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-<!--
-title: "python.d.plugin"
-custom_edit_url: "https://github.com/netdata/netdata/edit/master/collectors/python.d.plugin/README.md"
-sidebar_label: "python.d.plugin"
-learn_status: "Published"
-learn_topic_type: "Tasks"
-learn_rel_path: "Developers/External plugins/python.d.plugin"
--->
-
-# python.d.plugin
-
-`python.d.plugin` is a Netdata external plugin. It is an **orchestrator** for data collection modules written in `python`.
-
-1. It runs as an independent process `ps fax` shows it
-2. It is started and stopped automatically by Netdata
-3. It communicates with Netdata via a unidirectional pipe (sending data to the `netdata` daemon)
-4. Supports any number of data collection **modules**
-5. Allows each **module** to have one or more data collection **jobs**
-6. Each **job** is collecting one or more metrics from a single data source
-
-## Disclaimer
-
-All third party libraries should be installed system-wide or in `python_modules` directory.
-Module configurations are written in YAML and **pyYAML is required**.
-
-Every configuration file must have one of two formats:
-
-- Configuration for only one job:
-
-```yaml
-update_every : 2 # update frequency
-priority : 20000 # where it is shown on dashboard
-
-other_var1 : bla # variables passed to module
-other_var2 : alb
-```
-
-- Configuration for many jobs (ex. mysql):
-
-```yaml
-# module defaults:
-update_every : 2
-priority : 20000
-
-local: # job name
- update_every : 5 # job update frequency
- other_var1 : some_val # module specific variable
-
-other_job:
- priority : 5 # job position on dashboard
- other_var2 : val # module specific variable
-```
-
-`update_every` and `priority` are always optional.
-
-## How to debug a python module
-
-```
-# become user netdata
-sudo su -s /bin/bash netdata
-```
-
-Depending on where Netdata was installed, execute one of the following commands to trace the execution of a python module:
-
-```
-# execute the plugin in debug mode, for a specific module
-/opt/netdata/usr/libexec/netdata/plugins.d/python.d.plugin <module> debug trace
-/usr/libexec/netdata/plugins.d/python.d.plugin <module> debug trace
-```
-
-Where `[module]` is the directory name under <https://github.com/netdata/netdata/tree/master/collectors/python.d.plugin>
-
-**Note**: If you would like execute a collector in debug mode while it is still running by Netdata, you can pass the `nolock` CLI option to the above commands.
-
-## How to write a new module
-
-See [develop a custom collector in Python](https://github.com/netdata/netdata/edit/master/docs/guides/python-collector.md).