-        # See the specification for details.
-        start_mark = self.get_mark()
-        self.forward()
-        name = self.scan_directive_name(start_mark)
-        value = None
-        if name == 'YAML':
-            value = self.scan_yaml_directive_value(start_mark)
-            end_mark = self.get_mark()
-        elif name == 'TAG':
-            value = self.scan_tag_directive_value(start_mark)
-            end_mark = self.get_mark()
-        else:
-            end_mark = self.get_mark()
-            while self.peek() not in '\0\r\n\x85\u2028\u2029':
-                self.forward()
-        self.scan_directive_ignored_line(start_mark)
-        return DirectiveToken(name, value, start_mark, end_mark)
-
-    def scan_directive_name(self, start_mark):
-        # See the specification for details.
-        length = 0
-        ch = self.peek(length)
-        while '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z'  \
-                or ch in '-_':
-            length += 1
-            ch = self.peek(length)
-        if not length:
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected alphabetic or numeric character, but found %r"
-                    % ch, self.get_mark())
-        value = self.prefix(length)
-        self.forward(length)
-        ch = self.peek()
-        if ch not in '\0 \r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected alphabetic or numeric character, but found %r"
-                    % ch, self.get_mark())
-        return value
-
-    def scan_yaml_directive_value(self, start_mark):
-        # See the specification for details.
-        while self.peek() == ' ':
-            self.forward()
-        major = self.scan_yaml_directive_number(start_mark)
-        if self.peek() != '.':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected a digit or '.', but found %r" % self.peek(),
-                    self.get_mark())
-        self.forward()
-        minor = self.scan_yaml_directive_number(start_mark)
-        if self.peek() not in '\0 \r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected a digit or ' ', but found %r" % self.peek(),
-                    self.get_mark())
-        return (major, minor)
-
-    def scan_yaml_directive_number(self, start_mark):
-        # See the specification for details.
-        ch = self.peek()
-        if not ('0' <= ch <= '9'):
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected a digit, but found %r" % ch, self.get_mark())
-        length = 0
-        while '0' <= self.peek(length) <= '9':
-            length += 1
-        value = int(self.prefix(length))
-        self.forward(length)
-        return value
-
-    def scan_tag_directive_value(self, start_mark):
-        # See the specification for details.
-        while self.peek() == ' ':
-            self.forward()
-        handle = self.scan_tag_directive_handle(start_mark)
-        while self.peek() == ' ':
-            self.forward()
-        prefix = self.scan_tag_directive_prefix(start_mark)
-        return (handle, prefix)
-
-    def scan_tag_directive_handle(self, start_mark):
-        # See the specification for details.
-        value = self.scan_tag_handle('directive', start_mark)
-        ch = self.peek()
-        if ch != ' ':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected ' ', but found %r" % ch, self.get_mark())
-        return value
-
-    def scan_tag_directive_prefix(self, start_mark):
-        # See the specification for details.
-        value = self.scan_tag_uri('directive', start_mark)
-        ch = self.peek()
-        if ch not in '\0 \r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected ' ', but found %r" % ch, self.get_mark())
-        return value
-
-    def scan_directive_ignored_line(self, start_mark):
-        # See the specification for details.
-        while self.peek() == ' ':
-            self.forward()
-        if self.peek() == '#':
-            while self.peek() not in '\0\r\n\x85\u2028\u2029':
-                self.forward()
-        ch = self.peek()
-        if ch not in '\0\r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a directive", start_mark,
-                    "expected a comment or a line break, but found %r"
-                        % ch, self.get_mark())
-        self.scan_line_break()
-
-    def scan_anchor(self, TokenClass):
-        # The specification does not restrict characters for anchors and
-        # aliases. This may lead to problems, for instance, the document:
-        #   [ *alias, value ]
-        # can be interpteted in two ways, as
-        #   [ "value" ]
-        # and
-        #   [ *alias , "value" ]
-        # Therefore we restrict aliases to numbers and ASCII letters.
-        start_mark = self.get_mark()
-        indicator = self.peek()
-        if indicator == '*':
-            name = 'alias'
-        else:
-            name = 'anchor'
-        self.forward()
-        length = 0
-        ch = self.peek(length)
-        while '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z'  \
-                or ch in '-_':
-            length += 1
-            ch = self.peek(length)
-        if not length:
-            raise ScannerError("while scanning an %s" % name, start_mark,
-                    "expected alphabetic or numeric character, but found %r"
-                    % ch, self.get_mark())
-        value = self.prefix(length)
-        self.forward(length)
-        ch = self.peek()
-        if ch not in '\0 \t\r\n\x85\u2028\u2029?:,]}%@`':
-            raise ScannerError("while scanning an %s" % name, start_mark,
-                    "expected alphabetic or numeric character, but found %r"
-                    % ch, self.get_mark())
-        end_mark = self.get_mark()
-        return TokenClass(value, start_mark, end_mark)
-
-    def scan_tag(self):
-        # See the specification for details.
-        start_mark = self.get_mark()
-        ch = self.peek(1)
-        if ch == '<':
-            handle = None
-            self.forward(2)
-            suffix = self.scan_tag_uri('tag', start_mark)
-            if self.peek() != '>':
-                raise ScannerError("while parsing a tag", start_mark,
-                        "expected '>', but found %r" % self.peek(),
-                        self.get_mark())
-            self.forward()
-        elif ch in '\0 \t\r\n\x85\u2028\u2029':
-            handle = None
-            suffix = '!'
-            self.forward()
-        else:
-            length = 1
-            use_handle = False
-            while ch not in '\0 \r\n\x85\u2028\u2029':
-                if ch == '!':
-                    use_handle = True
-                    break
-                length += 1
-                ch = self.peek(length)
-            handle = '!'
-            if use_handle:
-                handle = self.scan_tag_handle('tag', start_mark)
-            else:
-                handle = '!'
-                self.forward()
-            suffix = self.scan_tag_uri('tag', start_mark)
-        ch = self.peek()
-        if ch not in '\0 \r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a tag", start_mark,
-                    "expected ' ', but found %r" % ch, self.get_mark())
-        value = (handle, suffix)
-        end_mark = self.get_mark()
-        return TagToken(value, start_mark, end_mark)
-
-    def scan_block_scalar(self, style):
-        # See the specification for details.
-
-        if style == '>':
-            folded = True
-        else:
-            folded = False
-
-        chunks = []
-        start_mark = self.get_mark()
-
-        # Scan the header.
-        self.forward()
-        chomping, increment = self.scan_block_scalar_indicators(start_mark)
-        self.scan_block_scalar_ignored_line(start_mark)
-
-        # Determine the indentation level and go to the first non-empty line.
-        min_indent = self.indent+1
-        if min_indent < 1:
-            min_indent = 1
-        if increment is None:
-            breaks, max_indent, end_mark = self.scan_block_scalar_indentation()
-            indent = max(min_indent, max_indent)
-        else:
-            indent = min_indent+increment-1
-            breaks, end_mark = self.scan_block_scalar_breaks(indent)
-        line_break = ''
-
-        # Scan the inner part of the block scalar.
-        while self.column == indent and self.peek() != '\0':
-            chunks.extend(breaks)
-            leading_non_space = self.peek() not in ' \t'
-            length = 0
-            while self.peek(length) not in '\0\r\n\x85\u2028\u2029':
-                length += 1
-            chunks.append(self.prefix(length))
-            self.forward(length)
-            line_break = self.scan_line_break()
-            breaks, end_mark = self.scan_block_scalar_breaks(indent)
-            if self.column == indent and self.peek() != '\0':
-
-                # Unfortunately, folding rules are ambiguous.
-                #
-                # This is the folding according to the specification:
-                
-                if folded and line_break == '\n'    \
-                        and leading_non_space and self.peek() not in ' \t':
-                    if not breaks:
-                        chunks.append(' ')
-                else:
-                    chunks.append(line_break)
-                
-                # This is Clark Evans's interpretation (also in the spec
-                # examples):
-                #
-                #if folded and line_break == '\n':
-                #    if not breaks:
-                #        if self.peek() not in ' \t':
-                #            chunks.append(' ')
-                #        else:
-                #            chunks.append(line_break)
-                #else:
-                #    chunks.append(line_break)
-            else:
-                break
-
-        # Chomp the tail.
-        if chomping is not False:
-            chunks.append(line_break)
-        if chomping is True:
-            chunks.extend(breaks)
-
-        # We are done.
-        return ScalarToken(''.join(chunks), False, start_mark, end_mark,
-                style)
-
-    def scan_block_scalar_indicators(self, start_mark):
-        # See the specification for details.
-        chomping = None
-        increment = None
-        ch = self.peek()
-        if ch in '+-':
-            if ch == '+':
-                chomping = True
-            else:
-                chomping = False
-            self.forward()
-            ch = self.peek()
-            if ch in '0123456789':
-                increment = int(ch)
-                if increment == 0:
-                    raise ScannerError("while scanning a block scalar", start_mark,
-                            "expected indentation indicator in the range 1-9, but found 0",
-                            self.get_mark())
-                self.forward()
-        elif ch in '0123456789':
-            increment = int(ch)
-            if increment == 0:
-                raise ScannerError("while scanning a block scalar", start_mark,
-                        "expected indentation indicator in the range 1-9, but found 0",
-                        self.get_mark())
-            self.forward()
-            ch = self.peek()
-            if ch in '+-':
-                if ch == '+':
-                    chomping = True
-                else:
-                    chomping = False
-                self.forward()
-        ch = self.peek()
-        if ch not in '\0 \r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a block scalar", start_mark,
-                    "expected chomping or indentation indicators, but found %r"
-                    % ch, self.get_mark())
-        return chomping, increment
-
-    def scan_block_scalar_ignored_line(self, start_mark):
-        # See the specification for details.
-        while self.peek() == ' ':
-            self.forward()
-        if self.peek() == '#':
-            while self.peek() not in '\0\r\n\x85\u2028\u2029':
-                self.forward()
-        ch = self.peek()
-        if ch not in '\0\r\n\x85\u2028\u2029':
-            raise ScannerError("while scanning a block scalar", start_mark,
-                    "expected a comment or a line break, but found %r" % ch,
-                    self.get_mark())
-        self.scan_line_break()
-
-    def scan_block_scalar_indentation(self):
-        # See the specification for details.
-        chunks = []
-        max_indent = 0
-        end_mark = self.get_mark()
-        while self.peek() in ' \r\n\x85\u2028\u2029':
-            if self.peek() != ' ':
-                chunks.append(self.scan_line_break())
-                end_mark = self.get_mark()
-            else:
-                self.forward()
-                if self.column > max_indent:
-                    max_indent = self.column
-        return chunks, max_indent, end_mark
-
-    def scan_block_scalar_breaks(self, indent):
-        # See the specification for details.
-        chunks = []
-        end_mark = self.get_mark()
-        while self.column < indent and self.peek() == ' ':
-            self.forward()
-        while self.peek() in '\r\n\x85\u2028\u2029':
-            chunks.append(self.scan_line_break())
-            end_mark = self.get_mark()
-            while self.column < indent and self.peek() == ' ':
-                self.forward()
-        return chunks, end_mark
-
-    def scan_flow_scalar(self, style):
-        # See the specification for details.
-        # Note that we loose indentation rules for quoted scalars. Quoted
-        # scalars don't need to adhere indentation because " and ' clearly
-        # mark the beginning and the end of them. Therefore we are less
-        # restrictive then the specification requires. We only need to check
-        # that document separators are not included in scalars.
-        if style == '"':
-            double = True
-        else:
-            double = False
-        chunks = []
-        start_mark = self.get_mark()
-        quote = self.peek()
-        self.forward()
-        chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
-        while self.peek() != quote:
-            chunks.extend(self.scan_flow_scalar_spaces(double, start_mark))
-            chunks.extend(self.scan_flow_scalar_non_spaces(double, start_mark))
-        self.forward()
-        end_mark = self.get_mark()
-        return ScalarToken(''.join(chunks), False, start_mark, end_mark,
-                style)
-
-    ESCAPE_REPLACEMENTS = {
-        '0':    '\0',
-        'a':    '\x07',
-        'b':    '\x08',
-        't':    '\x09',
-        '\t':   '\x09',
-        'n':    '\x0A',
-        'v':    '\x0B',
-        'f':    '\x0C',
-        'r':    '\x0D',
-        'e':    '\x1B',
-        ' ':    '\x20',
-        '\"':   '\"',
-        '\\':   '\\',
-        'N':    '\x85',
-        '_':    '\xA0',
-        'L':    '\u2028',
-        'P':    '\u2029',
-    }
-
-    ESCAPE_CODES = {
-        'x':    2,
-        'u':    4,
-        'U':    8,
-    }
-
-    def scan_flow_scalar_non_spaces(self, double, start_mark):
-        # See the specification for details.
-        chunks = []
-        while True:
-            length = 0
-            while self.peek(length) not in '\'\"\\\0 \t\r\n\x85\u2028\u2029':
-                length += 1
-            if length:
-                chunks.append(self.prefix(length))
-                self.forward(length)
-            ch = self.peek()
-            if not double and ch == '\'' and self.peek(1) == '\'':
-                chunks.append('\'')
-                self.forward(2)
-            elif (double and ch == '\'') or (not double and ch in '\"\\'):
-                chunks.append(ch)
-                self.forward()
-            elif double and ch == '\\':
-                self.forward()
-                ch = self.peek()
-                if ch in self.ESCAPE_REPLACEMENTS:
-                    chunks.append(self.ESCAPE_REPLACEMENTS[ch])
-                    self.forward()
-                elif ch in self.ESCAPE_CODES:
-                    length = self.ESCAPE_CODES[ch]
-                    self.forward()
-                    for k in range(length):
-                        if self.peek(k) not in '0123456789ABCDEFabcdef':
-                            raise ScannerError("while scanning a double-quoted scalar", start_mark,
-                                    "expected escape sequence of %d hexdecimal numbers, but found %r" %
-                                        (length, self.peek(k)), self.get_mark())
-                    code = int(self.prefix(length), 16)
-                    chunks.append(chr(code))
-                    self.forward(length)
-                elif ch in '\r\n\x85\u2028\u2029':
-                    self.scan_line_break()
-                    chunks.extend(self.scan_flow_scalar_breaks(double, start_mark))
-                else:
-                    raise ScannerError("while scanning a double-quoted scalar", start_mark,
-                            "found unknown escape character %r" % ch, self.get_mark())
-            else:
-                return chunks
-
-    def scan_flow_scalar_spaces(self, double, start_mark):
-        # See the specification for details.
-        chunks = []
-        length = 0
-        while self.peek(length) in ' \t':
-            length += 1
-        whitespaces = self.prefix(length)
-        self.forward(length)
-        ch = self.peek()
-        if ch == '\0':
-            raise ScannerError("while scanning a quoted scalar", start_mark,
-                    "found unexpected end of stream", self.get_mark())
-        elif ch in '\r\n\x85\u2028\u2029':
-            line_break = self.scan_line_break()
-            breaks = self.scan_flow_scalar_breaks(double, start_mark)
-            if line_break != '\n':
-                chunks.append(line_break)
-            elif not breaks:
-                chunks.append(' ')
-            chunks.extend(breaks)
-        else:
-            chunks.append(whitespaces)
-        return chunks
-
-    def scan_flow_scalar_breaks(self, double, start_mark):
-        # See the specification for details.
-        chunks = []
-        while True:
-            # Instead of checking indentation, we check for document
-            # separators.
-            prefix = self.prefix(3)
-            if (prefix == '---' or prefix == '...')   \
-                    and self.peek(3) in '\0 \t\r\n\x85\u2028\u2029':
-                raise ScannerError("while scanning a quoted scalar", start_mark,
-                        "found unexpected document separator", self.get_mark())
-            while self.peek() in ' \t':
-                self.forward()
-            if self.peek() in '\r\n\x85\u2028\u2029':
-                chunks.append(self.scan_line_break())
-            else:
-                return chunks
-
-    def scan_plain(self):
-        # See the specification for details.
-        # We add an additional restriction for the flow context:
-        #   plain scalars in the flow context cannot contain ',', ':' and '?'.
-        # We also keep track of the `allow_simple_key` flag here.
-        # Indentation rules are loosed for the flow context.
-        chunks = []
-        start_mark = self.get_mark()
-        end_mark = start_mark
-        indent = self.indent+1
-        # We allow zero indentation for scalars, but then we need to check for
-        # document separators at the beginning of the line.
-        #if indent == 0:
-        #    indent = 1
-        spaces = []
-        while True:
-            length = 0
-            if self.peek() == '#':
-                break
-            while True:
-                ch = self.peek(length)
-                if ch in '\0 \t\r\n\x85\u2028\u2029'    \
-                        or (not self.flow_level and ch == ':' and
-                                self.peek(length+1) in '\0 \t\r\n\x85\u2028\u2029') \
-                        or (self.flow_level and ch in ',:?[]{}'):
-                    break
-                length += 1
-            # It's not clear what we should do with ':' in the flow context.
-            if (self.flow_level and ch == ':'
-                    and self.peek(length+1) not in '\0 \t\r\n\x85\u2028\u2029,[]{}'):
-                self.forward(length)
-                raise ScannerError("while scanning a plain scalar", start_mark,
-                    "found unexpected ':'", self.get_mark(),
-                    "Please check http://pyyaml.org/wiki/YAMLColonInFlowContext for details.")
-            if length == 0:
-                break
-            self.allow_simple_key = False
-            chunks.extend(spaces)
-            chunks.append(self.prefix(length))
-            self.forward(length)
-            end_mark = self.get_mark()
-            spaces = self.scan_plain_spaces(indent, start_mark)
-            if not spaces or self.peek() == '#' \
-                    or (not self.flow_level and self.column < indent):
-                break
-        return ScalarToken(''.join(chunks), True, start_mark, end_mark)
-
-    def scan_plain_spaces(self, indent, start_mark):
-        # See the specification for details.
-        # The specification is really confusing about tabs in plain scalars.
-        # We just forbid them completely. Do not use tabs in YAML!
-        chunks = []
-        length = 0
-        while self.peek(length) in ' ':
-            length += 1
-        whitespaces = self.prefix(length)
-        self.forward(length)
-        ch = self.peek()
-        if ch in '\r\n\x85\u2028\u2029':
-            line_break = self.scan_line_break()
-            self.allow_simple_key = True
-            prefix = self.prefix(3)
-            if (prefix == '---' or prefix == '...')   \
-                    and self.peek(3) in '\0 \t\r\n\x85\u2028\u2029':
-                return
-            breaks = []
-            while self.peek() in ' \r\n\x85\u2028\u2029':
-                if self.peek() == ' ':
-                    self.forward()
-                else:
-                    breaks.append(self.scan_line_break())
-                    prefix = self.prefix(3)
-                    if (prefix == '---' or prefix == '...')   \
-                            and self.peek(3) in '\0 \t\r\n\x85\u2028\u2029':
-                        return
-            if line_break != '\n':
-                chunks.append(line_break)
-            elif not breaks:
-                chunks.append(' ')
-            chunks.extend(breaks)
-        elif whitespaces:
-            chunks.append(whitespaces)
-        return chunks
-
-    def scan_tag_handle(self, name, start_mark):
-        # See the specification for details.
-        # For some strange reasons, the specification does not allow '_' in
-        # tag handles. I have allowed it anyway.
-        ch = self.peek()
-        if ch != '!':
-            raise ScannerError("while scanning a %s" % name, start_mark,
-                    "expected '!', but found %r" % ch, self.get_mark())
-        length = 1
-        ch = self.peek(length)
-        if ch != ' ':
-            while '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z'  \
-                    or ch in '-_':
-                length += 1
-                ch = self.peek(length)
-            if ch != '!':
-                self.forward(length)
-                raise ScannerError("while scanning a %s" % name, start_mark,
-                        "expected '!', but found %r" % ch, self.get_mark())
-            length += 1
-        value = self.prefix(length)
-        self.forward(length)
-        return value
-
-    def scan_tag_uri(self, name, start_mark):
-        # See the specification for details.
-        # Note: we do not check if URI is well-formed.
-        chunks = []
-        length = 0
-        ch = self.peek(length)
-        while '0' <= ch <= '9' or 'A' <= ch <= 'Z' or 'a' <= ch <= 'z'  \
-                or ch in '-;/?:@&=+$,_.!~*\'()[]%':
-            if ch == '%':
-                chunks.append(self.prefix(length))
-                self.forward(length)
-                length = 0
-                chunks.append(self.scan_uri_escapes(name, start_mark))
-            else:
-                length += 1
-            ch = self.peek(length)
-        if length:
-            chunks.append(self.prefix(length))
-            self.forward(length)
-            length = 0
-        if not chunks:
-            raise ScannerError("while parsing a %s" % name, start_mark,
-                    "expected URI, but found %r" % ch, self.get_mark())
-        return ''.join(chunks)
-
-    def scan_uri_escapes(self, name, start_mark):
-        # See the specification for details.
-        codes = []
-        mark = self.get_mark()
-        while self.peek() == '%':
-            self.forward()
-            for k in range(2):
-                if self.peek(k) not in '0123456789ABCDEFabcdef':
-                    raise ScannerError("while scanning a %s" % name, start_mark,
-                            "expected URI escape sequence of 2 hexdecimal numbers, but found %r"
-                            % self.peek(k), self.get_mark())
-            codes.append(int(self.prefix(2), 16))
-            self.forward(2)
-        try:
-            value = bytes(codes).decode('utf-8')
-        except UnicodeDecodeError as exc:
-            raise ScannerError("while scanning a %s" % name, start_mark, str(exc), mark)
-        return value
-
-    def scan_line_break(self):
-        # Transforms:
-        #   '\r\n'      :   '\n'
-        #   '\r'        :   '\n'
-        #   '\n'        :   '\n'
-        #   '\x85'      :   '\n'
-        #   '\u2028'    :   '\u2028'
-        #   '\u2029     :   '\u2029'
-        #   default     :   ''
-        ch = self.peek()
-        if ch in '\r\n\x85':
-            if self.prefix(2) == '\r\n':
-                self.forward(2)
-            else:
-                self.forward()
-            return '\n'
-        elif ch in '\u2028\u2029':
-            self.forward()
-            return ch
-        return ''
-
-#try:
-#    import psyco
-#    psyco.bind(Scanner)
-#except ImportError:
-#    pass
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/serializer.py b/collectors/python.d.plugin/python_modules/pyyaml3/serializer.py
deleted file mode 100644
index 1ba2f7f9d..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/serializer.py
+++ /dev/null
@@ -1,112 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-__all__ = ['Serializer', 'SerializerError']
-
-from .error import YAMLError
-from .events import *
-from .nodes import *
-
-class SerializerError(YAMLError):
-    pass
-
-class Serializer:
-
-    ANCHOR_TEMPLATE = 'id%03d'
-
-    def __init__(self, encoding=None,
-            explicit_start=None, explicit_end=None, version=None, tags=None):
-        self.use_encoding = encoding
-        self.use_explicit_start = explicit_start
-        self.use_explicit_end = explicit_end
-        self.use_version = version
-        self.use_tags = tags
-        self.serialized_nodes = {}
-        self.anchors = {}
-        self.last_anchor_id = 0
-        self.closed = None
-
-    def open(self):
-        if self.closed is None:
-            self.emit(StreamStartEvent(encoding=self.use_encoding))
-            self.closed = False
-        elif self.closed:
-            raise SerializerError("serializer is closed")
-        else:
-            raise SerializerError("serializer is already opened")
-
-    def close(self):
-        if self.closed is None:
-            raise SerializerError("serializer is not opened")
-        elif not self.closed:
-            self.emit(StreamEndEvent())
-            self.closed = True
-
-    #def __del__(self):
-    #    self.close()
-
-    def serialize(self, node):
-        if self.closed is None:
-            raise SerializerError("serializer is not opened")
-        elif self.closed:
-            raise SerializerError("serializer is closed")
-        self.emit(DocumentStartEvent(explicit=self.use_explicit_start,
-            version=self.use_version, tags=self.use_tags))
-        self.anchor_node(node)
-        self.serialize_node(node, None, None)
-        self.emit(DocumentEndEvent(explicit=self.use_explicit_end))
-        self.serialized_nodes = {}
-        self.anchors = {}
-        self.last_anchor_id = 0
-
-    def anchor_node(self, node):
-        if node in self.anchors:
-            if self.anchors[node] is None:
-                self.anchors[node] = self.generate_anchor(node)
-        else:
-            self.anchors[node] = None
-            if isinstance(node, SequenceNode):
-                for item in node.value:
-                    self.anchor_node(item)
-            elif isinstance(node, MappingNode):
-                for key, value in node.value:
-                    self.anchor_node(key)
-                    self.anchor_node(value)
-
-    def generate_anchor(self, node):
-        self.last_anchor_id += 1
-        return self.ANCHOR_TEMPLATE % self.last_anchor_id
-
-    def serialize_node(self, node, parent, index):
-        alias = self.anchors[node]
-        if node in self.serialized_nodes:
-            self.emit(AliasEvent(alias))
-        else:
-            self.serialized_nodes[node] = True
-            self.descend_resolver(parent, index)
-            if isinstance(node, ScalarNode):
-                detected_tag = self.resolve(ScalarNode, node.value, (True, False))
-                default_tag = self.resolve(ScalarNode, node.value, (False, True))
-                implicit = (node.tag == detected_tag), (node.tag == default_tag)
-                self.emit(ScalarEvent(alias, node.tag, implicit, node.value,
-                    style=node.style))
-            elif isinstance(node, SequenceNode):
-                implicit = (node.tag
-                            == self.resolve(SequenceNode, node.value, True))
-                self.emit(SequenceStartEvent(alias, node.tag, implicit,
-                    flow_style=node.flow_style))
-                index = 0
-                for item in node.value:
-                    self.serialize_node(item, node, index)
-                    index += 1
-                self.emit(SequenceEndEvent())
-            elif isinstance(node, MappingNode):
-                implicit = (node.tag
-                            == self.resolve(MappingNode, node.value, True))
-                self.emit(MappingStartEvent(alias, node.tag, implicit,
-                    flow_style=node.flow_style))
-                for key, value in node.value:
-                    self.serialize_node(key, node, None)
-                    self.serialize_node(value, node, key)
-                self.emit(MappingEndEvent())
-            self.ascend_resolver()
-
diff --git a/collectors/python.d.plugin/python_modules/pyyaml3/tokens.py b/collectors/python.d.plugin/python_modules/pyyaml3/tokens.py
deleted file mode 100644
index c5c4fb116..000000000
--- a/collectors/python.d.plugin/python_modules/pyyaml3/tokens.py
+++ /dev/null
@@ -1,105 +0,0 @@
-# SPDX-License-Identifier: MIT
-
-class Token(object):
-    def __init__(self, start_mark, end_mark):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-    def __repr__(self):
-        attributes = [key for key in self.__dict__
-                if not key.endswith('_mark')]
-        attributes.sort()
-        arguments = ', '.join(['%s=%r' % (key, getattr(self, key))
-                for key in attributes])
-        return '%s(%s)' % (self.__class__.__name__, arguments)
-
-#class BOMToken(Token):
-#    id = '<byte order mark>'
-
-class DirectiveToken(Token):
-    id = '<directive>'
-    def __init__(self, name, value, start_mark, end_mark):
-        self.name = name
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-
-class DocumentStartToken(Token):
-    id = '<document start>'
-
-class DocumentEndToken(Token):
-    id = '<document end>'
-
-class StreamStartToken(Token):
-    id = '<stream start>'
-    def __init__(self, start_mark=None, end_mark=None,
-            encoding=None):
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.encoding = encoding
-
-class StreamEndToken(Token):
-    id = '<stream end>'
-
-class BlockSequenceStartToken(Token):
-    id = '<block sequence start>'
-
-class BlockMappingStartToken(Token):
-    id = '<block mapping start>'
-
-class BlockEndToken(Token):
-    id = '<block end>'
-
-class FlowSequenceStartToken(Token):
-    id = '['
-
-class FlowMappingStartToken(Token):
-    id = '{'
-
-class FlowSequenceEndToken(Token):
-    id = ']'
-
-class FlowMappingEndToken(Token):
-    id = '}'
-
-class KeyToken(Token):
-    id = '?'
-
-class ValueToken(Token):
-    id = ':'
-
-class BlockEntryToken(Token):
-    id = '-'
-
-class FlowEntryToken(Token):
-    id = ','
-
-class AliasToken(Token):
-    id = '<alias>'
-    def __init__(self, value, start_mark, end_mark):
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-
-class AnchorToken(Token):
-    id = '<anchor>'
-    def __init__(self, value, start_mark, end_mark):
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-
-class TagToken(Token):
-    id = '<tag>'
-    def __init__(self, value, start_mark, end_mark):
-        self.value = value
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-
-class ScalarToken(Token):
-    id = '<scalar>'
-    def __init__(self, value, plain, start_mark, end_mark, style=None):
-        self.value = value
-        self.plain = plain
-        self.start_mark = start_mark
-        self.end_mark = end_mark
-        self.style = style
-
diff --git a/collectors/python.d.plugin/python_modules/third_party/__init__.py b/collectors/python.d.plugin/python_modules/third_party/__init__.py
deleted file mode 100644
index e69de29bb..000000000
--- a/collectors/python.d.plugin/python_modules/third_party/__init__.py
+++ /dev/null
diff --git a/collectors/python.d.plugin/python_modules/third_party/boinc_client.py b/collectors/python.d.plugin/python_modules/third_party/boinc_client.py
deleted file mode 100644
index ec21779a0..000000000
--- a/collectors/python.d.plugin/python_modules/third_party/boinc_client.py
+++ /dev/null
@@ -1,515 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-#
-# client.py - Somewhat higher-level GUI_RPC API for BOINC core client
-#
-#    Copyright (C) 2013 Rodrigo Silva (MestreLion) <linux@rodrigosilva.com>
-#    Copyright (C) 2017 Austin S. Hemmelgarn
-#
-# SPDX-License-Identifier: GPL-3.0
-
-# Based on client/boinc_cmd.cpp
-
-import hashlib
-import socket
-import sys
-import time
-from functools import total_ordering
-from xml.etree import ElementTree
-
-GUI_RPC_PASSWD_FILE = "/var/lib/boinc/gui_rpc_auth.cfg"
-
-GUI_RPC_HOSTNAME    = None  # localhost
-GUI_RPC_PORT        = 31416
-GUI_RPC_TIMEOUT     = 1
-
-class Rpc(object):
-    ''' Class to perform GUI RPC calls to a BOINC core client.
-        Usage in a context manager ('with' block) is recommended to ensure
-        disconnect() is called. Using the same instance for all calls is also
-        recommended so it reuses the same socket connection
-        '''
-    def __init__(self, hostname="", port=0, timeout=0, text_output=False):
-        self.hostname = hostname
-        self.port     = port
-        self.timeout  = timeout
-        self.sock = None
-        self.text_output = text_output
-
-    @property
-    def sockargs(self):
-        return (self.hostname, self.port, self.timeout)
-
-    def __enter__(self): self.connect(*self.sockargs); return self
-    def __exit__(self, *args): self.disconnect()
-
-    def connect(self, hostname="", port=0, timeout=0):
-        ''' Connect to (hostname, port) with timeout in seconds.
-            Hostname defaults to None (localhost), and port to 31416
-            Calling multiple times will disconnect previous connection (if any),
-            and (re-)connect to host.
-        '''
-        if self.sock:
-            self.disconnect()
-
-        self.hostname = hostname or GUI_RPC_HOSTNAME
-        self.port     = port     or GUI_RPC_PORT
-        self.timeout  = timeout  or GUI_RPC_TIMEOUT
-
-        self.sock = socket.create_connection(self.sockargs[0:2], self.sockargs[2])
-
-    def disconnect(self):
-        ''' Disconnect from host. Calling multiple times is OK (idempotent)
-        '''
-        if self.sock:
-            self.sock.close()
-            self.sock = None
-
-    def call(self, request, text_output=None):
-        ''' Do an RPC call. Pack and send the XML request and return the
-            unpacked reply. request can be either plain XML text or a
-            xml.etree.ElementTree.Element object. Return ElementTree.Element
-            or XML text according to text_output flag.
-            Will auto-connect if not connected.
-        '''
-        if text_output is None:
-            text_output = self.text_output
-
-        if not self.sock:
-            self.connect(*self.sockargs)
-
-        if not isinstance(request, ElementTree.Element):
-            request = ElementTree.fromstring(request)
-
-        # pack request
-        end = '\003'
-        if sys.version_info[0] < 3:
-            req = "<boinc_gui_rpc_request>\n{0}\n</boinc_gui_rpc_request>\n{1}".format(ElementTree.tostring(request).replace(' />', '/>'), end)
-        else:
-            req = "<boinc_gui_rpc_request>\n{0}\n</boinc_gui_rpc_request>\n{1}".format(ElementTree.tostring(request, encoding='unicode').replace(' />', '/>'), end).encode()
-
-        try:
-            self.sock.sendall(req)
-        except (socket.error, socket.herror, socket.gaierror, socket.timeout):
-            raise
-
-        req = ""
-        while True:
-            try:
-                buf = self.sock.recv(8192)
-                if not buf:
-                    raise socket.error("No data from socket")
-                if sys.version_info[0] >= 3:
-                    buf = buf.decode()
-            except socket.error:
-                raise
-            n = buf.find(end)
-            if not n == -1: break
-            req += buf
-        req += buf[:n]
-
-        # unpack reply (remove root tag, ie: first and last lines)
-        req = '\n'.join(req.strip().rsplit('\n')[1:-1])
-
-        if text_output:
-            return req
-        else:
-            return ElementTree.fromstring(req)
-
-def setattrs_from_xml(obj, xml, attrfuncdict={}):
-    ''' Helper to set values for attributes of a class instance by mapping
-        matching tags from a XML file.
-        attrfuncdict is a dict of functions to customize value data type of
-        each attribute. It falls back to simple int/float/bool/str detection
-        based on values defined in __init__(). This would not be needed if
-        Boinc used standard RPC protocol, which includes data type in XML.
-    '''
-    if not isinstance(xml, ElementTree.Element):
-        xml = ElementTree.fromstring(xml)
-    for e in list(xml):
-        if hasattr(obj, e.tag):
-            attr = getattr(obj, e.tag)
-            attrfunc = attrfuncdict.get(e.tag, None)
-            if attrfunc is None:
-                if   isinstance(attr, bool):  attrfunc = parse_bool
-                elif isinstance(attr, int):   attrfunc = parse_int
-                elif isinstance(attr, float): attrfunc = parse_float
-                elif isinstance(attr, str):   attrfunc = parse_str
-                elif isinstance(attr, list):  attrfunc = parse_list
-                else:                         attrfunc = lambda x: x
-            setattr(obj, e.tag, attrfunc(e))
-        else:
-            pass
-            #print "class missing attribute '%s': %r" % (e.tag, obj)
-    return obj
-
-
-def parse_bool(e):
-    ''' Helper to convert ElementTree.Element.text to boolean.
-        Treat '<foo/>' (and '<foo>[[:blank:]]</foo>') as True
-        Treat '0' and 'false' as False
-    '''
-    if e.text is None:
-        return True
-    else:
-        return bool(e.text) and not e.text.strip().lower() in ('0', 'false')
-
-
-def parse_int(e):
-    ''' Helper to convert ElementTree.Element.text to integer.
-        Treat '<foo/>' (and '<foo></foo>') as 0
-    '''
-    # int(float()) allows casting to int a value expressed as float in XML
-    return 0 if e.text is None else int(float(e.text.strip()))
-
-
-def parse_float(e):
-    ''' Helper to convert ElementTree.Element.text to float. '''
-    return 0.0 if e.text is None else float(e.text.strip())
-
-
-def parse_str(e):
-    ''' Helper to convert ElementTree.Element.text to string. '''
-    return "" if e.text is None else e.text.strip()
-
-
-def parse_list(e):
-    ''' Helper to convert  ElementTree.Element to list. For now, simply return
-        the list of root element's children
-    '''
-    return list(e)
-
-
-class Enum(object):
-    UNKNOWN                =   -1  # Not in original API
-
-    @classmethod
-    def name(cls, value):
-        ''' Quick-and-dirty fallback for getting the "name" of an enum item '''
-
-        # value as string, if it matches an enum attribute.
-        # Allows short usage as Enum.name("VALUE") besides Enum.name(Enum.VALUE)
-        if hasattr(cls, str(value)):
-            return cls.name(getattr(cls, value, None))
-
-        # value not handled in subclass name()
-        for k, v in cls.__dict__.items():
-            if v == value:
-                return k.lower().replace('_', ' ')
-
-        # value not found
-        return cls.name(Enum.UNKNOWN)
-
-
-class CpuSched(Enum):
-    ''' values of ACTIVE_TASK::scheduler_state and ACTIVE_TASK::next_scheduler_state
-        "SCHEDULED" is synonymous with "executing" except when CPU throttling
-        is in use.
-    '''
-    UNINITIALIZED          =    0
-    PREEMPTED              =    1
-    SCHEDULED              =    2
-
-
-class ResultState(Enum):
-    ''' Values of RESULT::state in client.
-        THESE MUST BE IN NUMERICAL ORDER
-        (because of the > comparison in RESULT::computing_done())
-        see html/inc/common_defs.inc
-    '''
-    NEW                    =    0
-        #// New result
-    FILES_DOWNLOADING      =    1
-        #// Input files for result (WU, app version) are being downloaded
-    FILES_DOWNLOADED       =    2
-        #// Files are downloaded, result can be (or is being) computed
-    COMPUTE_ERROR          =    3
-        #// computation failed; no file upload
-    FILES_UPLOADING        =    4
-        #// Output files for result are being uploaded
-    FILES_UPLOADED         =    5
-        #// Files are uploaded, notify scheduling server at some point
-    ABORTED                =    6
-        #// result was aborted
-    UPLOAD_FAILED          =    7
-        #// some output file permanent failure
-
-
-class Process(Enum):
-    ''' values of ACTIVE_TASK::task_state '''
-    UNINITIALIZED          =    0
-        #// process doesn't exist yet
-    EXECUTING              =    1
-        #// process is running, as far as we know
-    SUSPENDED              =    9
-        #// we've sent it a "suspend" message
-    ABORT_PENDING          =    5
-        #// process exceeded limits; send "abort" message, waiting to exit
-    QUIT_PENDING           =    8
-        #// we've sent it a "quit" message, waiting to exit
-    COPY_PENDING           =   10
-        #// waiting for async file copies to finish
-
-
-class _Struct(object):
-    ''' base helper class with common methods for all classes derived from
-        BOINC's C++ structs
-    '''
-    @classmethod
-    def parse(cls, xml):
-        return setattrs_from_xml(cls(), xml)
-
-    def __str__(self, indent=0):
-        buf = '{0}{1}:\n'.format('\t' * indent, self.__class__.__name__)
-        for attr in self.__dict__:
-            value = getattr(self, attr)
-            if isinstance(value, list):
-                buf += '{0}\t{1} [\n'.format('\t' * indent, attr)
-                for v in value: buf += '\t\t{0}\t\t,\n'.format(v)
-                buf += '\t]\n'
-            else:
-                buf += '{0}\t{1}\t{2}\n'.format('\t' * indent,
-                                         attr,
-                                         value.__str__(indent+2)
-                                            if isinstance(value, _Struct)
-                                            else repr(value))
-        return buf
-
-
-@total_ordering
-class VersionInfo(_Struct):
-    def __init__(self, major=0, minor=0, release=0):
-        self.major     = major
-        self.minor     = minor
-        self.release   = release
-
-    @property
-    def _tuple(self):
-        return  (self.major, self.minor, self.release)
-
-    def __eq__(self, other):
-        return isinstance(other, self.__class__) and self._tuple == other._tuple
-
-    def __ne__(self, other):
-        return not self.__eq__(other)
-
-    def __gt__(self, other):
-        if not isinstance(other, self.__class__):
-            return NotImplemented
-        return self._tuple > other._tuple
-
-    def __str__(self):
-        return "{0}.{1}.{2}".format(self.major, self.minor, self.release)
-
-    def __repr__(self):
-        return "{0}{1}".format(self.__class__.__name__, self._tuple)
-
-
-class Result(_Struct):
-    ''' Also called "task" in some contexts '''
-    def __init__(self):
-        # Names and values follow lib/gui_rpc_client.h @ RESULT
-        # Order too, except when grouping contradicts client/result.cpp
-        # RESULT::write_gui(), then XML order is used.
-
-        self.name                         = ""
-        self.wu_name                      = ""
-        self.version_num                  = 0
-            #// identifies the app used
-        self.plan_class                   = ""
-        self.project_url                  = ""  # from PROJECT.master_url
-        self.report_deadline              = 0.0 # seconds since epoch
-        self.received_time                = 0.0 # seconds since epoch
-            #// when we got this from server
-        self.ready_to_report              = False
-            #// we're ready to report this result to the server;
-            #// either computation is done and all the files have been uploaded
-            #// or there was an error
-        self.got_server_ack               = False
-            #// we've received the ack for this result from the server
-        self.final_cpu_time               = 0.0
-        self.final_elapsed_time           = 0.0
-        self.state                        = ResultState.NEW
-        self.estimated_cpu_time_remaining = 0.0
-            #// actually, estimated elapsed time remaining
-        self.exit_status                  = 0
-            #// return value from the application
-        self.suspended_via_gui            = False
-        self.project_suspended_via_gui    = False
-        self.edf_scheduled                = False
-            #// temporary used to tell GUI that this result is deadline-scheduled
-        self.coproc_missing               = False
-            #// a coproc needed by this job is missing
-            #// (e.g. because user removed their GPU board).
-        self.scheduler_wait               = False
-        self.scheduler_wait_reason        = ""
-        self.network_wait                 = False
-        self.resources                    = ""
-            #// textual description of resources used
-
-        #// the following defined if active
-        # XML is generated in client/app.cpp ACTIVE_TASK::write_gui()
-        self.active_task                  = False
-        self.active_task_state            = Process.UNINITIALIZED
-        self.app_version_num              = 0
-        self.slot                         = -1
-        self.pid                          = 0
-        self.scheduler_state              = CpuSched.UNINITIALIZED
-        self.checkpoint_cpu_time          = 0.0
-        self.current_cpu_time             = 0.0
-        self.fraction_done                = 0.0
-        self.elapsed_time                 = 0.0
-        self.swap_size                    = 0
-        self.working_set_size_smoothed    = 0.0
-        self.too_large                    = False
-        self.needs_shmem                  = False
-        self.graphics_exec_path           = ""
-        self.web_graphics_url             = ""
-        self.remote_desktop_addr          = ""
-        self.slot_path                    = ""
-            #// only present if graphics_exec_path is
-
-        # The following are not in original API, but are present in RPC XML reply
-        self.completed_time               = 0.0
-            #// time when ready_to_report was set
-        self.report_immediately           = False
-        self.working_set_size             = 0
-        self.page_fault_rate              = 0.0
-            #// derived by higher-level code
-
-        # The following are in API, but are NEVER in RPC XML reply. Go figure
-        self.signal                       = 0
-
-        self.app                          = None  # APP*
-        self.wup                          = None  # WORKUNIT*
-        self.project                      = None  # PROJECT*
-        self.avp                          = None  # APP_VERSION*
-
-    @classmethod
-    def parse(cls, xml):
-        if not isinstance(xml, ElementTree.Element):
-            xml = ElementTree.fromstring(xml)
-
-        # parse main XML
-        result = super(Result, cls).parse(xml)
-
-        # parse '<active_task>' children
-        active_task = xml.find('active_task')
-        if active_task is None:
-            result.active_task = False  # already the default after __init__()
-        else:
-            result.active_task = True   # already the default after main parse
-            result = setattrs_from_xml(result, active_task)
-
-        #// if CPU time is nonzero but elapsed time is zero,
-        #// we must be talking to an old client.
-        #// Set elapsed = CPU
-        #// (easier to deal with this here than in the manager)
-        if result.current_cpu_time != 0 and result.elapsed_time == 0:
-            result.elapsed_time = result.current_cpu_time
-
-        if result.final_cpu_time != 0 and result.final_elapsed_time == 0:
-            result.final_elapsed_time = result.final_cpu_time
-
-        return result
-
-    def __str__(self):
-        buf = '{0}:\n'.format(self.__class__.__name__)
-        for attr in self.__dict__:
-            value = getattr(self, attr)
-            if attr in ['received_time', 'report_deadline']:
-                value = time.ctime(value)
-            buf += '\t{0}\t{1}\n'.format(attr, value)
-        return buf
-
-
-class BoincClient(object):
-
-    def __init__(self, host="", port=0, passwd=None):
-        self.hostname   = host
-        self.port       = port
-        self.passwd     = passwd
-        self.rpc        = Rpc(text_output=False)
-        self.version    = None
-        self.authorized = False
-
-        # Informative, not authoritative. Records status of *last* RPC call,
-        # but does not infer success about the *next* one.
-        # Thus, it should be read *after* an RPC call, not prior to one
-        self.connected = False
-
-    def __enter__(self): self.connect(); return self
-    def __exit__(self, *args): self.disconnect()
-
-    def connect(self):
-        try:
-            self.rpc.connect(self.hostname, self.port)
-            self.connected = True
-        except socket.error:
-            self.connected = False
-            return
-        self.authorized = self.authorize(self.passwd)
-        self.version = self.exchange_versions()
-
-    def disconnect(self):
-        self.rpc.disconnect()
-
-    def authorize(self, password):
-        ''' Request authorization. If password is None and we are connecting
-            to localhost, try to read password from the local config file
-            GUI_RPC_PASSWD_FILE. If file can't be read (not found or no
-            permission to read), try to authorize with a blank password.
-            If authorization is requested and fails, all subsequent calls
-            will be refused with socket.error 'Connection reset by peer' (104).
-            Since most local calls do no require authorization, do not attempt
-            it if you're not sure about the password.
-        '''
-        if password is None and not self.hostname:
-            password = read_gui_rpc_password() or ""
-        nonce = self.rpc.call('<auth1/>').text
-        authhash = hashlib.md5('{0}{1}'.format(nonce, password).encode()).hexdigest().lower()
-        reply = self.rpc.call('<auth2><nonce_hash>{0}</nonce_hash></auth2>'.format(authhash))
-
-        if reply.tag == 'authorized':
-            return True
-        else:
-            return False
-
-    def exchange_versions(self):
-        ''' Return VersionInfo instance with core client version info '''
-        return VersionInfo.parse(self.rpc.call('<exchange_versions/>'))
-
-    def get_tasks(self):
-        ''' Same as get_results(active_only=False) '''
-        return self.get_results(False)
-
-    def get_results(self, active_only=False):
-        ''' Get a list of results.
-            Those that are in progress will have information such as CPU time
-            and fraction done. Each result includes a name;
-            Use CC_STATE::lookup_result() to find this result in the current static state;
-            if it's not there, call get_state() again.
-        '''
-        reply = self.rpc.call("<get_results><active_only>{0}</active_only></get_results>".format(1 if active_only else 0))
-        if not reply.tag == 'results':
-            return []
-
-        results = []
-        for item in list(reply):
-            results.append(Result.parse(item))
-
-        return results
-
-
-def read_gui_rpc_password():
-    ''' Read password string from GUI_RPC_PASSWD_FILE file, trim the last CR
-        (if any), and return it
-    '''
-    try:
-        with open(GUI_RPC_PASSWD_FILE, 'r') as f:
-            buf = f.read()
-            if buf.endswith('\n'): return buf[:-1]  # trim last CR
-            else: return buf
-    except IOError:
-        # Permission denied or File not found.
-        pass
diff --git a/collectors/python.d.plugin/python_modules/third_party/filelock.py b/collectors/python.d.plugin/python_modules/third_party/filelock.py
deleted file mode 100644
index 4c981672b..000000000
--- a/collectors/python.d.plugin/python_modules/third_party/filelock.py
+++ /dev/null
@@ -1,451 +0,0 @@
-# This is free and unencumbered software released into the public domain.
-#
-# Anyone is free to copy, modify, publish, use, compile, sell, or
-# distribute this software, either in source code form or as a compiled
-# binary, for any purpose, commercial or non-commercial, and by any
-# means.
-#
-# In jurisdictions that recognize copyright laws, the author or authors
-# of this software dedicate any and all copyright interest in the
-# software to the public domain. We make this dedication for the benefit
-# of the public at large and to the detriment of our heirs and
-# successors. We intend this dedication to be an overt act of
-# relinquishment in perpetuity of all present and future rights to this
-# software under copyright law.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
-# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
-# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
-# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
-# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
-# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
-# OTHER DEALINGS IN THE SOFTWARE.
-#
-# For more information, please refer to <http://unlicense.org>
-
-"""
-A platform independent file lock that supports the with-statement.
-"""
-
-
-# Modules
-# ------------------------------------------------
-import logging
-import os
-import threading
-import time
-try:
-    import warnings
-except ImportError:
-    warnings = None
-
-try:
-    import msvcrt
-except ImportError:
-    msvcrt = None
-
-try:
-    import fcntl
-except ImportError:
-    fcntl = None
-
-
-# Backward compatibility
-# ------------------------------------------------
-try:
-    TimeoutError
-except NameError:
-    TimeoutError = OSError
-
-
-# Data
-# ------------------------------------------------
-__all__ = [
-    "Timeout",
-    "BaseFileLock",
-    "WindowsFileLock",
-    "UnixFileLock",
-    "SoftFileLock",
-    "FileLock"
-]
-
-__version__ = "3.0.12"
-
-
-_logger = None
-def logger():
-    """Returns the logger instance used in this module."""
-    global _logger
-    _logger = _logger or logging.getLogger(__name__)
-    return _logger
-
-
-# Exceptions
-# ------------------------------------------------
-class Timeout(TimeoutError):
-    """
-    Raised when the lock could not be acquired in *timeout*
-    seconds.
-    """
-
-    def __init__(self, lock_file):
-        """
-        """
-        #: The path of the file lock.
-        self.lock_file = lock_file
-        return None
-
-    def __str__(self):
-        temp = "The file lock '{}' could not be acquired."\
-               .format(self.lock_file)
-        return temp
-
-
-# Classes
-# ------------------------------------------------
-
-# This is a helper class which is returned by :meth:`BaseFileLock.acquire`
-# and wraps the lock to make sure __enter__ is not called twice when entering
-# the with statement.
-# If we would simply return *self*, the lock would be acquired again
-# in the *__enter__* method of the BaseFileLock, but not released again
-# automatically.
-#
-# :seealso: issue #37 (memory leak)
-class _Acquire_ReturnProxy(object):
-
-    def __init__(self, lock):
-        self.lock = lock
-        return None
-
-    def __enter__(self):
-        return self.lock
-
-    def __exit__(self, exc_type, exc_value, traceback):
-        self.lock.release()
-        return None
-
-
-class BaseFileLock(object):
-    """
-    Implements the base class of a file lock.
-    """
-
-    def __init__(self, lock_file, timeout = -1):
-        """
-        """
-        # The path to the lock file.
-        self._lock_file = lock_file
-
-        # The file descriptor for the *_lock_file* as it is returned by the
-        # os.open() function.
-        # This file lock is only NOT None, if the object currently holds the
-        # lock.
-        self._lock_file_fd = None
-
-        # The default timeout value.
-        self.timeout = timeout
-
-        # We use this lock primarily for the lock counter.
-        self._thread_lock = threading.Lock()
-
-        # The lock counter is used for implementing the nested locking
-        # mechanism. Whenever the lock is acquired, the counter is increased and
-        # the lock is only released, when this value is 0 again.
-        self._lock_counter = 0
-        return None
-
-    @property
-    def lock_file(self):
-        """
-        The path to the lock file.
-        """
-        return self._lock_file
-
-    @property
-    def timeout(self):
-        """
-        You can set a default timeout for the filelock. It will be used as
-        fallback value in the acquire method, if no timeout value (*None*) is
-        given.
-
-        If you want to disable the timeout, set it to a negative value.
-
-        A timeout of 0 means, that there is exactly one attempt to acquire the
-        file lock.
-
-        .. versionadded:: 2.0.0
-        """
-        return self._timeout
-
-    @timeout.setter
-    def timeout(self, value):
-        """
-        """
-        self._timeout = float(value)
-        return None
-
-    # Platform dependent locking
-    # --------------------------------------------
-
-    def _acquire(self):
-        """
-        Platform dependent. If the file lock could be
-        acquired, self._lock_file_fd holds the file descriptor
-        of the lock file.
-        """
-        raise NotImplementedError()
-
-    def _release(self):
-        """
-        Releases the lock and sets self._lock_file_fd to None.
-        """
-        raise NotImplementedError()
-
-    # Platform independent methods
-    # --------------------------------------------
-
-    @property
-    def is_locked(self):
-        """
-        True, if the object holds the file lock.
-
-        .. versionchanged:: 2.0.0
-
-            This was previously a method and is now a property.
-        """
-        return self._lock_file_fd is not None
-
-    def acquire(self, timeout=None, poll_intervall=0.05):
-        """
-        Acquires the file lock or fails with a :exc:`Timeout` error.
-
-        .. code-block:: python
-
-            # You can use this method in the context manager (recommended)
-            with lock.acquire():
-                pass
-
-            # Or use an equivalent try-finally construct:
-            lock.acquire()
-            try:
-                pass
-            finally:
-                lock.release()
-
-        :arg float timeout:
-            The maximum time waited for the file lock.
-            If ``timeout < 0``, there is no timeout and this method will
-            block until the lock could be acquired.
-            If ``timeout`` is None, the default :attr:`~timeout` is used.
-
-        :arg float poll_intervall:
-            We check once in *poll_intervall* seconds if we can acquire the
-            file lock.
-
-        :raises Timeout:
-            if the lock could not be acquired in *timeout* seconds.
-
-        .. versionchanged:: 2.0.0
-
-            This method returns now a *proxy* object instead of *self*,
-            so that it can be used in a with statement without side effects.
-        """
-        # Use the default timeout, if no timeout is provided.
-        if timeout is None:
-            timeout = self.timeout
-
-        # Increment the number right at the beginning.
-        # We can still undo it, if something fails.
-        with self._thread_lock:
-            self._lock_counter += 1
-
-        lock_id = id(self)
-        lock_filename = self._lock_file
-        start_time = time.time()
-        try:
-            while True:
-                with self._thread_lock:
-                    if not self.is_locked:
-                        logger().debug('Attempting to acquire lock %s on %s', lock_id, lock_filename)
-                        self._acquire()
-
-                if self.is_locked:
-                    logger().info('Lock %s acquired on %s', lock_id, lock_filename)
-                    break
-                elif timeout >= 0 and time.time() - start_time > timeout:
-                    logger().debug('Timeout on acquiring lock %s on %s', lock_id, lock_filename)
-                    raise Timeout(self._lock_file)
-                else:
-                    logger().debug(
-                        'Lock %s not acquired on %s, waiting %s seconds ...',
-                        lock_id, lock_filename, poll_intervall
-                    )
-                    time.sleep(poll_intervall)
-        except:
-            # Something did go wrong, so decrement the counter.
-            with self._thread_lock:
-                self._lock_counter = max(0, self._lock_counter - 1)
-
-            raise
-        return _Acquire_ReturnProxy(lock = self)
-
-    def release(self, force = False):
-        """
-        Releases the file lock.
-
-        Please note, that the lock is only completly released, if the lock
-        counter is 0.
-
-        Also note, that the lock file itself is not automatically deleted.
-
-        :arg bool force:
-            If true, the lock counter is ignored and the lock is released in
-            every case.
-        """
-        with self._thread_lock:
-
-            if self.is_locked:
-                self._lock_counter -= 1
-
-                if self._lock_counter == 0 or force:
-                    lock_id = id(self)
-                    lock_filename = self._lock_file
-
-                    logger().debug('Attempting to release lock %s on %s', lock_id, lock_filename)
-                    self._release()
-                    self._lock_counter = 0
-                    logger().info('Lock %s released on %s', lock_id, lock_filename)
-
-        return None
-
-    def __enter__(self):
-        self.acquire()
-        return self
-
-    def __exit__(self, exc_type, exc_value, traceback):
-        self.release()
-        return None
-
-    def __del__(self):
-        self.release(force = True)
-        return None
-
-
-# Windows locking mechanism
-# ~~~~~~~~~~~~~~~~~~~~~~~~~
-
-class WindowsFileLock(BaseFileLock):
-    """
-    Uses the :func:`msvcrt.locking` function to hard lock the lock file on
-    windows systems.
-    """
-
-    def _acquire(self):
-        open_mode = os.O_RDWR | os.O_CREAT | os.O_TRUNC
-
-        try:
-            fd = os.open(self._lock_file, open_mode)
-        except OSError:
-            pass
-        else:
-            try:
-                msvcrt.locking(fd, msvcrt.LK_NBLCK, 1)
-            except (IOError, OSError):
-                os.close(fd)
-            else:
-                self._lock_file_fd = fd
-        return None
-
-    def _release(self):
-        fd = self._lock_file_fd
-        self._lock_file_fd = None
-        msvcrt.locking(fd, msvcrt.LK_UNLCK, 1)
-        os.close(fd)
-
-        try:
-            os.remove(self._lock_file)
-        # Probably another instance of the application
-        # that acquired the file lock.
-        except OSError:
-            pass
-        return None
-
-# Unix locking mechanism
-# ~~~~~~~~~~~~~~~~~~~~~~
-
-class UnixFileLock(BaseFileLock):
-    """
-    Uses the :func:`fcntl.flock` to hard lock the lock file on unix systems.
-    """
-
-    def _acquire(self):
-        open_mode = os.O_RDWR | os.O_CREAT | os.O_TRUNC
-        fd = os.open(self._lock_file, open_mode)
-
-        try:
-            fcntl.flock(fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
-        except (IOError, OSError):
-            os.close(fd)
-        else:
-            self._lock_file_fd = fd
-        return None
-
-    def _release(self):
-        # Do not remove the lockfile:
-        #
-        #   https://github.com/benediktschmitt/py-filelock/issues/31
-        #   https://stackoverflow.com/questions/17708885/flock-removing-locked-file-without-race-condition
-        fd = self._lock_file_fd
-        self._lock_file_fd = None
-        fcntl.flock(fd, fcntl.LOCK_UN)
-        os.close(fd)
-        return None
-
-# Soft lock
-# ~~~~~~~~~
-
-class SoftFileLock(BaseFileLock):
-    """
-    Simply watches the existence of the lock file.
-    """
-
-    def _acquire(self):
-        open_mode = os.O_WRONLY | os.O_CREAT | os.O_EXCL | os.O_TRUNC
-        try:
-            fd = os.open(self._lock_file, open_mode)
-        except (IOError, OSError):
-            pass
-        else:
-            self._lock_file_fd = fd
-        return None
-
-    def _release(self):
-        os.close(self._lock_file_fd)
-        self._lock_file_fd = None
-
-        try:
-            os.remove(self._lock_file)
-        # The file is already deleted and that's what we want.
-        except OSError:
-            pass
-        return None
-
-
-# Platform filelock
-# ~~~~~~~~~~~~~~~~~
-
-#: Alias for the lock, which should be used for the current platform. On
-#: Windows, this is an alias for :class:`WindowsFileLock`, on Unix for
-#: :class:`UnixFileLock` and otherwise for :class:`SoftFileLock`.
-FileLock = None
-
-if msvcrt:
-    FileLock = WindowsFileLock
-elif fcntl:
-    FileLock = UnixFileLock
-else:
-    FileLock = SoftFileLock
-
-    if warnings is not None:
-        warnings.warn("only soft file lock is available")
diff --git a/collectors/python.d.plugin/python_modules/third_party/lm_sensors.py b/collectors/python.d.plugin/python_modules/third_party/lm_sensors.py
deleted file mode 100644
index f873eac83..000000000
--- a/collectors/python.d.plugin/python_modules/third_party/lm_sensors.py
+++ /dev/null
@@ -1,327 +0,0 @@
-# SPDX-License-Identifier: LGPL-2.1
-"""
-@package sensors.py
-Python Bindings for libsensors3
-
-use the documentation of libsensors for the low level API.
-see example.py for high level API usage.
-
-@author: Pavel Rojtberg (http://www.rojtberg.net)
-@see: https://github.com/paroj/sensors.py
-@copyright: LGPLv2 (same as libsensors) <http://opensource.org/licenses/LGPL-2.1>
-"""
-
-from ctypes import *
-import ctypes.util
-
-_libc = cdll.LoadLibrary(ctypes.util.find_library("c"))
-# see https://github.com/paroj/sensors.py/issues/1
-_libc.free.argtypes = [c_void_p]
-
-_hdl = cdll.LoadLibrary(ctypes.util.find_library("sensors"))
-
-version = c_char_p.in_dll(_hdl, "libsensors_version").value.decode("ascii")
-
-
-class SensorsError(Exception):
-    pass
-
-
-class ErrorWildcards(SensorsError):
-    pass
-
-
-class ErrorNoEntry(SensorsError):
-    pass
-
-
-class ErrorAccessRead(SensorsError, OSError):
-    pass
-
-
-class ErrorKernel(SensorsError, OSError):
-    pass
-
-
-class ErrorDivZero(SensorsError, ZeroDivisionError):
-    pass
-
-
-class ErrorChipName(SensorsError):
-    pass
-
-
-class ErrorBusName(SensorsError):
-    pass
-
-
-class ErrorParse(SensorsError):
-    pass
-
-
-class ErrorAccessWrite(SensorsError, OSError):
-    pass
-
-
-class ErrorIO(SensorsError, IOError):
-    pass
-
-
-class ErrorRecursion(SensorsError):
-    pass
-
-
-_ERR_MAP = {
-    1: ErrorWildcards,
-    2: ErrorNoEntry,
-    3: ErrorAccessRead,
-    4: ErrorKernel,
-    5: ErrorDivZero,
-    6: ErrorChipName,
-    7: ErrorBusName,
-    8: ErrorParse,
-    9: ErrorAccessWrite,
-    10: ErrorIO,
-    11: ErrorRecursion
-}
-
-
-def raise_sensor_error(errno, message=''):
-    raise _ERR_MAP[abs(errno)](message)
-
-
-class bus_id(Structure):
-    _fields_ = [("type", c_short),
-                ("nr", c_short)]
-
-
-class chip_name(Structure):
-    _fields_ = [("prefix", c_char_p),
-                ("bus", bus_id),
-                ("addr", c_int),
-                ("path", c_char_p)]
-
-
-class feature(Structure):
-    _fields_ = [("name", c_char_p),
-                ("number", c_int),
-                ("type", c_int)]
-
-    # sensors_feature_type
-    IN = 0x00
-    FAN = 0x01
-    TEMP = 0x02
-    POWER = 0x03
-    ENERGY = 0x04
-    CURR = 0x05
-    HUMIDITY = 0x06
-    MAX_MAIN = 0x7
-    VID = 0x10
-    INTRUSION = 0x11
-    MAX_OTHER = 0x12
-    BEEP_ENABLE = 0x18
-
-
-class subfeature(Structure):
-    _fields_ = [("name", c_char_p),
-                ("number", c_int),
-                ("type", c_int),
-                ("mapping", c_int),
-                ("flags", c_uint)]
-
-
-_hdl.sensors_get_detected_chips.restype = POINTER(chip_name)
-_hdl.sensors_get_features.restype = POINTER(feature)
-_hdl.sensors_get_all_subfeatures.restype = POINTER(subfeature)
-_hdl.sensors_get_label.restype = c_void_p # return pointer instead of str so we can free it
-_hdl.sensors_get_adapter_name.restype = c_char_p # docs do not say whether to free this or not
-_hdl.sensors_strerror.restype = c_char_p
-
-### RAW API ###
-MODE_R = 1
-MODE_W = 2
-COMPUTE_MAPPING = 4
-
-
-def init(cfg_file=None):
-    file = _libc.fopen(cfg_file.encode("utf-8"), "r") if cfg_file is not None else None
-
-    result = _hdl.sensors_init(file)
-    if result != 0:
-        raise_sensor_error(result, "sensors_init failed")
-
-    if file is not None:
-        _libc.fclose(file)
-
-
-def cleanup():
-    _hdl.sensors_cleanup()
-
-
-def parse_chip_name(orig_name):
-    ret = chip_name()
-    err = _hdl.sensors_parse_chip_name(orig_name.encode("utf-8"), byref(ret))
-
-    if err < 0:
-        raise_sensor_error(err, strerror(err))
-
-    return ret
-
-
-def strerror(errnum):
-    return _hdl.sensors_strerror(errnum).decode("utf-8")
-
-
-def free_chip_name(chip):
-    _hdl.sensors_free_chip_name(byref(chip))
-
-
-def get_detected_chips(match, nr):
-    """
-    @return: (chip, next nr to query)
-    """
-    _nr = c_int(nr)
-
-    if match is not None:
-        match = byref(match)
-
-    chip = _hdl.sensors_get_detected_chips(match, byref(_nr))
-    chip = chip.contents if bool(chip) else None
-    return chip, _nr.value
-
-
-def chip_snprintf_name(chip, buffer_size=200):
-    """
-    @param buffer_size defaults to the size used in the sensors utility
-    """
-    ret = create_string_buffer(buffer_size)
-    err = _hdl.sensors_snprintf_chip_name(ret, buffer_size, byref(chip))
-
-    if err < 0:
-        raise_sensor_error(err, strerror(err))
-
-    return ret.value.decode("utf-8")
-
-
-def do_chip_sets(chip):
-    """
-    @attention this function was not tested
-    """
-    err = _hdl.sensors_do_chip_sets(byref(chip))
-    if err < 0:
-        raise_sensor_error(err, strerror(err))
-
-
-def get_adapter_name(bus):
-    return _hdl.sensors_get_adapter_name(byref(bus)).decode("utf-8")
-
-
-def get_features(chip, nr):
-    """
-    @return: (feature, next nr to query)
-    """
-    _nr = c_int(nr)
-    feature = _hdl.sensors_get_features(byref(chip), byref(_nr))
-    feature = feature.contents if bool(feature) else None
-    return feature, _nr.value
-
-
-def get_label(chip, feature):
-    ptr = _hdl.sensors_get_label(byref(chip), byref(feature))
-    val = cast(ptr, c_char_p).value.decode("utf-8")
-    _libc.free(ptr)
-    return val
-
-
-def get_all_subfeatures(chip, feature, nr):
-    """
-    @return: (subfeature, next nr to query)
-    """
-    _nr = c_int(nr)
-    subfeature = _hdl.sensors_get_all_subfeatures(byref(chip), byref(feature), byref(_nr))
-    subfeature = subfeature.contents if bool(subfeature) else None
-    return subfeature, _nr.value
-
-
-def get_value(chip, subfeature_nr):
-    val = c_double()
-    err = _hdl.sensors_get_value(byref(chip), subfeature_nr, byref(val))
-    if err < 0:
-        raise_sensor_error(err, strerror(err))
-    return val.value
-
-
-def set_value(chip, subfeature_nr, value):
-    """
-    @attention this function was not tested
-    """
-    val = c_double(value)
-    err = _hdl.sensors_set_value(byref(chip), subfeature_nr, byref(val))
-    if err < 0:
-        raise_sensor_error(err, strerror(err))
-
-
-### Convenience API ###
-class ChipIterator:
-    def __init__(self, match=None):
-        self.match = parse_chip_name(match) if match is not None else None
-        self.nr = 0
-
-    def __iter__(self):
-        return self
-
-    def __next__(self):
-        chip, self.nr = get_detected_chips(self.match, self.nr)
-
-        if chip is None:
-            raise StopIteration
-
-        return chip
-
-    def __del__(self):
-        if self.match is not None:
-            free_chip_name(self.match)
-
-    def next(self): # python2 compability
-        return self.__next__()
-
-
-class FeatureIterator:
-    def __init__(self, chip):
-        self.chip = chip
-        self.nr = 0
-
-    def __iter__(self):
-        return self
-
-    def __next__(self):
-        feature, self.nr = get_features(self.chip, self.nr)
-
-        if feature is None:
-            raise StopIteration
-
-        return feature
-
-    def next(self): # python2 compability
-        return self.__next__()
-
-
-class SubFeatureIterator:
-    def __init__(self, chip, feature):
-        self.chip = chip
-        self.feature = feature
-        self.nr = 0
-
-    def __iter__(self):
-        return self
-
-    def __next__(self):
-        subfeature, self.nr = get_all_subfeatures(self.chip, self.feature, self.nr)
-
-        if subfeature is None:
-            raise StopIteration
-
-        return subfeature
-
-    def next(self): # python2 compability
-        return self.__next__()
diff --git a/collectors/python.d.plugin/python_modules/third_party/mcrcon.py b/collectors/python.d.plugin/python_modules/third_party/mcrcon.py
deleted file mode 100644
index a65a304b6..000000000
--- a/collectors/python.d.plugin/python_modules/third_party/mcrcon.py
+++ /dev/null
@@ -1,74 +0,0 @@
-# Minecraft Remote Console module.
-#
-# Copyright (C) 2015 Barnaby Gale
-#
-# SPDX-License-Identifier: MIT
-
-import socket
-import select
-import struct
-import time
-
-
-class MCRconException(Exception):
-    pass
-
-
-class MCRcon(object):
-    socket = None
-
-    def connect(self, host, port, password):
-        if self.socket is not None:
-            raise MCRconException("Already connected")
-        self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
-        self.socket.settimeout(0.9)
-        self.socket.connect((host, port))
-        self.send(3, password)
-
-    def disconnect(self):
-        if self.socket is None:
-            raise MCRconException("Already disconnected")
-        self.socket.close()
-        self.socket = None
-
-    def read(self, length):
-        data = b""
-        while len(data) < length:
-            data += self.socket.recv(length - len(data))
-        return data
-
-    def send(self, out_type, out_data):
-        if self.socket is None:
-            raise MCRconException("Must connect before sending data")
-
-        # Send a request packet
-        out_payload = struct.pack('<ii', 0, out_type) + out_data.encode('utf8') + b'\x00\x00'
-        out_length = struct.pack('<i', len(out_payload))
-        self.socket.send(out_length + out_payload)
-
-        # Read response packets
-        in_data = ""
-        while True:
-            # Read a packet
-            in_length, = struct.unpack('<i', self.read(4))
-            in_payload = self.read(in_length)
-            in_id = struct.unpack('<ii', in_payload[:8])
-            in_data_partial, in_padding = in_payload[8:-2], in_payload[-2:]
-
-            # Sanity checks
-            if in_padding != b'\x00\x00':
-                raise MCRconException("Incorrect padding")
-            if in_id == -1:
-                raise MCRconException("Login failed")
-
-            # Record the response
-            in_data += in_data_partial.decode('utf8')
-
-            # If there's nothing more to receive, return the response
-            if len(select.select([self.socket], [], [], 0)[0]) == 0:
-                return in_data
-
-    def command(self, command):
-        result = self.send(2, command)
-        time.sleep(0.003) # MC-72390 workaround
-        return result
diff --git a/collectors/python.d.plugin/python_modules/third_party/monotonic.py b/collectors/python.d.plugin/python_modules/third_party/monotonic.py
deleted file mode 100644
index 4ebd556c3..000000000
--- a/collectors/python.d.plugin/python_modules/third_party/monotonic.py
+++ /dev/null
@@ -1,201 +0,0 @@
-# -*- coding: utf-8 -*-
-#
-# SPDX-License-Identifier: Apache-2.0
-"""
-  monotonic
-  ~~~~~~~~~
-
-  This module provides a ``monotonic()`` function which returns the
-  value (in fractional seconds) of a clock which never goes backwards.
-
-  On Python 3.3 or newer, ``monotonic`` will be an alias of
-  ``time.monotonic`` from the standard library. On older versions,
-  it will fall back to an equivalent implementation:
-
-  +-------------+----------------------------------------+
-  | Linux, BSD  | ``clock_gettime(3)``                   |
-  +-------------+----------------------------------------+
-  | Windows     | ``GetTickCount`` or ``GetTickCount64`` |
-  +-------------+----------------------------------------+
-  | OS X        | ``mach_absolute_time``                 |
-  +-------------+----------------------------------------+
-
-  If no suitable implementation exists for the current platform,
-  attempting to import this module (or to import from it) will
-  cause a ``RuntimeError`` exception to be raised.
-
-
-  Copyright 2014, 2015, 2016 Ori Livneh <ori@wikimedia.org>
-
-  Licensed under the Apache License, Version 2.0 (the "License");
-  you may not use this file except in compliance with the License.
-  You may obtain a copy of the License at
-
-    http://www.apache.org/licenses/LICENSE-2.0
-
-  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
-
-"""
-import time
-
-
-__all__ = ('monotonic',)
-
-
-try:
-    monotonic = time.monotonic
-except AttributeError:
-    import ctypes
-    import ctypes.util
-    import os
-    import sys
-    import threading
-
-
-    def clock_clock_gettime_c_library():
-        return ctypes.CDLL(ctypes.util.find_library('c'), use_errno=True).clock_gettime
-
-
-    def clock_clock_gettime_rt_library():
-        return ctypes.CDLL(ctypes.util.find_library('rt'), use_errno=True).clock_gettime
-
-
-    def clock_clock_gettime_c_library_synology6():
-        return ctypes.CDLL('/usr/lib/libc.so.6', use_errno=True).clock_gettime
-
-
-    def clock_clock_gettime_rt_library_synology6():
-        return ctypes.CDLL('/usr/lib/librt.so.1', use_errno=True).clock_gettime
-
-
-    def clock_gettime_linux():
-        # see https://github.com/netdata/netdata/issues/7976
-        order = [
-            clock_clock_gettime_c_library,
-            clock_clock_gettime_rt_library,
-            clock_clock_gettime_c_library_synology6,
-            clock_clock_gettime_rt_library_synology6,
-        ]
-
-        for gettime in order:
-            try:
-                return gettime()
-            except (RuntimeError, AttributeError, OSError):
-                continue
-        raise RuntimeError('can not find c and rt libraries')
-
-
-    try:
-        if sys.platform == 'darwin':  # OS X, iOS
-            # See Technical Q&A QA1398 of the Mac Developer Library:
-            #  <https://developer.apple.com/library/mac/qa/qa1398/>
-            libc = ctypes.CDLL('/usr/lib/libc.dylib', use_errno=True)
-
-            class mach_timebase_info_data_t(ctypes.Structure):
-                """System timebase info. Defined in <mach/mach_time.h>."""
-                _fields_ = (('numer', ctypes.c_uint32),
-                            ('denom', ctypes.c_uint32))
-
-            mach_absolute_time = libc.mach_absolute_time
-            mach_absolute_time.restype = ctypes.c_uint64
-
-            timebase = mach_timebase_info_data_t()
-            libc.mach_timebase_info(ctypes.byref(timebase))
-            ticks_per_second = timebase.numer / timebase.denom * 1.0e9
-
-            def monotonic():
-                """Monotonic clock, cannot go backward."""
-                return mach_absolute_time() / ticks_per_second
-
-        elif sys.platform.startswith('win32') or sys.platform.startswith('cygwin'):
-            if sys.platform.startswith('cygwin'):
-                # Note: cygwin implements clock_gettime (CLOCK_MONOTONIC = 4) since
-                # version 1.7.6. Using raw WinAPI for maximum version compatibility.
-
-                # Ugly hack using the wrong calling convention (in 32-bit mode)
-                # because ctypes has no windll under cygwin (and it also seems that
-                # the code letting you select stdcall in _ctypes doesn't exist under
-                # the preprocessor definitions relevant to cygwin).
-                # This is 'safe' because:
-                # 1. The ABI of GetTickCount and GetTickCount64 is identical for
-                #    both calling conventions because they both have no parameters.
-                # 2. libffi masks the problem because after making the call it doesn't
-                #    touch anything through esp and epilogue code restores a correct
-                #    esp from ebp afterwards.
-                try:
-                    kernel32 = ctypes.cdll.kernel32
-                except OSError:  # 'No such file or directory'
-                    kernel32 = ctypes.cdll.LoadLibrary('kernel32.dll')
-            else:
-                kernel32 = ctypes.windll.kernel32
-
-            GetTickCount64 = getattr(kernel32, 'GetTickCount64', None)
-            if GetTickCount64:
-                # Windows Vista / Windows Server 2008 or newer.
-                GetTickCount64.restype = ctypes.c_ulonglong
-
-                def monotonic():
-                    """Monotonic clock, cannot go backward."""
-                    return GetTickCount64() / 1000.0
-
-            else:
-                # Before Windows Vista.
-                GetTickCount = kernel32.GetTickCount
-                GetTickCount.restype = ctypes.c_uint32
-
-                get_tick_count_lock = threading.Lock()
-                get_tick_count_last_sample = 0
-                get_tick_count_wraparounds = 0
-
-                def monotonic():
-                    """Monotonic clock, cannot go backward."""
-                    global get_tick_count_last_sample
-                    global get_tick_count_wraparounds
-
-                    with get_tick_count_lock:
-                        current_sample = GetTickCount()
-                        if current_sample < get_tick_count_last_sample:
-                            get_tick_count_wraparounds += 1
-                        get_tick_count_last_sample = current_sample
-
-                        final_milliseconds = get_tick_count_wraparounds << 32
-                        final_milliseconds += get_tick_count_last_sample
-                        return final_milliseconds / 1000.0
-
-        else:
-            clock_gettime = clock_gettime_linux()
-
-            class timespec(ctypes.Structure):
-                """Time specification, as described in clock_gettime(3)."""
-                _fields_ = (('tv_sec', ctypes.c_long),
-                            ('tv_nsec', ctypes.c_long))
-
-            if sys.platform.startswith('linux'):
-                CLOCK_MONOTONIC = 1
-            elif sys.platform.startswith('freebsd'):
-                CLOCK_MONOTONIC = 4
-            elif sys.platform.startswith('sunos5'):
-                CLOCK_MONOTONIC = 4
-            elif 'bsd' in sys.platform:
-                CLOCK_MONOTONIC = 3
-            elif sys.platform.startswith('aix'):
-                CLOCK_MONOTONIC = ctypes.c_longlong(10)
-
-            def monotonic():
-                """Monotonic clock, cannot go backward."""
-                ts = timespec()
-                if clock_gettime(CLOCK_MONOTONIC, ctypes.pointer(ts)):
-                    errno = ctypes.get_errno()
-                    raise OSError(errno, os.strerror(errno))
-                return ts.tv_sec + ts.tv_nsec / 1.0e9
-
-        # Perform a sanity-check.
-        if monotonic() - monotonic() > 0:
-            raise ValueError('monotonic() is not monotonic!')
-
-    except Exception as e:
-        raise RuntimeError('no suitable implementation for this system: ' + repr(e))
diff --git a/collectors/python.d.plugin/python_modules/third_party/ordereddict.py b/collectors/python.d.plugin/python_modules/third_party/ordereddict.py
deleted file mode 100644
index 589401b8f..000000000
--- a/collectors/python.d.plugin/python_modules/third_party/ordereddict.py
+++ /dev/null
@@ -1,110 +0,0 @@
-# Copyright (c) 2009 Raymond Hettinger
-#
-# SPDX-License-Identifier: MIT
-
-from UserDict import DictMixin
-
-
-class OrderedDict(dict, DictMixin):
-
-    def __init__(self, *args, **kwds):
-        if len(args) > 1:
-            raise TypeError('expected at most 1 arguments, got %d' % len(args))
-        try:
-            self.__end
-        except AttributeError:
-            self.clear()
-        self.update(*args, **kwds)
-
-    def clear(self):
-        self.__end = end = []
-        end += [None, end, end]         # sentinel node for doubly linked list
-        self.__map = {}                 # key --> [key, prev, next]
-        dict.clear(self)
-
-    def __setitem__(self, key, value):
-        if key not in self:
-            end = self.__end
-            curr = end[1]
-            curr[2] = end[1] = self.__map[key] = [key, curr, end]
-        dict.__setitem__(self, key, value)
-
-    def __delitem__(self, key):
-        dict.__delitem__(self, key)
-        key, prev, next = self.__map.pop(key)
-        prev[2] = next
-        next[1] = prev
-
-    def __iter__(self):
-        end = self.__end
-        curr = end[2]
-        while curr is not end:
-            yield curr[0]
-            curr = curr[2]
-
-    def __reversed__(self):
-        end = self.__end
-        curr = end[1]
-        while curr is not end:
-            yield curr[0]
-            curr = curr[1]
-
-    def popitem(self, last=True):
-        if not self:
-            raise KeyError('dictionary is empty')
-        if last:
-            key = reversed(self).next()
-        else:
-            key = iter(self).next()
-        value = self.pop(key)
-        return key, value
-
-    def __reduce__(self):
-        items = [[k, self[k]] for k in self]
-        tmp = self.__map, self.__end
-        del self.__map, self.__end
-        inst_dict = vars(self).copy()
-        self.__map, self.__end = tmp
-        if inst_dict:
-            return self.__class__, (items,), inst_dict
-        return self.__class__, (items,)
-
-    def keys(self):
-        return list(self)
-
-    setdefault = DictMixin.setdefault
-    update = DictMixin.update
-    pop = DictMixin.pop
-    values = DictMixin.values
-    items = DictMixin.items
-    iterkeys = DictMixin.iterkeys
-    itervalues = DictMixin.itervalues
-    iteritems = DictMixin.iteritems
-
-    def __repr__(self):
-        if not self:
-            return '%s()' % (self.__class__.__name__,)
-        return '%s(%r)' % (self.__class__.__name__, self.items())
-
-    def copy(self):
-        return self.__class__(self)
-
-    @classmethod
-    def fromkeys(cls, iterable, value=None):
-        d = cls()
-        for key in iterable:
-            d[key] = value
-        return d
-
-    def __eq__(self, other):
-        if isinstance(other, OrderedDict):
-            if len(self) != len(other):
-                return False
-            for p, q in zip(self.items(), other.items()):
-                if p != q:
-                    return False
-            return True
-        return dict.__eq__(self, other)
-
-    def __ne__(self, other):
-        return not self == other
diff --git a/collectors/python.d.plugin/python_modules/urllib3/__init__.py b/collectors/python.d.plugin/python_modules/urllib3/__init__.py
deleted file mode 100644
index 3add84816..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/__init__.py
+++ /dev/null
@@ -1,98 +0,0 @@
-# SPDX-License-Identifier: MIT
-"""
-urllib3 - Thread-safe connection pooling and re-using.
-"""
-
-from __future__ import absolute_import
-import warnings
-
-from .connectionpool import (
-    HTTPConnectionPool,
-    HTTPSConnectionPool,
-    connection_from_url
-)
-
-from . import exceptions
-from .filepost import encode_multipart_formdata
-from .poolmanager import PoolManager, ProxyManager, proxy_from_url
-from .response import HTTPResponse
-from .util.request import make_headers
-from .util.url import get_host
-from .util.timeout import Timeout
-from .util.retry import Retry
-
-
-# Set default logging handler to avoid "No handler found" warnings.
-import logging
-try:  # Python 2.7+
-    from logging import NullHandler
-except ImportError:
-    class NullHandler(logging.Handler):
-        def emit(self, record):
-            pass
-
-__author__ = 'Andrey Petrov (andrey.petrov@shazow.net)'
-__license__ = 'MIT'
-__version__ = '1.21.1'
-
-__all__ = (
-    'HTTPConnectionPool',
-    'HTTPSConnectionPool',
-    'PoolManager',
-    'ProxyManager',
-    'HTTPResponse',
-    'Retry',
-    'Timeout',
-    'add_stderr_logger',
-    'connection_from_url',
-    'disable_warnings',
-    'encode_multipart_formdata',
-    'get_host',
-    'make_headers',
-    'proxy_from_url',
-)
-
-logging.getLogger(__name__).addHandler(NullHandler())
-
-
-def add_stderr_logger(level=logging.DEBUG):
-    """
-    Helper for quickly adding a StreamHandler to the logger. Useful for
-    debugging.
-
-    Returns the handler after adding it.
-    """
-    # This method needs to be in this __init__.py to get the __name__ correct
-    # even if urllib3 is vendored within another package.
-    logger = logging.getLogger(__name__)
-    handler = logging.StreamHandler()
-    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
-    logger.addHandler(handler)
-    logger.setLevel(level)
-    logger.debug('Added a stderr logging handler to logger: %s', __name__)
-    return handler
-
-
-# ... Clean up.
-del NullHandler
-
-
-# All warning filters *must* be appended unless you're really certain that they
-# shouldn't be: otherwise, it's very hard for users to use most Python
-# mechanisms to silence them.
-# SecurityWarning's always go off by default.
-warnings.simplefilter('always', exceptions.SecurityWarning, append=True)
-# SubjectAltNameWarning's should go off once per host
-warnings.simplefilter('default', exceptions.SubjectAltNameWarning, append=True)
-# InsecurePlatformWarning's don't vary between requests, so we keep it default.
-warnings.simplefilter('default', exceptions.InsecurePlatformWarning,
-                      append=True)
-# SNIMissingWarnings should go off only once.
-warnings.simplefilter('default', exceptions.SNIMissingWarning, append=True)
-
-
-def disable_warnings(category=exceptions.HTTPWarning):
-    """
-    Helper for quickly disabling all urllib3 warnings.
-    """
-    warnings.simplefilter('ignore', category)
diff --git a/collectors/python.d.plugin/python_modules/urllib3/_collections.py b/collectors/python.d.plugin/python_modules/urllib3/_collections.py
deleted file mode 100644
index 2a6b3ec70..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/_collections.py
+++ /dev/null
@@ -1,320 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-
-try:
-    from collections import Mapping, MutableMapping
-except ImportError:
-    from collections.abc import Mapping, MutableMapping
-
-try:
-    from threading import RLock
-except ImportError:  # Platform-specific: No threads available
-    class RLock:
-        def __enter__(self):
-            pass
-
-        def __exit__(self, exc_type, exc_value, traceback):
-            pass
-
-
-try:  # Python 2.7+
-    from collections import OrderedDict
-except ImportError:
-    from .packages.ordered_dict import OrderedDict
-from .packages.six import iterkeys, itervalues, PY3
-
-
-__all__ = ['RecentlyUsedContainer', 'HTTPHeaderDict']
-
-
-_Null = object()
-
-
-class RecentlyUsedContainer(MutableMapping):
-    """
-    Provides a thread-safe dict-like container which maintains up to
-    ``maxsize`` keys while throwing away the least-recently-used keys beyond
-    ``maxsize``.
-
-    :param maxsize:
-        Maximum number of recent elements to retain.
-
-    :param dispose_func:
-        Every time an item is evicted from the container,
-        ``dispose_func(value)`` is called.  Callback which will get called
-    """
-
-    ContainerCls = OrderedDict
-
-    def __init__(self, maxsize=10, dispose_func=None):
-        self._maxsize = maxsize
-        self.dispose_func = dispose_func
-
-        self._container = self.ContainerCls()
-        self.lock = RLock()
-
-    def __getitem__(self, key):
-        # Re-insert the item, moving it to the end of the eviction line.
-        with self.lock:
-            item = self._container.pop(key)
-            self._container[key] = item
-            return item
-
-    def __setitem__(self, key, value):
-        evicted_value = _Null
-        with self.lock:
-            # Possibly evict the existing value of 'key'
-            evicted_value = self._container.get(key, _Null)
-            self._container[key] = value
-
-            # If we didn't evict an existing value, we might have to evict the
-            # least recently used item from the beginning of the container.
-            if len(self._container) > self._maxsize:
-                _key, evicted_value = self._container.popitem(last=False)
-
-        if self.dispose_func and evicted_value is not _Null:
-            self.dispose_func(evicted_value)
-
-    def __delitem__(self, key):
-        with self.lock:
-            value = self._container.pop(key)
-
-        if self.dispose_func:
-            self.dispose_func(value)
-
-    def __len__(self):
-        with self.lock:
-            return len(self._container)
-
-    def __iter__(self):
-        raise NotImplementedError('Iteration over this class is unlikely to be threadsafe.')
-
-    def clear(self):
-        with self.lock:
-            # Copy pointers to all values, then wipe the mapping
-            values = list(itervalues(self._container))
-            self._container.clear()
-
-        if self.dispose_func:
-            for value in values:
-                self.dispose_func(value)
-
-    def keys(self):
-        with self.lock:
-            return list(iterkeys(self._container))
-
-
-class HTTPHeaderDict(MutableMapping):
-    """
-    :param headers:
-        An iterable of field-value pairs. Must not contain multiple field names
-        when compared case-insensitively.
-
-    :param kwargs:
-        Additional field-value pairs to pass in to ``dict.update``.
-
-    A ``dict`` like container for storing HTTP Headers.
-
-    Field names are stored and compared case-insensitively in compliance with
-    RFC 7230. Iteration provides the first case-sensitive key seen for each
-    case-insensitive pair.
-
-    Using ``__setitem__`` syntax overwrites fields that compare equal
-    case-insensitively in order to maintain ``dict``'s api. For fields that
-    compare equal, instead create a new ``HTTPHeaderDict`` and use ``.add``
-    in a loop.
-
-    If multiple fields that are equal case-insensitively are passed to the
-    constructor or ``.update``, the behavior is undefined and some will be
-    lost.
-
-    >>> headers = HTTPHeaderDict()
-    >>> headers.add('Set-Cookie', 'foo=bar')
-    >>> headers.add('set-cookie', 'baz=quxx')
-    >>> headers['content-length'] = '7'
-    >>> headers['SET-cookie']
-    'foo=bar, baz=quxx'
-    >>> headers['Content-Length']
-    '7'
-    """
-
-    def __init__(self, headers=None, **kwargs):
-        super(HTTPHeaderDict, self).__init__()
-        self._container = OrderedDict()
-        if headers is not None:
-            if isinstance(headers, HTTPHeaderDict):
-                self._copy_from(headers)
-            else:
-                self.extend(headers)
-        if kwargs:
-            self.extend(kwargs)
-
-    def __setitem__(self, key, val):
-        self._container[key.lower()] = [key, val]
-        return self._container[key.lower()]
-
-    def __getitem__(self, key):
-        val = self._container[key.lower()]
-        return ', '.join(val[1:])
-
-    def __delitem__(self, key):
-        del self._container[key.lower()]
-
-    def __contains__(self, key):
-        return key.lower() in self._container
-
-    def __eq__(self, other):
-        if not isinstance(other, Mapping) and not hasattr(other, 'keys'):
-            return False
-        if not isinstance(other, type(self)):
-            other = type(self)(other)
-        return (dict((k.lower(), v) for k, v in self.itermerged()) ==
-                dict((k.lower(), v) for k, v in other.itermerged()))
-
-    def __ne__(self, other):
-        return not self.__eq__(other)
-
-    if not PY3:  # Python 2
-        iterkeys = MutableMapping.iterkeys
-        itervalues = MutableMapping.itervalues
-
-    __marker = object()
-
-    def __len__(self):
-        return len(self._container)
-
-    def __iter__(self):
-        # Only provide the originally cased names
-        for vals in self._container.values():
-            yield vals[0]
-
-    def pop(self, key, default=__marker):
-        '''D.pop(k[,d]) -> v, remove specified key and return the corresponding value.
-          If key is not found, d is returned if given, otherwise KeyError is raised.
-        '''
-        # Using the MutableMapping function directly fails due to the private marker.
-        # Using ordinary dict.pop would expose the internal structures.
-        # So let's reinvent the wheel.
-        try:
-            value = self[key]
-        except KeyError:
-            if default is self.__marker:
-                raise
-            return default
-        else:
-            del self[key]
-            return value
-
-    def discard(self, key):
-        try:
-            del self[key]
-        except KeyError:
-            pass
-
-    def add(self, key, val):
-        """Adds a (name, value) pair, doesn't overwrite the value if it already
-        exists.
-
-        >>> headers = HTTPHeaderDict(foo='bar')
-        >>> headers.add('Foo', 'baz')
-        >>> headers['foo']
-        'bar, baz'
-        """
-        key_lower = key.lower()
-        new_vals = [key, val]
-        # Keep the common case aka no item present as fast as possible
-        vals = self._container.setdefault(key_lower, new_vals)
-        if new_vals is not vals:
-            vals.append(val)
-
-    def extend(self, *args, **kwargs):
-        """Generic import function for any type of header-like object.
-        Adapted version of MutableMapping.update in order to insert items
-        with self.add instead of self.__setitem__
-        """
-        if len(args) > 1:
-            raise TypeError("extend() takes at most 1 positional "
-                            "arguments ({0} given)".format(len(args)))
-        other = args[0] if len(args) >= 1 else ()
-
-        if isinstance(other, HTTPHeaderDict):
-            for key, val in other.iteritems():
-                self.add(key, val)
-        elif isinstance(other, Mapping):
-            for key in other:
-                self.add(key, other[key])
-        elif hasattr(other, "keys"):
-            for key in other.keys():
-                self.add(key, other[key])
-        else:
-            for key, value in other:
-                self.add(key, value)
-
-        for key, value in kwargs.items():
-            self.add(key, value)
-
-    def getlist(self, key):
-        """Returns a list of all the values for the named field. Returns an
-        empty list if the key doesn't exist."""
-        try:
-            vals = self._container[key.lower()]
-        except KeyError:
-            return []
-        else:
-            return vals[1:]
-
-    # Backwards compatibility for httplib
-    getheaders = getlist
-    getallmatchingheaders = getlist
-    iget = getlist
-
-    def __repr__(self):
-        return "%s(%s)" % (type(self).__name__, dict(self.itermerged()))
-
-    def _copy_from(self, other):
-        for key in other:
-            val = other.getlist(key)
-            if isinstance(val, list):
-                # Don't need to convert tuples
-                val = list(val)
-            self._container[key.lower()] = [key] + val
-
-    def copy(self):
-        clone = type(self)()
-        clone._copy_from(self)
-        return clone
-
-    def iteritems(self):
-        """Iterate over all header lines, including duplicate ones."""
-        for key in self:
-            vals = self._container[key.lower()]
-            for val in vals[1:]:
-                yield vals[0], val
-
-    def itermerged(self):
-        """Iterate over all headers, merging duplicate ones together."""
-        for key in self:
-            val = self._container[key.lower()]
-            yield val[0], ', '.join(val[1:])
-
-    def items(self):
-        return list(self.iteritems())
-
-    @classmethod
-    def from_httplib(cls, message):  # Python 2
-        """Read headers from a Python 2 httplib message object."""
-        # python2.7 does not expose a proper API for exporting multiheaders
-        # efficiently. This function re-reads raw lines from the message
-        # object and extracts the multiheaders properly.
-        headers = []
-
-        for line in message.headers:
-            if line.startswith((' ', '\t')):
-                key, value = headers[-1]
-                headers[-1] = (key, value + '\r\n' + line.rstrip())
-                continue
-
-            key, value = line.split(':', 1)
-            headers.append((key, value.strip()))
-
-        return cls(headers)
diff --git a/collectors/python.d.plugin/python_modules/urllib3/connection.py b/collectors/python.d.plugin/python_modules/urllib3/connection.py
deleted file mode 100644
index f757493c7..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/connection.py
+++ /dev/null
@@ -1,374 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-import datetime
-import logging
-import os
-import sys
-import socket
-from socket import error as SocketError, timeout as SocketTimeout
-import warnings
-from .packages import six
-from .packages.six.moves.http_client import HTTPConnection as _HTTPConnection
-from .packages.six.moves.http_client import HTTPException  # noqa: F401
-
-try:  # Compiled with SSL?
-    import ssl
-    BaseSSLError = ssl.SSLError
-except (ImportError, AttributeError):  # Platform-specific: No SSL.
-    ssl = None
-
-    class BaseSSLError(BaseException):
-        pass
-
-
-try:  # Python 3:
-    # Not a no-op, we're adding this to the namespace so it can be imported.
-    ConnectionError = ConnectionError
-except NameError:  # Python 2:
-    class ConnectionError(Exception):
-        pass
-
-
-from .exceptions import (
-    NewConnectionError,
-    ConnectTimeoutError,
-    SubjectAltNameWarning,
-    SystemTimeWarning,
-)
-from .packages.ssl_match_hostname import match_hostname, CertificateError
-
-from .util.ssl_ import (
-    resolve_cert_reqs,
-    resolve_ssl_version,
-    assert_fingerprint,
-    create_urllib3_context,
-    ssl_wrap_socket
-)
-
-
-from .util import connection
-
-from ._collections import HTTPHeaderDict
-
-log = logging.getLogger(__name__)
-
-port_by_scheme = {
-    'http': 80,
-    'https': 443,
-}
-
-# When updating RECENT_DATE, move it to
-# within two years of the current date, and no
-# earlier than 6 months ago.
-RECENT_DATE = datetime.date(2016, 1, 1)
-
-
-class DummyConnection(object):
-    """Used to detect a failed ConnectionCls import."""
-    pass
-
-
-class HTTPConnection(_HTTPConnection, object):
-    """
-    Based on httplib.HTTPConnection but provides an extra constructor
-    backwards-compatibility layer between older and newer Pythons.
-
-    Additional keyword parameters are used to configure attributes of the connection.
-    Accepted parameters include:
-
-      - ``strict``: See the documentation on :class:`urllib3.connectionpool.HTTPConnectionPool`
-      - ``source_address``: Set the source address for the current connection.
-
-        .. note:: This is ignored for Python 2.6. It is only applied for 2.7 and 3.x
-
-      - ``socket_options``: Set specific options on the underlying socket. If not specified, then
-        defaults are loaded from ``HTTPConnection.default_socket_options`` which includes disabling
-        Nagle's algorithm (sets TCP_NODELAY to 1) unless the connection is behind a proxy.
-
-        For example, if you wish to enable TCP Keep Alive in addition to the defaults,
-        you might pass::
-
-            HTTPConnection.default_socket_options + [
-                (socket.SOL_SOCKET, socket.SO_KEEPALIVE, 1),
-            ]
-
-        Or you may want to disable the defaults by passing an empty list (e.g., ``[]``).
-    """
-
-    default_port = port_by_scheme['http']
-
-    #: Disable Nagle's algorithm by default.
-    #: ``[(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)]``
-    default_socket_options = [(socket.IPPROTO_TCP, socket.TCP_NODELAY, 1)]
-
-    #: Whether this connection verifies the host's certificate.
-    is_verified = False
-
-    def __init__(self, *args, **kw):
-        if six.PY3:  # Python 3
-            kw.pop('strict', None)
-
-        # Pre-set source_address in case we have an older Python like 2.6.
-        self.source_address = kw.get('source_address')
-
-        if sys.version_info < (2, 7):  # Python 2.6
-            # _HTTPConnection on Python 2.6 will balk at this keyword arg, but
-            # not newer versions. We can still use it when creating a
-            # connection though, so we pop it *after* we have saved it as
-            # self.source_address.
-            kw.pop('source_address', None)
-
-        #: The socket options provided by the user. If no options are
-        #: provided, we use the default options.
-        self.socket_options = kw.pop('socket_options', self.default_socket_options)
-
-        # Superclass also sets self.source_address in Python 2.7+.
-        _HTTPConnection.__init__(self, *args, **kw)
-
-    def _new_conn(self):
-        """ Establish a socket connection and set nodelay settings on it.
-
-        :return: New socket connection.
-        """
-        extra_kw = {}
-        if self.source_address:
-            extra_kw['source_address'] = self.source_address
-
-        if self.socket_options:
-            extra_kw['socket_options'] = self.socket_options
-
-        try:
-            conn = connection.create_connection(
-                (self.host, self.port), self.timeout, **extra_kw)
-
-        except SocketTimeout as e:
-            raise ConnectTimeoutError(
-                self, "Connection to %s timed out. (connect timeout=%s)" %
-                (self.host, self.timeout))
-
-        except SocketError as e:
-            raise NewConnectionError(
-                self, "Failed to establish a new connection: %s" % e)
-
-        return conn
-
-    def _prepare_conn(self, conn):
-        self.sock = conn
-        # the _tunnel_host attribute was added in python 2.6.3 (via
-        # http://hg.python.org/cpython/rev/0f57b30a152f) so pythons 2.6(0-2) do
-        # not have them.
-        if getattr(self, '_tunnel_host', None):
-            # TODO: Fix tunnel so it doesn't depend on self.sock state.
-            self._tunnel()
-            # Mark this connection as not reusable
-            self.auto_open = 0
-
-    def connect(self):
-        conn = self._new_conn()
-        self._prepare_conn(conn)
-
-    def request_chunked(self, method, url, body=None, headers=None):
-        """
-        Alternative to the common request method, which sends the
-        body with chunked encoding and not as one block
-        """
-        headers = HTTPHeaderDict(headers if headers is not None else {})
-        skip_accept_encoding = 'accept-encoding' in headers
-        skip_host = 'host' in headers
-        self.putrequest(
-            method,
-            url,
-            skip_accept_encoding=skip_accept_encoding,
-            skip_host=skip_host
-        )
-        for header, value in headers.items():
-            self.putheader(header, value)
-        if 'transfer-encoding' not in headers:
-            self.putheader('Transfer-Encoding', 'chunked')
-        self.endheaders()
-
-        if body is not None:
-            stringish_types = six.string_types + (six.binary_type,)
-            if isinstance(body, stringish_types):
-                body = (body,)
-            for chunk in body:
-                if not chunk:
-                    continue
-                if not isinstance(chunk, six.binary_type):
-                    chunk = chunk.encode('utf8')
-                len_str = hex(len(chunk))[2:]
-                self.send(len_str.encode('utf-8'))
-                self.send(b'\r\n')
-                self.send(chunk)
-                self.send(b'\r\n')
-
-        # After the if clause, to always have a closed body
-        self.send(b'0\r\n\r\n')
-
-
-class HTTPSConnection(HTTPConnection):
-    default_port = port_by_scheme['https']
-
-    ssl_version = None
-
-    def __init__(self, host, port=None, key_file=None, cert_file=None,
-                 strict=None, timeout=socket._GLOBAL_DEFAULT_TIMEOUT,
-                 ssl_context=None, **kw):
-
-        HTTPConnection.__init__(self, host, port, strict=strict,
-                                timeout=timeout, **kw)
-
-        self.key_file = key_file
-        self.cert_file = cert_file
-        self.ssl_context = ssl_context
-
-        # Required property for Google AppEngine 1.9.0 which otherwise causes
-        # HTTPS requests to go out as HTTP. (See Issue #356)
-        self._protocol = 'https'
-
-    def connect(self):
-        conn = self._new_conn()
-        self._prepare_conn(conn)
-
-        if self.ssl_context is None:
-            self.ssl_context = create_urllib3_context(
-                ssl_version=resolve_ssl_version(None),
-                cert_reqs=resolve_cert_reqs(None),
-            )
-
-        self.sock = ssl_wrap_socket(
-            sock=conn,
-            keyfile=self.key_file,
-            certfile=self.cert_file,
-            ssl_context=self.ssl_context,
-        )
-
-
-class VerifiedHTTPSConnection(HTTPSConnection):
-    """
-    Based on httplib.HTTPSConnection but wraps the socket with
-    SSL certification.
-    """
-    cert_reqs = None
-    ca_certs = None
-    ca_cert_dir = None
-    ssl_version = None
-    assert_fingerprint = None
-
-    def set_cert(self, key_file=None, cert_file=None,
-                 cert_reqs=None, ca_certs=None,
-                 assert_hostname=None, assert_fingerprint=None,
-                 ca_cert_dir=None):
-        """
-        This method should only be called once, before the connection is used.
-        """
-        # If cert_reqs is not provided, we can try to guess. If the user gave
-        # us a cert database, we assume they want to use it: otherwise, if
-        # they gave us an SSL Context object we should use whatever is set for
-        # it.
-        if cert_reqs is None:
-            if ca_certs or ca_cert_dir:
-                cert_reqs = 'CERT_REQUIRED'
-            elif self.ssl_context is not None:
-                cert_reqs = self.ssl_context.verify_mode
-
-        self.key_file = key_file
-        self.cert_file = cert_file
-        self.cert_reqs = cert_reqs
-        self.assert_hostname = assert_hostname
-        self.assert_fingerprint = assert_fingerprint
-        self.ca_certs = ca_certs and os.path.expanduser(ca_certs)
-        self.ca_cert_dir = ca_cert_dir and os.path.expanduser(ca_cert_dir)
-
-    def connect(self):
-        # Add certificate verification
-        conn = self._new_conn()
-
-        hostname = self.host
-        if getattr(self, '_tunnel_host', None):
-            # _tunnel_host was added in Python 2.6.3
-            # (See: http://hg.python.org/cpython/rev/0f57b30a152f)
-
-            self.sock = conn
-            # Calls self._set_hostport(), so self.host is
-            # self._tunnel_host below.
-            self._tunnel()
-            # Mark this connection as not reusable
-            self.auto_open = 0
-
-            # Override the host with the one we're requesting data from.
-            hostname = self._tunnel_host
-
-        is_time_off = datetime.date.today() < RECENT_DATE
-        if is_time_off:
-            warnings.warn((
-                'System time is way off (before {0}). This will probably '
-                'lead to SSL verification errors').format(RECENT_DATE),
-                SystemTimeWarning
-            )
-
-        # Wrap socket using verification with the root certs in
-        # trusted_root_certs
-        if self.ssl_context is None:
-            self.ssl_context = create_urllib3_context(
-                ssl_version=resolve_ssl_version(self.ssl_version),
-                cert_reqs=resolve_cert_reqs(self.cert_reqs),
-            )
-
-        context = self.ssl_context
-        context.verify_mode = resolve_cert_reqs(self.cert_reqs)
-        self.sock = ssl_wrap_socket(
-            sock=conn,
-            keyfile=self.key_file,
-            certfile=self.cert_file,
-            ca_certs=self.ca_certs,
-            ca_cert_dir=self.ca_cert_dir,
-            server_hostname=hostname,
-            ssl_context=context)
-
-        if self.assert_fingerprint:
-            assert_fingerprint(self.sock.getpeercert(binary_form=True),
-                               self.assert_fingerprint)
-        elif context.verify_mode != ssl.CERT_NONE \
-                and not getattr(context, 'check_hostname', False) \
-                and self.assert_hostname is not False:
-            # While urllib3 attempts to always turn off hostname matching from
-            # the TLS library, this cannot always be done. So we check whether
-            # the TLS Library still thinks it's matching hostnames.
-            cert = self.sock.getpeercert()
-            if not cert.get('subjectAltName', ()):
-                warnings.warn((
-                    'Certificate for {0} has no `subjectAltName`, falling back to check for a '
-                    '`commonName` for now. This feature is being removed by major browsers and '
-                    'deprecated by RFC 2818. (See https://github.com/shazow/urllib3/issues/497 '
-                    'for details.)'.format(hostname)),
-                    SubjectAltNameWarning
-                )
-            _match_hostname(cert, self.assert_hostname or hostname)
-
-        self.is_verified = (
-            context.verify_mode == ssl.CERT_REQUIRED or
-            self.assert_fingerprint is not None
-        )
-
-
-def _match_hostname(cert, asserted_hostname):
-    try:
-        match_hostname(cert, asserted_hostname)
-    except CertificateError as e:
-        log.error(
-            'Certificate did not match expected hostname: %s. '
-            'Certificate: %s', asserted_hostname, cert
-        )
-        # Add cert to exception and reraise so client code can inspect
-        # the cert when catching the exception, if they want to
-        e._peer_cert = cert
-        raise
-
-
-if ssl:
-    # Make a copy for testing.
-    UnverifiedHTTPSConnection = HTTPSConnection
-    HTTPSConnection = VerifiedHTTPSConnection
-else:
-    HTTPSConnection = DummyConnection
diff --git a/collectors/python.d.plugin/python_modules/urllib3/connectionpool.py b/collectors/python.d.plugin/python_modules/urllib3/connectionpool.py
deleted file mode 100644
index 90e4c86a5..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/connectionpool.py
+++ /dev/null
@@ -1,900 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-import errno
-import logging
-import sys
-import warnings
-
-from socket import error as SocketError, timeout as SocketTimeout
-import socket
-
-
-from .exceptions import (
-    ClosedPoolError,
-    ProtocolError,
-    EmptyPoolError,
-    HeaderParsingError,
-    HostChangedError,
-    LocationValueError,
-    MaxRetryError,
-    ProxyError,
-    ReadTimeoutError,
-    SSLError,
-    TimeoutError,
-    InsecureRequestWarning,
-    NewConnectionError,
-)
-from .packages.ssl_match_hostname import CertificateError
-from .packages import six
-from .packages.six.moves import queue
-from .connection import (
-    port_by_scheme,
-    DummyConnection,
-    HTTPConnection, HTTPSConnection, VerifiedHTTPSConnection,
-    HTTPException, BaseSSLError,
-)
-from .request import RequestMethods
-from .response import HTTPResponse
-
-from .util.connection import is_connection_dropped
-from .util.request import set_file_position
-from .util.response import assert_header_parsing
-from .util.retry import Retry
-from .util.timeout import Timeout
-from .util.url import get_host, Url
-
-
-if six.PY2:
-    # Queue is imported for side effects on MS Windows
-    import Queue as _unused_module_Queue  # noqa: F401
-
-xrange = six.moves.xrange
-
-log = logging.getLogger(__name__)
-
-_Default = object()
-
-
-# Pool objects
-class ConnectionPool(object):
-    """
-    Base class for all connection pools, such as
-    :class:`.HTTPConnectionPool` and :class:`.HTTPSConnectionPool`.
-    """
-
-    scheme = None
-    QueueCls = queue.LifoQueue
-
-    def __init__(self, host, port=None):
-        if not host:
-            raise LocationValueError("No host specified.")
-
-        self.host = _ipv6_host(host).lower()
-        self.port = port
-
-    def __str__(self):
-        return '%s(host=%r, port=%r)' % (type(self).__name__,
-                                         self.host, self.port)
-
-    def __enter__(self):
-        return self
-
-    def __exit__(self, exc_type, exc_val, exc_tb):
-        self.close()
-        # Return False to re-raise any potential exceptions
-        return False
-
-    def close(self):
-        """
-        Close all pooled connections and disable the pool.
-        """
-        pass
-
-
-# This is taken from http://hg.python.org/cpython/file/7aaba721ebc0/Lib/socket.py#l252
-_blocking_errnos = set([errno.EAGAIN, errno.EWOULDBLOCK])
-
-
-class HTTPConnectionPool(ConnectionPool, RequestMethods):
-    """
-    Thread-safe connection pool for one host.
-
-    :param host:
-        Host used for this HTTP Connection (e.g. "localhost"), passed into
-        :class:`httplib.HTTPConnection`.
-
-    :param port:
-        Port used for this HTTP Connection (None is equivalent to 80), passed
-        into :class:`httplib.HTTPConnection`.
-
-    :param strict:
-        Causes BadStatusLine to be raised if the status line can't be parsed
-        as a valid HTTP/1.0 or 1.1 status line, passed into
-        :class:`httplib.HTTPConnection`.
-
-        .. note::
-           Only works in Python 2. This parameter is ignored in Python 3.
-
-    :param timeout:
-        Socket timeout in seconds for each individual connection. This can
-        be a float or integer, which sets the timeout for the HTTP request,
-        or an instance of :class:`urllib3.util.Timeout` which gives you more
-        fine-grained control over request timeouts. After the constructor has
-        been parsed, this is always a `urllib3.util.Timeout` object.
-
-    :param maxsize:
-        Number of connections to save that can be reused. More than 1 is useful
-        in multithreaded situations. If ``block`` is set to False, more
-        connections will be created but they will not be saved once they've
-        been used.
-
-    :param block:
-        If set to True, no more than ``maxsize`` connections will be used at
-        a time. When no free connections are available, the call will block
-        until a connection has been released. This is a useful side effect for
-        particular multithreaded situations where one does not want to use more
-        than maxsize connections per host to prevent flooding.
-
-    :param headers:
-        Headers to include with all requests, unless other headers are given
-        explicitly.
-
-    :param retries:
-        Retry configuration to use by default with requests in this pool.
-
-    :param _proxy:
-        Parsed proxy URL, should not be used directly, instead, see
-        :class:`urllib3.connectionpool.ProxyManager`"
-
-    :param _proxy_headers:
-        A dictionary with proxy headers, should not be used directly,
-        instead, see :class:`urllib3.connectionpool.ProxyManager`"
-
-    :param \\**conn_kw:
-        Additional parameters are used to create fresh :class:`urllib3.connection.HTTPConnection`,
-        :class:`urllib3.connection.HTTPSConnection` instances.
-    """
-
-    scheme = 'http'
-    ConnectionCls = HTTPConnection
-    ResponseCls = HTTPResponse
-
-    def __init__(self, host, port=None, strict=False,
-                 timeout=Timeout.DEFAULT_TIMEOUT, maxsize=1, block=False,
-                 headers=None, retries=None,
-                 _proxy=None, _proxy_headers=None,
-                 **conn_kw):
-        ConnectionPool.__init__(self, host, port)
-        RequestMethods.__init__(self, headers)
-
-        self.strict = strict
-
-        if not isinstance(timeout, Timeout):
-            timeout = Timeout.from_float(timeout)
-
-        if retries is None:
-            retries = Retry.DEFAULT
-
-        self.timeout = timeout
-        self.retries = retries
-
-        self.pool = self.QueueCls(maxsize)
-        self.block = block
-
-        self.proxy = _proxy
-        self.proxy_headers = _proxy_headers or {}
-
-        # Fill the queue up so that doing get() on it will block properly
-        for _ in xrange(maxsize):
-            self.pool.put(None)
-
-        # These are mostly for testing and debugging purposes.
-        self.num_connections = 0
-        self.num_requests = 0
-        self.conn_kw = conn_kw
-
-        if self.proxy:
-            # Enable Nagle's algorithm for proxies, to avoid packet fragmentation.
-            # We cannot know if the user has added default socket options, so we cannot replace the
-            # list.
-            self.conn_kw.setdefault('socket_options', [])
-
-    def _new_conn(self):
-        """
-        Return a fresh :class:`HTTPConnection`.
-        """
-        self.num_connections += 1
-        log.debug("Starting new HTTP connection (%d): %s",
-                  self.num_connections, self.host)
-
-        conn = self.ConnectionCls(host=self.host, port=self.port,
-                                  timeout=self.timeout.connect_timeout,
-                                  strict=self.strict, **self.conn_kw)
-        return conn
-
-    def _get_conn(self, timeout=None):
-        """
-        Get a connection. Will return a pooled connection if one is available.
-
-        If no connections are available and :prop:`.block` is ``False``, then a
-        fresh connection is returned.
-
-        :param timeout:
-            Seconds to wait before giving up and raising
-            :class:`urllib3.exceptions.EmptyPoolError` if the pool is empty and
-            :prop:`.block` is ``True``.
-        """
-        conn = None
-        try:
-            conn = self.pool.get(block=self.block, timeout=timeout)
-
-        except AttributeError:  # self.pool is None
-            raise ClosedPoolError(self, "Pool is closed.")
-
-        except queue.Empty:
-            if self.block:
-                raise EmptyPoolError(self,
-                                     "Pool reached maximum size and no more "
-                                     "connections are allowed.")
-            pass  # Oh well, we'll create a new connection then
-
-        # If this is a persistent connection, check if it got disconnected
-        if conn and is_connection_dropped(conn):
-            log.debug("Resetting dropped connection: %s", self.host)
-            conn.close()
-            if getattr(conn, 'auto_open', 1) == 0:
-                # This is a proxied connection that has been mutated by
-                # httplib._tunnel() and cannot be reused (since it would
-                # attempt to bypass the proxy)
-                conn = None
-
-        return conn or self._new_conn()
-
-    def _put_conn(self, conn):
-        """
-        Put a connection back into the pool.
-
-        :param conn:
-            Connection object for the current host and port as returned by
-            :meth:`._new_conn` or :meth:`._get_conn`.
-
-        If the pool is already full, the connection is closed and discarded
-        because we exceeded maxsize. If connections are discarded frequently,
-        then maxsize should be increased.
-
-        If the pool is closed, then the connection will be closed and discarded.
-        """
-        try:
-            self.pool.put(conn, block=False)
-            return  # Everything is dandy, done.
-        except AttributeError:
-            # self.pool is None.
-            pass
-        except queue.Full:
-            # This should never happen if self.block == True
-            log.warning(
-                "Connection pool is full, discarding connection: %s",
-                self.host)
-
-        # Connection never got put back into the pool, close it.
-        if conn:
-            conn.close()
-
-    def _validate_conn(self, conn):
-        """
-        Called right before a request is made, after the socket is created.
-        """
-        pass
-
-    def _prepare_proxy(self, conn):
-        # Nothing to do for HTTP connections.
-        pass
-
-    def _get_timeout(self, timeout):
-        """ Helper that always returns a :class:`urllib3.util.Timeout` """
-        if timeout is _Default:
-            return self.timeout.clone()
-
-        if isinstance(timeout, Timeout):
-            return timeout.clone()
-        else:
-            # User passed us an int/float. This is for backwards compatibility,
-            # can be removed later
-            return Timeout.from_float(timeout)
-
-    def _raise_timeout(self, err, url, timeout_value):
-        """Is the error actually a timeout? Will raise a ReadTimeout or pass"""
-
-        if isinstance(err, SocketTimeout):
-            raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
-
-        # See the above comment about EAGAIN in Python 3. In Python 2 we have
-        # to specifically catch it and throw the timeout error
-        if hasattr(err, 'errno') and err.errno in _blocking_errnos:
-            raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
-
-        # Catch possible read timeouts thrown as SSL errors. If not the
-        # case, rethrow the original. We need to do this because of:
-        # http://bugs.python.org/issue10272
-        if 'timed out' in str(err) or 'did not complete (read)' in str(err):  # Python 2.6
-            raise ReadTimeoutError(self, url, "Read timed out. (read timeout=%s)" % timeout_value)
-
-    def _make_request(self, conn, method, url, timeout=_Default, chunked=False,
-                      **httplib_request_kw):
-        """
-        Perform a request on a given urllib connection object taken from our
-        pool.
-
-        :param conn:
-            a connection from one of our connection pools
-
-        :param timeout:
-            Socket timeout in seconds for the request. This can be a
-            float or integer, which will set the same timeout value for
-            the socket connect and the socket read, or an instance of
-            :class:`urllib3.util.Timeout`, which gives you more fine-grained
-            control over your timeouts.
-        """
-        self.num_requests += 1
-
-        timeout_obj = self._get_timeout(timeout)
-        timeout_obj.start_connect()
-        conn.timeout = timeout_obj.connect_timeout
-
-        # Trigger any extra validation we need to do.
-        try:
-            self._validate_conn(conn)
-        except (SocketTimeout, BaseSSLError) as e:
-            # Py2 raises this as a BaseSSLError, Py3 raises it as socket timeout.
-            self._raise_timeout(err=e, url=url, timeout_value=conn.timeout)
-            raise
-
-        # conn.request() calls httplib.*.request, not the method in
-        # urllib3.request. It also calls makefile (recv) on the socket.
-        if chunked:
-            conn.request_chunked(method, url, **httplib_request_kw)
-        else:
-            conn.request(method, url, **httplib_request_kw)
-
-        # Reset the timeout for the recv() on the socket
-        read_timeout = timeout_obj.read_timeout
-
-        # App Engine doesn't have a sock attr
-        if getattr(conn, 'sock', None):
-            # In Python 3 socket.py will catch EAGAIN and return None when you
-            # try and read into the file pointer created by http.client, which
-            # instead raises a BadStatusLine exception. Instead of catching
-            # the exception and assuming all BadStatusLine exceptions are read
-            # timeouts, check for a zero timeout before making the request.
-            if read_timeout == 0:
-                raise ReadTimeoutError(
-                    self, url, "Read timed out. (read timeout=%s)" % read_timeout)
-            if read_timeout is Timeout.DEFAULT_TIMEOUT:
-                conn.sock.settimeout(socket.getdefaulttimeout())
-            else:  # None or a value
-                conn.sock.settimeout(read_timeout)
-
-        # Receive the response from the server
-        try:
-            try:  # Python 2.7, use buffering of HTTP responses
-                httplib_response = conn.getresponse(buffering=True)
-            except TypeError:  # Python 2.6 and older, Python 3
-                try:
-                    httplib_response = conn.getresponse()
-                except Exception as e:
-                    # Remove the TypeError from the exception chain in Python 3;
-                    # otherwise it looks like a programming error was the cause.
-                    six.raise_from(e, None)
-        except (SocketTimeout, BaseSSLError, SocketError) as e:
-            self._raise_timeout(err=e, url=url, timeout_value=read_timeout)
-            raise
-
-        # AppEngine doesn't have a version attr.
-        http_version = getattr(conn, '_http_vsn_str', 'HTTP/?')
-        log.debug("%s://%s:%s \"%s %s %s\" %s %s", self.scheme, self.host, self.port,
-                  method, url, http_version, httplib_response.status,
-                  httplib_response.length)
-
-        try:
-            assert_header_parsing(httplib_response.msg)
-        except HeaderParsingError as hpe:  # Platform-specific: Python 3
-            log.warning(
-                'Failed to parse headers (url=%s): %s',
-                self._absolute_url(url), hpe, exc_info=True)
-
-        return httplib_response
-
-    def _absolute_url(self, path):
-        return Url(scheme=self.scheme, host=self.host, port=self.port, path=path).url
-
-    def close(self):
-        """
-        Close all pooled connections and disable the pool.
-        """
-        # Disable access to the pool
-        old_pool, self.pool = self.pool, None
-
-        try:
-            while True:
-                conn = old_pool.get(block=False)
-                if conn:
-                    conn.close()
-
-        except queue.Empty:
-            pass  # Done.
-
-    def is_same_host(self, url):
-        """
-        Check if the given ``url`` is a member of the same host as this
-        connection pool.
-        """
-        if url.startswith('/'):
-            return True
-
-        # TODO: Add optional support for socket.gethostbyname checking.
-        scheme, host, port = get_host(url)
-
-        host = _ipv6_host(host).lower()
-
-        # Use explicit default port for comparison when none is given
-        if self.port and not port:
-            port = port_by_scheme.get(scheme)
-        elif not self.port and port == port_by_scheme.get(scheme):
-            port = None
-
-        return (scheme, host, port) == (self.scheme, self.host, self.port)
-
-    def urlopen(self, method, url, body=None, headers=None, retries=None,
-                redirect=True, assert_same_host=True, timeout=_Default,
-                pool_timeout=None, release_conn=None, chunked=False,
-                body_pos=None, **response_kw):
-        """
-        Get a connection from the pool and perform an HTTP request. This is the
-        lowest level call for making a request, so you'll need to specify all
-        the raw details.
-
-        .. note::
-
-           More commonly, it's appropriate to use a convenience method provided
-           by :class:`.RequestMethods`, such as :meth:`request`.
-
-        .. note::
-
-           `release_conn` will only behave as expected if
-           `preload_content=False` because we want to make
-           `preload_content=False` the default behaviour someday soon without
-           breaking backwards compatibility.
-
-        :param method:
-            HTTP request method (such as GET, POST, PUT, etc.)
-
-        :param body:
-            Data to send in the request body (useful for creating
-            POST requests, see HTTPConnectionPool.post_url for
-            more convenience).
-
-        :param headers:
-            Dictionary of custom headers to send, such as User-Agent,
-            If-None-Match, etc. If None, pool headers are used. If provided,
-            these headers completely replace any pool-specific headers.
-
-        :param retries:
-            Configure the number of retries to allow before raising a
-            :class:`~urllib3.exceptions.MaxRetryError` exception.
-
-            Pass ``None`` to retry until you receive a response. Pass a
-            :class:`~urllib3.util.retry.Retry` object for fine-grained control
-            over different types of retries.
-            Pass an integer number to retry connection errors that many times,
-            but no other types of errors. Pass zero to never retry.
-
-            If ``False``, then retries are disabled and any exception is raised
-            immediately. Also, instead of raising a MaxRetryError on redirects,
-            the redirect response will be returned.
-
-        :type retries: :class:`~urllib3.util.retry.Retry`, False, or an int.
-
-        :param redirect:
-            If True, automatically handle redirects (status codes 301, 302,
-            303, 307, 308). Each redirect counts as a retry. Disabling retries
-            will disable redirect, too.
-
-        :param assert_same_host:
-            If ``True``, will make sure that the host of the pool requests is
-            consistent else will raise HostChangedError. When False, you can
-            use the pool on an HTTP proxy and request foreign hosts.
-
-        :param timeout:
-            If specified, overrides the default timeout for this one
-            request. It may be a float (in seconds) or an instance of
-            :class:`urllib3.util.Timeout`.
-
-        :param pool_timeout:
-            If set and the pool is set to block=True, then this method will
-            block for ``pool_timeout`` seconds and raise EmptyPoolError if no
-            connection is available within the time period.
-
-        :param release_conn:
-            If False, then the urlopen call will not release the connection
-            back into the pool once a response is received (but will release if
-            you read the entire contents of the response such as when
-            `preload_content=True`). This is useful if you're not preloading
-            the response's content immediately. You will need to call
-            ``r.release_conn()`` on the response ``r`` to return the connection
-            back into the pool. If None, it takes the value of
-            ``response_kw.get('preload_content', True)``.
-
-        :param chunked:
-            If True, urllib3 will send the body using chunked transfer
-            encoding. Otherwise, urllib3 will send the body using the standard
-            content-length form. Defaults to False.
-
-        :param int body_pos:
-            Position to seek to in file-like body in the event of a retry or
-            redirect. Typically this won't need to be set because urllib3 will
-            auto-populate the value when needed.
-
-        :param \\**response_kw:
-            Additional parameters are passed to
-            :meth:`urllib3.response.HTTPResponse.from_httplib`
-        """
-        if headers is None:
-            headers = self.headers
-
-        if not isinstance(retries, Retry):
-            retries = Retry.from_int(retries, redirect=redirect, default=self.retries)
-
-        if release_conn is None:
-            release_conn = response_kw.get('preload_content', True)
-
-        # Check host
-        if assert_same_host and not self.is_same_host(url):
-            raise HostChangedError(self, url, retries)
-
-        conn = None
-
-        # Track whether `conn` needs to be released before
-        # returning/raising/recursing. Update this variable if necessary, and
-        # leave `release_conn` constant throughout the function. That way, if
-        # the function recurses, the original value of `release_conn` will be
-        # passed down into the recursive call, and its value will be respected.
-        #
-        # See issue #651 [1] for details.
-        #
-        # [1] <https://github.com/shazow/urllib3/issues/651>
-        release_this_conn = release_conn
-
-        # Merge the proxy headers. Only do this in HTTP. We have to copy the
-        # headers dict so we can safely change it without those changes being
-        # reflected in anyone else's copy.
-        if self.scheme == 'http':
-            headers = headers.copy()
-            headers.update(self.proxy_headers)
-
-        # Must keep the exception bound to a separate variable or else Python 3
-        # complains about UnboundLocalError.
-        err = None
-
-        # Keep track of whether we cleanly exited the except block. This
-        # ensures we do proper cleanup in finally.
-        clean_exit = False
-
-        # Rewind body position, if needed. Record current position
-        # for future rewinds in the event of a redirect/retry.
-        body_pos = set_file_position(body, body_pos)
-
-        try:
-            # Request a connection from the queue.
-            timeout_obj = self._get_timeout(timeout)
-            conn = self._get_conn(timeout=pool_timeout)
-
-            conn.timeout = timeout_obj.connect_timeout
-
-            is_new_proxy_conn = self.proxy is not None and not getattr(conn, 'sock', None)
-            if is_new_proxy_conn:
-                self._prepare_proxy(conn)
-
-            # Make the request on the httplib connection object.
-            httplib_response = self._make_request(conn, method, url,
-                                                  timeout=timeout_obj,
-                                                  body=body, headers=headers,
-                                                  chunked=chunked)
-
-            # If we're going to release the connection in ``finally:``, then
-            # the response doesn't need to know about the connection. Otherwise
-            # it will also try to release it and we'll have a double-release
-            # mess.
-            response_conn = conn if not release_conn else None
-
-            # Pass method to Response for length checking
-            response_kw['request_method'] = method
-
-            # Import httplib's response into our own wrapper object
-            response = self.ResponseCls.from_httplib(httplib_response,
-                                                     pool=self,
-                                                     connection=response_conn,
-                                                     retries=retries,
-                                                     **response_kw)
-
-            # Everything went great!
-            clean_exit = True
-
-        except queue.Empty:
-            # Timed out by queue.
-            raise EmptyPoolError(self, "No pool connections are available.")
-
-        except (BaseSSLError, CertificateError) as e:
-            # Close the connection. If a connection is reused on which there
-            # was a Certificate error, the next request will certainly raise
-            # another Certificate error.
-            clean_exit = False
-            raise SSLError(e)
-
-        except SSLError:
-            # Treat SSLError separately from BaseSSLError to preserve
-            # traceback.
-            clean_exit = False
-            raise
-
-        except (TimeoutError, HTTPException, SocketError, ProtocolError) as e:
-            # Discard the connection for these exceptions. It will be
-            # be replaced during the next _get_conn() call.
-            clean_exit = False
-
-            if isinstance(e, (SocketError, NewConnectionError)) and self.proxy:
-                e = ProxyError('Cannot connect to proxy.', e)
-            elif isinstance(e, (SocketError, HTTPException)):
-                e = ProtocolError('Connection aborted.', e)
-
-            retries = retries.increment(method, url, error=e, _pool=self,
-                                        _stacktrace=sys.exc_info()[2])
-            retries.sleep()
-
-            # Keep track of the error for the retry warning.
-            err = e
-
-        finally:
-            if not clean_exit:
-                # We hit some kind of exception, handled or otherwise. We need
-                # to throw the connection away unless explicitly told not to.
-                # Close the connection, set the variable to None, and make sure
-                # we put the None back in the pool to avoid leaking it.
-                conn = conn and conn.close()
-                release_this_conn = True
-
-            if release_this_conn:
-                # Put the connection back to be reused. If the connection is
-                # expired then it will be None, which will get replaced with a
-                # fresh connection during _get_conn.
-                self._put_conn(conn)
-
-        if not conn:
-            # Try again
-            log.warning("Retrying (%r) after connection "
-                        "broken by '%r': %s", retries, err, url)
-            return self.urlopen(method, url, body, headers, retries,
-                                redirect, assert_same_host,
-                                timeout=timeout, pool_timeout=pool_timeout,
-                                release_conn=release_conn, body_pos=body_pos,
-                                **response_kw)
-
-        # Handle redirect?
-        redirect_location = redirect and response.get_redirect_location()
-        if redirect_location:
-            if response.status == 303:
-                method = 'GET'
-
-            try:
-                retries = retries.increment(method, url, response=response, _pool=self)
-            except MaxRetryError:
-                if retries.raise_on_redirect:
-                    # Release the connection for this response, since we're not
-                    # returning it to be released manually.
-                    response.release_conn()
-                    raise
-                return response
-
-            retries.sleep_for_retry(response)
-            log.debug("Redirecting %s -> %s", url, redirect_location)
-            return self.urlopen(
-                method, redirect_location, body, headers,
-                retries=retries, redirect=redirect,
-                assert_same_host=assert_same_host,
-                timeout=timeout, pool_timeout=pool_timeout,
-                release_conn=release_conn, body_pos=body_pos,
-                **response_kw)
-
-        # Check if we should retry the HTTP response.
-        has_retry_after = bool(response.getheader('Retry-After'))
-        if retries.is_retry(method, response.status, has_retry_after):
-            try:
-                retries = retries.increment(method, url, response=response, _pool=self)
-            except MaxRetryError:
-                if retries.raise_on_status:
-                    # Release the connection for this response, since we're not
-                    # returning it to be released manually.
-                    response.release_conn()
-                    raise
-                return response
-            retries.sleep(response)
-            log.debug("Retry: %s", url)
-            return self.urlopen(
-                method, url, body, headers,
-                retries=retries, redirect=redirect,
-                assert_same_host=assert_same_host,
-                timeout=timeout, pool_timeout=pool_timeout,
-                release_conn=release_conn,
-                body_pos=body_pos, **response_kw)
-
-        return response
-
-
-class HTTPSConnectionPool(HTTPConnectionPool):
-    """
-    Same as :class:`.HTTPConnectionPool`, but HTTPS.
-
-    When Python is compiled with the :mod:`ssl` module, then
-    :class:`.VerifiedHTTPSConnection` is used, which *can* verify certificates,
-    instead of :class:`.HTTPSConnection`.
-
-    :class:`.VerifiedHTTPSConnection` uses one of ``assert_fingerprint``,
-    ``assert_hostname`` and ``host`` in this order to verify connections.
-    If ``assert_hostname`` is False, no verification is done.
-
-    The ``key_file``, ``cert_file``, ``cert_reqs``, ``ca_certs``,
-    ``ca_cert_dir``, and ``ssl_version`` are only used if :mod:`ssl` is
-    available and are fed into :meth:`urllib3.util.ssl_wrap_socket` to upgrade
-    the connection socket into an SSL socket.
-    """
-
-    scheme = 'https'
-    ConnectionCls = HTTPSConnection
-
-    def __init__(self, host, port=None,
-                 strict=False, timeout=Timeout.DEFAULT_TIMEOUT, maxsize=1,
-                 block=False, headers=None, retries=None,
-                 _proxy=None, _proxy_headers=None,
-                 key_file=None, cert_file=None, cert_reqs=None,
-                 ca_certs=None, ssl_version=None,
-                 assert_hostname=None, assert_fingerprint=None,
-                 ca_cert_dir=None, **conn_kw):
-
-        HTTPConnectionPool.__init__(self, host, port, strict, timeout, maxsize,
-                                    block, headers, retries, _proxy, _proxy_headers,
-                                    **conn_kw)
-
-        if ca_certs and cert_reqs is None:
-            cert_reqs = 'CERT_REQUIRED'
-
-        self.key_file = key_file
-        self.cert_file = cert_file
-        self.cert_reqs = cert_reqs
-        self.ca_certs = ca_certs
-        self.ca_cert_dir = ca_cert_dir
-        self.ssl_version = ssl_version
-        self.assert_hostname = assert_hostname
-        self.assert_fingerprint = assert_fingerprint
-
-    def _prepare_conn(self, conn):
-        """
-        Prepare the ``connection`` for :meth:`urllib3.util.ssl_wrap_socket`
-        and establish the tunnel if proxy is used.
-        """
-
-        if isinstance(conn, VerifiedHTTPSConnection):
-            conn.set_cert(key_file=self.key_file,
-                          cert_file=self.cert_file,
-                          cert_reqs=self.cert_reqs,
-                          ca_certs=self.ca_certs,
-                          ca_cert_dir=self.ca_cert_dir,
-                          assert_hostname=self.assert_hostname,
-                          assert_fingerprint=self.assert_fingerprint)
-            conn.ssl_version = self.ssl_version
-        return conn
-
-    def _prepare_proxy(self, conn):
-        """
-        Establish tunnel connection early, because otherwise httplib
-        would improperly set Host: header to proxy's IP:port.
-        """
-        # Python 2.7+
-        try:
-            set_tunnel = conn.set_tunnel
-        except AttributeError:  # Platform-specific: Python 2.6
-            set_tunnel = conn._set_tunnel
-
-        if sys.version_info <= (2, 6, 4) and not self.proxy_headers:  # Python 2.6.4 and older
-            set_tunnel(self.host, self.port)
-        else:
-            set_tunnel(self.host, self.port, self.proxy_headers)
-
-        conn.connect()
-
-    def _new_conn(self):
-        """
-        Return a fresh :class:`httplib.HTTPSConnection`.
-        """
-        self.num_connections += 1
-        log.debug("Starting new HTTPS connection (%d): %s",
-                  self.num_connections, self.host)
-
-        if not self.ConnectionCls or self.ConnectionCls is DummyConnection:
-            raise SSLError("Can't connect to HTTPS URL because the SSL "
-                           "module is not available.")
-
-        actual_host = self.host
-        actual_port = self.port
-        if self.proxy is not None:
-            actual_host = self.proxy.host
-            actual_port = self.proxy.port
-
-        conn = self.ConnectionCls(host=actual_host, port=actual_port,
-                                  timeout=self.timeout.connect_timeout,
-                                  strict=self.strict, **self.conn_kw)
-
-        return self._prepare_conn(conn)
-
-    def _validate_conn(self, conn):
-        """
-        Called right before a request is made, after the socket is created.
-        """
-        super(HTTPSConnectionPool, self)._validate_conn(conn)
-
-        # Force connect early to allow us to validate the connection.
-        if not getattr(conn, 'sock', None):  # AppEngine might not have  `.sock`
-            conn.connect()
-
-        if not conn.is_verified:
-            warnings.warn((
-                'Unverified HTTPS request is being made. '
-                'Adding certificate verification is strongly advised. See: '
-                'https://urllib3.readthedocs.io/en/latest/advanced-usage.html'
-                '#ssl-warnings'),
-                InsecureRequestWarning)
-
-
-def connection_from_url(url, **kw):
-    """
-    Given a url, return an :class:`.ConnectionPool` instance of its host.
-
-    This is a shortcut for not having to parse out the scheme, host, and port
-    of the url before creating an :class:`.ConnectionPool` instance.
-
-    :param url:
-        Absolute URL string that must include the scheme. Port is optional.
-
-    :param \\**kw:
-        Passes additional parameters to the constructor of the appropriate
-        :class:`.ConnectionPool`. Useful for specifying things like
-        timeout, maxsize, headers, etc.
-
-    Example::
-
-        >>> conn = connection_from_url('http://google.com/')
-        >>> r = conn.request('GET', '/')
-    """
-    scheme, host, port = get_host(url)
-    port = port or port_by_scheme.get(scheme, 80)
-    if scheme == 'https':
-        return HTTPSConnectionPool(host, port=port, **kw)
-    else:
-        return HTTPConnectionPool(host, port=port, **kw)
-
-
-def _ipv6_host(host):
-    """
-    Process IPv6 address literals
-    """
-
-    # httplib doesn't like it when we include brackets in IPv6 addresses
-    # Specifically, if we include brackets but also pass the port then
-    # httplib crazily doubles up the square brackets on the Host header.
-    # Instead, we need to make sure we never pass ``None`` as the port.
-    # However, for backward compatibility reasons we can't actually
-    # *assert* that.  See http://bugs.python.org/issue28539
-    #
-    # Also if an IPv6 address literal has a zone identifier, the
-    # percent sign might be URIencoded, convert it back into ASCII
-    if host.startswith('[') and host.endswith(']'):
-        host = host.replace('%25', '%').strip('[]')
-    return host
diff --git a/collectors/python.d.plugin/python_modules/urllib3/contrib/__init__.py b/collectors/python.d.plugin/python_modules/urllib3/contrib/__init__.py
deleted file mode 100644
index e69de29bb..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/contrib/__init__.py
+++ /dev/null
diff --git a/collectors/python.d.plugin/python_modules/urllib3/contrib/_securetransport/__init__.py b/collectors/python.d.plugin/python_modules/urllib3/contrib/_securetransport/__init__.py
deleted file mode 100644
index e69de29bb..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/contrib/_securetransport/__init__.py
+++ /dev/null
diff --git a/collectors/python.d.plugin/python_modules/urllib3/contrib/_securetransport/bindings.py b/collectors/python.d.plugin/python_modules/urllib3/contrib/_securetransport/bindings.py
deleted file mode 100644
index bb826673f..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/contrib/_securetransport/bindings.py
+++ /dev/null
@@ -1,591 +0,0 @@
-# SPDX-License-Identifier: MIT
-"""
-This module uses ctypes to bind a whole bunch of functions and constants from
-SecureTransport. The goal here is to provide the low-level API to
-SecureTransport. These are essentially the C-level functions and constants, and
-they're pretty gross to work with.
-
-This code is a bastardised version of the code found in Will Bond's oscrypto
-library. An enormous debt is owed to him for blazing this trail for us. For
-that reason, this code should be considered to be covered both by urllib3's
-license and by oscrypto's:
-
-    Copyright (c) 2015-2016 Will Bond <will@wbond.net>
-
-    Permission is hereby granted, free of charge, to any person obtaining a
-    copy of this software and associated documentation files (the "Software"),
-    to deal in the Software without restriction, including without limitation
-    the rights to use, copy, modify, merge, publish, distribute, sublicense,
-    and/or sell copies of the Software, and to permit persons to whom the
-    Software is furnished to do so, subject to the following conditions:
-
-    The above copyright notice and this permission notice shall be included in
-    all copies or substantial portions of the Software.
-
-    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
-    FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
-    DEALINGS IN THE SOFTWARE.
-"""
-from __future__ import absolute_import
-
-import platform
-from ctypes.util import find_library
-from ctypes import (
-    c_void_p, c_int32, c_char_p, c_size_t, c_byte, c_uint32, c_ulong, c_long,
-    c_bool
-)
-from ctypes import CDLL, POINTER, CFUNCTYPE
-
-
-security_path = find_library('Security')
-if not security_path:
-    raise ImportError('The library Security could not be found')
-
-
-core_foundation_path = find_library('CoreFoundation')
-if not core_foundation_path:
-    raise ImportError('The library CoreFoundation could not be found')
-
-
-version = platform.mac_ver()[0]
-version_info = tuple(map(int, version.split('.')))
-if version_info < (10, 8):
-    raise OSError(
-        'Only OS X 10.8 and newer are supported, not %s.%s' % (
-            version_info[0], version_info[1]
-        )
-    )
-
-Security = CDLL(security_path, use_errno=True)
-CoreFoundation = CDLL(core_foundation_path, use_errno=True)
-
-Boolean = c_bool
-CFIndex = c_long
-CFStringEncoding = c_uint32
-CFData = c_void_p
-CFString = c_void_p
-CFArray = c_void_p
-CFMutableArray = c_void_p
-CFDictionary = c_void_p
-CFError = c_void_p
-CFType = c_void_p
-CFTypeID = c_ulong
-
-CFTypeRef = POINTER(CFType)
-CFAllocatorRef = c_void_p
-
-OSStatus = c_int32
-
-CFDataRef = POINTER(CFData)
-CFStringRef = POINTER(CFString)
-CFArrayRef = POINTER(CFArray)
-CFMutableArrayRef = POINTER(CFMutableArray)
-CFDictionaryRef = POINTER(CFDictionary)
-CFArrayCallBacks = c_void_p
-CFDictionaryKeyCallBacks = c_void_p
-CFDictionaryValueCallBacks = c_void_p
-
-SecCertificateRef = POINTER(c_void_p)
-SecExternalFormat = c_uint32
-SecExternalItemType = c_uint32
-SecIdentityRef = POINTER(c_void_p)
-SecItemImportExportFlags = c_uint32
-SecItemImportExportKeyParameters = c_void_p
-SecKeychainRef = POINTER(c_void_p)
-SSLProtocol = c_uint32
-SSLCipherSuite = c_uint32
-SSLContextRef = POINTER(c_void_p)
-SecTrustRef = POINTER(c_void_p)
-SSLConnectionRef = c_uint32
-SecTrustResultType = c_uint32
-SecTrustOptionFlags = c_uint32
-SSLProtocolSide = c_uint32
-SSLConnectionType = c_uint32
-SSLSessionOption = c_uint32
-
-
-try:
-    Security.SecItemImport.argtypes = [
-        CFDataRef,
-        CFStringRef,
-        POINTER(SecExternalFormat),
-        POINTER(SecExternalItemType),
-        SecItemImportExportFlags,
-        POINTER(SecItemImportExportKeyParameters),
-        SecKeychainRef,
-        POINTER(CFArrayRef),
-    ]
-    Security.SecItemImport.restype = OSStatus
-
-    Security.SecCertificateGetTypeID.argtypes = []
-    Security.SecCertificateGetTypeID.restype = CFTypeID
-
-    Security.SecIdentityGetTypeID.argtypes = []
-    Security.SecIdentityGetTypeID.restype = CFTypeID
-
-    Security.SecKeyGetTypeID.argtypes = []
-    Security.SecKeyGetTypeID.restype = CFTypeID
-
-    Security.SecCertificateCreateWithData.argtypes = [
-        CFAllocatorRef,
-        CFDataRef
-    ]
-    Security.SecCertificateCreateWithData.restype = SecCertificateRef
-
-    Security.SecCertificateCopyData.argtypes = [
-        SecCertificateRef
-    ]
-    Security.SecCertificateCopyData.restype = CFDataRef
-
-    Security.SecCopyErrorMessageString.argtypes = [
-        OSStatus,
-        c_void_p
-    ]
-    Security.SecCopyErrorMessageString.restype = CFStringRef
-
-    Security.SecIdentityCreateWithCertificate.argtypes = [
-        CFTypeRef,
-        SecCertificateRef,
-        POINTER(SecIdentityRef)
-    ]
-    Security.SecIdentityCreateWithCertificate.restype = OSStatus
-
-    Security.SecKeychainCreate.argtypes = [
-        c_char_p,
-        c_uint32,
-        c_void_p,
-        Boolean,
-        c_void_p,
-        POINTER(SecKeychainRef)
-    ]
-    Security.SecKeychainCreate.restype = OSStatus
-
-    Security.SecKeychainDelete.argtypes = [
-        SecKeychainRef
-    ]
-    Security.SecKeychainDelete.restype = OSStatus
-
-    Security.SecPKCS12Import.argtypes = [
-        CFDataRef,
-        CFDictionaryRef,
-        POINTER(CFArrayRef)
-    ]
-    Security.SecPKCS12Import.restype = OSStatus
-
-    SSLReadFunc = CFUNCTYPE(OSStatus, SSLConnectionRef, c_void_p, POINTER(c_size_t))
-    SSLWriteFunc = CFUNCTYPE(OSStatus, SSLConnectionRef, POINTER(c_byte), POINTER(c_size_t))
-
-    Security.SSLSetIOFuncs.argtypes = [
-        SSLContextRef,
-        SSLReadFunc,
-        SSLWriteFunc
-    ]
-    Security.SSLSetIOFuncs.restype = OSStatus
-
-    Security.SSLSetPeerID.argtypes = [
-        SSLContextRef,
-        c_char_p,
-        c_size_t
-    ]
-    Security.SSLSetPeerID.restype = OSStatus
-
-    Security.SSLSetCertificate.argtypes = [
-        SSLContextRef,
-        CFArrayRef
-    ]
-    Security.SSLSetCertificate.restype = OSStatus
-
-    Security.SSLSetCertificateAuthorities.argtypes = [
-        SSLContextRef,
-        CFTypeRef,
-        Boolean
-    ]
-    Security.SSLSetCertificateAuthorities.restype = OSStatus
-
-    Security.SSLSetConnection.argtypes = [
-        SSLContextRef,
-        SSLConnectionRef
-    ]
-    Security.SSLSetConnection.restype = OSStatus
-
-    Security.SSLSetPeerDomainName.argtypes = [
-        SSLContextRef,
-        c_char_p,
-        c_size_t
-    ]
-    Security.SSLSetPeerDomainName.restype = OSStatus
-
-    Security.SSLHandshake.argtypes = [
-        SSLContextRef
-    ]
-    Security.SSLHandshake.restype = OSStatus
-
-    Security.SSLRead.argtypes = [
-        SSLContextRef,
-        c_char_p,
-        c_size_t,
-        POINTER(c_size_t)
-    ]
-    Security.SSLRead.restype = OSStatus
-
-    Security.SSLWrite.argtypes = [
-        SSLContextRef,
-        c_char_p,
-        c_size_t,
-        POINTER(c_size_t)
-    ]
-    Security.SSLWrite.restype = OSStatus
-
-    Security.SSLClose.argtypes = [
-        SSLContextRef
-    ]
-    Security.SSLClose.restype = OSStatus
-
-    Security.SSLGetNumberSupportedCiphers.argtypes = [
-        SSLContextRef,
-        POINTER(c_size_t)
-    ]
-    Security.SSLGetNumberSupportedCiphers.restype = OSStatus
-
-    Security.SSLGetSupportedCiphers.argtypes = [
-        SSLContextRef,
-        POINTER(SSLCipherSuite),
-        POINTER(c_size_t)
-    ]
-    Security.SSLGetSupportedCiphers.restype = OSStatus
-
-    Security.SSLSetEnabledCiphers.argtypes = [
-        SSLContextRef,
-        POINTER(SSLCipherSuite),
-        c_size_t
-    ]
-    Security.SSLSetEnabledCiphers.restype = OSStatus
-
-    Security.SSLGetNumberEnabledCiphers.argtype = [
-        SSLContextRef,
-        POINTER(c_size_t)
-    ]
-    Security.SSLGetNumberEnabledCiphers.restype = OSStatus
-
-    Security.SSLGetEnabledCiphers.argtypes = [
-        SSLContextRef,
-        POINTER(SSLCipherSuite),
-        POINTER(c_size_t)
-    ]
-    Security.SSLGetEnabledCiphers.restype = OSStatus
-
-    Security.SSLGetNegotiatedCipher.argtypes = [
-        SSLContextRef,
-        POINTER(SSLCipherSuite)
-    ]
-    Security.SSLGetNegotiatedCipher.restype = OSStatus
-
-    Security.SSLGetNegotiatedProtocolVersion.argtypes = [
-        SSLContextRef,
-        POINTER(SSLProtocol)
-    ]
-    Security.SSLGetNegotiatedProtocolVersion.restype = OSStatus
-
-    Security.SSLCopyPeerTrust.argtypes = [
-        SSLContextRef,
-        POINTER(SecTrustRef)
-    ]
-    Security.SSLCopyPeerTrust.restype = OSStatus
-
-    Security.SecTrustSetAnchorCertificates.argtypes = [
-        SecTrustRef,
-        CFArrayRef
-    ]
-    Security.SecTrustSetAnchorCertificates.restype = OSStatus
-
-    Security.SecTrustSetAnchorCertificatesOnly.argstypes = [
-        SecTrustRef,
-        Boolean
-    ]
-    Security.SecTrustSetAnchorCertificatesOnly.restype = OSStatus
-
-    Security.SecTrustEvaluate.argtypes = [
-        SecTrustRef,
-        POINTER(SecTrustResultType)
-    ]
-    Security.SecTrustEvaluate.restype = OSStatus
-
-    Security.SecTrustGetCertificateCount.argtypes = [
-        SecTrustRef
-    ]
-    Security.SecTrustGetCertificateCount.restype = CFIndex
-
-    Security.SecTrustGetCertificateAtIndex.argtypes = [
-        SecTrustRef,
-        CFIndex
-    ]
-    Security.SecTrustGetCertificateAtIndex.restype = SecCertificateRef
-
-    Security.SSLCreateContext.argtypes = [
-        CFAllocatorRef,
-        SSLProtocolSide,
-        SSLConnectionType
-    ]
-    Security.SSLCreateContext.restype = SSLContextRef
-
-    Security.SSLSetSessionOption.argtypes = [
-        SSLContextRef,
-        SSLSessionOption,
-        Boolean
-    ]
-    Security.SSLSetSessionOption.restype = OSStatus
-
-    Security.SSLSetProtocolVersionMin.argtypes = [
-        SSLContextRef,
-        SSLProtocol
-    ]
-    Security.SSLSetProtocolVersionMin.restype = OSStatus
-
-    Security.SSLSetProtocolVersionMax.argtypes = [
-        SSLContextRef,
-        SSLProtocol
-    ]
-    Security.SSLSetProtocolVersionMax.restype = OSStatus
-
-    Security.SecCopyErrorMessageString.argtypes = [
-        OSStatus,
-        c_void_p
-    ]
-    Security.SecCopyErrorMessageString.restype = CFStringRef
-
-    Security.SSLReadFunc = SSLReadFunc
-    Security.SSLWriteFunc = SSLWriteFunc
-    Security.SSLContextRef = SSLContextRef
-    Security.SSLProtocol = SSLProtocol
-    Security.SSLCipherSuite = SSLCipherSuite
-    Security.SecIdentityRef = SecIdentityRef
-    Security.SecKeychainRef = SecKeychainRef
-    Security.SecTrustRef = SecTrustRef
-    Security.SecTrustResultType = SecTrustResultType
-    Security.SecExternalFormat = SecExternalFormat
-    Security.OSStatus = OSStatus
-
-    Security.kSecImportExportPassphrase = CFStringRef.in_dll(
-        Security, 'kSecImportExportPassphrase'
-    )
-    Security.kSecImportItemIdentity = CFStringRef.in_dll(
-        Security, 'kSecImportItemIdentity'
-    )
-
-    # CoreFoundation time!
-    CoreFoundation.CFRetain.argtypes = [
-        CFTypeRef
-    ]
-    CoreFoundation.CFRetain.restype = CFTypeRef
-
-    CoreFoundation.CFRelease.argtypes = [
-        CFTypeRef
-    ]
-    CoreFoundation.CFRelease.restype = None
-
-    CoreFoundation.CFGetTypeID.argtypes = [
-        CFTypeRef
-    ]
-    CoreFoundation.CFGetTypeID.restype = CFTypeID
-
-    CoreFoundation.CFStringCreateWithCString.argtypes = [
-        CFAllocatorRef,
-        c_char_p,
-        CFStringEncoding
-    ]
-    CoreFoundation.CFStringCreateWithCString.restype = CFStringRef
-
-    CoreFoundation.CFStringGetCStringPtr.argtypes = [
-        CFStringRef,
-        CFStringEncoding
-    ]
-    CoreFoundation.CFStringGetCStringPtr.restype = c_char_p
-
-    CoreFoundation.CFStringGetCString.argtypes = [
-        CFStringRef,
-        c_char_p,
-        CFIndex,
-        CFStringEncoding
-    ]
-    CoreFoundation.CFStringGetCString.restype = c_bool
-
-    CoreFoundation.CFDataCreate.argtypes = [
-        CFAllocatorRef,
-        c_char_p,
-        CFIndex
-    ]
-    CoreFoundation.CFDataCreate.restype = CFDataRef
-
-    CoreFoundation.CFDataGetLength.argtypes = [
-        CFDataRef
-    ]
-    CoreFoundation.CFDataGetLength.restype = CFIndex
-
-    CoreFoundation.CFDataGetBytePtr.argtypes = [
-        CFDataRef
-    ]
-    CoreFoundation.CFDataGetBytePtr.restype = c_void_p
-
-    CoreFoundation.CFDictionaryCreate.argtypes = [
-        CFAllocatorRef,
-        POINTER(CFTypeRef),
-        POINTER(CFTypeRef),
-        CFIndex,
-        CFDictionaryKeyCallBacks,
-        CFDictionaryValueCallBacks
-    ]
-    CoreFoundation.CFDictionaryCreate.restype = CFDictionaryRef
-
-    CoreFoundation.CFDictionaryGetValue.argtypes = [
-        CFDictionaryRef,
-        CFTypeRef
-    ]
-    CoreFoundation.CFDictionaryGetValue.restype = CFTypeRef
-
-    CoreFoundation.CFArrayCreate.argtypes = [
-        CFAllocatorRef,
-        POINTER(CFTypeRef),
-        CFIndex,
-        CFArrayCallBacks,
-    ]
-    CoreFoundation.CFArrayCreate.restype = CFArrayRef
-
-    CoreFoundation.CFArrayCreateMutable.argtypes = [
-        CFAllocatorRef,
-        CFIndex,
-        CFArrayCallBacks
-    ]
-    CoreFoundation.CFArrayCreateMutable.restype = CFMutableArrayRef
-
-    CoreFoundation.CFArrayAppendValue.argtypes = [
-        CFMutableArrayRef,
-        c_void_p
-    ]
-    CoreFoundation.CFArrayAppendValue.restype = None
-
-    CoreFoundation.CFArrayGetCount.argtypes = [
-        CFArrayRef
-    ]
-    CoreFoundation.CFArrayGetCount.restype = CFIndex
-
-    CoreFoundation.CFArrayGetValueAtIndex.argtypes = [
-        CFArrayRef,
-        CFIndex
-    ]
-    CoreFoundation.CFArrayGetValueAtIndex.restype = c_void_p
-
-    CoreFoundation.kCFAllocatorDefault = CFAllocatorRef.in_dll(
-        CoreFoundation, 'kCFAllocatorDefault'
-    )
-    CoreFoundation.kCFTypeArrayCallBacks = c_void_p.in_dll(CoreFoundation, 'kCFTypeArrayCallBacks')
-    CoreFoundation.kCFTypeDictionaryKeyCallBacks = c_void_p.in_dll(
-        CoreFoundation, 'kCFTypeDictionaryKeyCallBacks'
-    )
-    CoreFoundation.kCFTypeDictionaryValueCallBacks = c_void_p.in_dll(
-        CoreFoundation, 'kCFTypeDictionaryValueCallBacks'
-    )
-
-    CoreFoundation.CFTypeRef = CFTypeRef
-    CoreFoundation.CFArrayRef = CFArrayRef
-    CoreFoundation.CFStringRef = CFStringRef
-    CoreFoundation.CFDictionaryRef = CFDictionaryRef
-
-except (AttributeError):
-    raise ImportError('Error initializing ctypes')
-
-
-class CFConst(object):
-    """
-    A class object that acts as essentially a namespace for CoreFoundation
-    constants.
-    """
-    kCFStringEncodingUTF8 = CFStringEncoding(0x08000100)
-
-
-class SecurityConst(object):
-    """
-    A class object that acts as essentially a namespace for Security constants.
-    """
-    kSSLSessionOptionBreakOnServerAuth = 0
-
-    kSSLProtocol2 = 1
-    kSSLProtocol3 = 2
-    kTLSProtocol1 = 4
-    kTLSProtocol11 = 7
-    kTLSProtocol12 = 8
-
-    kSSLClientSide = 1
-    kSSLStreamType = 0
-
-    kSecFormatPEMSequence = 10
-
-    kSecTrustResultInvalid = 0
-    kSecTrustResultProceed = 1
-    # This gap is present on purpose: this was kSecTrustResultConfirm, which
-    # is deprecated.
-    kSecTrustResultDeny = 3
-    kSecTrustResultUnspecified = 4
-    kSecTrustResultRecoverableTrustFailure = 5
-    kSecTrustResultFatalTrustFailure = 6
-    kSecTrustResultOtherError = 7
-
-    errSSLProtocol = -9800
-    errSSLWouldBlock = -9803
-    errSSLClosedGraceful = -9805
-    errSSLClosedNoNotify = -9816
-    errSSLClosedAbort = -9806
-
-    errSSLXCertChainInvalid = -9807
-    errSSLCrypto = -9809
-    errSSLInternal = -9810
-    errSSLCertExpired = -9814
-    errSSLCertNotYetValid = -9815
-    errSSLUnknownRootCert = -9812
-    errSSLNoRootCert = -9813
-    errSSLHostNameMismatch = -9843
-    errSSLPeerHandshakeFail = -9824
-    errSSLPeerUserCancelled = -9839
-    errSSLWeakPeerEphemeralDHKey = -9850
-    errSSLServerAuthCompleted = -9841
-    errSSLRecordOverflow = -9847
-
-    errSecVerifyFailed = -67808
-    errSecNoTrustSettings = -25263
-    errSecItemNotFound = -25300
-    errSecInvalidTrustSettings = -25262
-
-    # Cipher suites. We only pick the ones our default cipher string allows.
-    TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384 = 0xC02C
-    TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 = 0xC030
-    TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 = 0xC02B
-    TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256 = 0xC02F
-    TLS_DHE_DSS_WITH_AES_256_GCM_SHA384 = 0x00A3
-    TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 = 0x009F
-    TLS_DHE_DSS_WITH_AES_128_GCM_SHA256 = 0x00A2
-    TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 = 0x009E
-    TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384 = 0xC024
-    TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384 = 0xC028
-    TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA = 0xC00A
-    TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA = 0xC014
-    TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 = 0x006B
-    TLS_DHE_DSS_WITH_AES_256_CBC_SHA256 = 0x006A
-    TLS_DHE_RSA_WITH_AES_256_CBC_SHA = 0x0039
-    TLS_DHE_DSS_WITH_AES_256_CBC_SHA = 0x0038
-    TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256 = 0xC023
-    TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 = 0xC027
-    TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA = 0xC009
-    TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA = 0xC013
-    TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 = 0x0067
-    TLS_DHE_DSS_WITH_AES_128_CBC_SHA256 = 0x0040
-    TLS_DHE_RSA_WITH_AES_128_CBC_SHA = 0x0033
-    TLS_DHE_DSS_WITH_AES_128_CBC_SHA = 0x0032
-    TLS_RSA_WITH_AES_256_GCM_SHA384 = 0x009D
-    TLS_RSA_WITH_AES_128_GCM_SHA256 = 0x009C
-    TLS_RSA_WITH_AES_256_CBC_SHA256 = 0x003D
-    TLS_RSA_WITH_AES_128_CBC_SHA256 = 0x003C
-    TLS_RSA_WITH_AES_256_CBC_SHA = 0x0035
-    TLS_RSA_WITH_AES_128_CBC_SHA = 0x002F
diff --git a/collectors/python.d.plugin/python_modules/urllib3/contrib/_securetransport/low_level.py b/collectors/python.d.plugin/python_modules/urllib3/contrib/_securetransport/low_level.py
deleted file mode 100644
index 0f79a1372..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/contrib/_securetransport/low_level.py
+++ /dev/null
@@ -1,344 +0,0 @@
-# SPDX-License-Identifier: MIT
-"""
-Low-level helpers for the SecureTransport bindings.
-
-These are Python functions that are not directly related to the high-level APIs
-but are necessary to get them to work. They include a whole bunch of low-level
-CoreFoundation messing about and memory management. The concerns in this module
-are almost entirely about trying to avoid memory leaks and providing
-appropriate and useful assistance to the higher-level code.
-"""
-import base64
-import ctypes
-import itertools
-import re
-import os
-import ssl
-import tempfile
-
-from .bindings import Security, CoreFoundation, CFConst
-
-
-# This regular expression is used to grab PEM data out of a PEM bundle.
-_PEM_CERTS_RE = re.compile(
-    b"-----BEGIN CERTIFICATE-----\n(.*?)\n-----END CERTIFICATE-----", re.DOTALL
-)
-
-
-def _cf_data_from_bytes(bytestring):
-    """
-    Given a bytestring, create a CFData object from it. This CFData object must
-    be CFReleased by the caller.
-    """
-    return CoreFoundation.CFDataCreate(
-        CoreFoundation.kCFAllocatorDefault, bytestring, len(bytestring)
-    )
-
-
-def _cf_dictionary_from_tuples(tuples):
-    """
-    Given a list of Python tuples, create an associated CFDictionary.
-    """
-    dictionary_size = len(tuples)
-
-    # We need to get the dictionary keys and values out in the same order.
-    keys = (t[0] for t in tuples)
-    values = (t[1] for t in tuples)
-    cf_keys = (CoreFoundation.CFTypeRef * dictionary_size)(*keys)
-    cf_values = (CoreFoundation.CFTypeRef * dictionary_size)(*values)
-
-    return CoreFoundation.CFDictionaryCreate(
-        CoreFoundation.kCFAllocatorDefault,
-        cf_keys,
-        cf_values,
-        dictionary_size,
-        CoreFoundation.kCFTypeDictionaryKeyCallBacks,
-        CoreFoundation.kCFTypeDictionaryValueCallBacks,
-    )
-
-
-def _cf_string_to_unicode(value):
-    """
-    Creates a Unicode string from a CFString object. Used entirely for error
-    reporting.
-
-    Yes, it annoys me quite a lot that this function is this complex.
-    """
-    value_as_void_p = ctypes.cast(value, ctypes.POINTER(ctypes.c_void_p))
-
-    string = CoreFoundation.CFStringGetCStringPtr(
-        value_as_void_p,
-        CFConst.kCFStringEncodingUTF8
-    )
-    if string is None:
-        buffer = ctypes.create_string_buffer(1024)
-        result = CoreFoundation.CFStringGetCString(
-            value_as_void_p,
-            buffer,
-            1024,
-            CFConst.kCFStringEncodingUTF8
-        )
-        if not result:
-            raise OSError('Error copying C string from CFStringRef')
-        string = buffer.value
-    if string is not None:
-        string = string.decode('utf-8')
-    return string
-
-
-def _assert_no_error(error, exception_class=None):
-    """
-    Checks the return code and throws an exception if there is an error to
-    report
-    """
-    if error == 0:
-        return
-
-    cf_error_string = Security.SecCopyErrorMessageString(error, None)
-    output = _cf_string_to_unicode(cf_error_string)
-    CoreFoundation.CFRelease(cf_error_string)
-
-    if output is None or output == u'':
-        output = u'OSStatus %s' % error
-
-    if exception_class is None:
-        exception_class = ssl.SSLError
-
-    raise exception_class(output)
-
-
-def _cert_array_from_pem(pem_bundle):
-    """
-    Given a bundle of certs in PEM format, turns them into a CFArray of certs
-    that can be used to validate a cert chain.
-    """
-    der_certs = [
-        base64.b64decode(match.group(1))
-        for match in _PEM_CERTS_RE.finditer(pem_bundle)
-    ]
-    if not der_certs:
-        raise ssl.SSLError("No root certificates specified")
-
-    cert_array = CoreFoundation.CFArrayCreateMutable(
-        CoreFoundation.kCFAllocatorDefault,
-        0,
-        ctypes.byref(CoreFoundation.kCFTypeArrayCallBacks)
-    )
-    if not cert_array:
-        raise ssl.SSLError("Unable to allocate memory!")
-
-    try:
-        for der_bytes in der_certs:
-            certdata = _cf_data_from_bytes(der_bytes)
-            if not certdata:
-                raise ssl.SSLError("Unable to allocate memory!")
-            cert = Security.SecCertificateCreateWithData(
-                CoreFoundation.kCFAllocatorDefault, certdata
-            )
-            CoreFoundation.CFRelease(certdata)
-            if not cert:
-                raise ssl.SSLError("Unable to build cert object!")
-
-            CoreFoundation.CFArrayAppendValue(cert_array, cert)
-            CoreFoundation.CFRelease(cert)
-    except Exception:
-        # We need to free the array before the exception bubbles further.
-        # We only want to do that if an error occurs: otherwise, the caller
-        # should free.
-        CoreFoundation.CFRelease(cert_array)
-
-    return cert_array
-
-
-def _is_cert(item):
-    """
-    Returns True if a given CFTypeRef is a certificate.
-    """
-    expected = Security.SecCertificateGetTypeID()
-    return CoreFoundation.CFGetTypeID(item) == expected
-
-
-def _is_identity(item):
-    """
-    Returns True if a given CFTypeRef is an identity.
-    """
-    expected = Security.SecIdentityGetTypeID()
-    return CoreFoundation.CFGetTypeID(item) == expected
-
-
-def _temporary_keychain():
-    """
-    This function creates a temporary Mac keychain that we can use to work with
-    credentials. This keychain uses a one-time password and a temporary file to
-    store the data. We expect to have one keychain per socket. The returned
-    SecKeychainRef must be freed by the caller, including calling
-    SecKeychainDelete.
-
-    Returns a tuple of the SecKeychainRef and the path to the temporary
-    directory that contains it.
-    """
-    # Unfortunately, SecKeychainCreate requires a path to a keychain. This
-    # means we cannot use mkstemp to use a generic temporary file. Instead,
-    # we're going to create a temporary directory and a filename to use there.
-    # This filename will be 8 random bytes expanded into base64. We also need
-    # some random bytes to password-protect the keychain we're creating, so we
-    # ask for 40 random bytes.
-    random_bytes = os.urandom(40)
-    filename = base64.b64encode(random_bytes[:8]).decode('utf-8')
-    password = base64.b64encode(random_bytes[8:])  # Must be valid UTF-8
-    tempdirectory = tempfile.mkdtemp()
-
-    keychain_path = os.path.join(tempdirectory, filename).encode('utf-8')
-
-    # We now want to create the keychain itself.
-    keychain = Security.SecKeychainRef()
-    status = Security.SecKeychainCreate(
-        keychain_path,
-        len(password),
-        password,
-        False,
-        None,
-        ctypes.byref(keychain)
-    )
-    _assert_no_error(status)
-
-    # Having created the keychain, we want to pass it off to the caller.
-    return keychain, tempdirectory
-
-
-def _load_items_from_file(keychain, path):
-    """
-    Given a single file, loads all the trust objects from it into arrays and
-    the keychain.
-    Returns a tuple of lists: the first list is a list of identities, the
-    second a list of certs.
-    """
-    certificates = []
-    identities = []
-    result_array = None
-
-    with open(path, 'rb') as f:
-        raw_filedata = f.read()
-
-    try:
-        filedata = CoreFoundation.CFDataCreate(
-            CoreFoundation.kCFAllocatorDefault,
-            raw_filedata,
-            len(raw_filedata)
-        )
-        result_array = CoreFoundation.CFArrayRef()
-        result = Security.SecItemImport(
-            filedata,  # cert data
-            None,  # Filename, leaving it out for now
-            None,  # What the type of the file is, we don't care
-            None,  # what's in the file, we don't care
-            0,  # import flags
-            None,  # key params, can include passphrase in the future
-            keychain,  # The keychain to insert into
-            ctypes.byref(result_array)  # Results
-        )
-        _assert_no_error(result)
-
-        # A CFArray is not very useful to us as an intermediary
-        # representation, so we are going to extract the objects we want
-        # and then free the array. We don't need to keep hold of keys: the
-        # keychain already has them!
-        result_count = CoreFoundation.CFArrayGetCount(result_array)
-        for index in range(result_count):
-            item = CoreFoundation.CFArrayGetValueAtIndex(
-                result_array, index
-            )
-            item = ctypes.cast(item, CoreFoundation.CFTypeRef)
-
-            if _is_cert(item):
-                CoreFoundation.CFRetain(item)
-                certificates.append(item)
-            elif _is_identity(item):
-                CoreFoundation.CFRetain(item)
-                identities.append(item)
-    finally:
-        if result_array:
-            CoreFoundation.CFRelease(result_array)
-
-        CoreFoundation.CFRelease(filedata)
-
-    return (identities, certificates)
-
-
-def _load_client_cert_chain(keychain, *paths):
-    """
-    Load certificates and maybe keys from a number of files. Has the end goal
-    of returning a CFArray containing one SecIdentityRef, and then zero or more
-    SecCertificateRef objects, suitable for use as a client certificate trust
-    chain.
-    """
-    # Ok, the strategy.
-    #
-    # This relies on knowing that macOS will not give you a SecIdentityRef
-    # unless you have imported a key into a keychain. This is a somewhat
-    # artificial limitation of macOS (for example, it doesn't necessarily
-    # affect iOS), but there is nothing inside Security.framework that lets you
-    # get a SecIdentityRef without having a key in a keychain.
-    #
-    # So the policy here is we take all the files and iterate them in order.
-    # Each one will use SecItemImport to have one or more objects loaded from
-    # it. We will also point at a keychain that macOS can use to work with the
-    # private key.
-    #
-    # Once we have all the objects, we'll check what we actually have. If we
-    # already have a SecIdentityRef in hand, fab: we'll use that. Otherwise,
-    # we'll take the first certificate (which we assume to be our leaf) and
-    # ask the keychain to give us a SecIdentityRef with that cert's associated
-    # key.
-    #
-    # We'll then return a CFArray containing the trust chain: one
-    # SecIdentityRef and then zero-or-more SecCertificateRef objects. The
-    # responsibility for freeing this CFArray will be with the caller. This
-    # CFArray must remain alive for the entire connection, so in practice it
-    # will be stored with a single SSLSocket, along with the reference to the
-    # keychain.
-    certificates = []
-    identities = []
-
-    # Filter out bad paths.
-    paths = (path for path in paths if path)
-
-    try:
-        for file_path in paths:
-            new_identities, new_certs = _load_items_from_file(
-                keychain, file_path
-            )
-            identities.extend(new_identities)
-            certificates.extend(new_certs)
-
-        # Ok, we have everything. The question is: do we have an identity? If
-        # not, we want to grab one from the first cert we have.
-        if not identities:
-            new_identity = Security.SecIdentityRef()
-            status = Security.SecIdentityCreateWithCertificate(
-                keychain,
-                certificates[0],
-                ctypes.byref(new_identity)
-            )
-            _assert_no_error(status)
-            identities.append(new_identity)
-
-            # We now want to release the original certificate, as we no longer
-            # need it.
-            CoreFoundation.CFRelease(certificates.pop(0))
-
-        # We now need to build a new CFArray that holds the trust chain.
-        trust_chain = CoreFoundation.CFArrayCreateMutable(
-            CoreFoundation.kCFAllocatorDefault,
-            0,
-            ctypes.byref(CoreFoundation.kCFTypeArrayCallBacks),
-        )
-        for item in itertools.chain(identities, certificates):
-            # ArrayAppendValue does a CFRetain on the item. That's fine,
-            # because the finally block will release our other refs to them.
-            CoreFoundation.CFArrayAppendValue(trust_chain, item)
-
-        return trust_chain
-    finally:
-        for obj in itertools.chain(identities, certificates):
-            CoreFoundation.CFRelease(obj)
diff --git a/collectors/python.d.plugin/python_modules/urllib3/contrib/appengine.py b/collectors/python.d.plugin/python_modules/urllib3/contrib/appengine.py
deleted file mode 100644
index e74589fa8..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/contrib/appengine.py
+++ /dev/null
@@ -1,297 +0,0 @@
-# SPDX-License-Identifier: MIT
-"""
-This module provides a pool manager that uses Google App Engine's
-`URLFetch Service <https://cloud.google.com/appengine/docs/python/urlfetch>`_.
-
-Example usage::
-
-    from urllib3 import PoolManager
-    from urllib3.contrib.appengine import AppEngineManager, is_appengine_sandbox
-
-    if is_appengine_sandbox():
-        # AppEngineManager uses AppEngine's URLFetch API behind the scenes
-        http = AppEngineManager()
-    else:
-        # PoolManager uses a socket-level API behind the scenes
-        http = PoolManager()
-
-    r = http.request('GET', 'https://google.com/')
-
-There are `limitations <https://cloud.google.com/appengine/docs/python/\
-urlfetch/#Python_Quotas_and_limits>`_ to the URLFetch service and it may not be
-the best choice for your application. There are three options for using
-urllib3 on Google App Engine:
-
-1. You can use :class:`AppEngineManager` with URLFetch. URLFetch is
-   cost-effective in many circumstances as long as your usage is within the
-   limitations.
-2. You can use a normal :class:`~urllib3.PoolManager` by enabling sockets.
-   Sockets also have `limitations and restrictions
-   <https://cloud.google.com/appengine/docs/python/sockets/\
-   #limitations-and-restrictions>`_ and have a lower free quota than URLFetch.
-   To use sockets, be sure to specify the following in your ``app.yaml``::
-
-        env_variables:
-            GAE_USE_SOCKETS_HTTPLIB : 'true'
-
-3. If you are using `App Engine Flexible
-<https://cloud.google.com/appengine/docs/flexible/>`_, you can use the standard
-:class:`PoolManager` without any configuration or special environment variables.
-"""
-
-from __future__ import absolute_import
-import logging
-import os
-import warnings
-from ..packages.six.moves.urllib.parse import urljoin
-
-from ..exceptions import (
-    HTTPError,
-    HTTPWarning,
-    MaxRetryError,
-    ProtocolError,
-    TimeoutError,
-    SSLError
-)
-
-from ..packages.six import BytesIO
-from ..request import RequestMethods
-from ..response import HTTPResponse
-from ..util.timeout import Timeout
-from ..util.retry import Retry
-
-try:
-    from google.appengine.api import urlfetch
-except ImportError:
-    urlfetch = None
-
-
-log = logging.getLogger(__name__)
-
-
-class AppEnginePlatformWarning(HTTPWarning):
-    pass
-
-
-class AppEnginePlatformError(HTTPError):
-    pass
-
-
-class AppEngineManager(RequestMethods):
-    """
-    Connection manager for Google App Engine sandbox applications.
-
-    This manager uses the URLFetch service directly instead of using the
-    emulated httplib, and is subject to URLFetch limitations as described in
-    the App Engine documentation `here
-    <https://cloud.google.com/appengine/docs/python/urlfetch>`_.
-
-    Notably it will raise an :class:`AppEnginePlatformError` if:
-        * URLFetch is not available.
-        * If you attempt to use this on App Engine Flexible, as full socket
-          support is available.
-        * If a request size is more than 10 megabytes.
-        * If a response size is more than 32 megabtyes.
-        * If you use an unsupported request method such as OPTIONS.
-
-    Beyond those cases, it will raise normal urllib3 errors.
-    """
-
-    def __init__(self, headers=None, retries=None, validate_certificate=True,
-                 urlfetch_retries=True):
-        if not urlfetch:
-            raise AppEnginePlatformError(
-                "URLFetch is not available in this environment.")
-
-        if is_prod_appengine_mvms():
-            raise AppEnginePlatformError(
-                "Use normal urllib3.PoolManager instead of AppEngineManager"
-                "on Managed VMs, as using URLFetch is not necessary in "
-                "this environment.")
-
-        warnings.warn(
-            "urllib3 is using URLFetch on Google App Engine sandbox instead "
-            "of sockets. To use sockets directly instead of URLFetch see "
-            "https://urllib3.readthedocs.io/en/latest/reference/urllib3.contrib.html.",
-            AppEnginePlatformWarning)
-
-        RequestMethods.__init__(self, headers)
-        self.validate_certificate = validate_certificate
-        self.urlfetch_retries = urlfetch_retries
-
-        self.retries = retries or Retry.DEFAULT
-
-    def __enter__(self):
-        return self
-
-    def __exit__(self, exc_type, exc_val, exc_tb):
-        # Return False to re-raise any potential exceptions
-        return False
-
-    def urlopen(self, method, url, body=None, headers=None,
-                retries=None, redirect=True, timeout=Timeout.DEFAULT_TIMEOUT,
-                **response_kw):
-
-        retries = self._get_retries(retries, redirect)
-
-        try:
-            follow_redirects = (
-                    redirect and
-                    retries.redirect != 0 and
-                    retries.total)
-            response = urlfetch.fetch(
-                url,
-                payload=body,
-                method=method,
-                headers=headers or {},
-                allow_truncated=False,
-                follow_redirects=self.urlfetch_retries and follow_redirects,
-                deadline=self._get_absolute_timeout(timeout),
-                validate_certificate=self.validate_certificate,
-            )
-        except urlfetch.DeadlineExceededError as e:
-            raise TimeoutError(self, e)
-
-        except urlfetch.InvalidURLError as e:
-            if 'too large' in str(e):
-                raise AppEnginePlatformError(
-                    "URLFetch request too large, URLFetch only "
-                    "supports requests up to 10mb in size.", e)
-            raise ProtocolError(e)
-
-        except urlfetch.DownloadError as e:
-            if 'Too many redirects' in str(e):
-                raise MaxRetryError(self, url, reason=e)
-            raise ProtocolError(e)
-
-        except urlfetch.ResponseTooLargeError as e:
-            raise AppEnginePlatformError(
-                "URLFetch response too large, URLFetch only supports"
-                "responses up to 32mb in size.", e)
-
-        except urlfetch.SSLCertificateError as e:
-            raise SSLError(e)
-
-        except urlfetch.InvalidMethodError as e:
-            raise AppEnginePlatformError(
-                "URLFetch does not support method: %s" % method, e)
-
-        http_response = self._urlfetch_response_to_http_response(
-            response, retries=retries, **response_kw)
-
-        # Handle redirect?
-        redirect_location = redirect and http_response.get_redirect_location()
-        if redirect_location:
-            # Check for redirect response
-            if (self.urlfetch_retries and retries.raise_on_redirect):
-                raise MaxRetryError(self, url, "too many redirects")
-            else:
-                if http_response.status == 303:
-                    method = 'GET'
-
-                try:
-                    retries = retries.increment(method, url, response=http_response, _pool=self)
-                except MaxRetryError:
-                    if retries.raise_on_redirect:
-                        raise MaxRetryError(self, url, "too many redirects")
-                    return http_response
-
-                retries.sleep_for_retry(http_response)
-                log.debug("Redirecting %s -> %s", url, redirect_location)
-                redirect_url = urljoin(url, redirect_location)
-                return self.urlopen(
-                    method, redirect_url, body, headers,
-                    retries=retries, redirect=redirect,
-                    timeout=timeout, **response_kw)
-
-        # Check if we should retry the HTTP response.
-        has_retry_after = bool(http_response.getheader('Retry-After'))
-        if retries.is_retry(method, http_response.status, has_retry_after):
-            retries = retries.increment(
-                method, url, response=http_response, _pool=self)
-            log.debug("Retry: %s", url)
-            retries.sleep(http_response)
-            return self.urlopen(
-                method, url,
-                body=body, headers=headers,
-                retries=retries, redirect=redirect,
-                timeout=timeout, **response_kw)
-
-        return http_response
-
-    def _urlfetch_response_to_http_response(self, urlfetch_resp, **response_kw):
-
-        if is_prod_appengine():
-            # Production GAE handles deflate encoding automatically, but does
-            # not remove the encoding header.
-            content_encoding = urlfetch_resp.headers.get('content-encoding')
-
-            if content_encoding == 'deflate':
-                del urlfetch_resp.headers['content-encoding']
-
-        transfer_encoding = urlfetch_resp.headers.get('transfer-encoding')
-        # We have a full response's content,
-        # so let's make sure we don't report ourselves as chunked data.
-        if transfer_encoding == 'chunked':
-            encodings = transfer_encoding.split(",")
-            encodings.remove('chunked')
-            urlfetch_resp.headers['transfer-encoding'] = ','.join(encodings)
-
-        return HTTPResponse(
-            # In order for decoding to work, we must present the content as
-            # a file-like object.
-            body=BytesIO(urlfetch_resp.content),
-            headers=urlfetch_resp.headers,
-            status=urlfetch_resp.status_code,
-            **response_kw
-        )
-
-    def _get_absolute_timeout(self, timeout):
-        if timeout is Timeout.DEFAULT_TIMEOUT:
-            return None  # Defer to URLFetch's default.
-        if isinstance(timeout, Timeout):
-            if timeout._read is not None or timeout._connect is not None:
-                warnings.warn(
-                    "URLFetch does not support granular timeout settings, "
-                    "reverting to total or default URLFetch timeout.",
-                    AppEnginePlatformWarning)
-            return timeout.total
-        return timeout
-
-    def _get_retries(self, retries, redirect):
-        if not isinstance(retries, Retry):
-            retries = Retry.from_int(
-                retries, redirect=redirect, default=self.retries)
-
-        if retries.connect or retries.read or retries.redirect:
-            warnings.warn(
-                "URLFetch only supports total retries and does not "
-                "recognize connect, read, or redirect retry parameters.",
-                AppEnginePlatformWarning)
-
-        return retries
-
-
-def is_appengine():
-    return (is_local_appengine() or
-            is_prod_appengine() or
-            is_prod_appengine_mvms())
-
-
-def is_appengine_sandbox():
-    return is_appengine() and not is_prod_appengine_mvms()
-
-
-def is_local_appengine():
-    return ('APPENGINE_RUNTIME' in os.environ and
-            'Development/' in os.environ['SERVER_SOFTWARE'])
-
-
-def is_prod_appengine():
-    return ('APPENGINE_RUNTIME' in os.environ and
-            'Google App Engine/' in os.environ['SERVER_SOFTWARE'] and
-            not is_prod_appengine_mvms())
-
-
-def is_prod_appengine_mvms():
-    return os.environ.get('GAE_VM', False) == 'true'
diff --git a/collectors/python.d.plugin/python_modules/urllib3/contrib/ntlmpool.py b/collectors/python.d.plugin/python_modules/urllib3/contrib/ntlmpool.py
deleted file mode 100644
index 3f8c9ebf5..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/contrib/ntlmpool.py
+++ /dev/null
@@ -1,113 +0,0 @@
-# SPDX-License-Identifier: MIT
-"""
-NTLM authenticating pool, contributed by erikcederstran
-
-Issue #10, see: http://code.google.com/p/urllib3/issues/detail?id=10
-"""
-from __future__ import absolute_import
-
-from logging import getLogger
-from ntlm import ntlm
-
-from .. import HTTPSConnectionPool
-from ..packages.six.moves.http_client import HTTPSConnection
-
-
-log = getLogger(__name__)
-
-
-class NTLMConnectionPool(HTTPSConnectionPool):
-    """
-    Implements an NTLM authentication version of an urllib3 connection pool
-    """
-
-    scheme = 'https'
-
-    def __init__(self, user, pw, authurl, *args, **kwargs):
-        """
-        authurl is a random URL on the server that is protected by NTLM.
-        user is the Windows user, probably in the DOMAIN\\username format.
-        pw is the password for the user.
-        """
-        super(NTLMConnectionPool, self).__init__(*args, **kwargs)
-        self.authurl = authurl
-        self.rawuser = user
-        user_parts = user.split('\\', 1)
-        self.domain = user_parts[0].upper()
-        self.user = user_parts[1]
-        self.pw = pw
-
-    def _new_conn(self):
-        # Performs the NTLM handshake that secures the connection. The socket
-        # must be kept open while requests are performed.
-        self.num_connections += 1
-        log.debug('Starting NTLM HTTPS connection no. %d: https://%s%s',
-                  self.num_connections, self.host, self.authurl)
-
-        headers = {}
-        headers['Connection'] = 'Keep-Alive'
-        req_header = 'Authorization'
-        resp_header = 'www-authenticate'
-
-        conn = HTTPSConnection(host=self.host, port=self.port)
-
-        # Send negotiation message
-        headers[req_header] = (
-            'NTLM %s' % ntlm.create_NTLM_NEGOTIATE_MESSAGE(self.rawuser))
-        log.debug('Request headers: %s', headers)
-        conn.request('GET', self.authurl, None, headers)
-        res = conn.getresponse()
-        reshdr = dict(res.getheaders())
-        log.debug('Response status: %s %s', res.status, res.reason)
-        log.debug('Response headers: %s', reshdr)
-        log.debug('Response data: %s [...]', res.read(100))
-
-        # Remove the reference to the socket, so that it can not be closed by
-        # the response object (we want to keep the socket open)
-        res.fp = None
-
-        # Server should respond with a challenge message
-        auth_header_values = reshdr[resp_header].split(', ')
-        auth_header_value = None
-        for s in auth_header_values:
-            if s[:5] == 'NTLM ':
-                auth_header_value = s[5:]
-        if auth_header_value is None:
-            raise Exception('Unexpected %s response header: %s' %
-                            (resp_header, reshdr[resp_header]))
-
-        # Send authentication message
-        ServerChallenge, NegotiateFlags = \
-            ntlm.parse_NTLM_CHALLENGE_MESSAGE(auth_header_value)
-        auth_msg = ntlm.create_NTLM_AUTHENTICATE_MESSAGE(ServerChallenge,
-                                                         self.user,
-                                                         self.domain,
-                                                         self.pw,
-                                                         NegotiateFlags)
-        headers[req_header] = 'NTLM %s' % auth_msg
-        log.debug('Request headers: %s', headers)
-        conn.request('GET', self.authurl, None, headers)
-        res = conn.getresponse()
-        log.debug('Response status: %s %s', res.status, res.reason)
-        log.debug('Response headers: %s', dict(res.getheaders()))
-        log.debug('Response data: %s [...]', res.read()[:100])
-        if res.status != 200:
-            if res.status == 401:
-                raise Exception('Server rejected request: wrong '
-                                'username or password')
-            raise Exception('Wrong server response: %s %s' %
-                            (res.status, res.reason))
-
-        res.fp = None
-        log.debug('Connection established')
-        return conn
-
-    def urlopen(self, method, url, body=None, headers=None, retries=3,
-                redirect=True, assert_same_host=True):
-        if headers is None:
-            headers = {}
-        headers['Connection'] = 'Keep-Alive'
-        return super(NTLMConnectionPool, self).urlopen(method, url, body,
-                                                       headers, retries,
-                                                       redirect,
-                                                       assert_same_host)
diff --git a/collectors/python.d.plugin/python_modules/urllib3/contrib/pyopenssl.py b/collectors/python.d.plugin/python_modules/urllib3/contrib/pyopenssl.py
deleted file mode 100644
index 8d373507d..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/contrib/pyopenssl.py
+++ /dev/null
@@ -1,458 +0,0 @@
-# SPDX-License-Identifier: MIT
-"""
-SSL with SNI_-support for Python 2. Follow these instructions if you would
-like to verify SSL certificates in Python 2. Note, the default libraries do
-*not* do certificate checking; you need to do additional work to validate
-certificates yourself.
-
-This needs the following packages installed:
-
-* pyOpenSSL (tested with 16.0.0)
-* cryptography (minimum 1.3.4, from pyopenssl)
-* idna (minimum 2.0, from cryptography)
-
-However, pyopenssl depends on cryptography, which depends on idna, so while we
-use all three directly here we end up having relatively few packages required.
-
-You can install them with the following command:
-
-    pip install pyopenssl cryptography idna
-
-To activate certificate checking, call
-:func:`~urllib3.contrib.pyopenssl.inject_into_urllib3` from your Python code
-before you begin making HTTP requests. This can be done in a ``sitecustomize``
-module, or at any other time before your application begins using ``urllib3``,
-like this::
-
-    try:
-        import urllib3.contrib.pyopenssl
-        urllib3.contrib.pyopenssl.inject_into_urllib3()
-    except ImportError:
-        pass
-
-Now you can use :mod:`urllib3` as you normally would, and it will support SNI
-when the required modules are installed.
-
-Activating this module also has the positive side effect of disabling SSL/TLS
-compression in Python 2 (see `CRIME attack`_).
-
-If you want to configure the default list of supported cipher suites, you can
-set the ``urllib3.contrib.pyopenssl.DEFAULT_SSL_CIPHER_LIST`` variable.
-
-.. _sni: https://en.wikipedia.org/wiki/Server_Name_Indication
-.. _crime attack: https://en.wikipedia.org/wiki/CRIME_(security_exploit)
-"""
-from __future__ import absolute_import
-
-import OpenSSL.SSL
-from cryptography import x509
-from cryptography.hazmat.backends.openssl import backend as openssl_backend
-from cryptography.hazmat.backends.openssl.x509 import _Certificate
-
-from socket import timeout, error as SocketError
-from io import BytesIO
-
-try:  # Platform-specific: Python 2
-    from socket import _fileobject
-except ImportError:  # Platform-specific: Python 3
-    _fileobject = None
-    from ..packages.backports.makefile import backport_makefile
-
-import logging
-import ssl
-
-try:
-    import six
-except ImportError:
-    from ..packages import six
-
-import sys
-
-from .. import util
-
-__all__ = ['inject_into_urllib3', 'extract_from_urllib3']
-
-# SNI always works.
-HAS_SNI = True
-
-# Map from urllib3 to PyOpenSSL compatible parameter-values.
-_openssl_versions = {
-    ssl.PROTOCOL_SSLv23: OpenSSL.SSL.SSLv23_METHOD,
-    ssl.PROTOCOL_TLSv1: OpenSSL.SSL.TLSv1_METHOD,
-}
-
-if hasattr(ssl, 'PROTOCOL_TLSv1_1') and hasattr(OpenSSL.SSL, 'TLSv1_1_METHOD'):
-    _openssl_versions[ssl.PROTOCOL_TLSv1_1] = OpenSSL.SSL.TLSv1_1_METHOD
-
-if hasattr(ssl, 'PROTOCOL_TLSv1_2') and hasattr(OpenSSL.SSL, 'TLSv1_2_METHOD'):
-    _openssl_versions[ssl.PROTOCOL_TLSv1_2] = OpenSSL.SSL.TLSv1_2_METHOD
-
-try:
-    _openssl_versions.update({ssl.PROTOCOL_SSLv3: OpenSSL.SSL.SSLv3_METHOD})
-except AttributeError:
-    pass
-
-_stdlib_to_openssl_verify = {
-    ssl.CERT_NONE: OpenSSL.SSL.VERIFY_NONE,
-    ssl.CERT_OPTIONAL: OpenSSL.SSL.VERIFY_PEER,
-    ssl.CERT_REQUIRED:
-        OpenSSL.SSL.VERIFY_PEER + OpenSSL.SSL.VERIFY_FAIL_IF_NO_PEER_CERT,
-}
-_openssl_to_stdlib_verify = dict(
-    (v, k) for k, v in _stdlib_to_openssl_verify.items()
-)
-
-# OpenSSL will only write 16K at a time
-SSL_WRITE_BLOCKSIZE = 16384
-
-orig_util_HAS_SNI = util.HAS_SNI
-orig_util_SSLContext = util.ssl_.SSLContext
-
-
-log = logging.getLogger(__name__)
-
-
-def inject_into_urllib3():
-    'Monkey-patch urllib3 with PyOpenSSL-backed SSL-support.'
-
-    _validate_dependencies_met()
-
-    util.ssl_.SSLContext = PyOpenSSLContext
-    util.HAS_SNI = HAS_SNI
-    util.ssl_.HAS_SNI = HAS_SNI
-    util.IS_PYOPENSSL = True
-    util.ssl_.IS_PYOPENSSL = True
-
-
-def extract_from_urllib3():
-    'Undo monkey-patching by :func:`inject_into_urllib3`.'
-
-    util.ssl_.SSLContext = orig_util_SSLContext
-    util.HAS_SNI = orig_util_HAS_SNI
-    util.ssl_.HAS_SNI = orig_util_HAS_SNI
-    util.IS_PYOPENSSL = False
-    util.ssl_.IS_PYOPENSSL = False
-
-
-def _validate_dependencies_met():
-    """
-    Verifies that PyOpenSSL's package-level dependencies have been met.
-    Throws `ImportError` if they are not met.
-    """
-    # Method added in `cryptography==1.1`; not available in older versions
-    from cryptography.x509.extensions import Extensions
-    if getattr(Extensions, "get_extension_for_class", None) is None:
-        raise ImportError("'cryptography' module missing required functionality.  "
-                          "Try upgrading to v1.3.4 or newer.")
-
-    # pyOpenSSL 0.14 and above use cryptography for OpenSSL bindings. The _x509
-    # attribute is only present on those versions.
-    from OpenSSL.crypto import X509
-    x509 = X509()
-    if getattr(x509, "_x509", None) is None:
-        raise ImportError("'pyOpenSSL' module missing required functionality. "
-                          "Try upgrading to v0.14 or newer.")
-
-
-def _dnsname_to_stdlib(name):
-    """
-    Converts a dNSName SubjectAlternativeName field to the form used by the
-    standard library on the given Python version.
-
-    Cryptography produces a dNSName as a unicode string that was idna-decoded
-    from ASCII bytes. We need to idna-encode that string to get it back, and
-    then on Python 3 we also need to convert to unicode via UTF-8 (the stdlib
-    uses PyUnicode_FromStringAndSize on it, which decodes via UTF-8).
-    """
-    def idna_encode(name):
-        """
-        Borrowed wholesale from the Python Cryptography Project. It turns out
-        that we can't just safely call `idna.encode`: it can explode for
-        wildcard names. This avoids that problem.
-        """
-        import idna
-
-        for prefix in [u'*.', u'.']:
-            if name.startswith(prefix):
-                name = name[len(prefix):]
-                return prefix.encode('ascii') + idna.encode(name)
-        return idna.encode(name)
-
-    name = idna_encode(name)
-    if sys.version_info >= (3, 0):
-        name = name.decode('utf-8')
-    return name
-
-
-def get_subj_alt_name(peer_cert):
-    """
-    Given an PyOpenSSL certificate, provides all the subject alternative names.
-    """
-    # Pass the cert to cryptography, which has much better APIs for this.
-    # This is technically using private APIs, but should work across all
-    # relevant versions until PyOpenSSL gets something proper for this.
-    cert = _Certificate(openssl_backend, peer_cert._x509)
-
-    # We want to find the SAN extension. Ask Cryptography to locate it (it's
-    # faster than looping in Python)
-    try:
-        ext = cert.extensions.get_extension_for_class(
-            x509.SubjectAlternativeName
-        ).value
-    except x509.ExtensionNotFound:
-        # No such extension, return the empty list.
-        return []
-    except (x509.DuplicateExtension, x509.UnsupportedExtension,
-            x509.UnsupportedGeneralNameType, UnicodeError) as e:
-        # A problem has been found with the quality of the certificate. Assume
-        # no SAN field is present.
-        log.warning(
-            "A problem was encountered with the certificate that prevented "
-            "urllib3 from finding the SubjectAlternativeName field. This can "
-            "affect certificate validation. The error was %s",
-            e,
-        )
-        return []
-
-    # We want to return dNSName and iPAddress fields. We need to cast the IPs
-    # back to strings because the match_hostname function wants them as
-    # strings.
-    # Sadly the DNS names need to be idna encoded and then, on Python 3, UTF-8
-    # decoded. This is pretty frustrating, but that's what the standard library
-    # does with certificates, and so we need to attempt to do the same.
-    names = [
-        ('DNS', _dnsname_to_stdlib(name))
-        for name in ext.get_values_for_type(x509.DNSName)
-    ]
-    names.extend(
-        ('IP Address', str(name))
-        for name in ext.get_values_for_type(x509.IPAddress)
-    )
-
-    return names
-
-
-class WrappedSocket(object):
-    '''API-compatibility wrapper for Python OpenSSL's Connection-class.
-
-    Note: _makefile_refs, _drop() and _reuse() are needed for the garbage
-    collector of pypy.
-    '''
-
-    def __init__(self, connection, socket, suppress_ragged_eofs=True):
-        self.connection = connection
-        self.socket = socket
-        self.suppress_ragged_eofs = suppress_ragged_eofs
-        self._makefile_refs = 0
-        self._closed = False
-
-    def fileno(self):
-        return self.socket.fileno()
-
-    # Copy-pasted from Python 3.5 source code
-    def _decref_socketios(self):
-        if self._makefile_refs > 0:
-            self._makefile_refs -= 1
-        if self._closed:
-            self.close()
-
-    def recv(self, *args, **kwargs):
-        try:
-            data = self.connection.recv(*args, **kwargs)
-        except OpenSSL.SSL.SysCallError as e:
-            if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
-                return b''
-            else:
-                raise SocketError(str(e))
-        except OpenSSL.SSL.ZeroReturnError as e:
-            if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
-                return b''
-            else:
-                raise
-        except OpenSSL.SSL.WantReadError:
-            rd = util.wait_for_read(self.socket, self.socket.gettimeout())
-            if not rd:
-                raise timeout('The read operation timed out')
-            else:
-                return self.recv(*args, **kwargs)
-        else:
-            return data
-
-    def recv_into(self, *args, **kwargs):
-        try:
-            return self.connection.recv_into(*args, **kwargs)
-        except OpenSSL.SSL.SysCallError as e:
-            if self.suppress_ragged_eofs and e.args == (-1, 'Unexpected EOF'):
-                return 0
-            else:
-                raise SocketError(str(e))
-        except OpenSSL.SSL.ZeroReturnError as e:
-            if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
-                return 0
-            else:
-                raise
-        except OpenSSL.SSL.WantReadError:
-            rd = util.wait_for_read(self.socket, self.socket.gettimeout())
-            if not rd:
-                raise timeout('The read operation timed out')
-            else:
-                return self.recv_into(*args, **kwargs)
-
-    def settimeout(self, timeout):
-        return self.socket.settimeout(timeout)
-
-    def _send_until_done(self, data):
-        while True:
-            try:
-                return self.connection.send(data)
-            except OpenSSL.SSL.WantWriteError:
-                wr = util.wait_for_write(self.socket, self.socket.gettimeout())
-                if not wr:
-                    raise timeout()
-                continue
-            except OpenSSL.SSL.SysCallError as e:
-                raise SocketError(str(e))
-
-    def sendall(self, data):
-        total_sent = 0
-        while total_sent < len(data):
-            sent = self._send_until_done(data[total_sent:total_sent + SSL_WRITE_BLOCKSIZE])
-            total_sent += sent
-
-    def shutdown(self):
-        # FIXME rethrow compatible exceptions should we ever use this
-        self.connection.shutdown()
-
-    def close(self):
-        if self._makefile_refs < 1:
-            try:
-                self._closed = True
-                return self.connection.close()
-            except OpenSSL.SSL.Error:
-                return
-        else:
-            self._makefile_refs -= 1
-
-    def getpeercert(self, binary_form=False):
-        x509 = self.connection.get_peer_certificate()
-
-        if not x509:
-            return x509
-
-        if binary_form:
-            return OpenSSL.crypto.dump_certificate(
-                OpenSSL.crypto.FILETYPE_ASN1,
-                x509)
-
-        return {
-            'subject': (
-                (('commonName', x509.get_subject().CN),),
-            ),
-            'subjectAltName': get_subj_alt_name(x509)
-        }
-
-    def _reuse(self):
-        self._makefile_refs += 1
-
-    def _drop(self):
-        if self._makefile_refs < 1:
-            self.close()
-        else:
-            self._makefile_refs -= 1
-
-
-if _fileobject:  # Platform-specific: Python 2
-    def makefile(self, mode, bufsize=-1):
-        self._makefile_refs += 1
-        return _fileobject(self, mode, bufsize, close=True)
-else:  # Platform-specific: Python 3
-    makefile = backport_makefile
-
-WrappedSocket.makefile = makefile
-
-
-class PyOpenSSLContext(object):
-    """
-    I am a wrapper class for the PyOpenSSL ``Context`` object. I am responsible
-    for translating the interface of the standard library ``SSLContext`` object
-    to calls into PyOpenSSL.
-    """
-    def __init__(self, protocol):
-        self.protocol = _openssl_versions[protocol]
-        self._ctx = OpenSSL.SSL.Context(self.protocol)
-        self._options = 0
-        self.check_hostname = False
-
-    @property
-    def options(self):
-        return self._options
-
-    @options.setter
-    def options(self, value):
-        self._options = value
-        self._ctx.set_options(value)
-
-    @property
-    def verify_mode(self):
-        return _openssl_to_stdlib_verify[self._ctx.get_verify_mode()]
-
-    @verify_mode.setter
-    def verify_mode(self, value):
-        self._ctx.set_verify(
-            _stdlib_to_openssl_verify[value],
-            _verify_callback
-        )
-
-    def set_default_verify_paths(self):
-        self._ctx.set_default_verify_paths()
-
-    def set_ciphers(self, ciphers):
-        if isinstance(ciphers, six.text_type):
-            ciphers = ciphers.encode('utf-8')
-        self._ctx.set_cipher_list(ciphers)
-
-    def load_verify_locations(self, cafile=None, capath=None, cadata=None):
-        if cafile is not None:
-            cafile = cafile.encode('utf-8')
-        if capath is not None:
-            capath = capath.encode('utf-8')
-        self._ctx.load_verify_locations(cafile, capath)
-        if cadata is not None:
-            self._ctx.load_verify_locations(BytesIO(cadata))
-
-    def load_cert_chain(self, certfile, keyfile=None, password=None):
-        self._ctx.use_certificate_file(certfile)
-        if password is not None:
-            self._ctx.set_passwd_cb(lambda max_length, prompt_twice, userdata: password)
-        self._ctx.use_privatekey_file(keyfile or certfile)
-
-    def wrap_socket(self, sock, server_side=False,
-                    do_handshake_on_connect=True, suppress_ragged_eofs=True,
-                    server_hostname=None):
-        cnx = OpenSSL.SSL.Connection(self._ctx, sock)
-
-        if isinstance(server_hostname, six.text_type):  # Platform-specific: Python 3
-            server_hostname = server_hostname.encode('utf-8')
-
-        if server_hostname is not None:
-            cnx.set_tlsext_host_name(server_hostname)
-
-        cnx.set_connect_state()
-
-        while True:
-            try:
-                cnx.do_handshake()
-            except OpenSSL.SSL.WantReadError:
-                rd = util.wait_for_read(sock, sock.gettimeout())
-                if not rd:
-                    raise timeout('select timed out')
-                continue
-            except OpenSSL.SSL.Error as e:
-                raise ssl.SSLError('bad handshake: %r' % e)
-            break
-
-        return WrappedSocket(cnx, sock)
-
-
-def _verify_callback(cnx, x509, err_no, err_depth, return_code):
-    return err_no == 0
diff --git a/collectors/python.d.plugin/python_modules/urllib3/contrib/securetransport.py b/collectors/python.d.plugin/python_modules/urllib3/contrib/securetransport.py
deleted file mode 100644
index fcc30118c..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/contrib/securetransport.py
+++ /dev/null
@@ -1,808 +0,0 @@
-# SPDX-License-Identifier: MIT
-"""
-SecureTranport support for urllib3 via ctypes.
-
-This makes platform-native TLS available to urllib3 users on macOS without the
-use of a compiler. This is an important feature because the Python Package
-Index is moving to become a TLSv1.2-or-higher server, and the default OpenSSL
-that ships with macOS is not capable of doing TLSv1.2. The only way to resolve
-this is to give macOS users an alternative solution to the problem, and that
-solution is to use SecureTransport.
-
-We use ctypes here because this solution must not require a compiler. That's
-because pip is not allowed to require a compiler either.
-
-This is not intended to be a seriously long-term solution to this problem.
-The hope is that PEP 543 will eventually solve this issue for us, at which
-point we can retire this contrib module. But in the short term, we need to
-solve the impending tire fire that is Python on Mac without this kind of
-contrib module. So...here we are.
-
-To use this module, simply import and inject it::
-
-    import urllib3.contrib.securetransport
-    urllib3.contrib.securetransport.inject_into_urllib3()
-
-Happy TLSing!
-"""
-from __future__ import absolute_import
-
-import contextlib
-import ctypes
-import errno
-import os.path
-import shutil
-import socket
-import ssl
-import threading
-import weakref
-
-from .. import util
-from ._securetransport.bindings import (
-    Security, SecurityConst, CoreFoundation
-)
-from ._securetransport.low_level import (
-    _assert_no_error, _cert_array_from_pem, _temporary_keychain,
-    _load_client_cert_chain
-)
-
-try:  # Platform-specific: Python 2
-    from socket import _fileobject
-except ImportError:  # Platform-specific: Python 3
-    _fileobject = None
-    from ..packages.backports.makefile import backport_makefile
-
-try:
-    memoryview(b'')
-except NameError:
-    raise ImportError("SecureTransport only works on Pythons with memoryview")
-
-__all__ = ['inject_into_urllib3', 'extract_from_urllib3']
-
-# SNI always works
-HAS_SNI = True
-
-orig_util_HAS_SNI = util.HAS_SNI
-orig_util_SSLContext = util.ssl_.SSLContext
-
-# This dictionary is used by the read callback to obtain a handle to the
-# calling wrapped socket. This is a pretty silly approach, but for now it'll
-# do. I feel like I should be able to smuggle a handle to the wrapped socket
-# directly in the SSLConnectionRef, but for now this approach will work I
-# guess.
-#
-# We need to lock around this structure for inserts, but we don't do it for
-# reads/writes in the callbacks. The reasoning here goes as follows:
-#
-#    1. It is not possible to call into the callbacks before the dictionary is
-#       populated, so once in the callback the id must be in the dictionary.
-#    2. The callbacks don't mutate the dictionary, they only read from it, and
-#       so cannot conflict with any of the insertions.
-#
-# This is good: if we had to lock in the callbacks we'd drastically slow down
-# the performance of this code.
-_connection_refs = weakref.WeakValueDictionary()
-_connection_ref_lock = threading.Lock()
-
-# Limit writes to 16kB. This is OpenSSL's limit, but we'll cargo-cult it over
-# for no better reason than we need *a* limit, and this one is right there.
-SSL_WRITE_BLOCKSIZE = 16384
-
-# This is our equivalent of util.ssl_.DEFAULT_CIPHERS, but expanded out to
-# individual cipher suites. We need to do this becuase this is how
-# SecureTransport wants them.
-CIPHER_SUITES = [
-    SecurityConst.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
-    SecurityConst.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
-    SecurityConst.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
-    SecurityConst.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
-    SecurityConst.TLS_DHE_DSS_WITH_AES_256_GCM_SHA384,
-    SecurityConst.TLS_DHE_RSA_WITH_AES_256_GCM_SHA384,
-    SecurityConst.TLS_DHE_DSS_WITH_AES_128_GCM_SHA256,
-    SecurityConst.TLS_DHE_RSA_WITH_AES_128_GCM_SHA256,
-    SecurityConst.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,
-    SecurityConst.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384,
-    SecurityConst.TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
-    SecurityConst.TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA,
-    SecurityConst.TLS_DHE_RSA_WITH_AES_256_CBC_SHA256,
-    SecurityConst.TLS_DHE_DSS_WITH_AES_256_CBC_SHA256,
-    SecurityConst.TLS_DHE_RSA_WITH_AES_256_CBC_SHA,
-    SecurityConst.TLS_DHE_DSS_WITH_AES_256_CBC_SHA,
-    SecurityConst.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
-    SecurityConst.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
-    SecurityConst.TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
-    SecurityConst.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
-    SecurityConst.TLS_DHE_RSA_WITH_AES_128_CBC_SHA256,
-    SecurityConst.TLS_DHE_DSS_WITH_AES_128_CBC_SHA256,
-    SecurityConst.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
-    SecurityConst.TLS_DHE_DSS_WITH_AES_128_CBC_SHA,
-    SecurityConst.TLS_RSA_WITH_AES_256_GCM_SHA384,
-    SecurityConst.TLS_RSA_WITH_AES_128_GCM_SHA256,
-    SecurityConst.TLS_RSA_WITH_AES_256_CBC_SHA256,
-    SecurityConst.TLS_RSA_WITH_AES_128_CBC_SHA256,
-    SecurityConst.TLS_RSA_WITH_AES_256_CBC_SHA,
-    SecurityConst.TLS_RSA_WITH_AES_128_CBC_SHA,
-]
-
-# Basically this is simple: for PROTOCOL_SSLv23 we turn it into a low of
-# TLSv1 and a high of TLSv1.2. For everything else, we pin to that version.
-_protocol_to_min_max = {
-    ssl.PROTOCOL_SSLv23: (SecurityConst.kTLSProtocol1, SecurityConst.kTLSProtocol12),
-}
-
-if hasattr(ssl, "PROTOCOL_SSLv2"):
-    _protocol_to_min_max[ssl.PROTOCOL_SSLv2] = (
-        SecurityConst.kSSLProtocol2, SecurityConst.kSSLProtocol2
-    )
-if hasattr(ssl, "PROTOCOL_SSLv3"):
-    _protocol_to_min_max[ssl.PROTOCOL_SSLv3] = (
-        SecurityConst.kSSLProtocol3, SecurityConst.kSSLProtocol3
-    )
-if hasattr(ssl, "PROTOCOL_TLSv1"):
-    _protocol_to_min_max[ssl.PROTOCOL_TLSv1] = (
-        SecurityConst.kTLSProtocol1, SecurityConst.kTLSProtocol1
-    )
-if hasattr(ssl, "PROTOCOL_TLSv1_1"):
-    _protocol_to_min_max[ssl.PROTOCOL_TLSv1_1] = (
-        SecurityConst.kTLSProtocol11, SecurityConst.kTLSProtocol11
-    )
-if hasattr(ssl, "PROTOCOL_TLSv1_2"):
-    _protocol_to_min_max[ssl.PROTOCOL_TLSv1_2] = (
-        SecurityConst.kTLSProtocol12, SecurityConst.kTLSProtocol12
-    )
-if hasattr(ssl, "PROTOCOL_TLS"):
-    _protocol_to_min_max[ssl.PROTOCOL_TLS] = _protocol_to_min_max[ssl.PROTOCOL_SSLv23]
-
-
-def inject_into_urllib3():
-    """
-    Monkey-patch urllib3 with SecureTransport-backed SSL-support.
-    """
-    util.ssl_.SSLContext = SecureTransportContext
-    util.HAS_SNI = HAS_SNI
-    util.ssl_.HAS_SNI = HAS_SNI
-    util.IS_SECURETRANSPORT = True
-    util.ssl_.IS_SECURETRANSPORT = True
-
-
-def extract_from_urllib3():
-    """
-    Undo monkey-patching by :func:`inject_into_urllib3`.
-    """
-    util.ssl_.SSLContext = orig_util_SSLContext
-    util.HAS_SNI = orig_util_HAS_SNI
-    util.ssl_.HAS_SNI = orig_util_HAS_SNI
-    util.IS_SECURETRANSPORT = False
-    util.ssl_.IS_SECURETRANSPORT = False
-
-
-def _read_callback(connection_id, data_buffer, data_length_pointer):
-    """
-    SecureTransport read callback. This is called by ST to request that data
-    be returned from the socket.
-    """
-    wrapped_socket = None
-    try:
-        wrapped_socket = _connection_refs.get(connection_id)
-        if wrapped_socket is None:
-            return SecurityConst.errSSLInternal
-        base_socket = wrapped_socket.socket
-
-        requested_length = data_length_pointer[0]
-
-        timeout = wrapped_socket.gettimeout()
-        error = None
-        read_count = 0
-        buffer = (ctypes.c_char * requested_length).from_address(data_buffer)
-        buffer_view = memoryview(buffer)
-
-        try:
-            while read_count < requested_length:
-                if timeout is None or timeout >= 0:
-                    readables = util.wait_for_read([base_socket], timeout)
-                    if not readables:
-                        raise socket.error(errno.EAGAIN, 'timed out')
-
-                # We need to tell ctypes that we have a buffer that can be
-                # written to. Upsettingly, we do that like this:
-                chunk_size = base_socket.recv_into(
-                    buffer_view[read_count:requested_length]
-                )
-                read_count += chunk_size
-                if not chunk_size:
-                    if not read_count:
-                        return SecurityConst.errSSLClosedGraceful
-                    break
-        except (socket.error) as e:
-            error = e.errno
-
-            if error is not None and error != errno.EAGAIN:
-                if error == errno.ECONNRESET:
-                    return SecurityConst.errSSLClosedAbort
-                raise
-
-        data_length_pointer[0] = read_count
-
-        if read_count != requested_length:
-            return SecurityConst.errSSLWouldBlock
-
-        return 0
-    except Exception as e:
-        if wrapped_socket is not None:
-            wrapped_socket._exception = e
-        return SecurityConst.errSSLInternal
-
-
-def _write_callback(connection_id, data_buffer, data_length_pointer):
-    """
-    SecureTransport write callback. This is called by ST to request that data
-    actually be sent on the network.
-    """
-    wrapped_socket = None
-    try:
-        wrapped_socket = _connection_refs.get(connection_id)
-        if wrapped_socket is None:
-            return SecurityConst.errSSLInternal
-        base_socket = wrapped_socket.socket
-
-        bytes_to_write = data_length_pointer[0]
-        data = ctypes.string_at(data_buffer, bytes_to_write)
-
-        timeout = wrapped_socket.gettimeout()
-        error = None
-        sent = 0
-
-        try:
-            while sent < bytes_to_write:
-                if timeout is None or timeout >= 0:
-                    writables = util.wait_for_write([base_socket], timeout)
-                    if not writables:
-                        raise socket.error(errno.EAGAIN, 'timed out')
-                chunk_sent = base_socket.send(data)
-                sent += chunk_sent
-
-                # This has some needless copying here, but I'm not sure there's
-                # much value in optimising this data path.
-                data = data[chunk_sent:]
-        except (socket.error) as e:
-            error = e.errno
-
-            if error is not None and error != errno.EAGAIN:
-                if error == errno.ECONNRESET:
-                    return SecurityConst.errSSLClosedAbort
-                raise
-
-        data_length_pointer[0] = sent
-        if sent != bytes_to_write:
-            return SecurityConst.errSSLWouldBlock
-
-        return 0
-    except Exception as e:
-        if wrapped_socket is not None:
-            wrapped_socket._exception = e
-        return SecurityConst.errSSLInternal
-
-
-# We need to keep these two objects references alive: if they get GC'd while
-# in use then SecureTransport could attempt to call a function that is in freed
-# memory. That would be...uh...bad. Yeah, that's the word. Bad.
-_read_callback_pointer = Security.SSLReadFunc(_read_callback)
-_write_callback_pointer = Security.SSLWriteFunc(_write_callback)
-
-
-class WrappedSocket(object):
-    """
-    API-compatibility wrapper for Python's OpenSSL wrapped socket object.
-
-    Note: _makefile_refs, _drop(), and _reuse() are needed for the garbage
-    collector of PyPy.
-    """
-    def __init__(self, socket):
-        self.socket = socket
-        self.context = None
-        self._makefile_refs = 0
-        self._closed = False
-        self._exception = None
-        self._keychain = None
-        self._keychain_dir = None
-        self._client_cert_chain = None
-
-        # We save off the previously-configured timeout and then set it to
-        # zero. This is done because we use select and friends to handle the
-        # timeouts, but if we leave the timeout set on the lower socket then
-        # Python will "kindly" call select on that socket again for us. Avoid
-        # that by forcing the timeout to zero.
-        self._timeout = self.socket.gettimeout()
-        self.socket.settimeout(0)
-
-    @contextlib.contextmanager
-    def _raise_on_error(self):
-        """
-        A context manager that can be used to wrap calls that do I/O from
-        SecureTransport. If any of the I/O callbacks hit an exception, this
-        context manager will correctly propagate the exception after the fact.
-        This avoids silently swallowing those exceptions.
-
-        It also correctly forces the socket closed.
-        """
-        self._exception = None
-
-        # We explicitly don't catch around this yield because in the unlikely
-        # event that an exception was hit in the block we don't want to swallow
-        # it.
-        yield
-        if self._exception is not None:
-            exception, self._exception = self._exception, None
-            self.close()
-            raise exception
-
-    def _set_ciphers(self):
-        """
-        Sets up the allowed ciphers. By default this matches the set in
-        util.ssl_.DEFAULT_CIPHERS, at least as supported by macOS. This is done
-        custom and doesn't allow changing at this time, mostly because parsing
-        OpenSSL cipher strings is going to be a freaking nightmare.
-        """
-        ciphers = (Security.SSLCipherSuite * len(CIPHER_SUITES))(*CIPHER_SUITES)
-        result = Security.SSLSetEnabledCiphers(
-            self.context, ciphers, len(CIPHER_SUITES)
-        )
-        _assert_no_error(result)
-
-    def _custom_validate(self, verify, trust_bundle):
-        """
-        Called when we have set custom validation. We do this in two cases:
-        first, when cert validation is entirely disabled; and second, when
-        using a custom trust DB.
-        """
-        # If we disabled cert validation, just say: cool.
-        if not verify:
-            return
-
-        # We want data in memory, so load it up.
-        if os.path.isfile(trust_bundle):
-            with open(trust_bundle, 'rb') as f:
-                trust_bundle = f.read()
-
-        cert_array = None
-        trust = Security.SecTrustRef()
-
-        try:
-            # Get a CFArray that contains the certs we want.
-            cert_array = _cert_array_from_pem(trust_bundle)
-
-            # Ok, now the hard part. We want to get the SecTrustRef that ST has
-            # created for this connection, shove our CAs into it, tell ST to
-            # ignore everything else it knows, and then ask if it can build a
-            # chain. This is a buuuunch of code.
-            result = Security.SSLCopyPeerTrust(
-                self.context, ctypes.byref(trust)
-            )
-            _assert_no_error(result)
-            if not trust:
-                raise ssl.SSLError("Failed to copy trust reference")
-
-            result = Security.SecTrustSetAnchorCertificates(trust, cert_array)
-            _assert_no_error(result)
-
-            result = Security.SecTrustSetAnchorCertificatesOnly(trust, True)
-            _assert_no_error(result)
-
-            trust_result = Security.SecTrustResultType()
-            result = Security.SecTrustEvaluate(
-                trust, ctypes.byref(trust_result)
-            )
-            _assert_no_error(result)
-        finally:
-            if trust:
-                CoreFoundation.CFRelease(trust)
-
-            if cert_array is None:
-                CoreFoundation.CFRelease(cert_array)
-
-        # Ok, now we can look at what the result was.
-        successes = (
-            SecurityConst.kSecTrustResultUnspecified,
-            SecurityConst.kSecTrustResultProceed
-        )
-        if trust_result.value not in successes:
-            raise ssl.SSLError(
-                "certificate verify failed, error code: %d" %
-                trust_result.value
-            )
-
-    def handshake(self,
-                  server_hostname,
-                  verify,
-                  trust_bundle,
-                  min_version,
-                  max_version,
-                  client_cert,
-                  client_key,
-                  client_key_passphrase):
-        """
-        Actually performs the TLS handshake. This is run automatically by
-        wrapped socket, and shouldn't be needed in user code.
-        """
-        # First, we do the initial bits of connection setup. We need to create
-        # a context, set its I/O funcs, and set the connection reference.
-        self.context = Security.SSLCreateContext(
-            None, SecurityConst.kSSLClientSide, SecurityConst.kSSLStreamType
-        )
-        result = Security.SSLSetIOFuncs(
-            self.context, _read_callback_pointer, _write_callback_pointer
-        )
-        _assert_no_error(result)
-
-        # Here we need to compute the handle to use. We do this by taking the
-        # id of self modulo 2**31 - 1. If this is already in the dictionary, we
-        # just keep incrementing by one until we find a free space.
-        with _connection_ref_lock:
-            handle = id(self) % 2147483647
-            while handle in _connection_refs:
-                handle = (handle + 1) % 2147483647
-            _connection_refs[handle] = self
-
-        result = Security.SSLSetConnection(self.context, handle)
-        _assert_no_error(result)
-
-        # If we have a server hostname, we should set that too.
-        if server_hostname:
-            if not isinstance(server_hostname, bytes):
-                server_hostname = server_hostname.encode('utf-8')
-
-            result = Security.SSLSetPeerDomainName(
-                self.context, server_hostname, len(server_hostname)
-            )
-            _assert_no_error(result)
-
-        # Setup the ciphers.
-        self._set_ciphers()
-
-        # Set the minimum and maximum TLS versions.
-        result = Security.SSLSetProtocolVersionMin(self.context, min_version)
-        _assert_no_error(result)
-        result = Security.SSLSetProtocolVersionMax(self.context, max_version)
-        _assert_no_error(result)
-
-        # If there's a trust DB, we need to use it. We do that by telling
-        # SecureTransport to break on server auth. We also do that if we don't
-        # want to validate the certs at all: we just won't actually do any
-        # authing in that case.
-        if not verify or trust_bundle is not None:
-            result = Security.SSLSetSessionOption(
-                self.context,
-                SecurityConst.kSSLSessionOptionBreakOnServerAuth,
-                True
-            )
-            _assert_no_error(result)
-
-        # If there's a client cert, we need to use it.
-        if client_cert:
-            self._keychain, self._keychain_dir = _temporary_keychain()
-            self._client_cert_chain = _load_client_cert_chain(
-                self._keychain, client_cert, client_key
-            )
-            result = Security.SSLSetCertificate(
-                self.context, self._client_cert_chain
-            )
-            _assert_no_error(result)
-
-        while True:
-            with self._raise_on_error():
-                result = Security.SSLHandshake(self.context)
-
-                if result == SecurityConst.errSSLWouldBlock:
-                    raise socket.timeout("handshake timed out")
-                elif result == SecurityConst.errSSLServerAuthCompleted:
-                    self._custom_validate(verify, trust_bundle)
-                    continue
-                else:
-                    _assert_no_error(result)
-                    break
-
-    def fileno(self):
-        return self.socket.fileno()
-
-    # Copy-pasted from Python 3.5 source code
-    def _decref_socketios(self):
-        if self._makefile_refs > 0:
-            self._makefile_refs -= 1
-        if self._closed:
-            self.close()
-
-    def recv(self, bufsiz):
-        buffer = ctypes.create_string_buffer(bufsiz)
-        bytes_read = self.recv_into(buffer, bufsiz)
-        data = buffer[:bytes_read]
-        return data
-
-    def recv_into(self, buffer, nbytes=None):
-        # Read short on EOF.
-        if self._closed:
-            return 0
-
-        if nbytes is None:
-            nbytes = len(buffer)
-
-        buffer = (ctypes.c_char * nbytes).from_buffer(buffer)
-        processed_bytes = ctypes.c_size_t(0)
-
-        with self._raise_on_error():
-            result = Security.SSLRead(
-                self.context, buffer, nbytes, ctypes.byref(processed_bytes)
-            )
-
-        # There are some result codes that we want to treat as "not always
-        # errors". Specifically, those are errSSLWouldBlock,
-        # errSSLClosedGraceful, and errSSLClosedNoNotify.
-        if (result == SecurityConst.errSSLWouldBlock):
-            # If we didn't process any bytes, then this was just a time out.
-            # However, we can get errSSLWouldBlock in situations when we *did*
-            # read some data, and in those cases we should just read "short"
-            # and return.
-            if processed_bytes.value == 0:
-                # Timed out, no data read.
-                raise socket.timeout("recv timed out")
-        elif result in (SecurityConst.errSSLClosedGraceful, SecurityConst.errSSLClosedNoNotify):
-            # The remote peer has closed this connection. We should do so as
-            # well. Note that we don't actually return here because in
-            # principle this could actually be fired along with return data.
-            # It's unlikely though.
-            self.close()
-        else:
-            _assert_no_error(result)
-
-        # Ok, we read and probably succeeded. We should return whatever data
-        # was actually read.
-        return processed_bytes.value
-
-    def settimeout(self, timeout):
-        self._timeout = timeout
-
-    def gettimeout(self):
-        return self._timeout
-
-    def send(self, data):
-        processed_bytes = ctypes.c_size_t(0)
-
-        with self._raise_on_error():
-            result = Security.SSLWrite(
-                self.context, data, len(data), ctypes.byref(processed_bytes)
-            )
-
-        if result == SecurityConst.errSSLWouldBlock and processed_bytes.value == 0:
-            # Timed out
-            raise socket.timeout("send timed out")
-        else:
-            _assert_no_error(result)
-
-        # We sent, and probably succeeded. Tell them how much we sent.
-        return processed_bytes.value
-
-    def sendall(self, data):
-        total_sent = 0
-        while total_sent < len(data):
-            sent = self.send(data[total_sent:total_sent + SSL_WRITE_BLOCKSIZE])
-            total_sent += sent
-
-    def shutdown(self):
-        with self._raise_on_error():
-            Security.SSLClose(self.context)
-
-    def close(self):
-        # TODO: should I do clean shutdown here? Do I have to?
-        if self._makefile_refs < 1:
-            self._closed = True
-            if self.context:
-                CoreFoundation.CFRelease(self.context)
-                self.context = None
-            if self._client_cert_chain:
-                CoreFoundation.CFRelease(self._client_cert_chain)
-                self._client_cert_chain = None
-            if self._keychain:
-                Security.SecKeychainDelete(self._keychain)
-                CoreFoundation.CFRelease(self._keychain)
-                shutil.rmtree(self._keychain_dir)
-                self._keychain = self._keychain_dir = None
-            return self.socket.close()
-        else:
-            self._makefile_refs -= 1
-
-    def getpeercert(self, binary_form=False):
-        # Urgh, annoying.
-        #
-        # Here's how we do this:
-        #
-        # 1. Call SSLCopyPeerTrust to get hold of the trust object for this
-        #    connection.
-        # 2. Call SecTrustGetCertificateAtIndex for index 0 to get the leaf.
-        # 3. To get the CN, call SecCertificateCopyCommonName and process that
-        #    string so that it's of the appropriate type.
-        # 4. To get the SAN, we need to do something a bit more complex:
-        #    a. Call SecCertificateCopyValues to get the data, requesting
-        #       kSecOIDSubjectAltName.
-        #    b. Mess about with this dictionary to try to get the SANs out.
-        #
-        # This is gross. Really gross. It's going to be a few hundred LoC extra
-        # just to repeat something that SecureTransport can *already do*. So my
-        # operating assumption at this time is that what we want to do is
-        # instead to just flag to urllib3 that it shouldn't do its own hostname
-        # validation when using SecureTransport.
-        if not binary_form:
-            raise ValueError(
-                "SecureTransport only supports dumping binary certs"
-            )
-        trust = Security.SecTrustRef()
-        certdata = None
-        der_bytes = None
-
-        try:
-            # Grab the trust store.
-            result = Security.SSLCopyPeerTrust(
-                self.context, ctypes.byref(trust)
-            )
-            _assert_no_error(result)
-            if not trust:
-                # Probably we haven't done the handshake yet. No biggie.
-                return None
-
-            cert_count = Security.SecTrustGetCertificateCount(trust)
-            if not cert_count:
-                # Also a case that might happen if we haven't handshaked.
-                # Handshook? Handshaken?
-                return None
-
-            leaf = Security.SecTrustGetCertificateAtIndex(trust, 0)
-            assert leaf
-
-            # Ok, now we want the DER bytes.
-            certdata = Security.SecCertificateCopyData(leaf)
-            assert certdata
-
-            data_length = CoreFoundation.CFDataGetLength(certdata)
-            data_buffer = CoreFoundation.CFDataGetBytePtr(certdata)
-            der_bytes = ctypes.string_at(data_buffer, data_length)
-        finally:
-            if certdata:
-                CoreFoundation.CFRelease(certdata)
-            if trust:
-                CoreFoundation.CFRelease(trust)
-
-        return der_bytes
-
-    def _reuse(self):
-        self._makefile_refs += 1
-
-    def _drop(self):
-        if self._makefile_refs < 1:
-            self.close()
-        else:
-            self._makefile_refs -= 1
-
-
-if _fileobject:  # Platform-specific: Python 2
-    def makefile(self, mode, bufsize=-1):
-        self._makefile_refs += 1
-        return _fileobject(self, mode, bufsize, close=True)
-else:  # Platform-specific: Python 3
-    def makefile(self, mode="r", buffering=None, *args, **kwargs):
-        # We disable buffering with SecureTransport because it conflicts with
-        # the buffering that ST does internally (see issue #1153 for more).
-        buffering = 0
-        return backport_makefile(self, mode, buffering, *args, **kwargs)
-
-WrappedSocket.makefile = makefile
-
-
-class SecureTransportContext(object):
-    """
-    I am a wrapper class for the SecureTransport library, to translate the
-    interface of the standard library ``SSLContext`` object to calls into
-    SecureTransport.
-    """
-    def __init__(self, protocol):
-        self._min_version, self._max_version = _protocol_to_min_max[protocol]
-        self._options = 0
-        self._verify = False
-        self._trust_bundle = None
-        self._client_cert = None
-        self._client_key = None
-        self._client_key_passphrase = None
-
-    @property
-    def check_hostname(self):
-        """
-        SecureTransport cannot have its hostname checking disabled. For more,
-        see the comment on getpeercert() in this file.
-        """
-        return True
-
-    @check_hostname.setter
-    def check_hostname(self, value):
-        """
-        SecureTransport cannot have its hostname checking disabled. For more,
-        see the comment on getpeercert() in this file.
-        """
-        pass
-
-    @property
-    def options(self):
-        # TODO: Well, crap.
-        #
-        # So this is the bit of the code that is the most likely to cause us
-        # trouble. Essentially we need to enumerate all of the SSL options that
-        # users might want to use and try to see if we can sensibly translate
-        # them, or whether we should just ignore them.
-        return self._options
-
-    @options.setter
-    def options(self, value):
-        # TODO: Update in line with above.
-        self._options = value
-
-    @property
-    def verify_mode(self):
-        return ssl.CERT_REQUIRED if self._verify else ssl.CERT_NONE
-
-    @verify_mode.setter
-    def verify_mode(self, value):
-        self._verify = True if value == ssl.CERT_REQUIRED else False
-
-    def set_default_verify_paths(self):
-        # So, this has to do something a bit weird. Specifically, what it does
-        # is nothing.
-        #
-        # This means that, if we had previously had load_verify_locations
-        # called, this does not undo that. We need to do that because it turns
-        # out that the rest of the urllib3 code will attempt to load the
-        # default verify paths if it hasn't been told about any paths, even if
-        # the context itself was sometime earlier. We resolve that by just
-        # ignoring it.
-        pass
-
-    def load_default_certs(self):
-        return self.set_default_verify_paths()
-
-    def set_ciphers(self, ciphers):
-        # For now, we just require the default cipher string.
-        if ciphers != util.ssl_.DEFAULT_CIPHERS:
-            raise ValueError(
-                "SecureTransport doesn't support custom cipher strings"
-            )
-
-    def load_verify_locations(self, cafile=None, capath=None, cadata=None):
-        # OK, we only really support cadata and cafile.
-        if capath is not None:
-            raise ValueError(
-                "SecureTransport does not support cert directories"
-            )
-
-        self._trust_bundle = cafile or cadata
-
-    def load_cert_chain(self, certfile, keyfile=None, password=None):
-        self._client_cert = certfile
-        self._client_key = keyfile
-        self._client_cert_passphrase = password
-
-    def wrap_socket(self, sock, server_side=False,
-                    do_handshake_on_connect=True, suppress_ragged_eofs=True,
-                    server_hostname=None):
-        # So, what do we do here? Firstly, we assert some properties. This is a
-        # stripped down shim, so there is some functionality we don't support.
-        # See PEP 543 for the real deal.
-        assert not server_side
-        assert do_handshake_on_connect
-        assert suppress_ragged_eofs
-
-        # Ok, we're good to go. Now we want to create the wrapped socket object
-        # and store it in the appropriate place.
-        wrapped_socket = WrappedSocket(sock)
-
-        # Now we can handshake
-        wrapped_socket.handshake(
-            server_hostname, self._verify, self._trust_bundle,
-            self._min_version, self._max_version, self._client_cert,
-            self._client_key, self._client_key_passphrase
-        )
-        return wrapped_socket
diff --git a/collectors/python.d.plugin/python_modules/urllib3/contrib/socks.py b/collectors/python.d.plugin/python_modules/urllib3/contrib/socks.py
deleted file mode 100644
index 1cb79285b..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/contrib/socks.py
+++ /dev/null
@@ -1,189 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-License-Identifier: MIT
-"""
-This module contains provisional support for SOCKS proxies from within
-urllib3. This module supports SOCKS4 (specifically the SOCKS4A variant) and
-SOCKS5. To enable its functionality, either install PySocks or install this
-module with the ``socks`` extra.
-
-The SOCKS implementation supports the full range of urllib3 features. It also
-supports the following SOCKS features:
-
-- SOCKS4
-- SOCKS4a
-- SOCKS5
-- Usernames and passwords for the SOCKS proxy
-
-Known Limitations:
-
-- Currently PySocks does not support contacting remote websites via literal
-  IPv6 addresses. Any such connection attempt will fail. You must use a domain
-  name.
-- Currently PySocks does not support IPv6 connections to the SOCKS proxy. Any
-  such connection attempt will fail.
-"""
-from __future__ import absolute_import
-
-try:
-    import socks
-except ImportError:
-    import warnings
-    from ..exceptions import DependencyWarning
-
-    warnings.warn((
-        'SOCKS support in urllib3 requires the installation of optional '
-        'dependencies: specifically, PySocks.  For more information, see '
-        'https://urllib3.readthedocs.io/en/latest/contrib.html#socks-proxies'
-        ),
-        DependencyWarning
-    )
-    raise
-
-from socket import error as SocketError, timeout as SocketTimeout
-
-from ..connection import (
-    HTTPConnection, HTTPSConnection
-)
-from ..connectionpool import (
-    HTTPConnectionPool, HTTPSConnectionPool
-)
-from ..exceptions import ConnectTimeoutError, NewConnectionError
-from ..poolmanager import PoolManager
-from ..util.url import parse_url
-
-try:
-    import ssl
-except ImportError:
-    ssl = None
-
-
-class SOCKSConnection(HTTPConnection):
-    """
-    A plain-text HTTP connection that connects via a SOCKS proxy.
-    """
-    def __init__(self, *args, **kwargs):
-        self._socks_options = kwargs.pop('_socks_options')
-        super(SOCKSConnection, self).__init__(*args, **kwargs)
-
-    def _new_conn(self):
-        """
-        Establish a new connection via the SOCKS proxy.
-        """
-        extra_kw = {}
-        if self.source_address:
-            extra_kw['source_address'] = self.source_address
-
-        if self.socket_options:
-            extra_kw['socket_options'] = self.socket_options
-
-        try:
-            conn = socks.create_connection(
-                (self.host, self.port),
-                proxy_type=self._socks_options['socks_version'],
-                proxy_addr=self._socks_options['proxy_host'],
-                proxy_port=self._socks_options['proxy_port'],
-                proxy_username=self._socks_options['username'],
-                proxy_password=self._socks_options['password'],
-                proxy_rdns=self._socks_options['rdns'],
-                timeout=self.timeout,
-                **extra_kw
-            )
-
-        except SocketTimeout as e:
-            raise ConnectTimeoutError(
-                self, "Connection to %s timed out. (connect timeout=%s)" %
-                (self.host, self.timeout))
-
-        except socks.ProxyError as e:
-            # This is fragile as hell, but it seems to be the only way to raise
-            # useful errors here.
-            if e.socket_err:
-                error = e.socket_err
-                if isinstance(error, SocketTimeout):
-                    raise ConnectTimeoutError(
-                        self,
-                        "Connection to %s timed out. (connect timeout=%s)" %
-                        (self.host, self.timeout)
-                    )
-                else:
-                    raise NewConnectionError(
-                        self,
-                        "Failed to establish a new connection: %s" % error
-                    )
-            else:
-                raise NewConnectionError(
-                    self,
-                    "Failed to establish a new connection: %s" % e
-                )
-
-        except SocketError as e:  # Defensive: PySocks should catch all these.
-            raise NewConnectionError(
-                self, "Failed to establish a new connection: %s" % e)
-
-        return conn
-
-
-# We don't need to duplicate the Verified/Unverified distinction from
-# urllib3/connection.py here because the HTTPSConnection will already have been
-# correctly set to either the Verified or Unverified form by that module. This
-# means the SOCKSHTTPSConnection will automatically be the correct type.
-class SOCKSHTTPSConnection(SOCKSConnection, HTTPSConnection):
-    pass
-
-
-class SOCKSHTTPConnectionPool(HTTPConnectionPool):
-    ConnectionCls = SOCKSConnection
-
-
-class SOCKSHTTPSConnectionPool(HTTPSConnectionPool):
-    ConnectionCls = SOCKSHTTPSConnection
-
-
-class SOCKSProxyManager(PoolManager):
-    """
-    A version of the urllib3 ProxyManager that routes connections via the
-    defined SOCKS proxy.
-    """
-    pool_classes_by_scheme = {
-        'http': SOCKSHTTPConnectionPool,
-        'https': SOCKSHTTPSConnectionPool,
-    }
-
-    def __init__(self, proxy_url, username=None, password=None,
-                 num_pools=10, headers=None, **connection_pool_kw):
-        parsed = parse_url(proxy_url)
-
-        if parsed.scheme == 'socks5':
-            socks_version = socks.PROXY_TYPE_SOCKS5
-            rdns = False
-        elif parsed.scheme == 'socks5h':
-            socks_version = socks.PROXY_TYPE_SOCKS5
-            rdns = True
-        elif parsed.scheme == 'socks4':
-            socks_version = socks.PROXY_TYPE_SOCKS4
-            rdns = False
-        elif parsed.scheme == 'socks4a':
-            socks_version = socks.PROXY_TYPE_SOCKS4
-            rdns = True
-        else:
-            raise ValueError(
-                "Unable to determine SOCKS version from %s" % proxy_url
-            )
-
-        self.proxy_url = proxy_url
-
-        socks_options = {
-            'socks_version': socks_version,
-            'proxy_host': parsed.host,
-            'proxy_port': parsed.port,
-            'username': username,
-            'password': password,
-            'rdns': rdns
-        }
-        connection_pool_kw['_socks_options'] = socks_options
-
-        super(SOCKSProxyManager, self).__init__(
-            num_pools, headers, **connection_pool_kw
-        )
-
-        self.pool_classes_by_scheme = SOCKSProxyManager.pool_classes_by_scheme
diff --git a/collectors/python.d.plugin/python_modules/urllib3/exceptions.py b/collectors/python.d.plugin/python_modules/urllib3/exceptions.py
deleted file mode 100644
index a71cabe06..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/exceptions.py
+++ /dev/null
@@ -1,247 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-from .packages.six.moves.http_client import (
-    IncompleteRead as httplib_IncompleteRead
-)
-# Base Exceptions
-
-
-class HTTPError(Exception):
-    "Base exception used by this module."
-    pass
-
-
-class HTTPWarning(Warning):
-    "Base warning used by this module."
-    pass
-
-
-class PoolError(HTTPError):
-    "Base exception for errors caused within a pool."
-    def __init__(self, pool, message):
-        self.pool = pool
-        HTTPError.__init__(self, "%s: %s" % (pool, message))
-
-    def __reduce__(self):
-        # For pickling purposes.
-        return self.__class__, (None, None)
-
-
-class RequestError(PoolError):
-    "Base exception for PoolErrors that have associated URLs."
-    def __init__(self, pool, url, message):
-        self.url = url
-        PoolError.__init__(self, pool, message)
-
-    def __reduce__(self):
-        # For pickling purposes.
-        return self.__class__, (None, self.url, None)
-
-
-class SSLError(HTTPError):
-    "Raised when SSL certificate fails in an HTTPS connection."
-    pass
-
-
-class ProxyError(HTTPError):
-    "Raised when the connection to a proxy fails."
-    pass
-
-
-class DecodeError(HTTPError):
-    "Raised when automatic decoding based on Content-Type fails."
-    pass
-
-
-class ProtocolError(HTTPError):
-    "Raised when something unexpected happens mid-request/response."
-    pass
-
-
-#: Renamed to ProtocolError but aliased for backwards compatibility.
-ConnectionError = ProtocolError
-
-
-# Leaf Exceptions
-
-class MaxRetryError(RequestError):
-    """Raised when the maximum number of retries is exceeded.
-
-    :param pool: The connection pool
-    :type pool: :class:`~urllib3.connectionpool.HTTPConnectionPool`
-    :param string url: The requested Url
-    :param exceptions.Exception reason: The underlying error
-
-    """
-
-    def __init__(self, pool, url, reason=None):
-        self.reason = reason
-
-        message = "Max retries exceeded with url: %s (Caused by %r)" % (
-            url, reason)
-
-        RequestError.__init__(self, pool, url, message)
-
-
-class HostChangedError(RequestError):
-    "Raised when an existing pool gets a request for a foreign host."
-
-    def __init__(self, pool, url, retries=3):
-        message = "Tried to open a foreign host with url: %s" % url
-        RequestError.__init__(self, pool, url, message)
-        self.retries = retries
-
-
-class TimeoutStateError(HTTPError):
-    """ Raised when passing an invalid state to a timeout """
-    pass
-
-
-class TimeoutError(HTTPError):
-    """ Raised when a socket timeout error occurs.
-
-    Catching this error will catch both :exc:`ReadTimeoutErrors
-    <ReadTimeoutError>` and :exc:`ConnectTimeoutErrors <ConnectTimeoutError>`.
-    """
-    pass
-
-
-class ReadTimeoutError(TimeoutError, RequestError):
-    "Raised when a socket timeout occurs while receiving data from a server"
-    pass
-
-
-# This timeout error does not have a URL attached and needs to inherit from the
-# base HTTPError
-class ConnectTimeoutError(TimeoutError):
-    "Raised when a socket timeout occurs while connecting to a server"
-    pass
-
-
-class NewConnectionError(ConnectTimeoutError, PoolError):
-    "Raised when we fail to establish a new connection. Usually ECONNREFUSED."
-    pass
-
-
-class EmptyPoolError(PoolError):
-    "Raised when a pool runs out of connections and no more are allowed."
-    pass
-
-
-class ClosedPoolError(PoolError):
-    "Raised when a request enters a pool after the pool has been closed."
-    pass
-
-
-class LocationValueError(ValueError, HTTPError):
-    "Raised when there is something wrong with a given URL input."
-    pass
-
-
-class LocationParseError(LocationValueError):
-    "Raised when get_host or similar fails to parse the URL input."
-
-    def __init__(self, location):
-        message = "Failed to parse: %s" % location
-        HTTPError.__init__(self, message)
-
-        self.location = location
-
-
-class ResponseError(HTTPError):
-    "Used as a container for an error reason supplied in a MaxRetryError."
-    GENERIC_ERROR = 'too many error responses'
-    SPECIFIC_ERROR = 'too many {status_code} error responses'
-
-
-class SecurityWarning(HTTPWarning):
-    "Warned when perfoming security reducing actions"
-    pass
-
-
-class SubjectAltNameWarning(SecurityWarning):
-    "Warned when connecting to a host with a certificate missing a SAN."
-    pass
-
-
-class InsecureRequestWarning(SecurityWarning):
-    "Warned when making an unverified HTTPS request."
-    pass
-
-
-class SystemTimeWarning(SecurityWarning):
-    "Warned when system time is suspected to be wrong"
-    pass
-
-
-class InsecurePlatformWarning(SecurityWarning):
-    "Warned when certain SSL configuration is not available on a platform."
-    pass
-
-
-class SNIMissingWarning(HTTPWarning):
-    "Warned when making a HTTPS request without SNI available."
-    pass
-
-
-class DependencyWarning(HTTPWarning):
-    """
-    Warned when an attempt is made to import a module with missing optional
-    dependencies.
-    """
-    pass
-
-
-class ResponseNotChunked(ProtocolError, ValueError):
-    "Response needs to be chunked in order to read it as chunks."
-    pass
-
-
-class BodyNotHttplibCompatible(HTTPError):
-    """
-    Body should be httplib.HTTPResponse like (have an fp attribute which
-    returns raw chunks) for read_chunked().
-    """
-    pass
-
-
-class IncompleteRead(HTTPError, httplib_IncompleteRead):
-    """
-    Response length doesn't match expected Content-Length
-
-    Subclass of http_client.IncompleteRead to allow int value
-    for `partial` to avoid creating large objects on streamed
-    reads.
-    """
-    def __init__(self, partial, expected):
-        super(IncompleteRead, self).__init__(partial, expected)
-
-    def __repr__(self):
-        return ('IncompleteRead(%i bytes read, '
-                '%i more expected)' % (self.partial, self.expected))
-
-
-class InvalidHeader(HTTPError):
-    "The header provided was somehow invalid."
-    pass
-
-
-class ProxySchemeUnknown(AssertionError, ValueError):
-    "ProxyManager does not support the supplied scheme"
-    # TODO(t-8ch): Stop inheriting from AssertionError in v2.0.
-
-    def __init__(self, scheme):
-        message = "Not supported proxy scheme %s" % scheme
-        super(ProxySchemeUnknown, self).__init__(message)
-
-
-class HeaderParsingError(HTTPError):
-    "Raised by assert_header_parsing, but we convert it to a log.warning statement."
-    def __init__(self, defects, unparsed_data):
-        message = '%s, unparsed data: %r' % (defects or 'Unknown', unparsed_data)
-        super(HeaderParsingError, self).__init__(message)
-
-
-class UnrewindableBodyError(HTTPError):
-    "urllib3 encountered an error when trying to rewind a body"
-    pass
diff --git a/collectors/python.d.plugin/python_modules/urllib3/fields.py b/collectors/python.d.plugin/python_modules/urllib3/fields.py
deleted file mode 100644
index de7577b74..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/fields.py
+++ /dev/null
@@ -1,179 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-import email.utils
-import mimetypes
-
-from .packages import six
-
-
-def guess_content_type(filename, default='application/octet-stream'):
-    """
-    Guess the "Content-Type" of a file.
-
-    :param filename:
-        The filename to guess the "Content-Type" of using :mod:`mimetypes`.
-    :param default:
-        If no "Content-Type" can be guessed, default to `default`.
-    """
-    if filename:
-        return mimetypes.guess_type(filename)[0] or default
-    return default
-
-
-def format_header_param(name, value):
-    """
-    Helper function to format and quote a single header parameter.
-
-    Particularly useful for header parameters which might contain
-    non-ASCII values, like file names. This follows RFC 2231, as
-    suggested by RFC 2388 Section 4.4.
-
-    :param name:
-        The name of the parameter, a string expected to be ASCII only.
-    :param value:
-        The value of the parameter, provided as a unicode string.
-    """
-    if not any(ch in value for ch in '"\\\r\n'):
-        result = '%s="%s"' % (name, value)
-        try:
-            result.encode('ascii')
-        except (UnicodeEncodeError, UnicodeDecodeError):
-            pass
-        else:
-            return result
-    if not six.PY3 and isinstance(value, six.text_type):  # Python 2:
-        value = value.encode('utf-8')
-    value = email.utils.encode_rfc2231(value, 'utf-8')
-    value = '%s*=%s' % (name, value)
-    return value
-
-
-class RequestField(object):
-    """
-    A data container for request body parameters.
-
-    :param name:
-        The name of this request field.
-    :param data:
-        The data/value body.
-    :param filename:
-        An optional filename of the request field.
-    :param headers:
-        An optional dict-like object of headers to initially use for the field.
-    """
-    def __init__(self, name, data, filename=None, headers=None):
-        self._name = name
-        self._filename = filename
-        self.data = data
-        self.headers = {}
-        if headers:
-            self.headers = dict(headers)
-
-    @classmethod
-    def from_tuples(cls, fieldname, value):
-        """
-        A :class:`~urllib3.fields.RequestField` factory from old-style tuple parameters.
-
-        Supports constructing :class:`~urllib3.fields.RequestField` from
-        parameter of key/value strings AND key/filetuple. A filetuple is a
-        (filename, data, MIME type) tuple where the MIME type is optional.
-        For example::
-
-            'foo': 'bar',
-            'fakefile': ('foofile.txt', 'contents of foofile'),
-            'realfile': ('barfile.txt', open('realfile').read()),
-            'typedfile': ('bazfile.bin', open('bazfile').read(), 'image/jpeg'),
-            'nonamefile': 'contents of nonamefile field',
-
-        Field names and filenames must be unicode.
-        """
-        if isinstance(value, tuple):
-            if len(value) == 3:
-                filename, data, content_type = value
-            else:
-                filename, data = value
-                content_type = guess_content_type(filename)
-        else:
-            filename = None
-            content_type = None
-            data = value
-
-        request_param = cls(fieldname, data, filename=filename)
-        request_param.make_multipart(content_type=content_type)
-
-        return request_param
-
-    def _render_part(self, name, value):
-        """
-        Overridable helper function to format a single header parameter.
-
-        :param name:
-            The name of the parameter, a string expected to be ASCII only.
-        :param value:
-            The value of the parameter, provided as a unicode string.
-        """
-        return format_header_param(name, value)
-
-    def _render_parts(self, header_parts):
-        """
-        Helper function to format and quote a single header.
-
-        Useful for single headers that are composed of multiple items. E.g.,
-        'Content-Disposition' fields.
-
-        :param header_parts:
-            A sequence of (k, v) typles or a :class:`dict` of (k, v) to format
-            as `k1="v1"; k2="v2"; ...`.
-        """
-        parts = []
-        iterable = header_parts
-        if isinstance(header_parts, dict):
-            iterable = header_parts.items()
-
-        for name, value in iterable:
-            if value is not None:
-                parts.append(self._render_part(name, value))
-
-        return '; '.join(parts)
-
-    def render_headers(self):
-        """
-        Renders the headers for this request field.
-        """
-        lines = []
-
-        sort_keys = ['Content-Disposition', 'Content-Type', 'Content-Location']
-        for sort_key in sort_keys:
-            if self.headers.get(sort_key, False):
-                lines.append('%s: %s' % (sort_key, self.headers[sort_key]))
-
-        for header_name, header_value in self.headers.items():
-            if header_name not in sort_keys:
-                if header_value:
-                    lines.append('%s: %s' % (header_name, header_value))
-
-        lines.append('\r\n')
-        return '\r\n'.join(lines)
-
-    def make_multipart(self, content_disposition=None, content_type=None,
-                       content_location=None):
-        """
-        Makes this request field into a multipart request field.
-
-        This method overrides "Content-Disposition", "Content-Type" and
-        "Content-Location" headers to the request parameter.
-
-        :param content_type:
-            The 'Content-Type' of the request body.
-        :param content_location:
-            The 'Content-Location' of the request body.
-
-        """
-        self.headers['Content-Disposition'] = content_disposition or 'form-data'
-        self.headers['Content-Disposition'] += '; '.join([
-            '', self._render_parts(
-                (('name', self._name), ('filename', self._filename))
-            )
-        ])
-        self.headers['Content-Type'] = content_type
-        self.headers['Content-Location'] = content_location
diff --git a/collectors/python.d.plugin/python_modules/urllib3/filepost.py b/collectors/python.d.plugin/python_modules/urllib3/filepost.py
deleted file mode 100644
index 3febc9cfe..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/filepost.py
+++ /dev/null
@@ -1,95 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-import codecs
-
-from uuid import uuid4
-from io import BytesIO
-
-from .packages import six
-from .packages.six import b
-from .fields import RequestField
-
-writer = codecs.lookup('utf-8')[3]
-
-
-def choose_boundary():
-    """
-    Our embarrassingly-simple replacement for mimetools.choose_boundary.
-    """
-    return uuid4().hex
-
-
-def iter_field_objects(fields):
-    """
-    Iterate over fields.
-
-    Supports list of (k, v) tuples and dicts, and lists of
-    :class:`~urllib3.fields.RequestField`.
-
-    """
-    if isinstance(fields, dict):
-        i = six.iteritems(fields)
-    else:
-        i = iter(fields)
-
-    for field in i:
-        if isinstance(field, RequestField):
-            yield field
-        else:
-            yield RequestField.from_tuples(*field)
-
-
-def iter_fields(fields):
-    """
-    .. deprecated:: 1.6
-
-    Iterate over fields.
-
-    The addition of :class:`~urllib3.fields.RequestField` makes this function
-    obsolete. Instead, use :func:`iter_field_objects`, which returns
-    :class:`~urllib3.fields.RequestField` objects.
-
-    Supports list of (k, v) tuples and dicts.
-    """
-    if isinstance(fields, dict):
-        return ((k, v) for k, v in six.iteritems(fields))
-
-    return ((k, v) for k, v in fields)
-
-
-def encode_multipart_formdata(fields, boundary=None):
-    """
-    Encode a dictionary of ``fields`` using the multipart/form-data MIME format.
-
-    :param fields:
-        Dictionary of fields or list of (key, :class:`~urllib3.fields.RequestField`).
-
-    :param boundary:
-        If not specified, then a random boundary will be generated using
-        :func:`mimetools.choose_boundary`.
-    """
-    body = BytesIO()
-    if boundary is None:
-        boundary = choose_boundary()
-
-    for field in iter_field_objects(fields):
-        body.write(b('--%s\r\n' % (boundary)))
-
-        writer(body).write(field.render_headers())
-        data = field.data
-
-        if isinstance(data, int):
-            data = str(data)  # Backwards compatibility
-
-        if isinstance(data, six.text_type):
-            writer(body).write(data)
-        else:
-            body.write(data)
-
-        body.write(b'\r\n')
-
-    body.write(b('--%s--\r\n' % (boundary)))
-
-    content_type = str('multipart/form-data; boundary=%s' % boundary)
-
-    return body.getvalue(), content_type
diff --git a/collectors/python.d.plugin/python_modules/urllib3/packages/__init__.py b/collectors/python.d.plugin/python_modules/urllib3/packages/__init__.py
deleted file mode 100644
index 170e974c1..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/packages/__init__.py
+++ /dev/null
@@ -1,5 +0,0 @@
-from __future__ import absolute_import
-
-from . import ssl_match_hostname
-
-__all__ = ('ssl_match_hostname', )
diff --git a/collectors/python.d.plugin/python_modules/urllib3/packages/backports/__init__.py b/collectors/python.d.plugin/python_modules/urllib3/packages/backports/__init__.py
deleted file mode 100644
index e69de29bb..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/packages/backports/__init__.py
+++ /dev/null
diff --git a/collectors/python.d.plugin/python_modules/urllib3/packages/backports/makefile.py b/collectors/python.d.plugin/python_modules/urllib3/packages/backports/makefile.py
deleted file mode 100644
index 8ab122f8b..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/packages/backports/makefile.py
+++ /dev/null
@@ -1,54 +0,0 @@
-# -*- coding: utf-8 -*-
-# SPDX-License-Identifier: MIT
-"""
-backports.makefile
-~~~~~~~~~~~~~~~~~~
-
-Backports the Python 3 ``socket.makefile`` method for use with anything that
-wants to create a "fake" socket object.
-"""
-import io
-
-from socket import SocketIO
-
-
-def backport_makefile(self, mode="r", buffering=None, encoding=None,
-                      errors=None, newline=None):
-    """
-    Backport of ``socket.makefile`` from Python 3.5.
-    """
-    if not set(mode) <= set(["r", "w", "b"]):
-        raise ValueError(
-            "invalid mode %r (only r, w, b allowed)" % (mode,)
-        )
-    writing = "w" in mode
-    reading = "r" in mode or not writing
-    assert reading or writing
-    binary = "b" in mode
-    rawmode = ""
-    if reading:
-        rawmode += "r"
-    if writing:
-        rawmode += "w"
-    raw = SocketIO(self, rawmode)
-    self._makefile_refs += 1
-    if buffering is None:
-        buffering = -1
-    if buffering < 0:
-        buffering = io.DEFAULT_BUFFER_SIZE
-    if buffering == 0:
-        if not binary:
-            raise ValueError("unbuffered streams must be binary")
-        return raw
-    if reading and writing:
-        buffer = io.BufferedRWPair(raw, raw, buffering)
-    elif reading:
-        buffer = io.BufferedReader(raw, buffering)
-    else:
-        assert writing
-        buffer = io.BufferedWriter(raw, buffering)
-    if binary:
-        return buffer
-    text = io.TextIOWrapper(buffer, encoding, errors, newline)
-    text.mode = mode
-    return text
diff --git a/collectors/python.d.plugin/python_modules/urllib3/packages/ordered_dict.py b/collectors/python.d.plugin/python_modules/urllib3/packages/ordered_dict.py
deleted file mode 100644
index 9f7c0e6b8..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/packages/ordered_dict.py
+++ /dev/null
@@ -1,260 +0,0 @@
-# Backport of OrderedDict() class that runs on Python 2.4, 2.5, 2.6, 2.7 and pypy.
-# Passes Python2.7's test suite and incorporates all the latest updates.
-# Copyright 2009 Raymond Hettinger, released under the MIT License.
-# http://code.activestate.com/recipes/576693/
-# SPDX-License-Identifier: MIT
-try:
-    from thread import get_ident as _get_ident
-except ImportError:
-    from dummy_thread import get_ident as _get_ident
-
-try:
-    from _abcoll import KeysView, ValuesView, ItemsView
-except ImportError:
-    pass
-
-
-class OrderedDict(dict):
-    'Dictionary that remembers insertion order'
-    # An inherited dict maps keys to values.
-    # The inherited dict provides __getitem__, __len__, __contains__, and get.
-    # The remaining methods are order-aware.
-    # Big-O running times for all methods are the same as for regular dictionaries.
-
-    # The internal self.__map dictionary maps keys to links in a doubly linked list.
-    # The circular doubly linked list starts and ends with a sentinel element.
-    # The sentinel element never gets deleted (this simplifies the algorithm).
-    # Each link is stored as a list of length three:  [PREV, NEXT, KEY].
-
-    def __init__(self, *args, **kwds):
-        '''Initialize an ordered dictionary.  Signature is the same as for
-        regular dictionaries, but keyword arguments are not recommended
-        because their insertion order is arbitrary.
-
-        '''
-        if len(args) > 1:
-            raise TypeError('expected at most 1 arguments, got %d' % len(args))
-        try:
-            self.__root
-        except AttributeError:
-            self.__root = root = []                     # sentinel node
-            root[:] = [root, root, None]
-            self.__map = {}
-        self.__update(*args, **kwds)
-
-    def __setitem__(self, key, value, dict_setitem=dict.__setitem__):
-        'od.__setitem__(i, y) <==> od[i]=y'
-        # Setting a new item creates a new link which goes at the end of the linked
-        # list, and the inherited dictionary is updated with the new key/value pair.
-        if key not in self:
-            root = self.__root
-            last = root[0]
-            last[1] = root[0] = self.__map[key] = [last, root, key]
-        dict_setitem(self, key, value)
-
-    def __delitem__(self, key, dict_delitem=dict.__delitem__):
-        'od.__delitem__(y) <==> del od[y]'
-        # Deleting an existing item uses self.__map to find the link which is
-        # then removed by updating the links in the predecessor and successor nodes.
-        dict_delitem(self, key)
-        link_prev, link_next, key = self.__map.pop(key)
-        link_prev[1] = link_next
-        link_next[0] = link_prev
-
-    def __iter__(self):
-        'od.__iter__() <==> iter(od)'
-        root = self.__root
-        curr = root[1]
-        while curr is not root:
-            yield curr[2]
-            curr = curr[1]
-
-    def __reversed__(self):
-        'od.__reversed__() <==> reversed(od)'
-        root = self.__root
-        curr = root[0]
-        while curr is not root:
-            yield curr[2]
-            curr = curr[0]
-
-    def clear(self):
-        'od.clear() -> None.  Remove all items from od.'
-        try:
-            for node in self.__map.itervalues():
-                del node[:]
-            root = self.__root
-            root[:] = [root, root, None]
-            self.__map.clear()
-        except AttributeError:
-            pass
-        dict.clear(self)
-
-    def popitem(self, last=True):
-        '''od.popitem() -> (k, v), return and remove a (key, value) pair.
-        Pairs are returned in LIFO order if last is true or FIFO order if false.
-
-        '''
-        if not self:
-            raise KeyError('dictionary is empty')
-        root = self.__root
-        if last:
-            link = root[0]
-            link_prev = link[0]
-            link_prev[1] = root
-            root[0] = link_prev
-        else:
-            link = root[1]
-            link_next = link[1]
-            root[1] = link_next
-            link_next[0] = root
-        key = link[2]
-        del self.__map[key]
-        value = dict.pop(self, key)
-        return key, value
-
-    # -- the following methods do not depend on the internal structure --
-
-    def keys(self):
-        'od.keys() -> list of keys in od'
-        return list(self)
-
-    def values(self):
-        'od.values() -> list of values in od'
-        return [self[key] for key in self]
-
-    def items(self):
-        'od.items() -> list of (key, value) pairs in od'
-        return [(key, self[key]) for key in self]
-
-    def iterkeys(self):
-        'od.iterkeys() -> an iterator over the keys in od'
-        return iter(self)
-
-    def itervalues(self):
-        'od.itervalues -> an iterator over the values in od'
-        for k in self:
-            yield self[k]
-
-    def iteritems(self):
-        'od.iteritems -> an iterator over the (key, value) items in od'
-        for k in self:
-            yield (k, self[k])
-
-    def update(*args, **kwds):
-        '''od.update(E, **F) -> None.  Update od from dict/iterable E and F.
-
-        If E is a dict instance, does:           for k in E: od[k] = E[k]
-        If E has a .keys() method, does:         for k in E.keys(): od[k] = E[k]
-        Or if E is an iterable of items, does:   for k, v in E: od[k] = v
-        In either case, this is followed by:     for k, v in F.items(): od[k] = v
-
-        '''
-        if len(args) > 2:
-            raise TypeError('update() takes at most 2 positional '
-                            'arguments (%d given)' % (len(args),))
-        elif not args:
-            raise TypeError('update() takes at least 1 argument (0 given)')
-        self = args[0]
-        # Make progressively weaker assumptions about "other"
-        other = ()
-        if len(args) == 2:
-            other = args[1]
-        if isinstance(other, dict):
-            for key in other:
-                self[key] = other[key]
-        elif hasattr(other, 'keys'):
-            for key in other.keys():
-                self[key] = other[key]
-        else:
-            for key, value in other:
-                self[key] = value
-        for key, value in kwds.items():
-            self[key] = value
-
-    __update = update  # let subclasses override update without breaking __init__
-
-    __marker = object()
-
-    def pop(self, key, default=__marker):
-        '''od.pop(k[,d]) -> v, remove specified key and return the corresponding value.
-        If key is not found, d is returned if given, otherwise KeyError is raised.
-
-        '''
-        if key in self:
-            result = self[key]
-            del self[key]
-            return result
-        if default is self.__marker:
-            raise KeyError(key)
-        return default
-
-    def setdefault(self, key, default=None):
-        'od.setdefault(k[,d]) -> od.get(k,d), also set od[k]=d if k not in od'
-        if key in self:
-            return self[key]
-        self[key] = default
-        return default
-
-    def __repr__(self, _repr_running={}):
-        'od.__repr__() <==> repr(od)'
-        call_key = id(self), _get_ident()
-        if call_key in _repr_running:
-            return '...'
-        _repr_running[call_key] = 1
-        try:
-            if not self:
-                return '%s()' % (self.__class__.__name__,)
-            return '%s(%r)' % (self.__class__.__name__, self.items())
-        finally:
-            del _repr_running[call_key]
-
-    def __reduce__(self):
-        'Return state information for pickling'
-        items = [[k, self[k]] for k in self]
-        inst_dict = vars(self).copy()
-        for k in vars(OrderedDict()):
-            inst_dict.pop(k, None)
-        if inst_dict:
-            return (self.__class__, (items,), inst_dict)
-        return self.__class__, (items,)
-
-    def copy(self):
-        'od.copy() -> a shallow copy of od'
-        return self.__class__(self)
-
-    @classmethod
-    def fromkeys(cls, iterable, value=None):
-        '''OD.fromkeys(S[, v]) -> New ordered dictionary with keys from S
-        and values equal to v (which defaults to None).
-
-        '''
-        d = cls()
-        for key in iterable:
-            d[key] = value
-        return d
-
-    def __eq__(self, other):
-        '''od.__eq__(y) <==> od==y.  Comparison to another OD is order-sensitive
-        while comparison to a regular mapping is order-insensitive.
-
-        '''
-        if isinstance(other, OrderedDict):
-            return len(self)==len(other) and self.items() == other.items()
-        return dict.__eq__(self, other)
-
-    def __ne__(self, other):
-        return not self == other
-
-    # -- the following methods are only used in Python 2.7 --
-
-    def viewkeys(self):
-        "od.viewkeys() -> a set-like object providing a view on od's keys"
-        return KeysView(self)
-
-    def viewvalues(self):
-        "od.viewvalues() -> an object providing a view on od's values"
-        return ValuesView(self)
-
-    def viewitems(self):
-        "od.viewitems() -> a set-like object providing a view on od's items"
-        return ItemsView(self)
diff --git a/collectors/python.d.plugin/python_modules/urllib3/packages/six.py b/collectors/python.d.plugin/python_modules/urllib3/packages/six.py
deleted file mode 100644
index 31df5012b..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/packages/six.py
+++ /dev/null
@@ -1,852 +0,0 @@
-"""Utilities for writing code that runs on Python 2 and 3"""
-
-# Copyright (c) 2010-2015 Benjamin Peterson
-#
-# SPDX-License-Identifier: MIT
-
-from __future__ import absolute_import
-
-import functools
-import itertools
-import operator
-import sys
-import types
-
-__author__ = "Benjamin Peterson <benjamin@python.org>"
-__version__ = "1.10.0"
-
-
-# Useful for very coarse version differentiation.
-PY2 = sys.version_info[0] == 2
-PY3 = sys.version_info[0] == 3
-PY34 = sys.version_info[0:2] >= (3, 4)
-
-if PY3:
-    string_types = str,
-    integer_types = int,
-    class_types = type,
-    text_type = str
-    binary_type = bytes
-
-    MAXSIZE = sys.maxsize
-else:
-    string_types = basestring,
-    integer_types = (int, long)
-    class_types = (type, types.ClassType)
-    text_type = unicode
-    binary_type = str
-
-    if sys.platform.startswith("java"):
-        # Jython always uses 32 bits.
-        MAXSIZE = int((1 << 31) - 1)
-    else:
-        # It's possible to have sizeof(long) != sizeof(Py_ssize_t).
-        class X(object):
-
-            def __len__(self):
-                return 1 << 31
-        try:
-            len(X())
-        except OverflowError:
-            # 32-bit
-            MAXSIZE = int((1 << 31) - 1)
-        else:
-            # 64-bit
-            MAXSIZE = int((1 << 63) - 1)
-        del X
-
-
-def _add_doc(func, doc):
-    """Add documentation to a function."""
-    func.__doc__ = doc
-
-
-def _import_module(name):
-    """Import module, returning the module after the last dot."""
-    __import__(name)
-    return sys.modules[name]
-
-
-class _LazyDescr(object):
-
-    def __init__(self, name):
-        self.name = name
-
-    def __get__(self, obj, tp):
-        result = self._resolve()
-        setattr(obj, self.name, result)  # Invokes __set__.
-        try:
-            # This is a bit ugly, but it avoids running this again by
-            # removing this descriptor.
-            delattr(obj.__class__, self.name)
-        except AttributeError:
-            pass
-        return result
-
-
-class MovedModule(_LazyDescr):
-
-    def __init__(self, name, old, new=None):
-        super(MovedModule, self).__init__(name)
-        if PY3:
-            if new is None:
-                new = name
-            self.mod = new
-        else:
-            self.mod = old
-
-    def _resolve(self):
-        return _import_module(self.mod)
-
-    def __getattr__(self, attr):
-        _module = self._resolve()
-        value = getattr(_module, attr)
-        setattr(self, attr, value)
-        return value
-
-
-class _LazyModule(types.ModuleType):
-
-    def __init__(self, name):
-        super(_LazyModule, self).__init__(name)
-        self.__doc__ = self.__class__.__doc__
-
-    def __dir__(self):
-        attrs = ["__doc__", "__name__"]
-        attrs += [attr.name for attr in self._moved_attributes]
-        return attrs
-
-    # Subclasses should override this
-    _moved_attributes = []
-
-
-class MovedAttribute(_LazyDescr):
-
-    def __init__(self, name, old_mod, new_mod, old_attr=None, new_attr=None):
-        super(MovedAttribute, self).__init__(name)
-        if PY3:
-            if new_mod is None:
-                new_mod = name
-            self.mod = new_mod
-            if new_attr is None:
-                if old_attr is None:
-                    new_attr = name
-                else:
-                    new_attr = old_attr
-            self.attr = new_attr
-        else:
-            self.mod = old_mod
-            if old_attr is None:
-                old_attr = name
-            self.attr = old_attr
-
-    def _resolve(self):
-        module = _import_module(self.mod)
-        return getattr(module, self.attr)
-
-
-class _SixMetaPathImporter(object):
-
-    """
-    A meta path importer to import six.moves and its submodules.
-
-    This class implements a PEP302 finder and loader. It should be compatible
-    with Python 2.5 and all existing versions of Python3
-    """
-
-    def __init__(self, six_module_name):
-        self.name = six_module_name
-        self.known_modules = {}
-
-    def _add_module(self, mod, *fullnames):
-        for fullname in fullnames:
-            self.known_modules[self.name + "." + fullname] = mod
-
-    def _get_module(self, fullname):
-        return self.known_modules[self.name + "." + fullname]
-
-    def find_module(self, fullname, path=None):
-        if fullname in self.known_modules:
-            return self
-        return None
-
-    def __get_module(self, fullname):
-        try:
-            return self.known_modules[fullname]
-        except KeyError:
-            raise ImportError("This loader does not know module " + fullname)
-
-    def load_module(self, fullname):
-        try:
-            # in case of a reload
-            return sys.modules[fullname]
-        except KeyError:
-            pass
-        mod = self.__get_module(fullname)
-        if isinstance(mod, MovedModule):
-            mod = mod._resolve()
-        else:
-            mod.__loader__ = self
-        sys.modules[fullname] = mod
-        return mod
-
-    def is_package(self, fullname):
-        """
-        Return true, if the named module is a package.
-
-        We need this method to get correct spec objects with
-        Python 3.4 (see PEP451)
-        """
-        return hasattr(self.__get_module(fullname), "__path__")
-
-    def get_code(self, fullname):
-        """Return None
-
-        Required, if is_package is implemented"""
-        self.__get_module(fullname)  # eventually raises ImportError
-        return None
-    get_source = get_code  # same as get_code
-
-_importer = _SixMetaPathImporter(__name__)
-
-
-class _MovedItems(_LazyModule):
-
-    """Lazy loading of moved objects"""
-    __path__ = []  # mark as package
-
-
-_moved_attributes = [
-    MovedAttribute("cStringIO", "cStringIO", "io", "StringIO"),
-    MovedAttribute("filter", "itertools", "builtins", "ifilter", "filter"),
-    MovedAttribute("filterfalse", "itertools", "itertools", "ifilterfalse", "filterfalse"),
-    MovedAttribute("input", "__builtin__", "builtins", "raw_input", "input"),
-    MovedAttribute("intern", "__builtin__", "sys"),
-    MovedAttribute("map", "itertools", "builtins", "imap", "map"),
-    MovedAttribute("getcwd", "os", "os", "getcwdu", "getcwd"),
-    MovedAttribute("getcwdb", "os", "os", "getcwd", "getcwdb"),
-    MovedAttribute("range", "__builtin__", "builtins", "xrange", "range"),
-    MovedAttribute("reload_module", "__builtin__", "importlib" if PY34 else "imp", "reload"),
-    MovedAttribute("reduce", "__builtin__", "functools"),
-    MovedAttribute("shlex_quote", "pipes", "shlex", "quote"),
-    MovedAttribute("StringIO", "StringIO", "io"),
-    MovedAttribute("UserDict", "UserDict", "collections"),
-    MovedAttribute("UserList", "UserList", "collections"),
-    MovedAttribute("UserString", "UserString", "collections"),
-    MovedAttribute("xrange", "__builtin__", "builtins", "xrange", "range"),
-    MovedAttribute("zip", "itertools", "builtins", "izip", "zip"),
-    MovedAttribute("zip_longest", "itertools", "itertools", "izip_longest", "zip_longest"),
-    MovedModule("builtins", "__builtin__"),
-    MovedModule("configparser", "ConfigParser"),
-    MovedModule("copyreg", "copy_reg"),
-    MovedModule("dbm_gnu", "gdbm", "dbm.gnu"),
-    MovedModule("_dummy_thread", "dummy_thread", "_dummy_thread"),
-    MovedModule("http_cookiejar", "cookielib", "http.cookiejar"),
-    MovedModule("http_cookies", "Cookie", "http.cookies"),
-    MovedModule("html_entities", "htmlentitydefs", "html.entities"),
-    MovedModule("html_parser", "HTMLParser", "html.parser"),
-    MovedModule("http_client", "httplib", "http.client"),
-    MovedModule("email_mime_multipart", "email.MIMEMultipart", "email.mime.multipart"),
-    MovedModule("email_mime_nonmultipart", "email.MIMENonMultipart", "email.mime.nonmultipart"),
-    MovedModule("email_mime_text", "email.MIMEText", "email.mime.text"),
-    MovedModule("email_mime_base", "email.MIMEBase", "email.mime.base"),
-    MovedModule("BaseHTTPServer", "BaseHTTPServer", "http.server"),
-    MovedModule("CGIHTTPServer", "CGIHTTPServer", "http.server"),
-    MovedModule("SimpleHTTPServer", "SimpleHTTPServer", "http.server"),
-    MovedModule("cPickle", "cPickle", "pickle"),
-    MovedModule("queue", "Queue"),
-    MovedModule("reprlib", "repr"),
-    MovedModule("socketserver", "SocketServer"),
-    MovedModule("_thread", "thread", "_thread"),
-    MovedModule("tkinter", "Tkinter"),
-    MovedModule("tkinter_dialog", "Dialog", "tkinter.dialog"),
-    MovedModule("tkinter_filedialog", "FileDialog", "tkinter.filedialog"),
-    MovedModule("tkinter_scrolledtext", "ScrolledText", "tkinter.scrolledtext"),
-    MovedModule("tkinter_simpledialog", "SimpleDialog", "tkinter.simpledialog"),
-    MovedModule("tkinter_tix", "Tix", "tkinter.tix"),
-    MovedModule("tkinter_ttk", "ttk", "tkinter.ttk"),
-    MovedModule("tkinter_constants", "Tkconstants", "tkinter.constants"),
-    MovedModule("tkinter_dnd", "Tkdnd", "tkinter.dnd"),
-    MovedModule("tkinter_colorchooser", "tkColorChooser",
-                "tkinter.colorchooser"),
-    MovedModule("tkinter_commondialog", "tkCommonDialog",
-                "tkinter.commondialog"),
-    MovedModule("tkinter_tkfiledialog", "tkFileDialog", "tkinter.filedialog"),
-    MovedModule("tkinter_font", "tkFont", "tkinter.font"),
-    MovedModule("tkinter_messagebox", "tkMessageBox", "tkinter.messagebox"),
-    MovedModule("tkinter_tksimpledialog", "tkSimpleDialog",
-                "tkinter.simpledialog"),
-    MovedModule("urllib_parse", __name__ + ".moves.urllib_parse", "urllib.parse"),
-    MovedModule("urllib_error", __name__ + ".moves.urllib_error", "urllib.error"),
-    MovedModule("urllib", __name__ + ".moves.urllib", __name__ + ".moves.urllib"),
-    MovedModule("urllib_robotparser", "robotparser", "urllib.robotparser"),
-    MovedModule("xmlrpc_client", "xmlrpclib", "xmlrpc.client"),
-    MovedModule("xmlrpc_server", "SimpleXMLRPCServer", "xmlrpc.server"),
-]
-# Add windows specific modules.
-if sys.platform == "win32":
-    _moved_attributes += [
-        MovedModule("winreg", "_winreg"),
-    ]
-
-for attr in _moved_attributes:
-    setattr(_MovedItems, attr.name, attr)
-    if isinstance(attr, MovedModule):
-        _importer._add_module(attr, "moves." + attr.name)
-del attr
-
-_MovedItems._moved_attributes = _moved_attributes
-
-moves = _MovedItems(__name__ + ".moves")
-_importer._add_module(moves, "moves")
-
-
-class Module_six_moves_urllib_parse(_LazyModule):
-
-    """Lazy loading of moved objects in six.moves.urllib_parse"""
-
-
-_urllib_parse_moved_attributes = [
-    MovedAttribute("ParseResult", "urlparse", "urllib.parse"),
-    MovedAttribute("SplitResult", "urlparse", "urllib.parse"),
-    MovedAttribute("parse_qs", "urlparse", "urllib.parse"),
-    MovedAttribute("parse_qsl", "urlparse", "urllib.parse"),
-    MovedAttribute("urldefrag", "urlparse", "urllib.parse"),
-    MovedAttribute("urljoin", "urlparse", "urllib.parse"),
-    MovedAttribute("urlparse", "urlparse", "urllib.parse"),
-    MovedAttribute("urlsplit", "urlparse", "urllib.parse"),
-    MovedAttribute("urlunparse", "urlparse", "urllib.parse"),
-    MovedAttribute("urlunsplit", "urlparse", "urllib.parse"),
-    MovedAttribute("quote", "urllib", "urllib.parse"),
-    MovedAttribute("quote_plus", "urllib", "urllib.parse"),
-    MovedAttribute("unquote", "urllib", "urllib.parse"),
-    MovedAttribute("unquote_plus", "urllib", "urllib.parse"),
-    MovedAttribute("urlencode", "urllib", "urllib.parse"),
-    MovedAttribute("splitquery", "urllib", "urllib.parse"),
-    MovedAttribute("splittag", "urllib", "urllib.parse"),
-    MovedAttribute("splituser", "urllib", "urllib.parse"),
-    MovedAttribute("uses_fragment", "urlparse", "urllib.parse"),
-    MovedAttribute("uses_netloc", "urlparse", "urllib.parse"),
-    MovedAttribute("uses_params", "urlparse", "urllib.parse"),
-    MovedAttribute("uses_query", "urlparse", "urllib.parse"),
-    MovedAttribute("uses_relative", "urlparse", "urllib.parse"),
-]
-for attr in _urllib_parse_moved_attributes:
-    setattr(Module_six_moves_urllib_parse, attr.name, attr)
-del attr
-
-Module_six_moves_urllib_parse._moved_attributes = _urllib_parse_moved_attributes
-
-_importer._add_module(Module_six_moves_urllib_parse(__name__ + ".moves.urllib_parse"),
-                      "moves.urllib_parse", "moves.urllib.parse")
-
-
-class Module_six_moves_urllib_error(_LazyModule):
-
-    """Lazy loading of moved objects in six.moves.urllib_error"""
-
-
-_urllib_error_moved_attributes = [
-    MovedAttribute("URLError", "urllib2", "urllib.error"),
-    MovedAttribute("HTTPError", "urllib2", "urllib.error"),
-    MovedAttribute("ContentTooShortError", "urllib", "urllib.error"),
-]
-for attr in _urllib_error_moved_attributes:
-    setattr(Module_six_moves_urllib_error, attr.name, attr)
-del attr
-
-Module_six_moves_urllib_error._moved_attributes = _urllib_error_moved_attributes
-
-_importer._add_module(Module_six_moves_urllib_error(__name__ + ".moves.urllib.error"),
-                      "moves.urllib_error", "moves.urllib.error")
-
-
-class Module_six_moves_urllib_request(_LazyModule):
-
-    """Lazy loading of moved objects in six.moves.urllib_request"""
-
-
-_urllib_request_moved_attributes = [
-    MovedAttribute("urlopen", "urllib2", "urllib.request"),
-    MovedAttribute("install_opener", "urllib2", "urllib.request"),
-    MovedAttribute("build_opener", "urllib2", "urllib.request"),
-    MovedAttribute("pathname2url", "urllib", "urllib.request"),
-    MovedAttribute("url2pathname", "urllib", "urllib.request"),
-    MovedAttribute("getproxies", "urllib", "urllib.request"),
-    MovedAttribute("Request", "urllib2", "urllib.request"),
-    MovedAttribute("OpenerDirector", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPDefaultErrorHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPRedirectHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPCookieProcessor", "urllib2", "urllib.request"),
-    MovedAttribute("ProxyHandler", "urllib2", "urllib.request"),
-    MovedAttribute("BaseHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPPasswordMgr", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPPasswordMgrWithDefaultRealm", "urllib2", "urllib.request"),
-    MovedAttribute("AbstractBasicAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPBasicAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("ProxyBasicAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("AbstractDigestAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPDigestAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("ProxyDigestAuthHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPSHandler", "urllib2", "urllib.request"),
-    MovedAttribute("FileHandler", "urllib2", "urllib.request"),
-    MovedAttribute("FTPHandler", "urllib2", "urllib.request"),
-    MovedAttribute("CacheFTPHandler", "urllib2", "urllib.request"),
-    MovedAttribute("UnknownHandler", "urllib2", "urllib.request"),
-    MovedAttribute("HTTPErrorProcessor", "urllib2", "urllib.request"),
-    MovedAttribute("urlretrieve", "urllib", "urllib.request"),
-    MovedAttribute("urlcleanup", "urllib", "urllib.request"),
-    MovedAttribute("URLopener", "urllib", "urllib.request"),
-    MovedAttribute("FancyURLopener", "urllib", "urllib.request"),
-    MovedAttribute("proxy_bypass", "urllib", "urllib.request"),
-]
-for attr in _urllib_request_moved_attributes:
-    setattr(Module_six_moves_urllib_request, attr.name, attr)
-del attr
-
-Module_six_moves_urllib_request._moved_attributes = _urllib_request_moved_attributes
-
-_importer._add_module(Module_six_moves_urllib_request(__name__ + ".moves.urllib.request"),
-                      "moves.urllib_request", "moves.urllib.request")
-
-
-class Module_six_moves_urllib_response(_LazyModule):
-
-    """Lazy loading of moved objects in six.moves.urllib_response"""
-
-
-_urllib_response_moved_attributes = [
-    MovedAttribute("addbase", "urllib", "urllib.response"),
-    MovedAttribute("addclosehook", "urllib", "urllib.response"),
-    MovedAttribute("addinfo", "urllib", "urllib.response"),
-    MovedAttribute("addinfourl", "urllib", "urllib.response"),
-]
-for attr in _urllib_response_moved_attributes:
-    setattr(Module_six_moves_urllib_response, attr.name, attr)
-del attr
-
-Module_six_moves_urllib_response._moved_attributes = _urllib_response_moved_attributes
-
-_importer._add_module(Module_six_moves_urllib_response(__name__ + ".moves.urllib.response"),
-                      "moves.urllib_response", "moves.urllib.response")
-
-
-class Module_six_moves_urllib_robotparser(_LazyModule):
-
-    """Lazy loading of moved objects in six.moves.urllib_robotparser"""
-
-
-_urllib_robotparser_moved_attributes = [
-    MovedAttribute("RobotFileParser", "robotparser", "urllib.robotparser"),
-]
-for attr in _urllib_robotparser_moved_attributes:
-    setattr(Module_six_moves_urllib_robotparser, attr.name, attr)
-del attr
-
-Module_six_moves_urllib_robotparser._moved_attributes = _urllib_robotparser_moved_attributes
-
-_importer._add_module(Module_six_moves_urllib_robotparser(__name__ + ".moves.urllib.robotparser"),
-                      "moves.urllib_robotparser", "moves.urllib.robotparser")
-
-
-class Module_six_moves_urllib(types.ModuleType):
-
-    """Create a six.moves.urllib namespace that resembles the Python 3 namespace"""
-    __path__ = []  # mark as package
-    parse = _importer._get_module("moves.urllib_parse")
-    error = _importer._get_module("moves.urllib_error")
-    request = _importer._get_module("moves.urllib_request")
-    response = _importer._get_module("moves.urllib_response")
-    robotparser = _importer._get_module("moves.urllib_robotparser")
-
-    def __dir__(self):
-        return ['parse', 'error', 'request', 'response', 'robotparser']
-
-_importer._add_module(Module_six_moves_urllib(__name__ + ".moves.urllib"),
-                      "moves.urllib")
-
-
-def add_move(move):
-    """Add an item to six.moves."""
-    setattr(_MovedItems, move.name, move)
-
-
-def remove_move(name):
-    """Remove item from six.moves."""
-    try:
-        delattr(_MovedItems, name)
-    except AttributeError:
-        try:
-            del moves.__dict__[name]
-        except KeyError:
-            raise AttributeError("no such move, %r" % (name,))
-
-
-if PY3:
-    _meth_func = "__func__"
-    _meth_self = "__self__"
-
-    _func_closure = "__closure__"
-    _func_code = "__code__"
-    _func_defaults = "__defaults__"
-    _func_globals = "__globals__"
-else:
-    _meth_func = "im_func"
-    _meth_self = "im_self"
-
-    _func_closure = "func_closure"
-    _func_code = "func_code"
-    _func_defaults = "func_defaults"
-    _func_globals = "func_globals"
-
-
-try:
-    advance_iterator = next
-except NameError:
-    def advance_iterator(it):
-        return it.next()
-next = advance_iterator
-
-
-try:
-    callable = callable
-except NameError:
-    def callable(obj):
-        return any("__call__" in klass.__dict__ for klass in type(obj).__mro__)
-
-
-if PY3:
-    def get_unbound_function(unbound):
-        return unbound
-
-    create_bound_method = types.MethodType
-
-    def create_unbound_method(func, cls):
-        return func
-
-    Iterator = object
-else:
-    def get_unbound_function(unbound):
-        return unbound.im_func
-
-    def create_bound_method(func, obj):
-        return types.MethodType(func, obj, obj.__class__)
-
-    def create_unbound_method(func, cls):
-        return types.MethodType(func, None, cls)
-
-    class Iterator(object):
-
-        def next(self):
-            return type(self).__next__(self)
-
-    callable = callable
-_add_doc(get_unbound_function,
-         """Get the function out of a possibly unbound function""")
-
-
-get_method_function = operator.attrgetter(_meth_func)
-get_method_self = operator.attrgetter(_meth_self)
-get_function_closure = operator.attrgetter(_func_closure)
-get_function_code = operator.attrgetter(_func_code)
-get_function_defaults = operator.attrgetter(_func_defaults)
-get_function_globals = operator.attrgetter(_func_globals)
-
-
-if PY3:
-    def iterkeys(d, **kw):
-        return iter(d.keys(**kw))
-
-    def itervalues(d, **kw):
-        return iter(d.values(**kw))
-
-    def iteritems(d, **kw):
-        return iter(d.items(**kw))
-
-    def iterlists(d, **kw):
-        return iter(d.lists(**kw))
-
-    viewkeys = operator.methodcaller("keys")
-
-    viewvalues = operator.methodcaller("values")
-
-    viewitems = operator.methodcaller("items")
-else:
-    def iterkeys(d, **kw):
-        return d.iterkeys(**kw)
-
-    def itervalues(d, **kw):
-        return d.itervalues(**kw)
-
-    def iteritems(d, **kw):
-        return d.iteritems(**kw)
-
-    def iterlists(d, **kw):
-        return d.iterlists(**kw)
-
-    viewkeys = operator.methodcaller("viewkeys")
-
-    viewvalues = operator.methodcaller("viewvalues")
-
-    viewitems = operator.methodcaller("viewitems")
-
-_add_doc(iterkeys, "Return an iterator over the keys of a dictionary.")
-_add_doc(itervalues, "Return an iterator over the values of a dictionary.")
-_add_doc(iteritems,
-         "Return an iterator over the (key, value) pairs of a dictionary.")
-_add_doc(iterlists,
-         "Return an iterator over the (key, [values]) pairs of a dictionary.")
-
-
-if PY3:
-    def b(s):
-        return s.encode("latin-1")
-
-    def u(s):
-        return s
-    unichr = chr
-    import struct
-    int2byte = struct.Struct(">B").pack
-    del struct
-    byte2int = operator.itemgetter(0)
-    indexbytes = operator.getitem
-    iterbytes = iter
-    import io
-    StringIO = io.StringIO
-    BytesIO = io.BytesIO
-    _assertCountEqual = "assertCountEqual"
-    if sys.version_info[1] <= 1:
-        _assertRaisesRegex = "assertRaisesRegexp"
-        _assertRegex = "assertRegexpMatches"
-    else:
-        _assertRaisesRegex = "assertRaisesRegex"
-        _assertRegex = "assertRegex"
-else:
-    def b(s):
-        return s
-    # Workaround for standalone backslash
-
-    def u(s):
-        return unicode(s.replace(r'\\', r'\\\\'), "unicode_escape")
-    unichr = unichr
-    int2byte = chr
-
-    def byte2int(bs):
-        return ord(bs[0])
-
-    def indexbytes(buf, i):
-        return ord(buf[i])
-    iterbytes = functools.partial(itertools.imap, ord)
-    import StringIO
-    StringIO = BytesIO = StringIO.StringIO
-    _assertCountEqual = "assertItemsEqual"
-    _assertRaisesRegex = "assertRaisesRegexp"
-    _assertRegex = "assertRegexpMatches"
-_add_doc(b, """Byte literal""")
-_add_doc(u, """Text literal""")
-
-
-def assertCountEqual(self, *args, **kwargs):
-    return getattr(self, _assertCountEqual)(*args, **kwargs)
-
-
-def assertRaisesRegex(self, *args, **kwargs):
-    return getattr(self, _assertRaisesRegex)(*args, **kwargs)
-
-
-def assertRegex(self, *args, **kwargs):
-    return getattr(self, _assertRegex)(*args, **kwargs)
-
-
-if PY3:
-    exec_ = getattr(moves.builtins, "exec")
-
-    def reraise(tp, value, tb=None):
-        if value is None:
-            value = tp()
-        if value.__traceback__ is not tb:
-            raise value.with_traceback(tb)
-        raise value
-
-else:
-    def exec_(_code_, _globs_=None, _locs_=None):
-        """Execute code in a namespace."""
-        if _globs_ is None:
-            frame = sys._getframe(1)
-            _globs_ = frame.f_globals
-            if _locs_ is None:
-                _locs_ = frame.f_locals
-            del frame
-        elif _locs_ is None:
-            _locs_ = _globs_
-        exec("""exec _code_ in _globs_, _locs_""")
-
-    exec_("""def reraise(tp, value, tb=None):
-    raise tp, value, tb
-""")
-
-
-if sys.version_info[:2] == (3, 2):
-    exec_("""def raise_from(value, from_value):
-    if from_value is None:
-        raise value
-    raise value from from_value
-""")
-elif sys.version_info[:2] > (3, 2):
-    exec_("""def raise_from(value, from_value):
-    raise value from from_value
-""")
-else:
-    def raise_from(value, from_value):
-        raise value
-
-
-print_ = getattr(moves.builtins, "print", None)
-if print_ is None:
-    def print_(*args, **kwargs):
-        """The new-style print function for Python 2.4 and 2.5."""
-        fp = kwargs.pop("file", sys.stdout)
-        if fp is None:
-            return
-
-        def write(data):
-            if not isinstance(data, basestring):
-                data = str(data)
-            # If the file has an encoding, encode unicode with it.
-            if (isinstance(fp, file) and
-                    isinstance(data, unicode) and
-                    fp.encoding is not None):
-                errors = getattr(fp, "errors", None)
-                if errors is None:
-                    errors = "strict"
-                data = data.encode(fp.encoding, errors)
-            fp.write(data)
-        want_unicode = False
-        sep = kwargs.pop("sep", None)
-        if sep is not None:
-            if isinstance(sep, unicode):
-                want_unicode = True
-            elif not isinstance(sep, str):
-                raise TypeError("sep must be None or a string")
-        end = kwargs.pop("end", None)
-        if end is not None:
-            if isinstance(end, unicode):
-                want_unicode = True
-            elif not isinstance(end, str):
-                raise TypeError("end must be None or a string")
-        if kwargs:
-            raise TypeError("invalid keyword arguments to print()")
-        if not want_unicode:
-            for arg in args:
-                if isinstance(arg, unicode):
-                    want_unicode = True
-                    break
-        if want_unicode:
-            newline = unicode("\n")
-            space = unicode(" ")
-        else:
-            newline = "\n"
-            space = " "
-        if sep is None:
-            sep = space
-        if end is None:
-            end = newline
-        for i, arg in enumerate(args):
-            if i:
-                write(sep)
-            write(arg)
-        write(end)
-if sys.version_info[:2] < (3, 3):
-    _print = print_
-
-    def print_(*args, **kwargs):
-        fp = kwargs.get("file", sys.stdout)
-        flush = kwargs.pop("flush", False)
-        _print(*args, **kwargs)
-        if flush and fp is not None:
-            fp.flush()
-
-_add_doc(reraise, """Reraise an exception.""")
-
-if sys.version_info[0:2] < (3, 4):
-    def wraps(wrapped, assigned=functools.WRAPPER_ASSIGNMENTS,
-              updated=functools.WRAPPER_UPDATES):
-        def wrapper(f):
-            f = functools.wraps(wrapped, assigned, updated)(f)
-            f.__wrapped__ = wrapped
-            return f
-        return wrapper
-else:
-    wraps = functools.wraps
-
-
-def with_metaclass(meta, *bases):
-    """Create a base class with a metaclass."""
-    # This requires a bit of explanation: the basic idea is to make a dummy
-    # metaclass for one level of class instantiation that replaces itself with
-    # the actual metaclass.
-    class metaclass(meta):
-
-        def __new__(cls, name, this_bases, d):
-            return meta(name, bases, d)
-    return type.__new__(metaclass, 'temporary_class', (), {})
-
-
-def add_metaclass(metaclass):
-    """Class decorator for creating a class with a metaclass."""
-    def wrapper(cls):
-        orig_vars = cls.__dict__.copy()
-        slots = orig_vars.get('__slots__')
-        if slots is not None:
-            if isinstance(slots, str):
-                slots = [slots]
-            for slots_var in slots:
-                orig_vars.pop(slots_var)
-        orig_vars.pop('__dict__', None)
-        orig_vars.pop('__weakref__', None)
-        return metaclass(cls.__name__, cls.__bases__, orig_vars)
-    return wrapper
-
-
-def python_2_unicode_compatible(klass):
-    """
-    A decorator that defines __unicode__ and __str__ methods under Python 2.
-    Under Python 3 it does nothing.
-
-    To support Python 2 and 3 with a single code base, define a __str__ method
-    returning text and apply this decorator to the class.
-    """
-    if PY2:
-        if '__str__' not in klass.__dict__:
-            raise ValueError("@python_2_unicode_compatible cannot be applied "
-                             "to %s because it doesn't define __str__()." %
-                             klass.__name__)
-        klass.__unicode__ = klass.__str__
-        klass.__str__ = lambda self: self.__unicode__().encode('utf-8')
-    return klass
-
-
-# Complete the moves implementation.
-# This code is at the end of this module to speed up module loading.
-# Turn this module into a package.
-__path__ = []  # required for PEP 302 and PEP 451
-__package__ = __name__  # see PEP 366 @ReservedAssignment
-if globals().get("__spec__") is not None:
-    __spec__.submodule_search_locations = []  # PEP 451 @UndefinedVariable
-# Remove other six meta path importers, since they cause problems. This can
-# happen if six is removed from sys.modules and then reloaded. (Setuptools does
-# this for some reason.)
-if sys.meta_path:
-    for i, importer in enumerate(sys.meta_path):
-        # Here's some real nastiness: Another "instance" of the six module might
-        # be floating around. Therefore, we can't use isinstance() to check for
-        # the six meta path importer, since the other six instance will have
-        # inserted an importer with different class.
-        if (type(importer).__name__ == "_SixMetaPathImporter" and
-                importer.name == __name__):
-            del sys.meta_path[i]
-            break
-    del i, importer
-# Finally, add the importer to the meta path import hook.
-sys.meta_path.append(_importer)
diff --git a/collectors/python.d.plugin/python_modules/urllib3/packages/ssl_match_hostname/__init__.py b/collectors/python.d.plugin/python_modules/urllib3/packages/ssl_match_hostname/__init__.py
deleted file mode 100644
index 2aeeeff91..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/packages/ssl_match_hostname/__init__.py
+++ /dev/null
@@ -1,20 +0,0 @@
-# SPDX-License-Identifier: MIT
-import sys
-
-try:
-    # Our match_hostname function is the same as 3.5's, so we only want to
-    # import the match_hostname function if it's at least that good.
-    if sys.version_info < (3, 5):
-        raise ImportError("Fallback to vendored code")
-
-    from ssl import CertificateError, match_hostname
-except ImportError:
-    try:
-        # Backport of the function from a pypi module
-        from backports.ssl_match_hostname import CertificateError, match_hostname
-    except ImportError:
-        # Our vendored copy
-        from ._implementation import CertificateError, match_hostname
-
-# Not needed, but documenting what we provide.
-__all__ = ('CertificateError', 'match_hostname')
diff --git a/collectors/python.d.plugin/python_modules/urllib3/packages/ssl_match_hostname/_implementation.py b/collectors/python.d.plugin/python_modules/urllib3/packages/ssl_match_hostname/_implementation.py
deleted file mode 100644
index 647e081da..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/packages/ssl_match_hostname/_implementation.py
+++ /dev/null
@@ -1,156 +0,0 @@
-"""The match_hostname() function from Python 3.3.3, essential when using SSL."""
-
-# SPDX-License-Identifier: Python-2.0
-
-import re
-import sys
-
-# ipaddress has been backported to 2.6+ in pypi.  If it is installed on the
-# system, use it to handle IPAddress ServerAltnames (this was added in
-# python-3.5) otherwise only do DNS matching.  This allows
-# backports.ssl_match_hostname to continue to be used all the way back to
-# python-2.4.
-try:
-    import ipaddress
-except ImportError:
-    ipaddress = None
-
-__version__ = '3.5.0.1'
-
-
-class CertificateError(ValueError):
-    pass
-
-
-def _dnsname_match(dn, hostname, max_wildcards=1):
-    """Matching according to RFC 6125, section 6.4.3
-
-    http://tools.ietf.org/html/rfc6125#section-6.4.3
-    """
-    pats = []
-    if not dn:
-        return False
-
-    # Ported from python3-syntax:
-    # leftmost, *remainder = dn.split(r'.')
-    parts = dn.split(r'.')
-    leftmost = parts[0]
-    remainder = parts[1:]
-
-    wildcards = leftmost.count('*')
-    if wildcards > max_wildcards:
-        # Issue #17980: avoid denials of service by refusing more
-        # than one wildcard per fragment.  A survey of established
-        # policy among SSL implementations showed it to be a
-        # reasonable choice.
-        raise CertificateError(
-            "too many wildcards in certificate DNS name: " + repr(dn))
-
-    # speed up common case w/o wildcards
-    if not wildcards:
-        return dn.lower() == hostname.lower()
-
-    # RFC 6125, section 6.4.3, subitem 1.
-    # The client SHOULD NOT attempt to match a presented identifier in which
-    # the wildcard character comprises a label other than the left-most label.
-    if leftmost == '*':
-        # When '*' is a fragment by itself, it matches a non-empty dotless
-        # fragment.
-        pats.append('[^.]+')
-    elif leftmost.startswith('xn--') or hostname.startswith('xn--'):
-        # RFC 6125, section 6.4.3, subitem 3.
-        # The client SHOULD NOT attempt to match a presented identifier
-        # where the wildcard character is embedded within an A-label or
-        # U-label of an internationalized domain name.
-        pats.append(re.escape(leftmost))
-    else:
-        # Otherwise, '*' matches any dotless string, e.g. www*
-        pats.append(re.escape(leftmost).replace(r'\*', '[^.]*'))
-
-    # add the remaining fragments, ignore any wildcards
-    for frag in remainder:
-        pats.append(re.escape(frag))
-
-    pat = re.compile(r'\A' + r'\.'.join(pats) + r'\Z', re.IGNORECASE)
-    return pat.match(hostname)
-
-
-def _to_unicode(obj):
-    if isinstance(obj, str) and sys.version_info < (3,):
-        obj = unicode(obj, encoding='ascii', errors='strict')
-    return obj
-
-def _ipaddress_match(ipname, host_ip):
-    """Exact matching of IP addresses.
-
-    RFC 6125 explicitly doesn't define an algorithm for this
-    (section 1.7.2 - "Out of Scope").
-    """
-    # OpenSSL may add a trailing newline to a subjectAltName's IP address
-    # Divergence from upstream: ipaddress can't handle byte str
-    ip = ipaddress.ip_address(_to_unicode(ipname).rstrip())
-    return ip == host_ip
-
-
-def match_hostname(cert, hostname):
-    """Verify that *cert* (in decoded format as returned by
-    SSLSocket.getpeercert()) matches the *hostname*.  RFC 2818 and RFC 6125
-    rules are followed, but IP addresses are not accepted for *hostname*.
-
-    CertificateError is raised on failure. On success, the function
-    returns nothing.
-    """
-    if not cert:
-        raise ValueError("empty or no certificate, match_hostname needs a "
-                         "SSL socket or SSL context with either "
-                         "CERT_OPTIONAL or CERT_REQUIRED")
-    try:
-        # Divergence from upstream: ipaddress can't handle byte str
-        host_ip = ipaddress.ip_address(_to_unicode(hostname))
-    except ValueError:
-        # Not an IP address (common case)
-        host_ip = None
-    except UnicodeError:
-        # Divergence from upstream: Have to deal with ipaddress not taking
-        # byte strings.  addresses should be all ascii, so we consider it not
-        # an ipaddress in this case
-        host_ip = None
-    except AttributeError:
-        # Divergence from upstream: Make ipaddress library optional
-        if ipaddress is None:
-            host_ip = None
-        else:
-            raise
-    dnsnames = []
-    san = cert.get('subjectAltName', ())
-    for key, value in san:
-        if key == 'DNS':
-            if host_ip is None and _dnsname_match(value, hostname):
-                return
-            dnsnames.append(value)
-        elif key == 'IP Address':
-            if host_ip is not None and _ipaddress_match(value, host_ip):
-                return
-            dnsnames.append(value)
-    if not dnsnames:
-        # The subject is only checked when there is no dNSName entry
-        # in subjectAltName
-        for sub in cert.get('subject', ()):
-            for key, value in sub:
-                # XXX according to RFC 2818, the most specific Common Name
-                # must be used.
-                if key == 'commonName':
-                    if _dnsname_match(value, hostname):
-                        return
-                    dnsnames.append(value)
-    if len(dnsnames) > 1:
-        raise CertificateError("hostname %r "
-            "doesn't match either of %s"
-            % (hostname, ', '.join(map(repr, dnsnames))))
-    elif len(dnsnames) == 1:
-        raise CertificateError("hostname %r "
-            "doesn't match %r"
-            % (hostname, dnsnames[0]))
-    else:
-        raise CertificateError("no appropriate commonName or "
-            "subjectAltName fields were found")
diff --git a/collectors/python.d.plugin/python_modules/urllib3/poolmanager.py b/collectors/python.d.plugin/python_modules/urllib3/poolmanager.py
deleted file mode 100644
index adea9bc01..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/poolmanager.py
+++ /dev/null
@@ -1,441 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-import collections
-import functools
-import logging
-
-from ._collections import RecentlyUsedContainer
-from .connectionpool import HTTPConnectionPool, HTTPSConnectionPool
-from .connectionpool import port_by_scheme
-from .exceptions import LocationValueError, MaxRetryError, ProxySchemeUnknown
-from .packages.six.moves.urllib.parse import urljoin
-from .request import RequestMethods
-from .util.url import parse_url
-from .util.retry import Retry
-
-
-__all__ = ['PoolManager', 'ProxyManager', 'proxy_from_url']
-
-
-log = logging.getLogger(__name__)
-
-SSL_KEYWORDS = ('key_file', 'cert_file', 'cert_reqs', 'ca_certs',
-                'ssl_version', 'ca_cert_dir', 'ssl_context')
-
-# All known keyword arguments that could be provided to the pool manager, its
-# pools, or the underlying connections. This is used to construct a pool key.
-_key_fields = (
-    'key_scheme',  # str
-    'key_host',  # str
-    'key_port',  # int
-    'key_timeout',  # int or float or Timeout
-    'key_retries',  # int or Retry
-    'key_strict',  # bool
-    'key_block',  # bool
-    'key_source_address',  # str
-    'key_key_file',  # str
-    'key_cert_file',  # str
-    'key_cert_reqs',  # str
-    'key_ca_certs',  # str
-    'key_ssl_version',  # str
-    'key_ca_cert_dir',  # str
-    'key_ssl_context',  # instance of ssl.SSLContext or urllib3.util.ssl_.SSLContext
-    'key_maxsize',  # int
-    'key_headers',  # dict
-    'key__proxy',  # parsed proxy url
-    'key__proxy_headers',  # dict
-    'key_socket_options',  # list of (level (int), optname (int), value (int or str)) tuples
-    'key__socks_options',  # dict
-    'key_assert_hostname',  # bool or string
-    'key_assert_fingerprint',  # str
-)
-
-#: The namedtuple class used to construct keys for the connection pool.
-#: All custom key schemes should include the fields in this key at a minimum.
-PoolKey = collections.namedtuple('PoolKey', _key_fields)
-
-
-def _default_key_normalizer(key_class, request_context):
-    """
-    Create a pool key out of a request context dictionary.
-
-    According to RFC 3986, both the scheme and host are case-insensitive.
-    Therefore, this function normalizes both before constructing the pool
-    key for an HTTPS request. If you wish to change this behaviour, provide
-    alternate callables to ``key_fn_by_scheme``.
-
-    :param key_class:
-        The class to use when constructing the key. This should be a namedtuple
-        with the ``scheme`` and ``host`` keys at a minimum.
-    :type  key_class: namedtuple
-    :param request_context:
-        A dictionary-like object that contain the context for a request.
-    :type  request_context: dict
-
-    :return: A namedtuple that can be used as a connection pool key.
-    :rtype:  PoolKey
-    """
-    # Since we mutate the dictionary, make a copy first
-    context = request_context.copy()
-    context['scheme'] = context['scheme'].lower()
-    context['host'] = context['host'].lower()
-
-    # These are both dictionaries and need to be transformed into frozensets
-    for key in ('headers', '_proxy_headers', '_socks_options'):
-        if key in context and context[key] is not None:
-            context[key] = frozenset(context[key].items())
-
-    # The socket_options key may be a list and needs to be transformed into a
-    # tuple.
-    socket_opts = context.get('socket_options')
-    if socket_opts is not None:
-        context['socket_options'] = tuple(socket_opts)
-
-    # Map the kwargs to the names in the namedtuple - this is necessary since
-    # namedtuples can't have fields starting with '_'.
-    for key in list(context.keys()):
-        context['key_' + key] = context.pop(key)
-
-    # Default to ``None`` for keys missing from the context
-    for field in key_class._fields:
-        if field not in context:
-            context[field] = None
-
-    return key_class(**context)
-
-
-#: A dictionary that maps a scheme to a callable that creates a pool key.
-#: This can be used to alter the way pool keys are constructed, if desired.
-#: Each PoolManager makes a copy of this dictionary so they can be configured
-#: globally here, or individually on the instance.
-key_fn_by_scheme = {
-    'http': functools.partial(_default_key_normalizer, PoolKey),
-    'https': functools.partial(_default_key_normalizer, PoolKey),
-}
-
-pool_classes_by_scheme = {
-    'http': HTTPConnectionPool,
-    'https': HTTPSConnectionPool,
-}
-
-
-class PoolManager(RequestMethods):
-    """
-    Allows for arbitrary requests while transparently keeping track of
-    necessary connection pools for you.
-
-    :param num_pools:
-        Number of connection pools to cache before discarding the least
-        recently used pool.
-
-    :param headers:
-        Headers to include with all requests, unless other headers are given
-        explicitly.
-
-    :param \\**connection_pool_kw:
-        Additional parameters are used to create fresh
-        :class:`urllib3.connectionpool.ConnectionPool` instances.
-
-    Example::
-
-        >>> manager = PoolManager(num_pools=2)
-        >>> r = manager.request('GET', 'http://google.com/')
-        >>> r = manager.request('GET', 'http://google.com/mail')
-        >>> r = manager.request('GET', 'http://yahoo.com/')
-        >>> len(manager.pools)
-        2
-
-    """
-
-    proxy = None
-
-    def __init__(self, num_pools=10, headers=None, **connection_pool_kw):
-        RequestMethods.__init__(self, headers)
-        self.connection_pool_kw = connection_pool_kw
-        self.pools = RecentlyUsedContainer(num_pools,
-                                           dispose_func=lambda p: p.close())
-
-        # Locally set the pool classes and keys so other PoolManagers can
-        # override them.
-        self.pool_classes_by_scheme = pool_classes_by_scheme
-        self.key_fn_by_scheme = key_fn_by_scheme.copy()
-
-    def __enter__(self):
-        return self
-
-    def __exit__(self, exc_type, exc_val, exc_tb):
-        self.clear()
-        # Return False to re-raise any potential exceptions
-        return False
-
-    def _new_pool(self, scheme, host, port, request_context=None):
-        """
-        Create a new :class:`ConnectionPool` based on host, port, scheme, and
-        any additional pool keyword arguments.
-
-        If ``request_context`` is provided, it is provided as keyword arguments
-        to the pool class used. This method is used to actually create the
-        connection pools handed out by :meth:`connection_from_url` and
-        companion methods. It is intended to be overridden for customization.
-        """
-        pool_cls = self.pool_classes_by_scheme[scheme]
-        if request_context is None:
-            request_context = self.connection_pool_kw.copy()
-
-        # Although the context has everything necessary to create the pool,
-        # this function has historically only used the scheme, host, and port
-        # in the positional args. When an API change is acceptable these can
-        # be removed.
-        for key in ('scheme', 'host', 'port'):
-            request_context.pop(key, None)
-
-        if scheme == 'http':
-            for kw in SSL_KEYWORDS:
-                request_context.pop(kw, None)
-
-        return pool_cls(host, port, **request_context)
-
-    def clear(self):
-        """
-        Empty our store of pools and direct them all to close.
-
-        This will not affect in-flight connections, but they will not be
-        re-used after completion.
-        """
-        self.pools.clear()
-
-    def connection_from_host(self, host, port=None, scheme='http', pool_kwargs=None):
-        """
-        Get a :class:`ConnectionPool` based on the host, port, and scheme.
-
-        If ``port`` isn't given, it will be derived from the ``scheme`` using
-        ``urllib3.connectionpool.port_by_scheme``. If ``pool_kwargs`` is
-        provided, it is merged with the instance's ``connection_pool_kw``
-        variable and used to create the new connection pool, if one is
-        needed.
-        """
-
-        if not host:
-            raise LocationValueError("No host specified.")
-
-        request_context = self._merge_pool_kwargs(pool_kwargs)
-        request_context['scheme'] = scheme or 'http'
-        if not port:
-            port = port_by_scheme.get(request_context['scheme'].lower(), 80)
-        request_context['port'] = port
-        request_context['host'] = host
-
-        return self.connection_from_context(request_context)
-
-    def connection_from_context(self, request_context):
-        """
-        Get a :class:`ConnectionPool` based on the request context.
-
-        ``request_context`` must at least contain the ``scheme`` key and its
-        value must be a key in ``key_fn_by_scheme`` instance variable.
-        """
-        scheme = request_context['scheme'].lower()
-        pool_key_constructor = self.key_fn_by_scheme[scheme]
-        pool_key = pool_key_constructor(request_context)
-
-        return self.connection_from_pool_key(pool_key, request_context=request_context)
-
-    def connection_from_pool_key(self, pool_key, request_context=None):
-        """
-        Get a :class:`ConnectionPool` based on the provided pool key.
-
-        ``pool_key`` should be a namedtuple that only contains immutable
-        objects. At a minimum it must have the ``scheme``, ``host``, and
-        ``port`` fields.
-        """
-        with self.pools.lock:
-            # If the scheme, host, or port doesn't match existing open
-            # connections, open a new ConnectionPool.
-            pool = self.pools.get(pool_key)
-            if pool:
-                return pool
-
-            # Make a fresh ConnectionPool of the desired type
-            scheme = request_context['scheme']
-            host = request_context['host']
-            port = request_context['port']
-            pool = self._new_pool(scheme, host, port, request_context=request_context)
-            self.pools[pool_key] = pool
-
-        return pool
-
-    def connection_from_url(self, url, pool_kwargs=None):
-        """
-        Similar to :func:`urllib3.connectionpool.connection_from_url`.
-
-        If ``pool_kwargs`` is not provided and a new pool needs to be
-        constructed, ``self.connection_pool_kw`` is used to initialize
-        the :class:`urllib3.connectionpool.ConnectionPool`. If ``pool_kwargs``
-        is provided, it is used instead. Note that if a new pool does not
-        need to be created for the request, the provided ``pool_kwargs`` are
-        not used.
-        """
-        u = parse_url(url)
-        return self.connection_from_host(u.host, port=u.port, scheme=u.scheme,
-                                         pool_kwargs=pool_kwargs)
-
-    def _merge_pool_kwargs(self, override):
-        """
-        Merge a dictionary of override values for self.connection_pool_kw.
-
-        This does not modify self.connection_pool_kw and returns a new dict.
-        Any keys in the override dictionary with a value of ``None`` are
-        removed from the merged dictionary.
-        """
-        base_pool_kwargs = self.connection_pool_kw.copy()
-        if override:
-            for key, value in override.items():
-                if value is None:
-                    try:
-                        del base_pool_kwargs[key]
-                    except KeyError:
-                        pass
-                else:
-                    base_pool_kwargs[key] = value
-        return base_pool_kwargs
-
-    def urlopen(self, method, url, redirect=True, **kw):
-        """
-        Same as :meth:`urllib3.connectionpool.HTTPConnectionPool.urlopen`
-        with custom cross-host redirect logic and only sends the request-uri
-        portion of the ``url``.
-
-        The given ``url`` parameter must be absolute, such that an appropriate
-        :class:`urllib3.connectionpool.ConnectionPool` can be chosen for it.
-        """
-        u = parse_url(url)
-        conn = self.connection_from_host(u.host, port=u.port, scheme=u.scheme)
-
-        kw['assert_same_host'] = False
-        kw['redirect'] = False
-        if 'headers' not in kw:
-            kw['headers'] = self.headers
-
-        if self.proxy is not None and u.scheme == "http":
-            response = conn.urlopen(method, url, **kw)
-        else:
-            response = conn.urlopen(method, u.request_uri, **kw)
-
-        redirect_location = redirect and response.get_redirect_location()
-        if not redirect_location:
-            return response
-
-        # Support relative URLs for redirecting.
-        redirect_location = urljoin(url, redirect_location)
-
-        # RFC 7231, Section 6.4.4
-        if response.status == 303:
-            method = 'GET'
-
-        retries = kw.get('retries')
-        if not isinstance(retries, Retry):
-            retries = Retry.from_int(retries, redirect=redirect)
-
-        try:
-            retries = retries.increment(method, url, response=response, _pool=conn)
-        except MaxRetryError:
-            if retries.raise_on_redirect:
-                raise
-            return response
-
-        kw['retries'] = retries
-        kw['redirect'] = redirect
-
-        log.info("Redirecting %s -> %s", url, redirect_location)
-        return self.urlopen(method, redirect_location, **kw)
-
-
-class ProxyManager(PoolManager):
-    """
-    Behaves just like :class:`PoolManager`, but sends all requests through
-    the defined proxy, using the CONNECT method for HTTPS URLs.
-
-    :param proxy_url:
-        The URL of the proxy to be used.
-
-    :param proxy_headers:
-        A dictionary contaning headers that will be sent to the proxy. In case
-        of HTTP they are being sent with each request, while in the
-        HTTPS/CONNECT case they are sent only once. Could be used for proxy
-        authentication.
-
-    Example:
-        >>> proxy = urllib3.ProxyManager('http://localhost:3128/')
-        >>> r1 = proxy.request('GET', 'http://google.com/')
-        >>> r2 = proxy.request('GET', 'http://httpbin.org/')
-        >>> len(proxy.pools)
-        1
-        >>> r3 = proxy.request('GET', 'https://httpbin.org/')
-        >>> r4 = proxy.request('GET', 'https://twitter.com/')
-        >>> len(proxy.pools)
-        3
-
-    """
-
-    def __init__(self, proxy_url, num_pools=10, headers=None,
-                 proxy_headers=None, **connection_pool_kw):
-
-        if isinstance(proxy_url, HTTPConnectionPool):
-            proxy_url = '%s://%s:%i' % (proxy_url.scheme, proxy_url.host,
-                                        proxy_url.port)
-        proxy = parse_url(proxy_url)
-        if not proxy.port:
-            port = port_by_scheme.get(proxy.scheme, 80)
-            proxy = proxy._replace(port=port)
-
-        if proxy.scheme not in ("http", "https"):
-            raise ProxySchemeUnknown(proxy.scheme)
-
-        self.proxy = proxy
-        self.proxy_headers = proxy_headers or {}
-
-        connection_pool_kw['_proxy'] = self.proxy
-        connection_pool_kw['_proxy_headers'] = self.proxy_headers
-
-        super(ProxyManager, self).__init__(
-            num_pools, headers, **connection_pool_kw)
-
-    def connection_from_host(self, host, port=None, scheme='http', pool_kwargs=None):
-        if scheme == "https":
-            return super(ProxyManager, self).connection_from_host(
-                host, port, scheme, pool_kwargs=pool_kwargs)
-
-        return super(ProxyManager, self).connection_from_host(
-            self.proxy.host, self.proxy.port, self.proxy.scheme, pool_kwargs=pool_kwargs)
-
-    def _set_proxy_headers(self, url, headers=None):
-        """
-        Sets headers needed by proxies: specifically, the Accept and Host
-        headers. Only sets headers not provided by the user.
-        """
-        headers_ = {'Accept': '*/*'}
-
-        netloc = parse_url(url).netloc
-        if netloc:
-            headers_['Host'] = netloc
-
-        if headers:
-            headers_.update(headers)
-        return headers_
-
-    def urlopen(self, method, url, redirect=True, **kw):
-        "Same as HTTP(S)ConnectionPool.urlopen, ``url`` must be absolute."
-        u = parse_url(url)
-
-        if u.scheme == "http":
-            # For proxied HTTPS requests, httplib sets the necessary headers
-            # on the CONNECT to the proxy. For HTTP, we'll definitely
-            # need to set 'Host' at the very least.
-            headers = kw.get('headers', self.headers)
-            kw['headers'] = self._set_proxy_headers(url, headers)
-
-        return super(ProxyManager, self).urlopen(method, url, redirect=redirect, **kw)
-
-
-def proxy_from_url(url, **kw):
-    return ProxyManager(proxy_url=url, **kw)
diff --git a/collectors/python.d.plugin/python_modules/urllib3/request.py b/collectors/python.d.plugin/python_modules/urllib3/request.py
deleted file mode 100644
index f78331975..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/request.py
+++ /dev/null
@@ -1,149 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-
-from .filepost import encode_multipart_formdata
-from .packages.six.moves.urllib.parse import urlencode
-
-
-__all__ = ['RequestMethods']
-
-
-class RequestMethods(object):
-    """
-    Convenience mixin for classes who implement a :meth:`urlopen` method, such
-    as :class:`~urllib3.connectionpool.HTTPConnectionPool` and
-    :class:`~urllib3.poolmanager.PoolManager`.
-
-    Provides behavior for making common types of HTTP request methods and
-    decides which type of request field encoding to use.
-
-    Specifically,
-
-    :meth:`.request_encode_url` is for sending requests whose fields are
-    encoded in the URL (such as GET, HEAD, DELETE).
-
-    :meth:`.request_encode_body` is for sending requests whose fields are
-    encoded in the *body* of the request using multipart or www-form-urlencoded
-    (such as for POST, PUT, PATCH).
-
-    :meth:`.request` is for making any kind of request, it will look up the
-    appropriate encoding format and use one of the above two methods to make
-    the request.
-
-    Initializer parameters:
-
-    :param headers:
-        Headers to include with all requests, unless other headers are given
-        explicitly.
-    """
-
-    _encode_url_methods = set(['DELETE', 'GET', 'HEAD', 'OPTIONS'])
-
-    def __init__(self, headers=None):
-        self.headers = headers or {}
-
-    def urlopen(self, method, url, body=None, headers=None,
-                encode_multipart=True, multipart_boundary=None,
-                **kw):  # Abstract
-        raise NotImplemented("Classes extending RequestMethods must implement "
-                             "their own ``urlopen`` method.")
-
-    def request(self, method, url, fields=None, headers=None, **urlopen_kw):
-        """
-        Make a request using :meth:`urlopen` with the appropriate encoding of
-        ``fields`` based on the ``method`` used.
-
-        This is a convenience method that requires the least amount of manual
-        effort. It can be used in most situations, while still having the
-        option to drop down to more specific methods when necessary, such as
-        :meth:`request_encode_url`, :meth:`request_encode_body`,
-        or even the lowest level :meth:`urlopen`.
-        """
-        method = method.upper()
-
-        if method in self._encode_url_methods:
-            return self.request_encode_url(method, url, fields=fields,
-                                           headers=headers,
-                                           **urlopen_kw)
-        else:
-            return self.request_encode_body(method, url, fields=fields,
-                                            headers=headers,
-                                            **urlopen_kw)
-
-    def request_encode_url(self, method, url, fields=None, headers=None,
-                           **urlopen_kw):
-        """
-        Make a request using :meth:`urlopen` with the ``fields`` encoded in
-        the url. This is useful for request methods like GET, HEAD, DELETE, etc.
-        """
-        if headers is None:
-            headers = self.headers
-
-        extra_kw = {'headers': headers}
-        extra_kw.update(urlopen_kw)
-
-        if fields:
-            url += '?' + urlencode(fields)
-
-        return self.urlopen(method, url, **extra_kw)
-
-    def request_encode_body(self, method, url, fields=None, headers=None,
-                            encode_multipart=True, multipart_boundary=None,
-                            **urlopen_kw):
-        """
-        Make a request using :meth:`urlopen` with the ``fields`` encoded in
-        the body. This is useful for request methods like POST, PUT, PATCH, etc.
-
-        When ``encode_multipart=True`` (default), then
-        :meth:`urllib3.filepost.encode_multipart_formdata` is used to encode
-        the payload with the appropriate content type. Otherwise
-        :meth:`urllib.urlencode` is used with the
-        'application/x-www-form-urlencoded' content type.
-
-        Multipart encoding must be used when posting files, and it's reasonably
-        safe to use it in other times too. However, it may break request
-        signing, such as with OAuth.
-
-        Supports an optional ``fields`` parameter of key/value strings AND
-        key/filetuple. A filetuple is a (filename, data, MIME type) tuple where
-        the MIME type is optional. For example::
-
-            fields = {
-                'foo': 'bar',
-                'fakefile': ('foofile.txt', 'contents of foofile'),
-                'realfile': ('barfile.txt', open('realfile').read()),
-                'typedfile': ('bazfile.bin', open('bazfile').read(),
-                              'image/jpeg'),
-                'nonamefile': 'contents of nonamefile field',
-            }
-
-        When uploading a file, providing a filename (the first parameter of the
-        tuple) is optional but recommended to best mimick behavior of browsers.
-
-        Note that if ``headers`` are supplied, the 'Content-Type' header will
-        be overwritten because it depends on the dynamic random boundary string
-        which is used to compose the body of the request. The random boundary
-        string can be explicitly set with the ``multipart_boundary`` parameter.
-        """
-        if headers is None:
-            headers = self.headers
-
-        extra_kw = {'headers': {}}
-
-        if fields:
-            if 'body' in urlopen_kw:
-                raise TypeError(
-                    "request got values for both 'fields' and 'body', can only specify one.")
-
-            if encode_multipart:
-                body, content_type = encode_multipart_formdata(fields, boundary=multipart_boundary)
-            else:
-                body, content_type = urlencode(fields), 'application/x-www-form-urlencoded'
-
-            extra_kw['body'] = body
-            extra_kw['headers'] = {'Content-Type': content_type}
-
-        extra_kw['headers'].update(headers)
-        extra_kw.update(urlopen_kw)
-
-        return self.urlopen(method, url, **extra_kw)
diff --git a/collectors/python.d.plugin/python_modules/urllib3/response.py b/collectors/python.d.plugin/python_modules/urllib3/response.py
deleted file mode 100644
index cf14a3076..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/response.py
+++ /dev/null
@@ -1,623 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-from contextlib import contextmanager
-import zlib
-import io
-import logging
-from socket import timeout as SocketTimeout
-from socket import error as SocketError
-
-from ._collections import HTTPHeaderDict
-from .exceptions import (
-    BodyNotHttplibCompatible, ProtocolError, DecodeError, ReadTimeoutError,
-    ResponseNotChunked, IncompleteRead, InvalidHeader
-)
-from .packages.six import string_types as basestring, binary_type, PY3
-from .packages.six.moves import http_client as httplib
-from .connection import HTTPException, BaseSSLError
-from .util.response import is_fp_closed, is_response_to_head
-
-log = logging.getLogger(__name__)
-
-
-class DeflateDecoder(object):
-
-    def __init__(self):
-        self._first_try = True
-        self._data = binary_type()
-        self._obj = zlib.decompressobj()
-
-    def __getattr__(self, name):
-        return getattr(self._obj, name)
-
-    def decompress(self, data):
-        if not data:
-            return data
-
-        if not self._first_try:
-            return self._obj.decompress(data)
-
-        self._data += data
-        try:
-            decompressed = self._obj.decompress(data)
-            if decompressed:
-                self._first_try = False
-                self._data = None
-            return decompressed
-        except zlib.error:
-            self._first_try = False
-            self._obj = zlib.decompressobj(-zlib.MAX_WBITS)
-            try:
-                return self.decompress(self._data)
-            finally:
-                self._data = None
-
-
-class GzipDecoder(object):
-
-    def __init__(self):
-        self._obj = zlib.decompressobj(16 + zlib.MAX_WBITS)
-
-    def __getattr__(self, name):
-        return getattr(self._obj, name)
-
-    def decompress(self, data):
-        if not data:
-            return data
-        return self._obj.decompress(data)
-
-
-def _get_decoder(mode):
-    if mode == 'gzip':
-        return GzipDecoder()
-
-    return DeflateDecoder()
-
-
-class HTTPResponse(io.IOBase):
-    """
-    HTTP Response container.
-
-    Backwards-compatible to httplib's HTTPResponse but the response ``body`` is
-    loaded and decoded on-demand when the ``data`` property is accessed.  This
-    class is also compatible with the Python standard library's :mod:`io`
-    module, and can hence be treated as a readable object in the context of that
-    framework.
-
-    Extra parameters for behaviour not present in httplib.HTTPResponse:
-
-    :param preload_content:
-        If True, the response's body will be preloaded during construction.
-
-    :param decode_content:
-        If True, attempts to decode specific content-encoding's based on headers
-        (like 'gzip' and 'deflate') will be skipped and raw data will be used
-        instead.
-
-    :param original_response:
-        When this HTTPResponse wrapper is generated from an httplib.HTTPResponse
-        object, it's convenient to include the original for debug purposes. It's
-        otherwise unused.
-
-    :param retries:
-        The retries contains the last :class:`~urllib3.util.retry.Retry` that
-        was used during the request.
-
-    :param enforce_content_length:
-        Enforce content length checking. Body returned by server must match
-        value of Content-Length header, if present. Otherwise, raise error.
-    """
-
-    CONTENT_DECODERS = ['gzip', 'deflate']
-    REDIRECT_STATUSES = [301, 302, 303, 307, 308]
-
-    def __init__(self, body='', headers=None, status=0, version=0, reason=None,
-                 strict=0, preload_content=True, decode_content=True,
-                 original_response=None, pool=None, connection=None,
-                 retries=None, enforce_content_length=False, request_method=None):
-
-        if isinstance(headers, HTTPHeaderDict):
-            self.headers = headers
-        else:
-            self.headers = HTTPHeaderDict(headers)
-        self.status = status
-        self.version = version
-        self.reason = reason
-        self.strict = strict
-        self.decode_content = decode_content
-        self.retries = retries
-        self.enforce_content_length = enforce_content_length
-
-        self._decoder = None
-        self._body = None
-        self._fp = None
-        self._original_response = original_response
-        self._fp_bytes_read = 0
-
-        if body and isinstance(body, (basestring, binary_type)):
-            self._body = body
-
-        self._pool = pool
-        self._connection = connection
-
-        if hasattr(body, 'read'):
-            self._fp = body
-
-        # Are we using the chunked-style of transfer encoding?
-        self.chunked = False
-        self.chunk_left = None
-        tr_enc = self.headers.get('transfer-encoding', '').lower()
-        # Don't incur the penalty of creating a list and then discarding it
-        encodings = (enc.strip() for enc in tr_enc.split(","))
-        if "chunked" in encodings:
-            self.chunked = True
-
-        # Determine length of response
-        self.length_remaining = self._init_length(request_method)
-
-        # If requested, preload the body.
-        if preload_content and not self._body:
-            self._body = self.read(decode_content=decode_content)
-
-    def get_redirect_location(self):
-        """
-        Should we redirect and where to?
-
-        :returns: Truthy redirect location string if we got a redirect status
-            code and valid location. ``None`` if redirect status and no
-            location. ``False`` if not a redirect status code.
-        """
-        if self.status in self.REDIRECT_STATUSES:
-            return self.headers.get('location')
-
-        return False
-
-    def release_conn(self):
-        if not self._pool or not self._connection:
-            return
-
-        self._pool._put_conn(self._connection)
-        self._connection = None
-
-    @property
-    def data(self):
-        # For backwords-compat with earlier urllib3 0.4 and earlier.
-        if self._body:
-            return self._body
-
-        if self._fp:
-            return self.read(cache_content=True)
-
-    @property
-    def connection(self):
-        return self._connection
-
-    def tell(self):
-        """
-        Obtain the number of bytes pulled over the wire so far. May differ from
-        the amount of content returned by :meth:``HTTPResponse.read`` if bytes
-        are encoded on the wire (e.g, compressed).
-        """
-        return self._fp_bytes_read
-
-    def _init_length(self, request_method):
-        """
-        Set initial length value for Response content if available.
-        """
-        length = self.headers.get('content-length')
-
-        if length is not None and self.chunked:
-            # This Response will fail with an IncompleteRead if it can't be
-            # received as chunked. This method falls back to attempt reading
-            # the response before raising an exception.
-            log.warning("Received response with both Content-Length and "
-                        "Transfer-Encoding set. This is expressly forbidden "
-                        "by RFC 7230 sec 3.3.2. Ignoring Content-Length and "
-                        "attempting to process response as Transfer-Encoding: "
-                        "chunked.")
-            return None
-
-        elif length is not None:
-            try:
-                # RFC 7230 section 3.3.2 specifies multiple content lengths can
-                # be sent in a single Content-Length header
-                # (e.g. Content-Length: 42, 42). This line ensures the values
-                # are all valid ints and that as long as the `set` length is 1,
-                # all values are the same. Otherwise, the header is invalid.
-                lengths = set([int(val) for val in length.split(',')])
-                if len(lengths) > 1:
-                    raise InvalidHeader("Content-Length contained multiple "
-                                        "unmatching values (%s)" % length)
-                length = lengths.pop()
-            except ValueError:
-                length = None
-            else:
-                if length < 0:
-                    length = None
-
-        # Convert status to int for comparison
-        # In some cases, httplib returns a status of "_UNKNOWN"
-        try:
-            status = int(self.status)
-        except ValueError:
-            status = 0
-
-        # Check for responses that shouldn't include a body
-        if status in (204, 304) or 100 <= status < 200 or request_method == 'HEAD':
-            length = 0
-
-        return length
-
-    def _init_decoder(self):
-        """
-        Set-up the _decoder attribute if necessary.
-        """
-        # Note: content-encoding value should be case-insensitive, per RFC 7230
-        # Section 3.2
-        content_encoding = self.headers.get('content-encoding', '').lower()
-        if self._decoder is None and content_encoding in self.CONTENT_DECODERS:
-            self._decoder = _get_decoder(content_encoding)
-
-    def _decode(self, data, decode_content, flush_decoder):
-        """
-        Decode the data passed in and potentially flush the decoder.
-        """
-        try:
-            if decode_content and self._decoder:
-                data = self._decoder.decompress(data)
-        except (IOError, zlib.error) as e:
-            content_encoding = self.headers.get('content-encoding', '').lower()
-            raise DecodeError(
-                "Received response with content-encoding: %s, but "
-                "failed to decode it." % content_encoding, e)
-
-        if flush_decoder and decode_content:
-            data += self._flush_decoder()
-
-        return data
-
-    def _flush_decoder(self):
-        """
-        Flushes the decoder. Should only be called if the decoder is actually
-        being used.
-        """
-        if self._decoder:
-            buf = self._decoder.decompress(b'')
-            return buf + self._decoder.flush()
-
-        return b''
-
-    @contextmanager
-    def _error_catcher(self):
-        """
-        Catch low-level python exceptions, instead re-raising urllib3
-        variants, so that low-level exceptions are not leaked in the
-        high-level api.
-
-        On exit, release the connection back to the pool.
-        """
-        clean_exit = False
-
-        try:
-            try:
-                yield
-
-            except SocketTimeout:
-                # FIXME: Ideally we'd like to include the url in the ReadTimeoutError but
-                # there is yet no clean way to get at it from this context.
-                raise ReadTimeoutError(self._pool, None, 'Read timed out.')
-
-            except BaseSSLError as e:
-                # FIXME: Is there a better way to differentiate between SSLErrors?
-                if 'read operation timed out' not in str(e):  # Defensive:
-                    # This shouldn't happen but just in case we're missing an edge
-                    # case, let's avoid swallowing SSL errors.
-                    raise
-
-                raise ReadTimeoutError(self._pool, None, 'Read timed out.')
-
-            except (HTTPException, SocketError) as e:
-                # This includes IncompleteRead.
-                raise ProtocolError('Connection broken: %r' % e, e)
-
-            # If no exception is thrown, we should avoid cleaning up
-            # unnecessarily.
-            clean_exit = True
-        finally:
-            # If we didn't terminate cleanly, we need to throw away our
-            # connection.
-            if not clean_exit:
-                # The response may not be closed but we're not going to use it
-                # anymore so close it now to ensure that the connection is
-                # released back to the pool.
-                if self._original_response:
-                    self._original_response.close()
-
-                # Closing the response may not actually be sufficient to close
-                # everything, so if we have a hold of the connection close that
-                # too.
-                if self._connection:
-                    self._connection.close()
-
-            # If we hold the original response but it's closed now, we should
-            # return the connection back to the pool.
-            if self._original_response and self._original_response.isclosed():
-                self.release_conn()
-
-    def read(self, amt=None, decode_content=None, cache_content=False):
-        """
-        Similar to :meth:`httplib.HTTPResponse.read`, but with two additional
-        parameters: ``decode_content`` and ``cache_content``.
-
-        :param amt:
-            How much of the content to read. If specified, caching is skipped
-            because it doesn't make sense to cache partial content as the full
-            response.
-
-        :param decode_content:
-            If True, will attempt to decode the body based on the
-            'content-encoding' header.
-
-        :param cache_content:
-            If True, will save the returned data such that the same result is
-            returned despite of the state of the underlying file object. This
-            is useful if you want the ``.data`` property to continue working
-            after having ``.read()`` the file object. (Overridden if ``amt`` is
-            set.)
-        """
-        self._init_decoder()
-        if decode_content is None:
-            decode_content = self.decode_content
-
-        if self._fp is None:
-            return
-
-        flush_decoder = False
-        data = None
-
-        with self._error_catcher():
-            if amt is None:
-                # cStringIO doesn't like amt=None
-                data = self._fp.read()
-                flush_decoder = True
-            else:
-                cache_content = False
-                data = self._fp.read(amt)
-                if amt != 0 and not data:  # Platform-specific: Buggy versions of Python.
-                    # Close the connection when no data is returned
-                    #
-                    # This is redundant to what httplib/http.client _should_
-                    # already do.  However, versions of python released before
-                    # December 15, 2012 (http://bugs.python.org/issue16298) do
-                    # not properly close the connection in all cases. There is
-                    # no harm in redundantly calling close.
-                    self._fp.close()
-                    flush_decoder = True
-                    if self.enforce_content_length and self.length_remaining not in (0, None):
-                        # This is an edge case that httplib failed to cover due
-                        # to concerns of backward compatibility. We're
-                        # addressing it here to make sure IncompleteRead is
-                        # raised during streaming, so all calls with incorrect
-                        # Content-Length are caught.
-                        raise IncompleteRead(self._fp_bytes_read, self.length_remaining)
-
-        if data:
-            self._fp_bytes_read += len(data)
-            if self.length_remaining is not None:
-                self.length_remaining -= len(data)
-
-            data = self._decode(data, decode_content, flush_decoder)
-
-            if cache_content:
-                self._body = data
-
-        return data
-
-    def stream(self, amt=2**16, decode_content=None):
-        """
-        A generator wrapper for the read() method. A call will block until
-        ``amt`` bytes have been read from the connection or until the
-        connection is closed.
-
-        :param amt:
-            How much of the content to read. The generator will return up to
-            much data per iteration, but may return less. This is particularly
-            likely when using compressed data. However, the empty string will
-            never be returned.
-
-        :param decode_content:
-            If True, will attempt to decode the body based on the
-            'content-encoding' header.
-        """
-        if self.chunked and self.supports_chunked_reads():
-            for line in self.read_chunked(amt, decode_content=decode_content):
-                yield line
-        else:
-            while not is_fp_closed(self._fp):
-                data = self.read(amt=amt, decode_content=decode_content)
-
-                if data:
-                    yield data
-
-    @classmethod
-    def from_httplib(ResponseCls, r, **response_kw):
-        """
-        Given an :class:`httplib.HTTPResponse` instance ``r``, return a
-        corresponding :class:`urllib3.response.HTTPResponse` object.
-
-        Remaining parameters are passed to the HTTPResponse constructor, along
-        with ``original_response=r``.
-        """
-        headers = r.msg
-
-        if not isinstance(headers, HTTPHeaderDict):
-            if PY3:  # Python 3
-                headers = HTTPHeaderDict(headers.items())
-            else:  # Python 2
-                headers = HTTPHeaderDict.from_httplib(headers)
-
-        # HTTPResponse objects in Python 3 don't have a .strict attribute
-        strict = getattr(r, 'strict', 0)
-        resp = ResponseCls(body=r,
-                           headers=headers,
-                           status=r.status,
-                           version=r.version,
-                           reason=r.reason,
-                           strict=strict,
-                           original_response=r,
-                           **response_kw)
-        return resp
-
-    # Backwards-compatibility methods for httplib.HTTPResponse
-    def getheaders(self):
-        return self.headers
-
-    def getheader(self, name, default=None):
-        return self.headers.get(name, default)
-
-    # Overrides from io.IOBase
-    def close(self):
-        if not self.closed:
-            self._fp.close()
-
-        if self._connection:
-            self._connection.close()
-
-    @property
-    def closed(self):
-        if self._fp is None:
-            return True
-        elif hasattr(self._fp, 'isclosed'):
-            return self._fp.isclosed()
-        elif hasattr(self._fp, 'closed'):
-            return self._fp.closed
-        else:
-            return True
-
-    def fileno(self):
-        if self._fp is None:
-            raise IOError("HTTPResponse has no file to get a fileno from")
-        elif hasattr(self._fp, "fileno"):
-            return self._fp.fileno()
-        else:
-            raise IOError("The file-like object this HTTPResponse is wrapped "
-                          "around has no file descriptor")
-
-    def flush(self):
-        if self._fp is not None and hasattr(self._fp, 'flush'):
-            return self._fp.flush()
-
-    def readable(self):
-        # This method is required for `io` module compatibility.
-        return True
-
-    def readinto(self, b):
-        # This method is required for `io` module compatibility.
-        temp = self.read(len(b))
-        if len(temp) == 0:
-            return 0
-        else:
-            b[:len(temp)] = temp
-            return len(temp)
-
-    def supports_chunked_reads(self):
-        """
-        Checks if the underlying file-like object looks like a
-        httplib.HTTPResponse object. We do this by testing for the fp
-        attribute. If it is present we assume it returns raw chunks as
-        processed by read_chunked().
-        """
-        return hasattr(self._fp, 'fp')
-
-    def _update_chunk_length(self):
-        # First, we'll figure out length of a chunk and then
-        # we'll try to read it from socket.
-        if self.chunk_left is not None:
-            return
-        line = self._fp.fp.readline()
-        line = line.split(b';', 1)[0]
-        try:
-            self.chunk_left = int(line, 16)
-        except ValueError:
-            # Invalid chunked protocol response, abort.
-            self.close()
-            raise httplib.IncompleteRead(line)
-
-    def _handle_chunk(self, amt):
-        returned_chunk = None
-        if amt is None:
-            chunk = self._fp._safe_read(self.chunk_left)
-            returned_chunk = chunk
-            self._fp._safe_read(2)  # Toss the CRLF at the end of the chunk.
-            self.chunk_left = None
-        elif amt < self.chunk_left:
-            value = self._fp._safe_read(amt)
-            self.chunk_left = self.chunk_left - amt
-            returned_chunk = value
-        elif amt == self.chunk_left:
-            value = self._fp._safe_read(amt)
-            self._fp._safe_read(2)  # Toss the CRLF at the end of the chunk.
-            self.chunk_left = None
-            returned_chunk = value
-        else:  # amt > self.chunk_left
-            returned_chunk = self._fp._safe_read(self.chunk_left)
-            self._fp._safe_read(2)  # Toss the CRLF at the end of the chunk.
-            self.chunk_left = None
-        return returned_chunk
-
-    def read_chunked(self, amt=None, decode_content=None):
-        """
-        Similar to :meth:`HTTPResponse.read`, but with an additional
-        parameter: ``decode_content``.
-
-        :param decode_content:
-            If True, will attempt to decode the body based on the
-            'content-encoding' header.
-        """
-        self._init_decoder()
-        # FIXME: Rewrite this method and make it a class with a better structured logic.
-        if not self.chunked:
-            raise ResponseNotChunked(
-                "Response is not chunked. "
-                "Header 'transfer-encoding: chunked' is missing.")
-        if not self.supports_chunked_reads():
-            raise BodyNotHttplibCompatible(
-                "Body should be httplib.HTTPResponse like. "
-                "It should have have an fp attribute which returns raw chunks.")
-
-        # Don't bother reading the body of a HEAD request.
-        if self._original_response and is_response_to_head(self._original_response):
-            self._original_response.close()
-            return
-
-        with self._error_catcher():
-            while True:
-                self._update_chunk_length()
-                if self.chunk_left == 0:
-                    break
-                chunk = self._handle_chunk(amt)
-                decoded = self._decode(chunk, decode_content=decode_content,
-                                       flush_decoder=False)
-                if decoded:
-                    yield decoded
-
-            if decode_content:
-                # On CPython and PyPy, we should never need to flush the
-                # decoder. However, on Jython we *might* need to, so
-                # lets defensively do it anyway.
-                decoded = self._flush_decoder()
-                if decoded:  # Platform-specific: Jython.
-                    yield decoded
-
-            # Chunk content ends with \r\n: discard it.
-            while True:
-                line = self._fp.fp.readline()
-                if not line:
-                    # Some sites may not end with '\r\n'.
-                    break
-                if line == b'\r\n':
-                    break
-
-            # We read everything; close the "file".
-            if self._original_response:
-                self._original_response.close()
diff --git a/collectors/python.d.plugin/python_modules/urllib3/util/__init__.py b/collectors/python.d.plugin/python_modules/urllib3/util/__init__.py
deleted file mode 100644
index bba628d98..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/util/__init__.py
+++ /dev/null
@@ -1,55 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-# For backwards compatibility, provide imports that used to be here.
-from .connection import is_connection_dropped
-from .request import make_headers
-from .response import is_fp_closed
-from .ssl_ import (
-    SSLContext,
-    HAS_SNI,
-    IS_PYOPENSSL,
-    IS_SECURETRANSPORT,
-    assert_fingerprint,
-    resolve_cert_reqs,
-    resolve_ssl_version,
-    ssl_wrap_socket,
-)
-from .timeout import (
-    current_time,
-    Timeout,
-)
-
-from .retry import Retry
-from .url import (
-    get_host,
-    parse_url,
-    split_first,
-    Url,
-)
-from .wait import (
-    wait_for_read,
-    wait_for_write
-)
-
-__all__ = (
-    'HAS_SNI',
-    'IS_PYOPENSSL',
-    'IS_SECURETRANSPORT',
-    'SSLContext',
-    'Retry',
-    'Timeout',
-    'Url',
-    'assert_fingerprint',
-    'current_time',
-    'is_connection_dropped',
-    'is_fp_closed',
-    'get_host',
-    'parse_url',
-    'make_headers',
-    'resolve_cert_reqs',
-    'resolve_ssl_version',
-    'split_first',
-    'ssl_wrap_socket',
-    'wait_for_read',
-    'wait_for_write'
-)
diff --git a/collectors/python.d.plugin/python_modules/urllib3/util/connection.py b/collectors/python.d.plugin/python_modules/urllib3/util/connection.py
deleted file mode 100644
index 3bd69e8fa..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/util/connection.py
+++ /dev/null
@@ -1,131 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-import socket
-from .wait import wait_for_read
-from .selectors import HAS_SELECT, SelectorError
-
-
-def is_connection_dropped(conn):  # Platform-specific
-    """
-    Returns True if the connection is dropped and should be closed.
-
-    :param conn:
-        :class:`httplib.HTTPConnection` object.
-
-    Note: For platforms like AppEngine, this will always return ``False`` to
-    let the platform handle connection recycling transparently for us.
-    """
-    sock = getattr(conn, 'sock', False)
-    if sock is False:  # Platform-specific: AppEngine
-        return False
-    if sock is None:  # Connection already closed (such as by httplib).
-        return True
-
-    if not HAS_SELECT:
-        return False
-
-    try:
-        return bool(wait_for_read(sock, timeout=0.0))
-    except SelectorError:
-        return True
-
-
-# This function is copied from socket.py in the Python 2.7 standard
-# library test suite. Added to its signature is only `socket_options`.
-# One additional modification is that we avoid binding to IPv6 servers
-# discovered in DNS if the system doesn't have IPv6 functionality.
-def create_connection(address, timeout=socket._GLOBAL_DEFAULT_TIMEOUT,
-                      source_address=None, socket_options=None):
-    """Connect to *address* and return the socket object.
-
-    Convenience function.  Connect to *address* (a 2-tuple ``(host,
-    port)``) and return the socket object.  Passing the optional
-    *timeout* parameter will set the timeout on the socket instance
-    before attempting to connect.  If no *timeout* is supplied, the
-    global default timeout setting returned by :func:`getdefaulttimeout`
-    is used.  If *source_address* is set it must be a tuple of (host, port)
-    for the socket to bind as a source address before making the connection.
-    An host of '' or port 0 tells the OS to use the default.
-    """
-
-    host, port = address
-    if host.startswith('['):
-        host = host.strip('[]')
-    err = None
-
-    # Using the value from allowed_gai_family() in the context of getaddrinfo lets
-    # us select whether to work with IPv4 DNS records, IPv6 records, or both.
-    # The original create_connection function always returns all records.
-    family = allowed_gai_family()
-
-    for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
-        af, socktype, proto, canonname, sa = res
-        sock = None
-        try:
-            sock = socket.socket(af, socktype, proto)
-
-            # If provided, set socket level options before connecting.
-            _set_socket_options(sock, socket_options)
-
-            if timeout is not socket._GLOBAL_DEFAULT_TIMEOUT:
-                sock.settimeout(timeout)
-            if source_address:
-                sock.bind(source_address)
-            sock.connect(sa)
-            return sock
-
-        except socket.error as e:
-            err = e
-            if sock is not None:
-                sock.close()
-                sock = None
-
-    if err is not None:
-        raise err
-
-    raise socket.error("getaddrinfo returns an empty list")
-
-
-def _set_socket_options(sock, options):
-    if options is None:
-        return
-
-    for opt in options:
-        sock.setsockopt(*opt)
-
-
-def allowed_gai_family():
-    """This function is designed to work in the context of
-    getaddrinfo, where family=socket.AF_UNSPEC is the default and
-    will perform a DNS search for both IPv6 and IPv4 records."""
-
-    family = socket.AF_INET
-    if HAS_IPV6:
-        family = socket.AF_UNSPEC
-    return family
-
-
-def _has_ipv6(host):
-    """ Returns True if the system can bind an IPv6 address. """
-    sock = None
-    has_ipv6 = False
-
-    if socket.has_ipv6:
-        # has_ipv6 returns true if cPython was compiled with IPv6 support.
-        # It does not tell us if the system has IPv6 support enabled. To
-        # determine that we must bind to an IPv6 address.
-        # https://github.com/shazow/urllib3/pull/611
-        # https://bugs.python.org/issue658327
-        try:
-            sock = socket.socket(socket.AF_INET6)
-            sock.bind((host, 0))
-            has_ipv6 = True
-        except Exception:
-            pass
-
-    if sock:
-        sock.close()
-    return has_ipv6
-
-
-HAS_IPV6 = _has_ipv6('::1')
diff --git a/collectors/python.d.plugin/python_modules/urllib3/util/request.py b/collectors/python.d.plugin/python_modules/urllib3/util/request.py
deleted file mode 100644
index 18f27b032..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/util/request.py
+++ /dev/null
@@ -1,119 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-from base64 import b64encode
-
-from ..packages.six import b, integer_types
-from ..exceptions import UnrewindableBodyError
-
-ACCEPT_ENCODING = 'gzip,deflate'
-_FAILEDTELL = object()
-
-
-def make_headers(keep_alive=None, accept_encoding=None, user_agent=None,
-                 basic_auth=None, proxy_basic_auth=None, disable_cache=None):
-    """
-    Shortcuts for generating request headers.
-
-    :param keep_alive:
-        If ``True``, adds 'connection: keep-alive' header.
-
-    :param accept_encoding:
-        Can be a boolean, list, or string.
-        ``True`` translates to 'gzip,deflate'.
-        List will get joined by comma.
-        String will be used as provided.
-
-    :param user_agent:
-        String representing the user-agent you want, such as
-        "python-urllib3/0.6"
-
-    :param basic_auth:
-        Colon-separated username:password string for 'authorization: basic ...'
-        auth header.
-
-    :param proxy_basic_auth:
-        Colon-separated username:password string for 'proxy-authorization: basic ...'
-        auth header.
-
-    :param disable_cache:
-        If ``True``, adds 'cache-control: no-cache' header.
-
-    Example::
-
-        >>> make_headers(keep_alive=True, user_agent="Batman/1.0")
-        {'connection': 'keep-alive', 'user-agent': 'Batman/1.0'}
-        >>> make_headers(accept_encoding=True)
-        {'accept-encoding': 'gzip,deflate'}
-    """
-    headers = {}
-    if accept_encoding:
-        if isinstance(accept_encoding, str):
-            pass
-        elif isinstance(accept_encoding, list):
-            accept_encoding = ','.join(accept_encoding)
-        else:
-            accept_encoding = ACCEPT_ENCODING
-        headers['accept-encoding'] = accept_encoding
-
-    if user_agent:
-        headers['user-agent'] = user_agent
-
-    if keep_alive:
-        headers['connection'] = 'keep-alive'
-
-    if basic_auth:
-        headers['authorization'] = 'Basic ' + \
-            b64encode(b(basic_auth)).decode('utf-8')
-
-    if proxy_basic_auth:
-        headers['proxy-authorization'] = 'Basic ' + \
-            b64encode(b(proxy_basic_auth)).decode('utf-8')
-
-    if disable_cache:
-        headers['cache-control'] = 'no-cache'
-
-    return headers
-
-
-def set_file_position(body, pos):
-    """
-    If a position is provided, move file to that point.
-    Otherwise, we'll attempt to record a position for future use.
-    """
-    if pos is not None:
-        rewind_body(body, pos)
-    elif getattr(body, 'tell', None) is not None:
-        try:
-            pos = body.tell()
-        except (IOError, OSError):
-            # This differentiates from None, allowing us to catch
-            # a failed `tell()` later when trying to rewind the body.
-            pos = _FAILEDTELL
-
-    return pos
-
-
-def rewind_body(body, body_pos):
-    """
-    Attempt to rewind body to a certain position.
-    Primarily used for request redirects and retries.
-
-    :param body:
-        File-like object that supports seek.
-
-    :param int pos:
-        Position to seek to in file.
-    """
-    body_seek = getattr(body, 'seek', None)
-    if body_seek is not None and isinstance(body_pos, integer_types):
-        try:
-            body_seek(body_pos)
-        except (IOError, OSError):
-            raise UnrewindableBodyError("An error occurred when rewinding request "
-                                        "body for redirect/retry.")
-    elif body_pos is _FAILEDTELL:
-        raise UnrewindableBodyError("Unable to record file position for rewinding "
-                                    "request body during a redirect/retry.")
-    else:
-        raise ValueError("body_pos must be of type integer, "
-                         "instead it was %s." % type(body_pos))
diff --git a/collectors/python.d.plugin/python_modules/urllib3/util/response.py b/collectors/python.d.plugin/python_modules/urllib3/util/response.py
deleted file mode 100644
index e4cda93d4..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/util/response.py
+++ /dev/null
@@ -1,82 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-from ..packages.six.moves import http_client as httplib
-
-from ..exceptions import HeaderParsingError
-
-
-def is_fp_closed(obj):
-    """
-    Checks whether a given file-like object is closed.
-
-    :param obj:
-        The file-like object to check.
-    """
-
-    try:
-        # Check `isclosed()` first, in case Python3 doesn't set `closed`.
-        # GH Issue #928
-        return obj.isclosed()
-    except AttributeError:
-        pass
-
-    try:
-        # Check via the official file-like-object way.
-        return obj.closed
-    except AttributeError:
-        pass
-
-    try:
-        # Check if the object is a container for another file-like object that
-        # gets released on exhaustion (e.g. HTTPResponse).
-        return obj.fp is None
-    except AttributeError:
-        pass
-
-    raise ValueError("Unable to determine whether fp is closed.")
-
-
-def assert_header_parsing(headers):
-    """
-    Asserts whether all headers have been successfully parsed.
-    Extracts encountered errors from the result of parsing headers.
-
-    Only works on Python 3.
-
-    :param headers: Headers to verify.
-    :type headers: `httplib.HTTPMessage`.
-
-    :raises urllib3.exceptions.HeaderParsingError:
-        If parsing errors are found.
-    """
-
-    # This will fail silently if we pass in the wrong kind of parameter.
-    # To make debugging easier add an explicit check.
-    if not isinstance(headers, httplib.HTTPMessage):
-        raise TypeError('expected httplib.Message, got {0}.'.format(
-            type(headers)))
-
-    defects = getattr(headers, 'defects', None)
-    get_payload = getattr(headers, 'get_payload', None)
-
-    unparsed_data = None
-    if get_payload:  # Platform-specific: Python 3.
-        unparsed_data = get_payload()
-
-    if defects or unparsed_data:
-        raise HeaderParsingError(defects=defects, unparsed_data=unparsed_data)
-
-
-def is_response_to_head(response):
-    """
-    Checks whether the request of a response has been a HEAD-request.
-    Handles the quirks of AppEngine.
-
-    :param conn:
-    :type conn: :class:`httplib.HTTPResponse`
-    """
-    # FIXME: Can we do this somehow without accessing private httplib _method?
-    method = response._method
-    if isinstance(method, int):  # Platform-specific: Appengine
-        return method == 3
-    return method.upper() == 'HEAD'
diff --git a/collectors/python.d.plugin/python_modules/urllib3/util/retry.py b/collectors/python.d.plugin/python_modules/urllib3/util/retry.py
deleted file mode 100644
index 61e63afec..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/util/retry.py
+++ /dev/null
@@ -1,402 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-import time
-import logging
-from collections import namedtuple
-from itertools import takewhile
-import email
-import re
-
-from ..exceptions import (
-    ConnectTimeoutError,
-    MaxRetryError,
-    ProtocolError,
-    ReadTimeoutError,
-    ResponseError,
-    InvalidHeader,
-)
-from ..packages import six
-
-
-log = logging.getLogger(__name__)
-
-# Data structure for representing the metadata of requests that result in a retry.
-RequestHistory = namedtuple('RequestHistory', ["method", "url", "error",
-                                               "status", "redirect_location"])
-
-
-class Retry(object):
-    """ Retry configuration.
-
-    Each retry attempt will create a new Retry object with updated values, so
-    they can be safely reused.
-
-    Retries can be defined as a default for a pool::
-
-        retries = Retry(connect=5, read=2, redirect=5)
-        http = PoolManager(retries=retries)
-        response = http.request('GET', 'http://example.com/')
-
-    Or per-request (which overrides the default for the pool)::
-
-        response = http.request('GET', 'http://example.com/', retries=Retry(10))
-
-    Retries can be disabled by passing ``False``::
-
-        response = http.request('GET', 'http://example.com/', retries=False)
-
-    Errors will be wrapped in :class:`~urllib3.exceptions.MaxRetryError` unless
-    retries are disabled, in which case the causing exception will be raised.
-
-    :param int total:
-        Total number of retries to allow. Takes precedence over other counts.
-
-        Set to ``None`` to remove this constraint and fall back on other
-        counts. It's a good idea to set this to some sensibly-high value to
-        account for unexpected edge cases and avoid infinite retry loops.
-
-        Set to ``0`` to fail on the first retry.
-
-        Set to ``False`` to disable and imply ``raise_on_redirect=False``.
-
-    :param int connect:
-        How many connection-related errors to retry on.
-
-        These are errors raised before the request is sent to the remote server,
-        which we assume has not triggered the server to process the request.
-
-        Set to ``0`` to fail on the first retry of this type.
-
-    :param int read:
-        How many times to retry on read errors.
-
-        These errors are raised after the request was sent to the server, so the
-        request may have side-effects.
-
-        Set to ``0`` to fail on the first retry of this type.
-
-    :param int redirect:
-        How many redirects to perform. Limit this to avoid infinite redirect
-        loops.
-
-        A redirect is a HTTP response with a status code 301, 302, 303, 307 or
-        308.
-
-        Set to ``0`` to fail on the first retry of this type.
-
-        Set to ``False`` to disable and imply ``raise_on_redirect=False``.
-
-    :param int status:
-        How many times to retry on bad status codes.
-
-        These are retries made on responses, where status code matches
-        ``status_forcelist``.
-
-        Set to ``0`` to fail on the first retry of this type.
-
-    :param iterable method_whitelist:
-        Set of uppercased HTTP method verbs that we should retry on.
-
-        By default, we only retry on methods which are considered to be
-        idempotent (multiple requests with the same parameters end with the
-        same state). See :attr:`Retry.DEFAULT_METHOD_WHITELIST`.
-
-        Set to a ``False`` value to retry on any verb.
-
-    :param iterable status_forcelist:
-        A set of integer HTTP status codes that we should force a retry on.
-        A retry is initiated if the request method is in ``method_whitelist``
-        and the response status code is in ``status_forcelist``.
-
-        By default, this is disabled with ``None``.
-
-    :param float backoff_factor:
-        A backoff factor to apply between attempts after the second try
-        (most errors are resolved immediately by a second try without a
-        delay). urllib3 will sleep for::
-
-            {backoff factor} * (2 ^ ({number of total retries} - 1))
-
-        seconds. If the backoff_factor is 0.1, then :func:`.sleep` will sleep
-        for [0.0s, 0.2s, 0.4s, ...] between retries. It will never be longer
-        than :attr:`Retry.BACKOFF_MAX`.
-
-        By default, backoff is disabled (set to 0).
-
-    :param bool raise_on_redirect: Whether, if the number of redirects is
-        exhausted, to raise a MaxRetryError, or to return a response with a
-        response code in the 3xx range.
-
-    :param bool raise_on_status: Similar meaning to ``raise_on_redirect``:
-        whether we should raise an exception, or return a response,
-        if status falls in ``status_forcelist`` range and retries have
-        been exhausted.
-
-    :param tuple history: The history of the request encountered during
-        each call to :meth:`~Retry.increment`. The list is in the order
-        the requests occurred. Each list item is of class :class:`RequestHistory`.
-
-    :param bool respect_retry_after_header:
-        Whether to respect Retry-After header on status codes defined as
-        :attr:`Retry.RETRY_AFTER_STATUS_CODES` or not.
-
-    """
-
-    DEFAULT_METHOD_WHITELIST = frozenset([
-        'HEAD', 'GET', 'PUT', 'DELETE', 'OPTIONS', 'TRACE'])
-
-    RETRY_AFTER_STATUS_CODES = frozenset([413, 429, 503])
-
-    #: Maximum backoff time.
-    BACKOFF_MAX = 120
-
-    def __init__(self, total=10, connect=None, read=None, redirect=None, status=None,
-                 method_whitelist=DEFAULT_METHOD_WHITELIST, status_forcelist=None,
-                 backoff_factor=0, raise_on_redirect=True, raise_on_status=True,
-                 history=None, respect_retry_after_header=True):
-
-        self.total = total
-        self.connect = connect
-        self.read = read
-        self.status = status
-
-        if redirect is False or total is False:
-            redirect = 0
-            raise_on_redirect = False
-
-        self.redirect = redirect
-        self.status_forcelist = status_forcelist or set()
-        self.method_whitelist = method_whitelist
-        self.backoff_factor = backoff_factor
-        self.raise_on_redirect = raise_on_redirect
-        self.raise_on_status = raise_on_status
-        self.history = history or tuple()
-        self.respect_retry_after_header = respect_retry_after_header
-
-    def new(self, **kw):
-        params = dict(
-            total=self.total,
-            connect=self.connect, read=self.read, redirect=self.redirect, status=self.status,
-            method_whitelist=self.method_whitelist,
-            status_forcelist=self.status_forcelist,
-            backoff_factor=self.backoff_factor,
-            raise_on_redirect=self.raise_on_redirect,
-            raise_on_status=self.raise_on_status,
-            history=self.history,
-        )
-        params.update(kw)
-        return type(self)(**params)
-
-    @classmethod
-    def from_int(cls, retries, redirect=True, default=None):
-        """ Backwards-compatibility for the old retries format."""
-        if retries is None:
-            retries = default if default is not None else cls.DEFAULT
-
-        if isinstance(retries, Retry):
-            return retries
-
-        redirect = bool(redirect) and None
-        new_retries = cls(retries, redirect=redirect)
-        log.debug("Converted retries value: %r -> %r", retries, new_retries)
-        return new_retries
-
-    def get_backoff_time(self):
-        """ Formula for computing the current backoff
-
-        :rtype: float
-        """
-        # We want to consider only the last consecutive errors sequence (Ignore redirects).
-        consecutive_errors_len = len(list(takewhile(lambda x: x.redirect_location is None,
-                                                    reversed(self.history))))
-        if consecutive_errors_len <= 1:
-            return 0
-
-        backoff_value = self.backoff_factor * (2 ** (consecutive_errors_len - 1))
-        return min(self.BACKOFF_MAX, backoff_value)
-
-    def parse_retry_after(self, retry_after):
-        # Whitespace: https://tools.ietf.org/html/rfc7230#section-3.2.4
-        if re.match(r"^\s*[0-9]+\s*$", retry_after):
-            seconds = int(retry_after)
-        else:
-            retry_date_tuple = email.utils.parsedate(retry_after)
-            if retry_date_tuple is None:
-                raise InvalidHeader("Invalid Retry-After header: %s" % retry_after)
-            retry_date = time.mktime(retry_date_tuple)
-            seconds = retry_date - time.time()
-
-        if seconds < 0:
-            seconds = 0
-
-        return seconds
-
-    def get_retry_after(self, response):
-        """ Get the value of Retry-After in seconds. """
-
-        retry_after = response.getheader("Retry-After")
-
-        if retry_after is None:
-            return None
-
-        return self.parse_retry_after(retry_after)
-
-    def sleep_for_retry(self, response=None):
-        retry_after = self.get_retry_after(response)
-        if retry_after:
-            time.sleep(retry_after)
-            return True
-
-        return False
-
-    def _sleep_backoff(self):
-        backoff = self.get_backoff_time()
-        if backoff <= 0:
-            return
-        time.sleep(backoff)
-
-    def sleep(self, response=None):
-        """ Sleep between retry attempts.
-
-        This method will respect a server's ``Retry-After`` response header
-        and sleep the duration of the time requested. If that is not present, it
-        will use an exponential backoff. By default, the backoff factor is 0 and
-        this method will return immediately.
-        """
-
-        if response:
-            slept = self.sleep_for_retry(response)
-            if slept:
-                return
-
-        self._sleep_backoff()
-
-    def _is_connection_error(self, err):
-        """ Errors when we're fairly sure that the server did not receive the
-        request, so it should be safe to retry.
-        """
-        return isinstance(err, ConnectTimeoutError)
-
-    def _is_read_error(self, err):
-        """ Errors that occur after the request has been started, so we should
-        assume that the server began processing it.
-        """
-        return isinstance(err, (ReadTimeoutError, ProtocolError))
-
-    def _is_method_retryable(self, method):
-        """ Checks if a given HTTP method should be retried upon, depending if
-        it is included on the method whitelist.
-        """
-        if self.method_whitelist and method.upper() not in self.method_whitelist:
-            return False
-
-        return True
-
-    def is_retry(self, method, status_code, has_retry_after=False):
-        """ Is this method/status code retryable? (Based on whitelists and control
-        variables such as the number of total retries to allow, whether to
-        respect the Retry-After header, whether this header is present, and
-        whether the returned status code is on the list of status codes to
-        be retried upon on the presence of the aforementioned header)
-        """
-        if not self._is_method_retryable(method):
-            return False
-
-        if self.status_forcelist and status_code in self.status_forcelist:
-            return True
-
-        return (self.total and self.respect_retry_after_header and
-                has_retry_after and (status_code in self.RETRY_AFTER_STATUS_CODES))
-
-    def is_exhausted(self):
-        """ Are we out of retries? """
-        retry_counts = (self.total, self.connect, self.read, self.redirect, self.status)
-        retry_counts = list(filter(None, retry_counts))
-        if not retry_counts:
-            return False
-
-        return min(retry_counts) < 0
-
-    def increment(self, method=None, url=None, response=None, error=None,
-                  _pool=None, _stacktrace=None):
-        """ Return a new Retry object with incremented retry counters.
-
-        :param response: A response object, or None, if the server did not
-            return a response.
-        :type response: :class:`~urllib3.response.HTTPResponse`
-        :param Exception error: An error encountered during the request, or
-            None if the response was received successfully.
-
-        :return: A new ``Retry`` object.
-        """
-        if self.total is False and error:
-            # Disabled, indicate to re-raise the error.
-            raise six.reraise(type(error), error, _stacktrace)
-
-        total = self.total
-        if total is not None:
-            total -= 1
-
-        connect = self.connect
-        read = self.read
-        redirect = self.redirect
-        status_count = self.status
-        cause = 'unknown'
-        status = None
-        redirect_location = None
-
-        if error and self._is_connection_error(error):
-            # Connect retry?
-            if connect is False:
-                raise six.reraise(type(error), error, _stacktrace)
-            elif connect is not None:
-                connect -= 1
-
-        elif error and self._is_read_error(error):
-            # Read retry?
-            if read is False or not self._is_method_retryable(method):
-                raise six.reraise(type(error), error, _stacktrace)
-            elif read is not None:
-                read -= 1
-
-        elif response and response.get_redirect_location():
-            # Redirect retry?
-            if redirect is not None:
-                redirect -= 1
-            cause = 'too many redirects'
-            redirect_location = response.get_redirect_location()
-            status = response.status
-
-        else:
-            # Incrementing because of a server error like a 500 in
-            # status_forcelist and a the given method is in the whitelist
-            cause = ResponseError.GENERIC_ERROR
-            if response and response.status:
-                if status_count is not None:
-                    status_count -= 1
-                cause = ResponseError.SPECIFIC_ERROR.format(
-                    status_code=response.status)
-                status = response.status
-
-        history = self.history + (RequestHistory(method, url, error, status, redirect_location),)
-
-        new_retry = self.new(
-            total=total,
-            connect=connect, read=read, redirect=redirect, status=status_count,
-            history=history)
-
-        if new_retry.is_exhausted():
-            raise MaxRetryError(_pool, url, error or ResponseError(cause))
-
-        log.debug("Incremented Retry for (url='%s'): %r", url, new_retry)
-
-        return new_retry
-
-    def __repr__(self):
-        return ('{cls.__name__}(total={self.total}, connect={self.connect}, '
-                'read={self.read}, redirect={self.redirect}, status={self.status})').format(
-                    cls=type(self), self=self)
-
-
-# For backwards compatibility (equivalent to pre-v1.9):
-Retry.DEFAULT = Retry(3)
diff --git a/collectors/python.d.plugin/python_modules/urllib3/util/selectors.py b/collectors/python.d.plugin/python_modules/urllib3/util/selectors.py
deleted file mode 100644
index de5e49838..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/util/selectors.py
+++ /dev/null
@@ -1,588 +0,0 @@
-# SPDX-License-Identifier: MIT
-# Backport of selectors.py from Python 3.5+ to support Python < 3.4
-# Also has the behavior specified in PEP 475 which is to retry syscalls
-# in the case of an EINTR error. This module is required because selectors34
-# does not follow this behavior and instead returns that no dile descriptor
-# events have occurred rather than retry the syscall. The decision to drop
-# support for select.devpoll is made to maintain 100% test coverage.
-
-import errno
-import math
-import select
-import socket
-import sys
-import time
-
-from collections import namedtuple
-
-try:
-    from collections import Mapping
-except ImportError:
-    from collections.abc import Mapping
-
-try:
-    monotonic = time.monotonic
-except (AttributeError, ImportError):  # Python 3.3<
-    monotonic = time.time
-
-EVENT_READ = (1 << 0)
-EVENT_WRITE = (1 << 1)
-
-HAS_SELECT = True  # Variable that shows whether the platform has a selector.
-_SYSCALL_SENTINEL = object()  # Sentinel in case a system call returns None.
-_DEFAULT_SELECTOR = None
-
-
-class SelectorError(Exception):
-    def __init__(self, errcode):
-        super(SelectorError, self).__init__()
-        self.errno = errcode
-
-    def __repr__(self):
-        return "<SelectorError errno={0}>".format(self.errno)
-
-    def __str__(self):
-        return self.__repr__()
-
-
-def _fileobj_to_fd(fileobj):
-    """ Return a file descriptor from a file object. If
-    given an integer will simply return that integer back. """
-    if isinstance(fileobj, int):
-        fd = fileobj
-    else:
-        try:
-            fd = int(fileobj.fileno())
-        except (AttributeError, TypeError, ValueError):
-            raise ValueError("Invalid file object: {0!r}".format(fileobj))
-    if fd < 0:
-        raise ValueError("Invalid file descriptor: {0}".format(fd))
-    return fd
-
-
-# Determine which function to use to wrap system calls because Python 3.5+
-# already handles the case when system calls are interrupted.
-if sys.version_info >= (3, 5):
-    def _syscall_wrapper(func, _, *args, **kwargs):
-        """ This is the short-circuit version of the below logic
-        because in Python 3.5+ all system calls automatically restart
-        and recalculate their timeouts. """
-        try:
-            return func(*args, **kwargs)
-        except (OSError, IOError, select.error) as e:
-            errcode = None
-            if hasattr(e, "errno"):
-                errcode = e.errno
-            raise SelectorError(errcode)
-else:
-    def _syscall_wrapper(func, recalc_timeout, *args, **kwargs):
-        """ Wrapper function for syscalls that could fail due to EINTR.
-        All functions should be retried if there is time left in the timeout
-        in accordance with PEP 475. """
-        timeout = kwargs.get("timeout", None)
-        if timeout is None:
-            expires = None
-            recalc_timeout = False
-        else:
-            timeout = float(timeout)
-            if timeout < 0.0:  # Timeout less than 0 treated as no timeout.
-                expires = None
-            else:
-                expires = monotonic() + timeout
-
-        args = list(args)
-        if recalc_timeout and "timeout" not in kwargs:
-            raise ValueError(
-                "Timeout must be in args or kwargs to be recalculated")
-
-        result = _SYSCALL_SENTINEL
-        while result is _SYSCALL_SENTINEL:
-            try:
-                result = func(*args, **kwargs)
-            # OSError is thrown by select.select
-            # IOError is thrown by select.epoll.poll
-            # select.error is thrown by select.poll.poll
-            # Aren't we thankful for Python 3.x rework for exceptions?
-            except (OSError, IOError, select.error) as e:
-                # select.error wasn't a subclass of OSError in the past.
-                errcode = None
-                if hasattr(e, "errno"):
-                    errcode = e.errno
-                elif hasattr(e, "args"):
-                    errcode = e.args[0]
-
-                # Also test for the Windows equivalent of EINTR.
-                is_interrupt = (errcode == errno.EINTR or (hasattr(errno, "WSAEINTR") and
-                                                           errcode == errno.WSAEINTR))
-
-                if is_interrupt:
-                    if expires is not None:
-                        current_time = monotonic()
-                        if current_time > expires:
-                            raise OSError(errno=errno.ETIMEDOUT)
-                        if recalc_timeout:
-                            if "timeout" in kwargs:
-                                kwargs["timeout"] = expires - current_time
-                    continue
-                if errcode:
-                    raise SelectorError(errcode)
-                else:
-                    raise
-        return result
-
-
-SelectorKey = namedtuple('SelectorKey', ['fileobj', 'fd', 'events', 'data'])
-
-
-class _SelectorMapping(Mapping):
-    """ Mapping of file objects to selector keys """
-
-    def __init__(self, selector):
-        self._selector = selector
-
-    def __len__(self):
-        return len(self._selector._fd_to_key)
-
-    def __getitem__(self, fileobj):
-        try:
-            fd = self._selector._fileobj_lookup(fileobj)
-            return self._selector._fd_to_key[fd]
-        except KeyError:
-            raise KeyError("{0!r} is not registered.".format(fileobj))
-
-    def __iter__(self):
-        return iter(self._selector._fd_to_key)
-
-
-class BaseSelector(object):
-    """ Abstract Selector class
-
-    A selector supports registering file objects to be monitored
-    for specific I/O events.
-
-    A file object is a file descriptor or any object with a
-    `fileno()` method. An arbitrary object can be attached to the
-    file object which can be used for example to store context info,
-    a callback, etc.
-
-    A selector can use various implementations (select(), poll(), epoll(),
-    and kqueue()) depending on the platform. The 'DefaultSelector' class uses
-    the most efficient implementation for the current platform.
-    """
-    def __init__(self):
-        # Maps file descriptors to keys.
-        self._fd_to_key = {}
-
-        # Read-only mapping returned by get_map()
-        self._map = _SelectorMapping(self)
-
-    def _fileobj_lookup(self, fileobj):
-        """ Return a file descriptor from a file object.
-        This wraps _fileobj_to_fd() to do an exhaustive
-        search in case the object is invalid but we still
-        have it in our map. Used by unregister() so we can
-        unregister an object that was previously registered
-        even if it is closed. It is also used by _SelectorMapping
-        """
-        try:
-            return _fileobj_to_fd(fileobj)
-        except ValueError:
-
-            # Search through all our mapped keys.
-            for key in self._fd_to_key.values():
-                if key.fileobj is fileobj:
-                    return key.fd
-
-            # Raise ValueError after all.
-            raise
-
-    def register(self, fileobj, events, data=None):
-        """ Register a file object for a set of events to monitor. """
-        if (not events) or (events & ~(EVENT_READ | EVENT_WRITE)):
-            raise ValueError("Invalid events: {0!r}".format(events))
-
-        key = SelectorKey(fileobj, self._fileobj_lookup(fileobj), events, data)
-
-        if key.fd in self._fd_to_key:
-            raise KeyError("{0!r} (FD {1}) is already registered"
-                           .format(fileobj, key.fd))
-
-        self._fd_to_key[key.fd] = key
-        return key
-
-    def unregister(self, fileobj):
-        """ Unregister a file object from being monitored. """
-        try:
-            key = self._fd_to_key.pop(self._fileobj_lookup(fileobj))
-        except KeyError:
-            raise KeyError("{0!r} is not registered".format(fileobj))
-
-        # Getting the fileno of a closed socket on Windows errors with EBADF.
-        except socket.error as e:  # Platform-specific: Windows.
-            if e.errno != errno.EBADF:
-                raise
-            else:
-                for key in self._fd_to_key.values():
-                    if key.fileobj is fileobj:
-                        self._fd_to_key.pop(key.fd)
-                        break
-                else:
-                    raise KeyError("{0!r} is not registered".format(fileobj))
-        return key
-
-    def modify(self, fileobj, events, data=None):
-        """ Change a registered file object monitored events and data. """
-        # NOTE: Some subclasses optimize this operation even further.
-        try:
-            key = self._fd_to_key[self._fileobj_lookup(fileobj)]
-        except KeyError:
-            raise KeyError("{0!r} is not registered".format(fileobj))
-
-        if events != key.events:
-            self.unregister(fileobj)
-            key = self.register(fileobj, events, data)
-
-        elif data != key.data:
-            # Use a shortcut to update the data.
-            key = key._replace(data=data)
-            self._fd_to_key[key.fd] = key
-
-        return key
-
-    def select(self, timeout=None):
-        """ Perform the actual selection until some monitored file objects
-        are ready or the timeout expires. """
-        raise NotImplementedError()
-
-    def close(self):
-        """ Close the selector. This must be called to ensure that all
-        underlying resources are freed. """
-        self._fd_to_key.clear()
-        self._map = None
-
-    def get_key(self, fileobj):
-        """ Return the key associated with a registered file object. """
-        mapping = self.get_map()
-        if mapping is None:
-            raise RuntimeError("Selector is closed")
-        try:
-            return mapping[fileobj]
-        except KeyError:
-            raise KeyError("{0!r} is not registered".format(fileobj))
-
-    def get_map(self):
-        """ Return a mapping of file objects to selector keys """
-        return self._map
-
-    def _key_from_fd(self, fd):
-        """ Return the key associated to a given file descriptor
-         Return None if it is not found. """
-        try:
-            return self._fd_to_key[fd]
-        except KeyError:
-            return None
-
-    def __enter__(self):
-        return self
-
-    def __exit__(self, *args):
-        self.close()
-
-
-# Almost all platforms have select.select()
-if hasattr(select, "select"):
-    class SelectSelector(BaseSelector):
-        """ Select-based selector. """
-        def __init__(self):
-            super(SelectSelector, self).__init__()
-            self._readers = set()
-            self._writers = set()
-
-        def register(self, fileobj, events, data=None):
-            key = super(SelectSelector, self).register(fileobj, events, data)
-            if events & EVENT_READ:
-                self._readers.add(key.fd)
-            if events & EVENT_WRITE:
-                self._writers.add(key.fd)
-            return key
-
-        def unregister(self, fileobj):
-            key = super(SelectSelector, self).unregister(fileobj)
-            self._readers.discard(key.fd)
-            self._writers.discard(key.fd)
-            return key
-
-        def _select(self, r, w, timeout=None):
-            """ Wrapper for select.select because timeout is a positional arg """
-            return select.select(r, w, [], timeout)
-
-        def select(self, timeout=None):
-            # Selecting on empty lists on Windows errors out.
-            if not len(self._readers) and not len(self._writers):
-                return []
-
-            timeout = None if timeout is None else max(timeout, 0.0)
-            ready = []
-            r, w, _ = _syscall_wrapper(self._select, True, self._readers,
-                                       self._writers, timeout)
-            r = set(r)
-            w = set(w)
-            for fd in r | w:
-                events = 0
-                if fd in r:
-                    events |= EVENT_READ
-                if fd in w:
-                    events |= EVENT_WRITE
-
-                key = self._key_from_fd(fd)
-                if key:
-                    ready.append((key, events & key.events))
-            return ready
-
-
-if hasattr(select, "poll"):
-    class PollSelector(BaseSelector):
-        """ Poll-based selector """
-        def __init__(self):
-            super(PollSelector, self).__init__()
-            self._poll = select.poll()
-
-        def register(self, fileobj, events, data=None):
-            key = super(PollSelector, self).register(fileobj, events, data)
-            event_mask = 0
-            if events & EVENT_READ:
-                event_mask |= select.POLLIN
-            if events & EVENT_WRITE:
-                event_mask |= select.POLLOUT
-            self._poll.register(key.fd, event_mask)
-            return key
-
-        def unregister(self, fileobj):
-            key = super(PollSelector, self).unregister(fileobj)
-            self._poll.unregister(key.fd)
-            return key
-
-        def _wrap_poll(self, timeout=None):
-            """ Wrapper function for select.poll.poll() so that
-            _syscall_wrapper can work with only seconds. """
-            if timeout is not None:
-                if timeout <= 0:
-                    timeout = 0
-                else:
-                    # select.poll.poll() has a resolution of 1 millisecond,
-                    # round away from zero to wait *at least* timeout seconds.
-                    timeout = math.ceil(timeout * 1e3)
-
-            result = self._poll.poll(timeout)
-            return result
-
-        def select(self, timeout=None):
-            ready = []
-            fd_events = _syscall_wrapper(self._wrap_poll, True, timeout=timeout)
-            for fd, event_mask in fd_events:
-                events = 0
-                if event_mask & ~select.POLLIN:
-                    events |= EVENT_WRITE
-                if event_mask & ~select.POLLOUT:
-                    events |= EVENT_READ
-
-                key = self._key_from_fd(fd)
-                if key:
-                    ready.append((key, events & key.events))
-
-            return ready
-
-
-if hasattr(select, "epoll"):
-    class EpollSelector(BaseSelector):
-        """ Epoll-based selector """
-        def __init__(self):
-            super(EpollSelector, self).__init__()
-            self._epoll = select.epoll()
-
-        def fileno(self):
-            return self._epoll.fileno()
-
-        def register(self, fileobj, events, data=None):
-            key = super(EpollSelector, self).register(fileobj, events, data)
-            events_mask = 0
-            if events & EVENT_READ:
-                events_mask |= select.EPOLLIN
-            if events & EVENT_WRITE:
-                events_mask |= select.EPOLLOUT
-            _syscall_wrapper(self._epoll.register, False, key.fd, events_mask)
-            return key
-
-        def unregister(self, fileobj):
-            key = super(EpollSelector, self).unregister(fileobj)
-            try:
-                _syscall_wrapper(self._epoll.unregister, False, key.fd)
-            except SelectorError:
-                # This can occur when the fd was closed since registry.
-                pass
-            return key
-
-        def select(self, timeout=None):
-            if timeout is not None:
-                if timeout <= 0:
-                    timeout = 0.0
-                else:
-                    # select.epoll.poll() has a resolution of 1 millisecond
-                    # but luckily takes seconds so we don't need a wrapper
-                    # like PollSelector. Just for better rounding.
-                    timeout = math.ceil(timeout * 1e3) * 1e-3
-                timeout = float(timeout)
-            else:
-                timeout = -1.0  # epoll.poll() must have a float.
-
-            # We always want at least 1 to ensure that select can be called
-            # with no file descriptors registered. Otherwise will fail.
-            max_events = max(len(self._fd_to_key), 1)
-
-            ready = []
-            fd_events = _syscall_wrapper(self._epoll.poll, True,
-                                         timeout=timeout,
-                                         maxevents=max_events)
-            for fd, event_mask in fd_events:
-                events = 0
-                if event_mask & ~select.EPOLLIN:
-                    events |= EVENT_WRITE
-                if event_mask & ~select.EPOLLOUT:
-                    events |= EVENT_READ
-
-                key = self._key_from_fd(fd)
-                if key:
-                    ready.append((key, events & key.events))
-            return ready
-
-        def close(self):
-            self._epoll.close()
-            super(EpollSelector, self).close()
-
-
-if hasattr(select, "kqueue"):
-    class KqueueSelector(BaseSelector):
-        """ Kqueue / Kevent-based selector """
-        def __init__(self):
-            super(KqueueSelector, self).__init__()
-            self._kqueue = select.kqueue()
-
-        def fileno(self):
-            return self._kqueue.fileno()
-
-        def register(self, fileobj, events, data=None):
-            key = super(KqueueSelector, self).register(fileobj, events, data)
-            if events & EVENT_READ:
-                kevent = select.kevent(key.fd,
-                                       select.KQ_FILTER_READ,
-                                       select.KQ_EV_ADD)
-
-                _syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
-
-            if events & EVENT_WRITE:
-                kevent = select.kevent(key.fd,
-                                       select.KQ_FILTER_WRITE,
-                                       select.KQ_EV_ADD)
-
-                _syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
-
-            return key
-
-        def unregister(self, fileobj):
-            key = super(KqueueSelector, self).unregister(fileobj)
-            if key.events & EVENT_READ:
-                kevent = select.kevent(key.fd,
-                                       select.KQ_FILTER_READ,
-                                       select.KQ_EV_DELETE)
-                try:
-                    _syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
-                except SelectorError:
-                    pass
-            if key.events & EVENT_WRITE:
-                kevent = select.kevent(key.fd,
-                                       select.KQ_FILTER_WRITE,
-                                       select.KQ_EV_DELETE)
-                try:
-                    _syscall_wrapper(self._kqueue.control, False, [kevent], 0, 0)
-                except SelectorError:
-                    pass
-
-            return key
-
-        def select(self, timeout=None):
-            if timeout is not None:
-                timeout = max(timeout, 0)
-
-            max_events = len(self._fd_to_key) * 2
-            ready_fds = {}
-
-            kevent_list = _syscall_wrapper(self._kqueue.control, True,
-                                           None, max_events, timeout)
-
-            for kevent in kevent_list:
-                fd = kevent.ident
-                event_mask = kevent.filter
-                events = 0
-                if event_mask == select.KQ_FILTER_READ:
-                    events |= EVENT_READ
-                if event_mask == select.KQ_FILTER_WRITE:
-                    events |= EVENT_WRITE
-
-                key = self._key_from_fd(fd)
-                if key:
-                    if key.fd not in ready_fds:
-                        ready_fds[key.fd] = (key, events & key.events)
-                    else:
-                        old_events = ready_fds[key.fd][1]
-                        ready_fds[key.fd] = (key, (events | old_events) & key.events)
-
-            return list(ready_fds.values())
-
-        def close(self):
-            self._kqueue.close()
-            super(KqueueSelector, self).close()
-
-
-if not hasattr(select, 'select'):  # Platform-specific: AppEngine
-    HAS_SELECT = False
-
-
-def _can_allocate(struct):
-    """ Checks that select structs can be allocated by the underlying
-    operating system, not just advertised by the select module. We don't
-    check select() because we'll be hopeful that most platforms that
-    don't have it available will not advertise it. (ie: GAE) """
-    try:
-        # select.poll() objects won't fail until used.
-        if struct == 'poll':
-            p = select.poll()
-            p.poll(0)
-
-        # All others will fail on allocation.
-        else:
-            getattr(select, struct)().close()
-        return True
-    except (OSError, AttributeError) as e:
-        return False
-
-
-# Choose the best implementation, roughly:
-# kqueue == epoll > poll > select. Devpoll not supported. (See above)
-# select() also can't accept a FD > FD_SETSIZE (usually around 1024)
-def DefaultSelector():
-    """ This function serves as a first call for DefaultSelector to
-    detect if the select module is being monkey-patched incorrectly
-    by eventlet, greenlet, and preserve proper behavior. """
-    global _DEFAULT_SELECTOR
-    if _DEFAULT_SELECTOR is None:
-        if _can_allocate('kqueue'):
-            _DEFAULT_SELECTOR = KqueueSelector
-        elif _can_allocate('epoll'):
-            _DEFAULT_SELECTOR = EpollSelector
-        elif _can_allocate('poll'):
-            _DEFAULT_SELECTOR = PollSelector
-        elif hasattr(select, 'select'):
-            _DEFAULT_SELECTOR = SelectSelector
-        else:  # Platform-specific: AppEngine
-            raise ValueError('Platform does not have a selector')
-    return _DEFAULT_SELECTOR()
diff --git a/collectors/python.d.plugin/python_modules/urllib3/util/ssl_.py b/collectors/python.d.plugin/python_modules/urllib3/util/ssl_.py
deleted file mode 100644
index ece3ec39e..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/util/ssl_.py
+++ /dev/null
@@ -1,338 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-import errno
-import warnings
-import hmac
-
-from binascii import hexlify, unhexlify
-from hashlib import md5, sha1, sha256
-
-from ..exceptions import SSLError, InsecurePlatformWarning, SNIMissingWarning
-
-
-SSLContext = None
-HAS_SNI = False
-IS_PYOPENSSL = False
-IS_SECURETRANSPORT = False
-
-# Maps the length of a digest to a possible hash function producing this digest
-HASHFUNC_MAP = {
-    32: md5,
-    40: sha1,
-    64: sha256,
-}
-
-
-def _const_compare_digest_backport(a, b):
-    """
-    Compare two digests of equal length in constant time.
-
-    The digests must be of type str/bytes.
-    Returns True if the digests match, and False otherwise.
-    """
-    result = abs(len(a) - len(b))
-    for l, r in zip(bytearray(a), bytearray(b)):
-        result |= l ^ r
-    return result == 0
-
-
-_const_compare_digest = getattr(hmac, 'compare_digest',
-                                _const_compare_digest_backport)
-
-
-try:  # Test for SSL features
-    import ssl
-    from ssl import wrap_socket, CERT_NONE, PROTOCOL_SSLv23
-    from ssl import HAS_SNI  # Has SNI?
-except ImportError:
-    pass
-
-
-try:
-    from ssl import OP_NO_SSLv2, OP_NO_SSLv3, OP_NO_COMPRESSION
-except ImportError:
-    OP_NO_SSLv2, OP_NO_SSLv3 = 0x1000000, 0x2000000
-    OP_NO_COMPRESSION = 0x20000
-
-# A secure default.
-# Sources for more information on TLS ciphers:
-#
-# - https://wiki.mozilla.org/Security/Server_Side_TLS
-# - https://www.ssllabs.com/projects/best-practices/index.html
-# - https://hynek.me/articles/hardening-your-web-servers-ssl-ciphers/
-#
-# The general intent is:
-# - Prefer cipher suites that offer perfect forward secrecy (DHE/ECDHE),
-# - prefer ECDHE over DHE for better performance,
-# - prefer any AES-GCM and ChaCha20 over any AES-CBC for better performance and
-#   security,
-# - prefer AES-GCM over ChaCha20 because hardware-accelerated AES is common,
-# - disable NULL authentication, MD5 MACs and DSS for security reasons.
-DEFAULT_CIPHERS = ':'.join([
-    'ECDH+AESGCM',
-    'ECDH+CHACHA20',
-    'DH+AESGCM',
-    'DH+CHACHA20',
-    'ECDH+AES256',
-    'DH+AES256',
-    'ECDH+AES128',
-    'DH+AES',
-    'RSA+AESGCM',
-    'RSA+AES',
-    '!aNULL',
-    '!eNULL',
-    '!MD5',
-])
-
-try:
-    from ssl import SSLContext  # Modern SSL?
-except ImportError:
-    import sys
-
-    class SSLContext(object):  # Platform-specific: Python 2 & 3.1
-        supports_set_ciphers = ((2, 7) <= sys.version_info < (3,) or
-                                (3, 2) <= sys.version_info)
-
-        def __init__(self, protocol_version):
-            self.protocol = protocol_version
-            # Use default values from a real SSLContext
-            self.check_hostname = False
-            self.verify_mode = ssl.CERT_NONE
-            self.ca_certs = None
-            self.options = 0
-            self.certfile = None
-            self.keyfile = None
-            self.ciphers = None
-
-        def load_cert_chain(self, certfile, keyfile):
-            self.certfile = certfile
-            self.keyfile = keyfile
-
-        def load_verify_locations(self, cafile=None, capath=None):
-            self.ca_certs = cafile
-
-            if capath is not None:
-                raise SSLError("CA directories not supported in older Pythons")
-
-        def set_ciphers(self, cipher_suite):
-            if not self.supports_set_ciphers:
-                raise TypeError(
-                    'Your version of Python does not support setting '
-                    'a custom cipher suite. Please upgrade to Python '
-                    '2.7, 3.2, or later if you need this functionality.'
-                )
-            self.ciphers = cipher_suite
-
-        def wrap_socket(self, socket, server_hostname=None, server_side=False):
-            warnings.warn(
-                'A true SSLContext object is not available. This prevents '
-                'urllib3 from configuring SSL appropriately and may cause '
-                'certain SSL connections to fail. You can upgrade to a newer '
-                'version of Python to solve this. For more information, see '
-                'https://urllib3.readthedocs.io/en/latest/advanced-usage.html'
-                '#ssl-warnings',
-                InsecurePlatformWarning
-            )
-            kwargs = {
-                'keyfile': self.keyfile,
-                'certfile': self.certfile,
-                'ca_certs': self.ca_certs,
-                'cert_reqs': self.verify_mode,
-                'ssl_version': self.protocol,
-                'server_side': server_side,
-            }
-            if self.supports_set_ciphers:  # Platform-specific: Python 2.7+
-                return wrap_socket(socket, ciphers=self.ciphers, **kwargs)
-            else:  # Platform-specific: Python 2.6
-                return wrap_socket(socket, **kwargs)
-
-
-def assert_fingerprint(cert, fingerprint):
-    """
-    Checks if given fingerprint matches the supplied certificate.
-
-    :param cert:
-        Certificate as bytes object.
-    :param fingerprint:
-        Fingerprint as string of hexdigits, can be interspersed by colons.
-    """
-
-    fingerprint = fingerprint.replace(':', '').lower()
-    digest_length = len(fingerprint)
-    hashfunc = HASHFUNC_MAP.get(digest_length)
-    if not hashfunc:
-        raise SSLError(
-            'Fingerprint of invalid length: {0}'.format(fingerprint))
-
-    # We need encode() here for py32; works on py2 and p33.
-    fingerprint_bytes = unhexlify(fingerprint.encode())
-
-    cert_digest = hashfunc(cert).digest()
-
-    if not _const_compare_digest(cert_digest, fingerprint_bytes):
-        raise SSLError('Fingerprints did not match. Expected "{0}", got "{1}".'
-                       .format(fingerprint, hexlify(cert_digest)))
-
-
-def resolve_cert_reqs(candidate):
-    """
-    Resolves the argument to a numeric constant, which can be passed to
-    the wrap_socket function/method from the ssl module.
-    Defaults to :data:`ssl.CERT_NONE`.
-    If given a string it is assumed to be the name of the constant in the
-    :mod:`ssl` module or its abbrevation.
-    (So you can specify `REQUIRED` instead of `CERT_REQUIRED`.
-    If it's neither `None` nor a string we assume it is already the numeric
-    constant which can directly be passed to wrap_socket.
-    """
-    if candidate is None:
-        return CERT_NONE
-
-    if isinstance(candidate, str):
-        res = getattr(ssl, candidate, None)
-        if res is None:
-            res = getattr(ssl, 'CERT_' + candidate)
-        return res
-
-    return candidate
-
-
-def resolve_ssl_version(candidate):
-    """
-    like resolve_cert_reqs
-    """
-    if candidate is None:
-        return PROTOCOL_SSLv23
-
-    if isinstance(candidate, str):
-        res = getattr(ssl, candidate, None)
-        if res is None:
-            res = getattr(ssl, 'PROTOCOL_' + candidate)
-        return res
-
-    return candidate
-
-
-def create_urllib3_context(ssl_version=None, cert_reqs=None,
-                           options=None, ciphers=None):
-    """All arguments have the same meaning as ``ssl_wrap_socket``.
-
-    By default, this function does a lot of the same work that
-    ``ssl.create_default_context`` does on Python 3.4+. It:
-
-    - Disables SSLv2, SSLv3, and compression
-    - Sets a restricted set of server ciphers
-
-    If you wish to enable SSLv3, you can do::
-
-        from urllib3.util import ssl_
-        context = ssl_.create_urllib3_context()
-        context.options &= ~ssl_.OP_NO_SSLv3
-
-    You can do the same to enable compression (substituting ``COMPRESSION``
-    for ``SSLv3`` in the last line above).
-
-    :param ssl_version:
-        The desired protocol version to use. This will default to
-        PROTOCOL_SSLv23 which will negotiate the highest protocol that both
-        the server and your installation of OpenSSL support.
-    :param cert_reqs:
-        Whether to require the certificate verification. This defaults to
-        ``ssl.CERT_REQUIRED``.
-    :param options:
-        Specific OpenSSL options. These default to ``ssl.OP_NO_SSLv2``,
-        ``ssl.OP_NO_SSLv3``, ``ssl.OP_NO_COMPRESSION``.
-    :param ciphers:
-        Which cipher suites to allow the server to select.
-    :returns:
-        Constructed SSLContext object with specified options
-    :rtype: SSLContext
-    """
-    context = SSLContext(ssl_version or ssl.PROTOCOL_SSLv23)
-
-    # Setting the default here, as we may have no ssl module on import
-    cert_reqs = ssl.CERT_REQUIRED if cert_reqs is None else cert_reqs
-
-    if options is None:
-        options = 0
-        # SSLv2 is easily broken and is considered harmful and dangerous
-        options |= OP_NO_SSLv2
-        # SSLv3 has several problems and is now dangerous
-        options |= OP_NO_SSLv3
-        # Disable compression to prevent CRIME attacks for OpenSSL 1.0+
-        # (issue #309)
-        options |= OP_NO_COMPRESSION
-
-    context.options |= options
-
-    if getattr(context, 'supports_set_ciphers', True):  # Platform-specific: Python 2.6
-        context.set_ciphers(ciphers or DEFAULT_CIPHERS)
-
-    context.verify_mode = cert_reqs
-    if getattr(context, 'check_hostname', None) is not None:  # Platform-specific: Python 3.2
-        # We do our own verification, including fingerprints and alternative
-        # hostnames. So disable it here
-        context.check_hostname = False
-    return context
-
-
-def ssl_wrap_socket(sock, keyfile=None, certfile=None, cert_reqs=None,
-                    ca_certs=None, server_hostname=None,
-                    ssl_version=None, ciphers=None, ssl_context=None,
-                    ca_cert_dir=None):
-    """
-    All arguments except for server_hostname, ssl_context, and ca_cert_dir have
-    the same meaning as they do when using :func:`ssl.wrap_socket`.
-
-    :param server_hostname:
-        When SNI is supported, the expected hostname of the certificate
-    :param ssl_context:
-        A pre-made :class:`SSLContext` object. If none is provided, one will
-        be created using :func:`create_urllib3_context`.
-    :param ciphers:
-        A string of ciphers we wish the client to support. This is not
-        supported on Python 2.6 as the ssl module does not support it.
-    :param ca_cert_dir:
-        A directory containing CA certificates in multiple separate files, as
-        supported by OpenSSL's -CApath flag or the capath argument to
-        SSLContext.load_verify_locations().
-    """
-    context = ssl_context
-    if context is None:
-        # Note: This branch of code and all the variables in it are no longer
-        # used by urllib3 itself. We should consider deprecating and removing
-        # this code.
-        context = create_urllib3_context(ssl_version, cert_reqs,
-                                         ciphers=ciphers)
-
-    if ca_certs or ca_cert_dir:
-        try:
-            context.load_verify_locations(ca_certs, ca_cert_dir)
-        except IOError as e:  # Platform-specific: Python 2.6, 2.7, 3.2
-            raise SSLError(e)
-        # Py33 raises FileNotFoundError which subclasses OSError
-        # These are not equivalent unless we check the errno attribute
-        except OSError as e:  # Platform-specific: Python 3.3 and beyond
-            if e.errno == errno.ENOENT:
-                raise SSLError(e)
-            raise
-    elif getattr(context, 'load_default_certs', None) is not None:
-        # try to load OS default certs; works well on Windows (require Python3.4+)
-        context.load_default_certs()
-
-    if certfile:
-        context.load_cert_chain(certfile, keyfile)
-    if HAS_SNI:  # Platform-specific: OpenSSL with enabled SNI
-        return context.wrap_socket(sock, server_hostname=server_hostname)
-
-    warnings.warn(
-        'An HTTPS request has been made, but the SNI (Subject Name '
-        'Indication) extension to TLS is not available on this platform. '
-        'This may cause the server to present an incorrect TLS '
-        'certificate, which can cause validation failures. You can upgrade to '
-        'a newer version of Python to solve this. For more information, see '
-        'https://urllib3.readthedocs.io/en/latest/advanced-usage.html'
-        '#ssl-warnings',
-        SNIMissingWarning
-    )
-    return context.wrap_socket(sock)
diff --git a/collectors/python.d.plugin/python_modules/urllib3/util/timeout.py b/collectors/python.d.plugin/python_modules/urllib3/util/timeout.py
deleted file mode 100644
index 4041cf9b9..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/util/timeout.py
+++ /dev/null
@@ -1,243 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-# The default socket timeout, used by httplib to indicate that no timeout was
-# specified by the user
-from socket import _GLOBAL_DEFAULT_TIMEOUT
-import time
-
-from ..exceptions import TimeoutStateError
-
-# A sentinel value to indicate that no timeout was specified by the user in
-# urllib3
-_Default = object()
-
-
-# Use time.monotonic if available.
-current_time = getattr(time, "monotonic", time.time)
-
-
-class Timeout(object):
-    """ Timeout configuration.
-
-    Timeouts can be defined as a default for a pool::
-
-        timeout = Timeout(connect=2.0, read=7.0)
-        http = PoolManager(timeout=timeout)
-        response = http.request('GET', 'http://example.com/')
-
-    Or per-request (which overrides the default for the pool)::
-
-        response = http.request('GET', 'http://example.com/', timeout=Timeout(10))
-
-    Timeouts can be disabled by setting all the parameters to ``None``::
-
-        no_timeout = Timeout(connect=None, read=None)
-        response = http.request('GET', 'http://example.com/, timeout=no_timeout)
-
-
-    :param total:
-        This combines the connect and read timeouts into one; the read timeout
-        will be set to the time leftover from the connect attempt. In the
-        event that both a connect timeout and a total are specified, or a read
-        timeout and a total are specified, the shorter timeout will be applied.
-
-        Defaults to None.
-
-    :type total: integer, float, or None
-
-    :param connect:
-        The maximum amount of time to wait for a connection attempt to a server
-        to succeed. Omitting the parameter will default the connect timeout to
-        the system default, probably `the global default timeout in socket.py
-        <http://hg.python.org/cpython/file/603b4d593758/Lib/socket.py#l535>`_.
-        None will set an infinite timeout for connection attempts.
-
-    :type connect: integer, float, or None
-
-    :param read:
-        The maximum amount of time to wait between consecutive
-        read operations for a response from the server. Omitting
-        the parameter will default the read timeout to the system
-        default, probably `the global default timeout in socket.py
-        <http://hg.python.org/cpython/file/603b4d593758/Lib/socket.py#l535>`_.
-        None will set an infinite timeout.
-
-    :type read: integer, float, or None
-
-    .. note::
-
-        Many factors can affect the total amount of time for urllib3 to return
-        an HTTP response.
-
-        For example, Python's DNS resolver does not obey the timeout specified
-        on the socket. Other factors that can affect total request time include
-        high CPU load, high swap, the program running at a low priority level,
-        or other behaviors.
-
-        In addition, the read and total timeouts only measure the time between
-        read operations on the socket connecting the client and the server,
-        not the total amount of time for the request to return a complete
-        response. For most requests, the timeout is raised because the server
-        has not sent the first byte in the specified time. This is not always
-        the case; if a server streams one byte every fifteen seconds, a timeout
-        of 20 seconds will not trigger, even though the request will take
-        several minutes to complete.
-
-        If your goal is to cut off any request after a set amount of wall clock
-        time, consider having a second "watcher" thread to cut off a slow
-        request.
-    """
-
-    #: A sentinel object representing the default timeout value
-    DEFAULT_TIMEOUT = _GLOBAL_DEFAULT_TIMEOUT
-
-    def __init__(self, total=None, connect=_Default, read=_Default):
-        self._connect = self._validate_timeout(connect, 'connect')
-        self._read = self._validate_timeout(read, 'read')
-        self.total = self._validate_timeout(total, 'total')
-        self._start_connect = None
-
-    def __str__(self):
-        return '%s(connect=%r, read=%r, total=%r)' % (
-            type(self).__name__, self._connect, self._read, self.total)
-
-    @classmethod
-    def _validate_timeout(cls, value, name):
-        """ Check that a timeout attribute is valid.
-
-        :param value: The timeout value to validate
-        :param name: The name of the timeout attribute to validate. This is
-            used to specify in error messages.
-        :return: The validated and casted version of the given value.
-        :raises ValueError: If it is a numeric value less than or equal to
-            zero, or the type is not an integer, float, or None.
-        """
-        if value is _Default:
-            return cls.DEFAULT_TIMEOUT
-
-        if value is None or value is cls.DEFAULT_TIMEOUT:
-            return value
-
-        if isinstance(value, bool):
-            raise ValueError("Timeout cannot be a boolean value. It must "
-                             "be an int, float or None.")
-        try:
-            float(value)
-        except (TypeError, ValueError):
-            raise ValueError("Timeout value %s was %s, but it must be an "
-                             "int, float or None." % (name, value))
-
-        try:
-            if value <= 0:
-                raise ValueError("Attempted to set %s timeout to %s, but the "
-                                 "timeout cannot be set to a value less "
-                                 "than or equal to 0." % (name, value))
-        except TypeError:  # Python 3
-            raise ValueError("Timeout value %s was %s, but it must be an "
-                             "int, float or None." % (name, value))
-
-        return value
-
-    @classmethod
-    def from_float(cls, timeout):
-        """ Create a new Timeout from a legacy timeout value.
-
-        The timeout value used by httplib.py sets the same timeout on the
-        connect(), and recv() socket requests. This creates a :class:`Timeout`
-        object that sets the individual timeouts to the ``timeout`` value
-        passed to this function.
-
-        :param timeout: The legacy timeout value.
-        :type timeout: integer, float, sentinel default object, or None
-        :return: Timeout object
-        :rtype: :class:`Timeout`
-        """
-        return Timeout(read=timeout, connect=timeout)
-
-    def clone(self):
-        """ Create a copy of the timeout object
-
-        Timeout properties are stored per-pool but each request needs a fresh
-        Timeout object to ensure each one has its own start/stop configured.
-
-        :return: a copy of the timeout object
-        :rtype: :class:`Timeout`
-        """
-        # We can't use copy.deepcopy because that will also create a new object
-        # for _GLOBAL_DEFAULT_TIMEOUT, which socket.py uses as a sentinel to
-        # detect the user default.
-        return Timeout(connect=self._connect, read=self._read,
-                       total=self.total)
-
-    def start_connect(self):
-        """ Start the timeout clock, used during a connect() attempt
-
-        :raises urllib3.exceptions.TimeoutStateError: if you attempt
-            to start a timer that has been started already.
-        """
-        if self._start_connect is not None:
-            raise TimeoutStateError("Timeout timer has already been started.")
-        self._start_connect = current_time()
-        return self._start_connect
-
-    def get_connect_duration(self):
-        """ Gets the time elapsed since the call to :meth:`start_connect`.
-
-        :return: Elapsed time.
-        :rtype: float
-        :raises urllib3.exceptions.TimeoutStateError: if you attempt
-            to get duration for a timer that hasn't been started.
-        """
-        if self._start_connect is None:
-            raise TimeoutStateError("Can't get connect duration for timer "
-                                    "that has not started.")
-        return current_time() - self._start_connect
-
-    @property
-    def connect_timeout(self):
-        """ Get the value to use when setting a connection timeout.
-
-        This will be a positive float or integer, the value None
-        (never timeout), or the default system timeout.
-
-        :return: Connect timeout.
-        :rtype: int, float, :attr:`Timeout.DEFAULT_TIMEOUT` or None
-        """
-        if self.total is None:
-            return self._connect
-
-        if self._connect is None or self._connect is self.DEFAULT_TIMEOUT:
-            return self.total
-
-        return min(self._connect, self.total)
-
-    @property
-    def read_timeout(self):
-        """ Get the value for the read timeout.
-
-        This assumes some time has elapsed in the connection timeout and
-        computes the read timeout appropriately.
-
-        If self.total is set, the read timeout is dependent on the amount of
-        time taken by the connect timeout. If the connection time has not been
-        established, a :exc:`~urllib3.exceptions.TimeoutStateError` will be
-        raised.
-
-        :return: Value to use for the read timeout.
-        :rtype: int, float, :attr:`Timeout.DEFAULT_TIMEOUT` or None
-        :raises urllib3.exceptions.TimeoutStateError: If :meth:`start_connect`
-            has not yet been called on this object.
-        """
-        if (self.total is not None and
-                self.total is not self.DEFAULT_TIMEOUT and
-                self._read is not None and
-                self._read is not self.DEFAULT_TIMEOUT):
-            # In case the connect timeout has not yet been established.
-            if self._start_connect is None:
-                return self._read
-            return max(0, min(self.total - self.get_connect_duration(),
-                              self._read))
-        elif self.total is not None and self.total is not self.DEFAULT_TIMEOUT:
-            return max(0, self.total - self.get_connect_duration())
-        else:
-            return self._read
diff --git a/collectors/python.d.plugin/python_modules/urllib3/util/url.py b/collectors/python.d.plugin/python_modules/urllib3/util/url.py
deleted file mode 100644
index 99fd6534a..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/util/url.py
+++ /dev/null
@@ -1,231 +0,0 @@
-# SPDX-License-Identifier: MIT
-from __future__ import absolute_import
-from collections import namedtuple
-
-from ..exceptions import LocationParseError
-
-
-url_attrs = ['scheme', 'auth', 'host', 'port', 'path', 'query', 'fragment']
-
-# We only want to normalize urls with an HTTP(S) scheme.
-# urllib3 infers URLs without a scheme (None) to be http.
-NORMALIZABLE_SCHEMES = ('http', 'https', None)
-
-
-class Url(namedtuple('Url', url_attrs)):
-    """
-    Datastructure for representing an HTTP URL. Used as a return value for
-    :func:`parse_url`. Both the scheme and host are normalized as they are
-    both case-insensitive according to RFC 3986.
-    """
-    __slots__ = ()
-
-    def __new__(cls, scheme=None, auth=None, host=None, port=None, path=None,
-                query=None, fragment=None):
-        if path and not path.startswith('/'):
-            path = '/' + path
-        if scheme:
-            scheme = scheme.lower()
-        if host and scheme in NORMALIZABLE_SCHEMES:
-            host = host.lower()
-        return super(Url, cls).__new__(cls, scheme, auth, host, port, path,
-                                       query, fragment)
-
-    @property
-    def hostname(self):
-        """For backwards-compatibility with urlparse. We're nice like that."""
-        return self.host
-
-    @property
-    def request_uri(self):
-        """Absolute path including the query string."""
-        uri = self.path or '/'
-
-        if self.query is not None:
-            uri += '?' + self.query
-
-        return uri
-
-    @property
-    def netloc(self):
-        """Network location including host and port"""
-        if self.port:
-            return '%s:%d' % (self.host, self.port)
-        return self.host
-
-    @property
-    def url(self):
-        """
-        Convert self into a url
-
-        This function should more or less round-trip with :func:`.parse_url`. The
-        returned url may not be exactly the same as the url inputted to
-        :func:`.parse_url`, but it should be equivalent by the RFC (e.g., urls
-        with a blank port will have : removed).
-
-        Example: ::
-
-            >>> U = parse_url('http://google.com/mail/')
-            >>> U.url
-            'http://google.com/mail/'
-            >>> Url('http', 'username:password', 'host.com', 80,
-            ... '/path', 'query', 'fragment').url
-            'http://username:password@host.com:80/path?query#fragment'
-        """
-        scheme, auth, host, port, path, query, fragment = self
-        url = ''
-
-        # We use "is not None" we want things to happen with empty strings (or 0 port)
-        if scheme is not None:
-            url += scheme + '://'
-        if auth is not None:
-            url += auth + '@'
-        if host is not None:
-            url += host
-        if port is not None:
-            url += ':' + str(port)
-        if path is not None:
-            url += path
-        if query is not None:
-            url += '?' + query
-        if fragment is not None:
-            url += '#' + fragment
-
-        return url
-
-    def __str__(self):
-        return self.url
-
-
-def split_first(s, delims):
-    """
-    Given a string and an iterable of delimiters, split on the first found
-    delimiter. Return two split parts and the matched delimiter.
-
-    If not found, then the first part is the full input string.
-
-    Example::
-
-        >>> split_first('foo/bar?baz', '?/=')
-        ('foo', 'bar?baz', '/')
-        >>> split_first('foo/bar?baz', '123')
-        ('foo/bar?baz', '', None)
-
-    Scales linearly with number of delims. Not ideal for large number of delims.
-    """
-    min_idx = None
-    min_delim = None
-    for d in delims:
-        idx = s.find(d)
-        if idx < 0:
-            continue
-
-        if min_idx is None or idx < min_idx:
-            min_idx = idx
-            min_delim = d
-
-    if min_idx is None or min_idx < 0:
-        return s, '', None
-
-    return s[:min_idx], s[min_idx + 1:], min_delim
-
-
-def parse_url(url):
-    """
-    Given a url, return a parsed :class:`.Url` namedtuple. Best-effort is
-    performed to parse incomplete urls. Fields not provided will be None.
-
-    Partly backwards-compatible with :mod:`urlparse`.
-
-    Example::
-
-        >>> parse_url('http://google.com/mail/')
-        Url(scheme='http', host='google.com', port=None, path='/mail/', ...)
-        >>> parse_url('google.com:80')
-        Url(scheme=None, host='google.com', port=80, path=None, ...)
-        >>> parse_url('/foo?bar')
-        Url(scheme=None, host=None, port=None, path='/foo', query='bar', ...)
-    """
-
-    # While this code has overlap with stdlib's urlparse, it is much
-    # simplified for our needs and less annoying.
-    # Additionally, this implementations does silly things to be optimal
-    # on CPython.
-
-    if not url:
-        # Empty
-        return Url()
-
-    scheme = None
-    auth = None
-    host = None
-    port = None
-    path = None
-    fragment = None
-    query = None
-
-    # Scheme
-    if '://' in url:
-        scheme, url = url.split('://', 1)
-
-    # Find the earliest Authority Terminator
-    # (http://tools.ietf.org/html/rfc3986#section-3.2)
-    url, path_, delim = split_first(url, ['/', '?', '#'])
-
-    if delim:
-        # Reassemble the path
-        path = delim + path_
-
-    # Auth
-    if '@' in url:
-        # Last '@' denotes end of auth part
-        auth, url = url.rsplit('@', 1)
-
-    # IPv6
-    if url and url[0] == '[':
-        host, url = url.split(']', 1)
-        host += ']'
-
-    # Port
-    if ':' in url:
-        _host, port = url.split(':', 1)
-
-        if not host:
-            host = _host
-
-        if port:
-            # If given, ports must be integers. No whitespace, no plus or
-            # minus prefixes, no non-integer digits such as ^2 (superscript).
-            if not port.isdigit():
-                raise LocationParseError(url)
-            try:
-                port = int(port)
-            except ValueError:
-                raise LocationParseError(url)
-        else:
-            # Blank ports are cool, too. (rfc3986#section-3.2.3)
-            port = None
-
-    elif not host and url:
-        host = url
-
-    if not path:
-        return Url(scheme, auth, host, port, path, query, fragment)
-
-    # Fragment
-    if '#' in path:
-        path, fragment = path.split('#', 1)
-
-    # Query
-    if '?' in path:
-        path, query = path.split('?', 1)
-
-    return Url(scheme, auth, host, port, path, query, fragment)
-
-
-def get_host(url):
-    """
-    Deprecated. Use :func:`parse_url` instead.
-    """
-    p = parse_url(url)
-    return p.scheme or 'http', p.hostname, p.port
diff --git a/collectors/python.d.plugin/python_modules/urllib3/util/wait.py b/collectors/python.d.plugin/python_modules/urllib3/util/wait.py
deleted file mode 100644
index 21e72979c..000000000
--- a/collectors/python.d.plugin/python_modules/urllib3/util/wait.py
+++ /dev/null
@@ -1,41 +0,0 @@
-# SPDX-License-Identifier: MIT
-from .selectors import (
-    HAS_SELECT,
-    DefaultSelector,
-    EVENT_READ,
-    EVENT_WRITE
-)
-
-
-def _wait_for_io_events(socks, events, timeout=None):
-    """ Waits for IO events to be available from a list of sockets
-    or optionally a single socket if passed in. Returns a list of
-    sockets that can be interacted with immediately. """
-    if not HAS_SELECT:
-        raise ValueError('Platform does not have a selector')
-    if not isinstance(socks, list):
-        # Probably just a single socket.
-        if hasattr(socks, "fileno"):
-            socks = [socks]
-        # Otherwise it might be a non-list iterable.
-        else:
-            socks = list(socks)
-    with DefaultSelector() as selector:
-        for sock in socks:
-            selector.register(sock, events)
-        return [key[0].fileobj for key in
-                selector.select(timeout) if key[1] & events]
-
-
-def wait_for_read(socks, timeout=None):
-    """ Waits for reading to be available from a list of sockets
-    or optionally a single socket if passed in. Returns a list of
-    sockets that can be read from immediately. """
-    return _wait_for_io_events(socks, EVENT_READ, timeout)
-
-
-def wait_for_write(socks, timeout=None):
-    """ Waits for writing to be available from a list of sockets
-    or optionally a single socket if passed in. Returns a list of
-    sockets that can be written to immediately. """
-    return _wait_for_io_events(socks, EVENT_WRITE, timeout)