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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/python/importlib_resources
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/python/importlib_resources')
-rw-r--r--third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/LICENSE202
-rw-r--r--third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/METADATA104
-rw-r--r--third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/RECORD48
-rw-r--r--third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/WHEEL5
-rw-r--r--third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/top_level.txt1
-rw-r--r--third_party/python/importlib_resources/importlib_resources/__init__.py36
-rw-r--r--third_party/python/importlib_resources/importlib_resources/_adapters.py168
-rw-r--r--third_party/python/importlib_resources/importlib_resources/_common.py207
-rw-r--r--third_party/python/importlib_resources/importlib_resources/_compat.py109
-rw-r--r--third_party/python/importlib_resources/importlib_resources/_itertools.py38
-rw-r--r--third_party/python/importlib_resources/importlib_resources/_legacy.py120
-rw-r--r--third_party/python/importlib_resources/importlib_resources/abc.py170
-rw-r--r--third_party/python/importlib_resources/importlib_resources/py.typed0
-rw-r--r--third_party/python/importlib_resources/importlib_resources/readers.py144
-rw-r--r--third_party/python/importlib_resources/importlib_resources/simple.py106
15 files changed, 1458 insertions, 0 deletions
diff --git a/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/LICENSE b/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/LICENSE
new file mode 100644
index 0000000000..d645695673
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/LICENSE
@@ -0,0 +1,202 @@
+
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diff --git a/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/METADATA b/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/METADATA
new file mode 100644
index 0000000000..038059d306
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/METADATA
@@ -0,0 +1,104 @@
+Metadata-Version: 2.1
+Name: importlib-resources
+Version: 5.12.0
+Summary: Read resources from Python packages
+Home-page: https://github.com/python/importlib_resources
+Author: Barry Warsaw
+Author-email: barry@python.org
+Project-URL: Documentation, https://importlib-resources.readthedocs.io/
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: Apache Software License
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3 :: Only
+Requires-Python: >=3.7
+License-File: LICENSE
+Requires-Dist: zipp (>=3.1.0) ; python_version < "3.10"
+Provides-Extra: docs
+Requires-Dist: sphinx (>=3.5) ; extra == 'docs'
+Requires-Dist: jaraco.packaging (>=9) ; extra == 'docs'
+Requires-Dist: rst.linker (>=1.9) ; extra == 'docs'
+Requires-Dist: furo ; extra == 'docs'
+Requires-Dist: sphinx-lint ; extra == 'docs'
+Requires-Dist: jaraco.tidelift (>=1.4) ; extra == 'docs'
+Provides-Extra: testing
+Requires-Dist: pytest (>=6) ; extra == 'testing'
+Requires-Dist: pytest-checkdocs (>=2.4) ; extra == 'testing'
+Requires-Dist: flake8 (<5) ; extra == 'testing'
+Requires-Dist: pytest-cov ; extra == 'testing'
+Requires-Dist: pytest-enabler (>=1.3) ; extra == 'testing'
+Requires-Dist: pytest-black (>=0.3.7) ; (platform_python_implementation != "PyPy") and extra == 'testing'
+Requires-Dist: pytest-mypy (>=0.9.1) ; (platform_python_implementation != "PyPy") and extra == 'testing'
+Requires-Dist: pytest-flake8 ; (python_version < "3.12") and extra == 'testing'
+
+.. image:: https://img.shields.io/pypi/v/importlib_resources.svg
+ :target: https://pypi.org/project/importlib_resources
+
+.. image:: https://img.shields.io/pypi/pyversions/importlib_resources.svg
+
+.. image:: https://github.com/python/importlib_resources/workflows/tests/badge.svg
+ :target: https://github.com/python/importlib_resources/actions?query=workflow%3A%22tests%22
+ :alt: tests
+
+.. image:: https://img.shields.io/badge/code%20style-black-000000.svg
+ :target: https://github.com/psf/black
+ :alt: Code style: Black
+
+.. image:: https://readthedocs.org/projects/importlib-resources/badge/?version=latest
+ :target: https://importlib-resources.readthedocs.io/en/latest/?badge=latest
+
+.. image:: https://img.shields.io/badge/skeleton-2023-informational
+ :target: https://blog.jaraco.com/skeleton
+
+.. image:: https://tidelift.com/badges/package/pypi/importlib-resources
+ :target: https://tidelift.com/subscription/pkg/pypi-importlib-resources?utm_source=pypi-importlib-resources&utm_medium=readme
+
+``importlib_resources`` is a backport of Python standard library
+`importlib.resources
+<https://docs.python.org/3/library/importlib.html#module-importlib.resources>`_
+module for older Pythons.
+
+The key goal of this module is to replace parts of `pkg_resources
+<https://setuptools.readthedocs.io/en/latest/pkg_resources.html>`_ with a
+solution in Python's stdlib that relies on well-defined APIs. This makes
+reading resources included in packages easier, with more stable and consistent
+semantics.
+
+Compatibility
+=============
+
+New features are introduced in this third-party library and later merged
+into CPython. The following table indicates which versions of this library
+were contributed to different versions in the standard library:
+
+.. list-table::
+ :header-rows: 1
+
+ * - importlib_resources
+ - stdlib
+ * - 5.9
+ - 3.12
+ * - 5.7
+ - 3.11
+ * - 5.0
+ - 3.10
+ * - 1.3
+ - 3.9
+ * - 0.5 (?)
+ - 3.7
+
+For Enterprise
+==============
+
+Available as part of the Tidelift Subscription.
+
+This project and the maintainers of thousands of other packages are working with Tidelift to deliver one enterprise subscription that covers all of the open source you use.
+
+`Learn more <https://tidelift.com/subscription/pkg/pypi-importlib-resources?utm_source=pypi-importlib-resources&utm_medium=referral&utm_campaign=github>`_.
+
+Security Contact
+================
+
+To report a security vulnerability, please use the
+`Tidelift security contact <https://tidelift.com/security>`_.
+Tidelift will coordinate the fix and disclosure.
diff --git a/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/RECORD b/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/RECORD
new file mode 100644
index 0000000000..2babad09e7
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/RECORD
@@ -0,0 +1,48 @@
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diff --git a/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/WHEEL b/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/WHEEL
new file mode 100644
index 0000000000..57e3d840d5
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/WHEEL
@@ -0,0 +1,5 @@
+Wheel-Version: 1.0
+Generator: bdist_wheel (0.38.4)
+Root-Is-Purelib: true
+Tag: py3-none-any
+
diff --git a/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/top_level.txt b/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/top_level.txt
new file mode 100644
index 0000000000..58ad1bd333
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources-5.12.0.dist-info/top_level.txt
@@ -0,0 +1 @@
+importlib_resources
diff --git a/third_party/python/importlib_resources/importlib_resources/__init__.py b/third_party/python/importlib_resources/importlib_resources/__init__.py
new file mode 100644
index 0000000000..34e3a9950c
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources/__init__.py
@@ -0,0 +1,36 @@
+"""Read resources contained within a package."""
+
+from ._common import (
+ as_file,
+ files,
+ Package,
+)
+
+from ._legacy import (
+ contents,
+ open_binary,
+ read_binary,
+ open_text,
+ read_text,
+ is_resource,
+ path,
+ Resource,
+)
+
+from .abc import ResourceReader
+
+
+__all__ = [
+ 'Package',
+ 'Resource',
+ 'ResourceReader',
+ 'as_file',
+ 'contents',
+ 'files',
+ 'is_resource',
+ 'open_binary',
+ 'open_text',
+ 'path',
+ 'read_binary',
+ 'read_text',
+]
diff --git a/third_party/python/importlib_resources/importlib_resources/_adapters.py b/third_party/python/importlib_resources/importlib_resources/_adapters.py
new file mode 100644
index 0000000000..50688fbb66
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources/_adapters.py
@@ -0,0 +1,168 @@
+from contextlib import suppress
+from io import TextIOWrapper
+
+from . import abc
+
+
+class SpecLoaderAdapter:
+ """
+ Adapt a package spec to adapt the underlying loader.
+ """
+
+ def __init__(self, spec, adapter=lambda spec: spec.loader):
+ self.spec = spec
+ self.loader = adapter(spec)
+
+ def __getattr__(self, name):
+ return getattr(self.spec, name)
+
+
+class TraversableResourcesLoader:
+ """
+ Adapt a loader to provide TraversableResources.
+ """
+
+ def __init__(self, spec):
+ self.spec = spec
+
+ def get_resource_reader(self, name):
+ return CompatibilityFiles(self.spec)._native()
+
+
+def _io_wrapper(file, mode='r', *args, **kwargs):
+ if mode == 'r':
+ return TextIOWrapper(file, *args, **kwargs)
+ elif mode == 'rb':
+ return file
+ raise ValueError(f"Invalid mode value '{mode}', only 'r' and 'rb' are supported")
+
+
+class CompatibilityFiles:
+ """
+ Adapter for an existing or non-existent resource reader
+ to provide a compatibility .files().
+ """
+
+ class SpecPath(abc.Traversable):
+ """
+ Path tied to a module spec.
+ Can be read and exposes the resource reader children.
+ """
+
+ def __init__(self, spec, reader):
+ self._spec = spec
+ self._reader = reader
+
+ def iterdir(self):
+ if not self._reader:
+ return iter(())
+ return iter(
+ CompatibilityFiles.ChildPath(self._reader, path)
+ for path in self._reader.contents()
+ )
+
+ def is_file(self):
+ return False
+
+ is_dir = is_file
+
+ def joinpath(self, other):
+ if not self._reader:
+ return CompatibilityFiles.OrphanPath(other)
+ return CompatibilityFiles.ChildPath(self._reader, other)
+
+ @property
+ def name(self):
+ return self._spec.name
+
+ def open(self, mode='r', *args, **kwargs):
+ return _io_wrapper(self._reader.open_resource(None), mode, *args, **kwargs)
+
+ class ChildPath(abc.Traversable):
+ """
+ Path tied to a resource reader child.
+ Can be read but doesn't expose any meaningful children.
+ """
+
+ def __init__(self, reader, name):
+ self._reader = reader
+ self._name = name
+
+ def iterdir(self):
+ return iter(())
+
+ def is_file(self):
+ return self._reader.is_resource(self.name)
+
+ def is_dir(self):
+ return not self.is_file()
+
+ def joinpath(self, other):
+ return CompatibilityFiles.OrphanPath(self.name, other)
+
+ @property
+ def name(self):
+ return self._name
+
+ def open(self, mode='r', *args, **kwargs):
+ return _io_wrapper(
+ self._reader.open_resource(self.name), mode, *args, **kwargs
+ )
+
+ class OrphanPath(abc.Traversable):
+ """
+ Orphan path, not tied to a module spec or resource reader.
+ Can't be read and doesn't expose any meaningful children.
+ """
+
+ def __init__(self, *path_parts):
+ if len(path_parts) < 1:
+ raise ValueError('Need at least one path part to construct a path')
+ self._path = path_parts
+
+ def iterdir(self):
+ return iter(())
+
+ def is_file(self):
+ return False
+
+ is_dir = is_file
+
+ def joinpath(self, other):
+ return CompatibilityFiles.OrphanPath(*self._path, other)
+
+ @property
+ def name(self):
+ return self._path[-1]
+
+ def open(self, mode='r', *args, **kwargs):
+ raise FileNotFoundError("Can't open orphan path")
+
+ def __init__(self, spec):
+ self.spec = spec
+
+ @property
+ def _reader(self):
+ with suppress(AttributeError):
+ return self.spec.loader.get_resource_reader(self.spec.name)
+
+ def _native(self):
+ """
+ Return the native reader if it supports files().
+ """
+ reader = self._reader
+ return reader if hasattr(reader, 'files') else self
+
+ def __getattr__(self, attr):
+ return getattr(self._reader, attr)
+
+ def files(self):
+ return CompatibilityFiles.SpecPath(self.spec, self._reader)
+
+
+def wrap_spec(package):
+ """
+ Construct a package spec with traversable compatibility
+ on the spec/loader/reader.
+ """
+ return SpecLoaderAdapter(package.__spec__, TraversableResourcesLoader)
diff --git a/third_party/python/importlib_resources/importlib_resources/_common.py b/third_party/python/importlib_resources/importlib_resources/_common.py
new file mode 100644
index 0000000000..3c6de1cfb2
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources/_common.py
@@ -0,0 +1,207 @@
+import os
+import pathlib
+import tempfile
+import functools
+import contextlib
+import types
+import importlib
+import inspect
+import warnings
+import itertools
+
+from typing import Union, Optional, cast
+from .abc import ResourceReader, Traversable
+
+from ._compat import wrap_spec
+
+Package = Union[types.ModuleType, str]
+Anchor = Package
+
+
+def package_to_anchor(func):
+ """
+ Replace 'package' parameter as 'anchor' and warn about the change.
+
+ Other errors should fall through.
+
+ >>> files('a', 'b')
+ Traceback (most recent call last):
+ TypeError: files() takes from 0 to 1 positional arguments but 2 were given
+ """
+ undefined = object()
+
+ @functools.wraps(func)
+ def wrapper(anchor=undefined, package=undefined):
+ if package is not undefined:
+ if anchor is not undefined:
+ return func(anchor, package)
+ warnings.warn(
+ "First parameter to files is renamed to 'anchor'",
+ DeprecationWarning,
+ stacklevel=2,
+ )
+ return func(package)
+ elif anchor is undefined:
+ return func()
+ return func(anchor)
+
+ return wrapper
+
+
+@package_to_anchor
+def files(anchor: Optional[Anchor] = None) -> Traversable:
+ """
+ Get a Traversable resource for an anchor.
+ """
+ return from_package(resolve(anchor))
+
+
+def get_resource_reader(package: types.ModuleType) -> Optional[ResourceReader]:
+ """
+ Return the package's loader if it's a ResourceReader.
+ """
+ # We can't use
+ # a issubclass() check here because apparently abc.'s __subclasscheck__()
+ # hook wants to create a weak reference to the object, but
+ # zipimport.zipimporter does not support weak references, resulting in a
+ # TypeError. That seems terrible.
+ spec = package.__spec__
+ reader = getattr(spec.loader, 'get_resource_reader', None) # type: ignore
+ if reader is None:
+ return None
+ return reader(spec.name) # type: ignore
+
+
+@functools.singledispatch
+def resolve(cand: Optional[Anchor]) -> types.ModuleType:
+ return cast(types.ModuleType, cand)
+
+
+@resolve.register
+def _(cand: str) -> types.ModuleType:
+ return importlib.import_module(cand)
+
+
+@resolve.register
+def _(cand: None) -> types.ModuleType:
+ return resolve(_infer_caller().f_globals['__name__'])
+
+
+def _infer_caller():
+ """
+ Walk the stack and find the frame of the first caller not in this module.
+ """
+
+ def is_this_file(frame_info):
+ return frame_info.filename == __file__
+
+ def is_wrapper(frame_info):
+ return frame_info.function == 'wrapper'
+
+ not_this_file = itertools.filterfalse(is_this_file, inspect.stack())
+ # also exclude 'wrapper' due to singledispatch in the call stack
+ callers = itertools.filterfalse(is_wrapper, not_this_file)
+ return next(callers).frame
+
+
+def from_package(package: types.ModuleType):
+ """
+ Return a Traversable object for the given package.
+
+ """
+ spec = wrap_spec(package)
+ reader = spec.loader.get_resource_reader(spec.name)
+ return reader.files()
+
+
+@contextlib.contextmanager
+def _tempfile(
+ reader,
+ suffix='',
+ # gh-93353: Keep a reference to call os.remove() in late Python
+ # finalization.
+ *,
+ _os_remove=os.remove,
+):
+ # Not using tempfile.NamedTemporaryFile as it leads to deeper 'try'
+ # blocks due to the need to close the temporary file to work on Windows
+ # properly.
+ fd, raw_path = tempfile.mkstemp(suffix=suffix)
+ try:
+ try:
+ os.write(fd, reader())
+ finally:
+ os.close(fd)
+ del reader
+ yield pathlib.Path(raw_path)
+ finally:
+ try:
+ _os_remove(raw_path)
+ except FileNotFoundError:
+ pass
+
+
+def _temp_file(path):
+ return _tempfile(path.read_bytes, suffix=path.name)
+
+
+def _is_present_dir(path: Traversable) -> bool:
+ """
+ Some Traversables implement ``is_dir()`` to raise an
+ exception (i.e. ``FileNotFoundError``) when the
+ directory doesn't exist. This function wraps that call
+ to always return a boolean and only return True
+ if there's a dir and it exists.
+ """
+ with contextlib.suppress(FileNotFoundError):
+ return path.is_dir()
+ return False
+
+
+@functools.singledispatch
+def as_file(path):
+ """
+ Given a Traversable object, return that object as a
+ path on the local file system in a context manager.
+ """
+ return _temp_dir(path) if _is_present_dir(path) else _temp_file(path)
+
+
+@as_file.register(pathlib.Path)
+@contextlib.contextmanager
+def _(path):
+ """
+ Degenerate behavior for pathlib.Path objects.
+ """
+ yield path
+
+
+@contextlib.contextmanager
+def _temp_path(dir: tempfile.TemporaryDirectory):
+ """
+ Wrap tempfile.TemporyDirectory to return a pathlib object.
+ """
+ with dir as result:
+ yield pathlib.Path(result)
+
+
+@contextlib.contextmanager
+def _temp_dir(path):
+ """
+ Given a traversable dir, recursively replicate the whole tree
+ to the file system in a context manager.
+ """
+ assert path.is_dir()
+ with _temp_path(tempfile.TemporaryDirectory()) as temp_dir:
+ yield _write_contents(temp_dir, path)
+
+
+def _write_contents(target, source):
+ child = target.joinpath(source.name)
+ if source.is_dir():
+ child.mkdir()
+ for item in source.iterdir():
+ _write_contents(child, item)
+ else:
+ child.write_bytes(source.read_bytes())
+ return child
diff --git a/third_party/python/importlib_resources/importlib_resources/_compat.py b/third_party/python/importlib_resources/importlib_resources/_compat.py
new file mode 100644
index 0000000000..a93a88263b
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources/_compat.py
@@ -0,0 +1,109 @@
+# flake8: noqa
+
+import abc
+import os
+import sys
+import pathlib
+from contextlib import suppress
+from typing import Union
+
+
+if sys.version_info >= (3, 10):
+ from zipfile import Path as ZipPath # type: ignore
+else:
+ from zipp import Path as ZipPath # type: ignore
+
+
+try:
+ from typing import runtime_checkable # type: ignore
+except ImportError:
+
+ def runtime_checkable(cls): # type: ignore
+ return cls
+
+
+try:
+ from typing import Protocol # type: ignore
+except ImportError:
+ Protocol = abc.ABC # type: ignore
+
+
+class TraversableResourcesLoader:
+ """
+ Adapt loaders to provide TraversableResources and other
+ compatibility.
+
+ Used primarily for Python 3.9 and earlier where the native
+ loaders do not yet implement TraversableResources.
+ """
+
+ def __init__(self, spec):
+ self.spec = spec
+
+ @property
+ def path(self):
+ return self.spec.origin
+
+ def get_resource_reader(self, name):
+ from . import readers, _adapters
+
+ def _zip_reader(spec):
+ with suppress(AttributeError):
+ return readers.ZipReader(spec.loader, spec.name)
+
+ def _namespace_reader(spec):
+ with suppress(AttributeError, ValueError):
+ return readers.NamespaceReader(spec.submodule_search_locations)
+
+ def _available_reader(spec):
+ with suppress(AttributeError):
+ return spec.loader.get_resource_reader(spec.name)
+
+ def _native_reader(spec):
+ reader = _available_reader(spec)
+ return reader if hasattr(reader, 'files') else None
+
+ def _file_reader(spec):
+ try:
+ path = pathlib.Path(self.path)
+ except TypeError:
+ return None
+ if path.exists():
+ return readers.FileReader(self)
+
+ return (
+ # local ZipReader if a zip module
+ _zip_reader(self.spec)
+ or
+ # local NamespaceReader if a namespace module
+ _namespace_reader(self.spec)
+ or
+ # local FileReader
+ _file_reader(self.spec)
+ or
+ # native reader if it supplies 'files'
+ _native_reader(self.spec)
+ or
+ # fallback - adapt the spec ResourceReader to TraversableReader
+ _adapters.CompatibilityFiles(self.spec)
+ )
+
+
+def wrap_spec(package):
+ """
+ Construct a package spec with traversable compatibility
+ on the spec/loader/reader.
+
+ Supersedes _adapters.wrap_spec to use TraversableResourcesLoader
+ from above for older Python compatibility (<3.10).
+ """
+ from . import _adapters
+
+ return _adapters.SpecLoaderAdapter(package.__spec__, TraversableResourcesLoader)
+
+
+if sys.version_info >= (3, 9):
+ StrPath = Union[str, os.PathLike[str]]
+else:
+ # PathLike is only subscriptable at runtime in 3.9+
+ StrPath = Union[str, "os.PathLike[str]"]
diff --git a/third_party/python/importlib_resources/importlib_resources/_itertools.py b/third_party/python/importlib_resources/importlib_resources/_itertools.py
new file mode 100644
index 0000000000..7b775ef5ae
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources/_itertools.py
@@ -0,0 +1,38 @@
+# from more_itertools 9.0
+def only(iterable, default=None, too_long=None):
+ """If *iterable* has only one item, return it.
+ If it has zero items, return *default*.
+ If it has more than one item, raise the exception given by *too_long*,
+ which is ``ValueError`` by default.
+ >>> only([], default='missing')
+ 'missing'
+ >>> only([1])
+ 1
+ >>> only([1, 2]) # doctest: +IGNORE_EXCEPTION_DETAIL
+ Traceback (most recent call last):
+ ...
+ ValueError: Expected exactly one item in iterable, but got 1, 2,
+ and perhaps more.'
+ >>> only([1, 2], too_long=TypeError) # doctest: +IGNORE_EXCEPTION_DETAIL
+ Traceback (most recent call last):
+ ...
+ TypeError
+ Note that :func:`only` attempts to advance *iterable* twice to ensure there
+ is only one item. See :func:`spy` or :func:`peekable` to check
+ iterable contents less destructively.
+ """
+ it = iter(iterable)
+ first_value = next(it, default)
+
+ try:
+ second_value = next(it)
+ except StopIteration:
+ pass
+ else:
+ msg = (
+ 'Expected exactly one item in iterable, but got {!r}, {!r}, '
+ 'and perhaps more.'.format(first_value, second_value)
+ )
+ raise too_long or ValueError(msg)
+
+ return first_value
diff --git a/third_party/python/importlib_resources/importlib_resources/_legacy.py b/third_party/python/importlib_resources/importlib_resources/_legacy.py
new file mode 100644
index 0000000000..b1ea8105da
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources/_legacy.py
@@ -0,0 +1,120 @@
+import functools
+import os
+import pathlib
+import types
+import warnings
+
+from typing import Union, Iterable, ContextManager, BinaryIO, TextIO, Any
+
+from . import _common
+
+Package = Union[types.ModuleType, str]
+Resource = str
+
+
+def deprecated(func):
+ @functools.wraps(func)
+ def wrapper(*args, **kwargs):
+ warnings.warn(
+ f"{func.__name__} is deprecated. Use files() instead. "
+ "Refer to https://importlib-resources.readthedocs.io"
+ "/en/latest/using.html#migrating-from-legacy for migration advice.",
+ DeprecationWarning,
+ stacklevel=2,
+ )
+ return func(*args, **kwargs)
+
+ return wrapper
+
+
+def normalize_path(path: Any) -> str:
+ """Normalize a path by ensuring it is a string.
+
+ If the resulting string contains path separators, an exception is raised.
+ """
+ str_path = str(path)
+ parent, file_name = os.path.split(str_path)
+ if parent:
+ raise ValueError(f'{path!r} must be only a file name')
+ return file_name
+
+
+@deprecated
+def open_binary(package: Package, resource: Resource) -> BinaryIO:
+ """Return a file-like object opened for binary reading of the resource."""
+ return (_common.files(package) / normalize_path(resource)).open('rb')
+
+
+@deprecated
+def read_binary(package: Package, resource: Resource) -> bytes:
+ """Return the binary contents of the resource."""
+ return (_common.files(package) / normalize_path(resource)).read_bytes()
+
+
+@deprecated
+def open_text(
+ package: Package,
+ resource: Resource,
+ encoding: str = 'utf-8',
+ errors: str = 'strict',
+) -> TextIO:
+ """Return a file-like object opened for text reading of the resource."""
+ return (_common.files(package) / normalize_path(resource)).open(
+ 'r', encoding=encoding, errors=errors
+ )
+
+
+@deprecated
+def read_text(
+ package: Package,
+ resource: Resource,
+ encoding: str = 'utf-8',
+ errors: str = 'strict',
+) -> str:
+ """Return the decoded string of the resource.
+
+ The decoding-related arguments have the same semantics as those of
+ bytes.decode().
+ """
+ with open_text(package, resource, encoding, errors) as fp:
+ return fp.read()
+
+
+@deprecated
+def contents(package: Package) -> Iterable[str]:
+ """Return an iterable of entries in `package`.
+
+ Note that not all entries are resources. Specifically, directories are
+ not considered resources. Use `is_resource()` on each entry returned here
+ to check if it is a resource or not.
+ """
+ return [path.name for path in _common.files(package).iterdir()]
+
+
+@deprecated
+def is_resource(package: Package, name: str) -> bool:
+ """True if `name` is a resource inside `package`.
+
+ Directories are *not* resources.
+ """
+ resource = normalize_path(name)
+ return any(
+ traversable.name == resource and traversable.is_file()
+ for traversable in _common.files(package).iterdir()
+ )
+
+
+@deprecated
+def path(
+ package: Package,
+ resource: Resource,
+) -> ContextManager[pathlib.Path]:
+ """A context manager providing a file path object to the resource.
+
+ If the resource does not already exist on its own on the file system,
+ a temporary file will be created. If the file was created, the file
+ will be deleted upon exiting the context manager (no exception is
+ raised if the file was deleted prior to the context manager
+ exiting).
+ """
+ return _common.as_file(_common.files(package) / normalize_path(resource))
diff --git a/third_party/python/importlib_resources/importlib_resources/abc.py b/third_party/python/importlib_resources/importlib_resources/abc.py
new file mode 100644
index 0000000000..23b6aeafe4
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources/abc.py
@@ -0,0 +1,170 @@
+import abc
+import io
+import itertools
+import pathlib
+from typing import Any, BinaryIO, Iterable, Iterator, NoReturn, Text, Optional
+
+from ._compat import runtime_checkable, Protocol, StrPath
+
+
+__all__ = ["ResourceReader", "Traversable", "TraversableResources"]
+
+
+class ResourceReader(metaclass=abc.ABCMeta):
+ """Abstract base class for loaders to provide resource reading support."""
+
+ @abc.abstractmethod
+ def open_resource(self, resource: Text) -> BinaryIO:
+ """Return an opened, file-like object for binary reading.
+
+ The 'resource' argument is expected to represent only a file name.
+ If the resource cannot be found, FileNotFoundError is raised.
+ """
+ # This deliberately raises FileNotFoundError instead of
+ # NotImplementedError so that if this method is accidentally called,
+ # it'll still do the right thing.
+ raise FileNotFoundError
+
+ @abc.abstractmethod
+ def resource_path(self, resource: Text) -> Text:
+ """Return the file system path to the specified resource.
+
+ The 'resource' argument is expected to represent only a file name.
+ If the resource does not exist on the file system, raise
+ FileNotFoundError.
+ """
+ # This deliberately raises FileNotFoundError instead of
+ # NotImplementedError so that if this method is accidentally called,
+ # it'll still do the right thing.
+ raise FileNotFoundError
+
+ @abc.abstractmethod
+ def is_resource(self, path: Text) -> bool:
+ """Return True if the named 'path' is a resource.
+
+ Files are resources, directories are not.
+ """
+ raise FileNotFoundError
+
+ @abc.abstractmethod
+ def contents(self) -> Iterable[str]:
+ """Return an iterable of entries in `package`."""
+ raise FileNotFoundError
+
+
+class TraversalError(Exception):
+ pass
+
+
+@runtime_checkable
+class Traversable(Protocol):
+ """
+ An object with a subset of pathlib.Path methods suitable for
+ traversing directories and opening files.
+
+ Any exceptions that occur when accessing the backing resource
+ may propagate unaltered.
+ """
+
+ @abc.abstractmethod
+ def iterdir(self) -> Iterator["Traversable"]:
+ """
+ Yield Traversable objects in self
+ """
+
+ def read_bytes(self) -> bytes:
+ """
+ Read contents of self as bytes
+ """
+ with self.open('rb') as strm:
+ return strm.read()
+
+ def read_text(self, encoding: Optional[str] = None) -> str:
+ """
+ Read contents of self as text
+ """
+ with self.open(encoding=encoding) as strm:
+ return strm.read()
+
+ @abc.abstractmethod
+ def is_dir(self) -> bool:
+ """
+ Return True if self is a directory
+ """
+
+ @abc.abstractmethod
+ def is_file(self) -> bool:
+ """
+ Return True if self is a file
+ """
+
+ def joinpath(self, *descendants: StrPath) -> "Traversable":
+ """
+ Return Traversable resolved with any descendants applied.
+
+ Each descendant should be a path segment relative to self
+ and each may contain multiple levels separated by
+ ``posixpath.sep`` (``/``).
+ """
+ if not descendants:
+ return self
+ names = itertools.chain.from_iterable(
+ path.parts for path in map(pathlib.PurePosixPath, descendants)
+ )
+ target = next(names)
+ matches = (
+ traversable for traversable in self.iterdir() if traversable.name == target
+ )
+ try:
+ match = next(matches)
+ except StopIteration:
+ raise TraversalError(
+ "Target not found during traversal.", target, list(names)
+ )
+ return match.joinpath(*names)
+
+ def __truediv__(self, child: StrPath) -> "Traversable":
+ """
+ Return Traversable child in self
+ """
+ return self.joinpath(child)
+
+ @abc.abstractmethod
+ def open(self, mode='r', *args, **kwargs):
+ """
+ mode may be 'r' or 'rb' to open as text or binary. Return a handle
+ suitable for reading (same as pathlib.Path.open).
+
+ When opening as text, accepts encoding parameters such as those
+ accepted by io.TextIOWrapper.
+ """
+
+ @property
+ @abc.abstractmethod
+ def name(self) -> str:
+ """
+ The base name of this object without any parent references.
+ """
+
+
+class TraversableResources(ResourceReader):
+ """
+ The required interface for providing traversable
+ resources.
+ """
+
+ @abc.abstractmethod
+ def files(self) -> "Traversable":
+ """Return a Traversable object for the loaded package."""
+
+ def open_resource(self, resource: StrPath) -> io.BufferedReader:
+ return self.files().joinpath(resource).open('rb')
+
+ def resource_path(self, resource: Any) -> NoReturn:
+ raise FileNotFoundError(resource)
+
+ def is_resource(self, path: StrPath) -> bool:
+ return self.files().joinpath(path).is_file()
+
+ def contents(self) -> Iterator[str]:
+ return (item.name for item in self.files().iterdir())
diff --git a/third_party/python/importlib_resources/importlib_resources/py.typed b/third_party/python/importlib_resources/importlib_resources/py.typed
new file mode 100644
index 0000000000..e69de29bb2
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources/py.typed
diff --git a/third_party/python/importlib_resources/importlib_resources/readers.py b/third_party/python/importlib_resources/importlib_resources/readers.py
new file mode 100644
index 0000000000..51d030a654
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources/readers.py
@@ -0,0 +1,144 @@
+import collections
+import itertools
+import pathlib
+import operator
+
+from . import abc
+
+from ._itertools import only
+from ._compat import ZipPath
+
+
+def remove_duplicates(items):
+ return iter(collections.OrderedDict.fromkeys(items))
+
+
+class FileReader(abc.TraversableResources):
+ def __init__(self, loader):
+ self.path = pathlib.Path(loader.path).parent
+
+ def resource_path(self, resource):
+ """
+ Return the file system path to prevent
+ `resources.path()` from creating a temporary
+ copy.
+ """
+ return str(self.path.joinpath(resource))
+
+ def files(self):
+ return self.path
+
+
+class ZipReader(abc.TraversableResources):
+ def __init__(self, loader, module):
+ _, _, name = module.rpartition('.')
+ self.prefix = loader.prefix.replace('\\', '/') + name + '/'
+ self.archive = loader.archive
+
+ def open_resource(self, resource):
+ try:
+ return super().open_resource(resource)
+ except KeyError as exc:
+ raise FileNotFoundError(exc.args[0])
+
+ def is_resource(self, path):
+ """
+ Workaround for `zipfile.Path.is_file` returning true
+ for non-existent paths.
+ """
+ target = self.files().joinpath(path)
+ return target.is_file() and target.exists()
+
+ def files(self):
+ return ZipPath(self.archive, self.prefix)
+
+
+class MultiplexedPath(abc.Traversable):
+ """
+ Given a series of Traversable objects, implement a merged
+ version of the interface across all objects. Useful for
+ namespace packages which may be multihomed at a single
+ name.
+ """
+
+ def __init__(self, *paths):
+ self._paths = list(map(pathlib.Path, remove_duplicates(paths)))
+ if not self._paths:
+ message = 'MultiplexedPath must contain at least one path'
+ raise FileNotFoundError(message)
+ if not all(path.is_dir() for path in self._paths):
+ raise NotADirectoryError('MultiplexedPath only supports directories')
+
+ def iterdir(self):
+ children = (child for path in self._paths for child in path.iterdir())
+ by_name = operator.attrgetter('name')
+ groups = itertools.groupby(sorted(children, key=by_name), key=by_name)
+ return map(self._follow, (locs for name, locs in groups))
+
+ def read_bytes(self):
+ raise FileNotFoundError(f'{self} is not a file')
+
+ def read_text(self, *args, **kwargs):
+ raise FileNotFoundError(f'{self} is not a file')
+
+ def is_dir(self):
+ return True
+
+ def is_file(self):
+ return False
+
+ def joinpath(self, *descendants):
+ try:
+ return super().joinpath(*descendants)
+ except abc.TraversalError:
+ # One of the paths did not resolve (a directory does not exist).
+ # Just return something that will not exist.
+ return self._paths[0].joinpath(*descendants)
+
+ @classmethod
+ def _follow(cls, children):
+ """
+ Construct a MultiplexedPath if needed.
+
+ If children contains a sole element, return it.
+ Otherwise, return a MultiplexedPath of the items.
+ Unless one of the items is not a Directory, then return the first.
+ """
+ subdirs, one_dir, one_file = itertools.tee(children, 3)
+
+ try:
+ return only(one_dir)
+ except ValueError:
+ try:
+ return cls(*subdirs)
+ except NotADirectoryError:
+ return next(one_file)
+
+ def open(self, *args, **kwargs):
+ raise FileNotFoundError(f'{self} is not a file')
+
+ @property
+ def name(self):
+ return self._paths[0].name
+
+ def __repr__(self):
+ paths = ', '.join(f"'{path}'" for path in self._paths)
+ return f'MultiplexedPath({paths})'
+
+
+class NamespaceReader(abc.TraversableResources):
+ def __init__(self, namespace_path):
+ if 'NamespacePath' not in str(namespace_path):
+ raise ValueError('Invalid path')
+ self.path = MultiplexedPath(*list(namespace_path))
+
+ def resource_path(self, resource):
+ """
+ Return the file system path to prevent
+ `resources.path()` from creating a temporary
+ copy.
+ """
+ return str(self.path.joinpath(resource))
+
+ def files(self):
+ return self.path
diff --git a/third_party/python/importlib_resources/importlib_resources/simple.py b/third_party/python/importlib_resources/importlib_resources/simple.py
new file mode 100644
index 0000000000..7770c922c8
--- /dev/null
+++ b/third_party/python/importlib_resources/importlib_resources/simple.py
@@ -0,0 +1,106 @@
+"""
+Interface adapters for low-level readers.
+"""
+
+import abc
+import io
+import itertools
+from typing import BinaryIO, List
+
+from .abc import Traversable, TraversableResources
+
+
+class SimpleReader(abc.ABC):
+ """
+ The minimum, low-level interface required from a resource
+ provider.
+ """
+
+ @property
+ @abc.abstractmethod
+ def package(self) -> str:
+ """
+ The name of the package for which this reader loads resources.
+ """
+
+ @abc.abstractmethod
+ def children(self) -> List['SimpleReader']:
+ """
+ Obtain an iterable of SimpleReader for available
+ child containers (e.g. directories).
+ """
+
+ @abc.abstractmethod
+ def resources(self) -> List[str]:
+ """
+ Obtain available named resources for this virtual package.
+ """
+
+ @abc.abstractmethod
+ def open_binary(self, resource: str) -> BinaryIO:
+ """
+ Obtain a File-like for a named resource.
+ """
+
+ @property
+ def name(self):
+ return self.package.split('.')[-1]
+
+
+class ResourceContainer(Traversable):
+ """
+ Traversable container for a package's resources via its reader.
+ """
+
+ def __init__(self, reader: SimpleReader):
+ self.reader = reader
+
+ def is_dir(self):
+ return True
+
+ def is_file(self):
+ return False
+
+ def iterdir(self):
+ files = (ResourceHandle(self, name) for name in self.reader.resources)
+ dirs = map(ResourceContainer, self.reader.children())
+ return itertools.chain(files, dirs)
+
+ def open(self, *args, **kwargs):
+ raise IsADirectoryError()
+
+
+class ResourceHandle(Traversable):
+ """
+ Handle to a named resource in a ResourceReader.
+ """
+
+ def __init__(self, parent: ResourceContainer, name: str):
+ self.parent = parent
+ self.name = name # type: ignore
+
+ def is_file(self):
+ return True
+
+ def is_dir(self):
+ return False
+
+ def open(self, mode='r', *args, **kwargs):
+ stream = self.parent.reader.open_binary(self.name)
+ if 'b' not in mode:
+ stream = io.TextIOWrapper(*args, **kwargs)
+ return stream
+
+ def joinpath(self, name):
+ raise RuntimeError("Cannot traverse into a resource")
+
+
+class TraversableReader(TraversableResources, SimpleReader):
+ """
+ A TraversableResources based on SimpleReader. Resource providers
+ may derive from this class to provide the TraversableResources
+ interface by supplying the SimpleReader interface.
+ """
+
+ def files(self):
+ return ResourceContainer(self)