Add files using upload-large-folder tool

lib/python3.11/site-packages/_distutils_hack/__init__.py

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+# don't import any costly modules
+import os
+import sys
+
+report_url = (
+    "https://github.com/pypa/setuptools/issues/new?template=distutils-deprecation.yml"
+)
+
+
+def warn_distutils_present():
+    if 'distutils' not in sys.modules:
+        return
+    import warnings
+
+    warnings.warn(
+        "Distutils was imported before Setuptools, but importing Setuptools "
+        "also replaces the `distutils` module in `sys.modules`. This may lead "
+        "to undesirable behaviors or errors. To avoid these issues, avoid "
+        "using distutils directly, ensure that setuptools is installed in the "
+        "traditional way (e.g. not an editable install), and/or make sure "
+        "that setuptools is always imported before distutils."
+    )
+
+
+def clear_distutils():
+    if 'distutils' not in sys.modules:
+        return
+    import warnings
+
+    warnings.warn(
+        "Setuptools is replacing distutils. Support for replacing "
+        "an already imported distutils is deprecated. In the future, "
+        "this condition will fail. "
+        f"Register concerns at {report_url}"
+    )
+    mods = [
+        name
+        for name in sys.modules
+        if name == "distutils" or name.startswith("distutils.")
+    ]
+    for name in mods:
+        del sys.modules[name]
+
+
+def enabled():
+    """
+    Allow selection of distutils by environment variable.
+    """
+    which = os.environ.get('SETUPTOOLS_USE_DISTUTILS', 'local')
+    if which == 'stdlib':
+        import warnings
+
+        warnings.warn(
+            "Reliance on distutils from stdlib is deprecated. Users "
+            "must rely on setuptools to provide the distutils module. "
+            "Avoid importing distutils or import setuptools first, "
+            "and avoid setting SETUPTOOLS_USE_DISTUTILS=stdlib. "
+            f"Register concerns at {report_url}"
+        )
+    return which == 'local'
+
+
+def ensure_local_distutils():
+    import importlib
+
+    clear_distutils()
+
+    # With the DistutilsMetaFinder in place,
+    # perform an import to cause distutils to be
+    # loaded from setuptools._distutils. Ref #2906.
+    with shim():
+        importlib.import_module('distutils')
+
+    # check that submodules load as expected
+    core = importlib.import_module('distutils.core')
+    assert '_distutils' in core.__file__, core.__file__
+    assert 'setuptools._distutils.log' not in sys.modules
+
+
+def do_override():
+    """
+    Ensure that the local copy of distutils is preferred over stdlib.
+
+    See https://github.com/pypa/setuptools/issues/417#issuecomment-392298401
+    for more motivation.
+    """
+    if enabled():
+        warn_distutils_present()
+        ensure_local_distutils()
+
+
+class _TrivialRe:
+    def __init__(self, *patterns) -> None:
+        self._patterns = patterns
+
+    def match(self, string):
+        return all(pat in string for pat in self._patterns)
+
+
+class DistutilsMetaFinder:
+    def find_spec(self, fullname, path, target=None):
+        # optimization: only consider top level modules and those
+        # found in the CPython test suite.
+        if path is not None and not fullname.startswith('test.'):
+            return None
+
+        method_name = 'spec_for_{fullname}'.format(**locals())
+        method = getattr(self, method_name, lambda: None)
+        return method()
+
+    def spec_for_distutils(self):
+        if self.is_cpython():
+            return None
+
+        import importlib
+        import importlib.abc
+        import importlib.util
+
+        try:
+            mod = importlib.import_module('setuptools._distutils')
+        except Exception:
+            # There are a couple of cases where setuptools._distutils
+            # may not be present:
+            # - An older Setuptools without a local distutils is
+            #   taking precedence. Ref #2957.
+            # - Path manipulation during sitecustomize removes
+            #   setuptools from the path but only after the hook
+            #   has been loaded. Ref #2980.
+            # In either case, fall back to stdlib behavior.
+            return None
+
+        class DistutilsLoader(importlib.abc.Loader):
+            def create_module(self, spec):
+                mod.__name__ = 'distutils'
+                return mod
+
+            def exec_module(self, module):
+                pass
+
+        return importlib.util.spec_from_loader(
+            'distutils', DistutilsLoader(), origin=mod.__file__
+        )
+
+    @staticmethod
+    def is_cpython():
+        """
+        Suppress supplying distutils for CPython (build and tests).
+        Ref #2965 and #3007.
+        """
+        return os.path.isfile('pybuilddir.txt')
+
+    def spec_for_pip(self):
+        """
+        Ensure stdlib distutils when running under pip.
+        See pypa/pip#8761 for rationale.
+        """
+        if sys.version_info >= (3, 12) or self.pip_imported_during_build():
+            return
+        clear_distutils()
+        self.spec_for_distutils = lambda: None
+
+    @classmethod
+    def pip_imported_during_build(cls):
+        """
+        Detect if pip is being imported in a build script. Ref #2355.
+        """
+        import traceback
+
+        return any(
+            cls.frame_file_is_setup(frame) for frame, line in traceback.walk_stack(None)
+        )
+
+    @staticmethod
+    def frame_file_is_setup(frame):
+        """
+        Return True if the indicated frame suggests a setup.py file.
+        """
+        # some frames may not have __file__ (#2940)
+        return frame.f_globals.get('__file__', '').endswith('setup.py')
+
+    def spec_for_sensitive_tests(self):
+        """
+        Ensure stdlib distutils when running select tests under CPython.
+
+        python/cpython#91169
+        """
+        clear_distutils()
+        self.spec_for_distutils = lambda: None
+
+    sensitive_tests = (
+        [
+            'test.test_distutils',
+            'test.test_peg_generator',
+            'test.test_importlib',
+        ]
+        if sys.version_info < (3, 10)
+        else [
+            'test.test_distutils',
+        ]
+    )
+
+
+for name in DistutilsMetaFinder.sensitive_tests:
+    setattr(
+        DistutilsMetaFinder,
+        f'spec_for_{name}',
+        DistutilsMetaFinder.spec_for_sensitive_tests,
+    )
+
+
+DISTUTILS_FINDER = DistutilsMetaFinder()
+
+
+def add_shim():
+    DISTUTILS_FINDER in sys.meta_path or insert_shim()
+
+
+class shim:
+    def __enter__(self) -> None:
+        insert_shim()
+
+    def __exit__(self, exc: object, value: object, tb: object) -> None:
+        _remove_shim()
+
+
+def insert_shim():
+    sys.meta_path.insert(0, DISTUTILS_FINDER)
+
+
+def _remove_shim():
+    try:
+        sys.meta_path.remove(DISTUTILS_FINDER)
+    except ValueError:
+        pass
+
+
+if sys.version_info < (3, 12):
+    # DistutilsMetaFinder can only be disabled in Python < 3.12 (PEP 632)
+    remove_shim = _remove_shim

lib/python3.11/site-packages/_distutils_hack/override.py

@@ -0,0 +1 @@
+__import__('_distutils_hack').do_override()

lib/python3.11/site-packages/pkg_resources/api_tests.txt

@@ -0,0 +1,424 @@
+Pluggable Distributions of Python Software
+==========================================
+
+Distributions
+-------------
+
+A "Distribution" is a collection of files that represent a "Release" of a
+"Project" as of a particular point in time, denoted by a
+"Version"::
+
+    >>> import sys, pkg_resources
+    >>> from pkg_resources import Distribution
+    >>> Distribution(project_name="Foo", version="1.2")
+    Foo 1.2
+
+Distributions have a location, which can be a filename, URL, or really anything
+else you care to use::
+
+    >>> dist = Distribution(
+    ...     location="http://example.com/something",
+    ...     project_name="Bar", version="0.9"
+    ... )
+
+    >>> dist
+    Bar 0.9 (http://example.com/something)
+
+
+Distributions have various introspectable attributes::
+
+    >>> dist.location
+    'http://example.com/something'
+
+    >>> dist.project_name
+    'Bar'
+
+    >>> dist.version
+    '0.9'
+
+    >>> dist.py_version == '{}.{}'.format(*sys.version_info)
+    True
+
+    >>> print(dist.platform)
+    None
+
+Including various computed attributes::
+
+    >>> from pkg_resources import parse_version
+    >>> dist.parsed_version == parse_version(dist.version)
+    True
+
+    >>> dist.key    # case-insensitive form of the project name
+    'bar'
+
+Distributions are compared (and hashed) by version first::
+
+    >>> Distribution(version='1.0') == Distribution(version='1.0')
+    True
+    >>> Distribution(version='1.0') == Distribution(version='1.1')
+    False
+    >>> Distribution(version='1.0') <  Distribution(version='1.1')
+    True
+
+but also by project name (case-insensitive), platform, Python version,
+location, etc.::
+
+    >>> Distribution(project_name="Foo",version="1.0") == \
+    ... Distribution(project_name="Foo",version="1.0")
+    True
+
+    >>> Distribution(project_name="Foo",version="1.0") == \
+    ... Distribution(project_name="foo",version="1.0")
+    True
+
+    >>> Distribution(project_name="Foo",version="1.0") == \
+    ... Distribution(project_name="Foo",version="1.1")
+    False
+
+    >>> Distribution(project_name="Foo",py_version="2.3",version="1.0") == \
+    ... Distribution(project_name="Foo",py_version="2.4",version="1.0")
+    False
+
+    >>> Distribution(location="spam",version="1.0") == \
+    ... Distribution(location="spam",version="1.0")
+    True
+
+    >>> Distribution(location="spam",version="1.0") == \
+    ... Distribution(location="baz",version="1.0")
+    False
+
+
+
+Hash and compare distribution by prio/plat
+
+Get version from metadata
+provider capabilities
+egg_name()
+as_requirement()
+from_location, from_filename (w/path normalization)
+
+Releases may have zero or more "Requirements", which indicate
+what releases of another project the release requires in order to
+function.  A Requirement names the other project, expresses some criteria
+as to what releases of that project are acceptable, and lists any "Extras"
+that the requiring release may need from that project.  (An Extra is an
+optional feature of a Release, that can only be used if its additional
+Requirements are satisfied.)
+
+
+
+The Working Set
+---------------
+
+A collection of active distributions is called a Working Set.  Note that a
+Working Set can contain any importable distribution, not just pluggable ones.
+For example, the Python standard library is an importable distribution that
+will usually be part of the Working Set, even though it is not pluggable.
+Similarly, when you are doing development work on a project, the files you are
+editing are also a Distribution.  (And, with a little attention to the
+directory names used,  and including some additional metadata, such a
+"development distribution" can be made pluggable as well.)
+
+    >>> from pkg_resources import WorkingSet
+
+A working set's entries are the sys.path entries that correspond to the active
+distributions.  By default, the working set's entries are the items on
+``sys.path``::
+
+    >>> ws = WorkingSet()
+    >>> ws.entries == sys.path
+    True
+
+But you can also create an empty working set explicitly, and add distributions
+to it::
+
+    >>> ws = WorkingSet([])
+    >>> ws.add(dist)
+    >>> ws.entries
+    ['http://example.com/something']
+    >>> dist in ws
+    True
+    >>> Distribution('foo',version="") in ws
+    False
+
+And you can iterate over its distributions::
+
+    >>> list(ws)
+    [Bar 0.9 (http://example.com/something)]
+
+Adding the same distribution more than once is a no-op::
+
+    >>> ws.add(dist)
+    >>> list(ws)
+    [Bar 0.9 (http://example.com/something)]
+
+For that matter, adding multiple distributions for the same project also does
+nothing, because a working set can only hold one active distribution per
+project -- the first one added to it::
+
+    >>> ws.add(
+    ...     Distribution(
+    ...         'http://example.com/something', project_name="Bar",
+    ...         version="7.2"
+    ...     )
+    ... )
+    >>> list(ws)
+    [Bar 0.9 (http://example.com/something)]
+
+You can append a path entry to a working set using ``add_entry()``::
+
+    >>> ws.entries
+    ['http://example.com/something']
+    >>> ws.add_entry(pkg_resources.__file__)
+    >>> ws.entries
+    ['http://example.com/something', '...pkg_resources...']
+
+Multiple additions result in multiple entries, even if the entry is already in
+the working set (because ``sys.path`` can contain the same entry more than
+once)::
+
+    >>> ws.add_entry(pkg_resources.__file__)
+    >>> ws.entries
+    ['...example.com...', '...pkg_resources...', '...pkg_resources...']
+
+And you can specify the path entry a distribution was found under, using the
+optional second parameter to ``add()``::
+
+    >>> ws = WorkingSet([])
+    >>> ws.add(dist,"foo")
+    >>> ws.entries
+    ['foo']
+
+But even if a distribution is found under multiple path entries, it still only
+shows up once when iterating the working set:
+
+    >>> ws.add_entry(ws.entries[0])
+    >>> list(ws)
+    [Bar 0.9 (http://example.com/something)]
+
+You can ask a WorkingSet to ``find()`` a distribution matching a requirement::
+
+    >>> from pkg_resources import Requirement
+    >>> print(ws.find(Requirement.parse("Foo==1.0")))   # no match, return None
+    None
+
+    >>> ws.find(Requirement.parse("Bar==0.9"))  # match, return distribution
+    Bar 0.9 (http://example.com/something)
+
+Note that asking for a conflicting version of a distribution already in a
+working set triggers a ``pkg_resources.VersionConflict`` error:
+
+    >>> try:
+    ...     ws.find(Requirement.parse("Bar==1.0"))
+    ... except pkg_resources.VersionConflict as exc:
+    ...     print(str(exc))
+    ... else:
+    ...     raise AssertionError("VersionConflict was not raised")
+    (Bar 0.9 (http://example.com/something), Requirement.parse('Bar==1.0'))
+
+You can subscribe a callback function to receive notifications whenever a new
+distribution is added to a working set.  The callback is immediately invoked
+once for each existing distribution in the working set, and then is called
+again for new distributions added thereafter::
+
+    >>> def added(dist): print("Added %s" % dist)
+    >>> ws.subscribe(added)
+    Added Bar 0.9
+    >>> foo12 = Distribution(project_name="Foo", version="1.2", location="f12")
+    >>> ws.add(foo12)
+    Added Foo 1.2
+
+Note, however, that only the first distribution added for a given project name
+will trigger a callback, even during the initial ``subscribe()`` callback::
+
+    >>> foo14 = Distribution(project_name="Foo", version="1.4", location="f14")
+    >>> ws.add(foo14)   # no callback, because Foo 1.2 is already active
+
+    >>> ws = WorkingSet([])
+    >>> ws.add(foo12)
+    >>> ws.add(foo14)
+    >>> ws.subscribe(added)
+    Added Foo 1.2
+
+And adding a callback more than once has no effect, either::
+
+    >>> ws.subscribe(added)     # no callbacks
+
+    # and no double-callbacks on subsequent additions, either
+    >>> just_a_test = Distribution(project_name="JustATest", version="0.99")
+    >>> ws.add(just_a_test)
+    Added JustATest 0.99
+
+
+Finding Plugins
+---------------
+
+``WorkingSet`` objects can be used to figure out what plugins in an
+``Environment`` can be loaded without any resolution errors::
+
+    >>> from pkg_resources import Environment
+
+    >>> plugins = Environment([])   # normally, a list of plugin directories
+    >>> plugins.add(foo12)
+    >>> plugins.add(foo14)
+    >>> plugins.add(just_a_test)
+
+In the simplest case, we just get the newest version of each distribution in
+the plugin environment::
+
+    >>> ws = WorkingSet([])
+    >>> ws.find_plugins(plugins)
+    ([JustATest 0.99, Foo 1.4 (f14)], {})
+
+But if there's a problem with a version conflict or missing requirements, the
+method falls back to older versions, and the error info dict will contain an
+exception instance for each unloadable plugin::
+
+    >>> ws.add(foo12)   # this will conflict with Foo 1.4
+    >>> ws.find_plugins(plugins)
+    ([JustATest 0.99, Foo 1.2 (f12)], {Foo 1.4 (f14): VersionConflict(...)})
+
+But if you disallow fallbacks, the failed plugin will be skipped instead of
+trying older versions::
+
+    >>> ws.find_plugins(plugins, fallback=False)
+    ([JustATest 0.99], {Foo 1.4 (f14): VersionConflict(...)})
+
+
+
+Platform Compatibility Rules
+----------------------------
+
+On the Mac, there are potential compatibility issues for modules compiled
+on newer versions of macOS than what the user is running. Additionally,
+macOS will soon have two platforms to contend with: Intel and PowerPC.
+
+Basic equality works as on other platforms::
+
+    >>> from pkg_resources import compatible_platforms as cp
+    >>> reqd = 'macosx-10.4-ppc'
+    >>> cp(reqd, reqd)
+    True
+    >>> cp("win32", reqd)
+    False
+
+Distributions made on other machine types are not compatible::
+
+    >>> cp("macosx-10.4-i386", reqd)
+    False
+
+Distributions made on earlier versions of the OS are compatible, as
+long as they are from the same top-level version. The patchlevel version
+number does not matter::
+
+    >>> cp("macosx-10.4-ppc", reqd)
+    True
+    >>> cp("macosx-10.3-ppc", reqd)
+    True
+    >>> cp("macosx-10.5-ppc", reqd)
+    False
+    >>> cp("macosx-9.5-ppc", reqd)
+    False
+
+Backwards compatibility for packages made via earlier versions of
+setuptools is provided as well::
+
+    >>> cp("darwin-8.2.0-Power_Macintosh", reqd)
+    True
+    >>> cp("darwin-7.2.0-Power_Macintosh", reqd)
+    True
+    >>> cp("darwin-8.2.0-Power_Macintosh", "macosx-10.3-ppc")
+    False
+
+
+Environment Markers
+-------------------
+
+    >>> from pkg_resources import invalid_marker as im, evaluate_marker as em
+    >>> import os
+
+    >>> print(im("sys_platform"))
+    Expected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not in
+        sys_platform
+                    ^
+
+    >>> print(im("sys_platform=="))
+    Expected a marker variable or quoted string
+        sys_platform==
+                      ^
+
+    >>> print(im("sys_platform=='win32'"))
+    False
+
+    >>> print(im("sys=='x'"))
+    Expected a marker variable or quoted string
+        sys=='x'
+        ^
+
+    >>> print(im("(extra)"))
+    Expected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not in
+        (extra)
+              ^
+
+    >>> print(im("(extra"))
+    Expected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not in
+        (extra
+              ^
+
+    >>> print(im("os.open('foo')=='y'"))
+    Expected a marker variable or quoted string
+        os.open('foo')=='y'
+        ^
+
+    >>> print(im("'x'=='y' and os.open('foo')=='y'"))   # no short-circuit!
+    Expected a marker variable or quoted string
+        'x'=='y' and os.open('foo')=='y'
+                     ^
+
+    >>> print(im("'x'=='x' or os.open('foo')=='y'"))   # no short-circuit!
+    Expected a marker variable or quoted string
+        'x'=='x' or os.open('foo')=='y'
+                    ^
+
+    >>> print(im("r'x'=='x'"))
+    Expected a marker variable or quoted string
+        r'x'=='x'
+        ^
+
+    >>> print(im("'''x'''=='x'"))
+    Expected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not in
+        '''x'''=='x'
+          ^
+
+    >>> print(im('"""x"""=="x"'))
+    Expected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not in
+        """x"""=="x"
+          ^
+
+    >>> print(im(r"x\n=='x'"))
+    Expected a marker variable or quoted string
+        x\n=='x'
+        ^
+
+    >>> print(im("os.open=='y'"))
+    Expected a marker variable or quoted string
+        os.open=='y'
+        ^
+
+    >>> em("sys_platform=='win32'") == (sys.platform=='win32')
+    True
+
+    >>> em("python_version >= '2.7'")
+    True
+
+    >>> em("python_version > '2.6'")
+    True
+
+    >>> im("implementation_name=='cpython'")
+    False
+
+    >>> im("platform_python_implementation=='CPython'")
+    False
+
+    >>> im("implementation_version=='3.5.1'")
+    False

lib/python3.11/site-packages/pkg_resources/tests/data/my-test-package-source/setup.py

@@ -0,0 +1,7 @@
+import setuptools
+
+setuptools.setup(
+    name="my-test-package",
+    version="1.0",
+    zip_safe=True,
+)

lib/python3.11/site-packages/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/PKG-INFO

@@ -0,0 +1,10 @@
+Metadata-Version: 1.0
+Name: my-test-package
+Version: 1.0
+Summary: UNKNOWN
+Home-page: UNKNOWN
+Author: UNKNOWN
+Author-email: UNKNOWN
+License: UNKNOWN
+Description: UNKNOWN
+Platform: UNKNOWN

lib/python3.11/site-packages/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/SOURCES.txt

@@ -0,0 +1,7 @@
+setup.cfg
+setup.py
+my_test_package.egg-info/PKG-INFO
+my_test_package.egg-info/SOURCES.txt
+my_test_package.egg-info/dependency_links.txt
+my_test_package.egg-info/top_level.txt
+my_test_package.egg-info/zip-safe

lib/python3.11/site-packages/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/dependency_links.txt

@@ -0,0 +1 @@
+

lib/python3.11/site-packages/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/top_level.txt

@@ -0,0 +1 @@
+

lib/python3.11/site-packages/pkg_resources/tests/data/my-test-package_unpacked-egg/my_test_package-1.0-py3.7.egg/EGG-INFO/zip-safe

@@ -0,0 +1 @@
+

lib/python3.11/site-packages/pkg_resources/tests/test_find_distributions.py

@@ -0,0 +1,56 @@
+import shutil
+from pathlib import Path
+
+import pytest
+
+import pkg_resources
+
+TESTS_DATA_DIR = Path(__file__).parent / 'data'
+
+
+class TestFindDistributions:
+    @pytest.fixture
+    def target_dir(self, tmpdir):
+        target_dir = tmpdir.mkdir('target')
+        # place a .egg named directory in the target that is not an egg:
+        target_dir.mkdir('not.an.egg')
+        return target_dir
+
+    def test_non_egg_dir_named_egg(self, target_dir):
+        dists = pkg_resources.find_distributions(str(target_dir))
+        assert not list(dists)
+
+    def test_standalone_egg_directory(self, target_dir):
+        shutil.copytree(
+            TESTS_DATA_DIR / 'my-test-package_unpacked-egg',
+            target_dir,
+            dirs_exist_ok=True,
+        )
+        dists = pkg_resources.find_distributions(str(target_dir))
+        assert [dist.project_name for dist in dists] == ['my-test-package']
+        dists = pkg_resources.find_distributions(str(target_dir), only=True)
+        assert not list(dists)
+
+    def test_zipped_egg(self, target_dir):
+        shutil.copytree(
+            TESTS_DATA_DIR / 'my-test-package_zipped-egg',
+            target_dir,
+            dirs_exist_ok=True,
+        )
+        dists = pkg_resources.find_distributions(str(target_dir))
+        assert [dist.project_name for dist in dists] == ['my-test-package']
+        dists = pkg_resources.find_distributions(str(target_dir), only=True)
+        assert not list(dists)
+
+    def test_zipped_sdist_one_level_removed(self, target_dir):
+        shutil.copytree(
+            TESTS_DATA_DIR / 'my-test-package-zip', target_dir, dirs_exist_ok=True
+        )
+        dists = pkg_resources.find_distributions(
+            str(target_dir / "my-test-package.zip")
+        )
+        assert [dist.project_name for dist in dists] == ['my-test-package']
+        dists = pkg_resources.find_distributions(
+            str(target_dir / "my-test-package.zip"), only=True
+        )
+        assert not list(dists)

lib/python3.11/site-packages/pkg_resources/tests/test_integration_zope_interface.py

@@ -0,0 +1,54 @@
+import platform
+from inspect import cleandoc
+
+import jaraco.path
+import pytest
+
+pytestmark = pytest.mark.integration
+
+
+# For the sake of simplicity this test uses fixtures defined in
+# `setuptools.test.fixtures`,
+# and it also exercise conditions considered deprecated...
+# So if needed this test can be deleted.
+@pytest.mark.skipif(
+    platform.system() != "Linux",
+    reason="only demonstrated to fail on Linux in #4399",
+)
+def test_interop_pkg_resources_iter_entry_points(tmp_path, venv):
+    """
+    Importing pkg_resources.iter_entry_points on console_scripts
+    seems to cause trouble with zope-interface, when deprecates installation method
+    is used. See #4399.
+    """
+    project = {
+        "pkg": {
+            "foo.py": cleandoc(
+                """
+                from pkg_resources import iter_entry_points
+
+                def bar():
+                    print("Print me if you can")
+                """
+            ),
+            "setup.py": cleandoc(
+                """
+                from setuptools import setup, find_packages
+
+                setup(
+                    install_requires=["zope-interface==6.4.post2"],
+                    entry_points={
+                        "console_scripts": [
+                            "foo=foo:bar",
+                        ],
+                    },
+                )
+                """
+            ),
+        }
+    }
+    jaraco.path.build(project, prefix=tmp_path)
+    cmd = ["pip", "install", "-e", ".", "--no-use-pep517"]
+    venv.run(cmd, cwd=tmp_path / "pkg")  # Needs this version of pkg_resources installed
+    out = venv.run(["foo"])
+    assert "Print me if you can" in out

lib/python3.11/site-packages/pkg_resources/tests/test_markers.py

@@ -0,0 +1,8 @@
+from unittest import mock
+
+from pkg_resources import evaluate_marker
+
+
+@mock.patch('platform.python_version', return_value='2.7.10')
+def test_ordering(python_version_mock):
+    assert evaluate_marker("python_full_version > '2.7.3'") is True

lib/python3.11/site-packages/pkg_resources/tests/test_pkg_resources.py

@@ -0,0 +1,485 @@
+from __future__ import annotations
+
+import builtins
+import datetime
+import inspect
+import os
+import plistlib
+import stat
+import subprocess
+import sys
+import tempfile
+import zipfile
+from unittest import mock
+
+import pytest
+
+import pkg_resources
+from pkg_resources import DistInfoDistribution, Distribution, EggInfoDistribution
+
+import distutils.command.install_egg_info
+import distutils.dist
+
+
+class EggRemover(str):
+    def __call__(self):
+        if self in sys.path:
+            sys.path.remove(self)
+        if os.path.exists(self):
+            os.remove(self)
+
+
+class TestZipProvider:
+    finalizers: list[EggRemover] = []
+
+    ref_time = datetime.datetime(2013, 5, 12, 13, 25, 0)
+    "A reference time for a file modification"
+
+    @classmethod
+    def setup_class(cls):
+        "create a zip egg and add it to sys.path"
+        egg = tempfile.NamedTemporaryFile(suffix='.egg', delete=False)
+        zip_egg = zipfile.ZipFile(egg, 'w')
+        zip_info = zipfile.ZipInfo()
+        zip_info.filename = 'mod.py'
+        zip_info.date_time = cls.ref_time.timetuple()
+        zip_egg.writestr(zip_info, 'x = 3\n')
+        zip_info = zipfile.ZipInfo()
+        zip_info.filename = 'data.dat'
+        zip_info.date_time = cls.ref_time.timetuple()
+        zip_egg.writestr(zip_info, 'hello, world!')
+        zip_info = zipfile.ZipInfo()
+        zip_info.filename = 'subdir/mod2.py'
+        zip_info.date_time = cls.ref_time.timetuple()
+        zip_egg.writestr(zip_info, 'x = 6\n')
+        zip_info = zipfile.ZipInfo()
+        zip_info.filename = 'subdir/data2.dat'
+        zip_info.date_time = cls.ref_time.timetuple()
+        zip_egg.writestr(zip_info, 'goodbye, world!')
+        zip_egg.close()
+        egg.close()
+
+        sys.path.append(egg.name)
+        subdir = os.path.join(egg.name, 'subdir')
+        sys.path.append(subdir)
+        cls.finalizers.append(EggRemover(subdir))
+        cls.finalizers.append(EggRemover(egg.name))
+
+    @classmethod
+    def teardown_class(cls):
+        for finalizer in cls.finalizers:
+            finalizer()
+
+    def test_resource_listdir(self):
+        import mod  # pyright: ignore[reportMissingImports] # Temporary package for test
+
+        zp = pkg_resources.ZipProvider(mod)
+
+        expected_root = ['data.dat', 'mod.py', 'subdir']
+        assert sorted(zp.resource_listdir('')) == expected_root
+
+        expected_subdir = ['data2.dat', 'mod2.py']
+        assert sorted(zp.resource_listdir('subdir')) == expected_subdir
+        assert sorted(zp.resource_listdir('subdir/')) == expected_subdir
+
+        assert zp.resource_listdir('nonexistent') == []
+        assert zp.resource_listdir('nonexistent/') == []
+
+        import mod2  # pyright: ignore[reportMissingImports] # Temporary package for test
+
+        zp2 = pkg_resources.ZipProvider(mod2)
+
+        assert sorted(zp2.resource_listdir('')) == expected_subdir
+
+        assert zp2.resource_listdir('subdir') == []
+        assert zp2.resource_listdir('subdir/') == []
+
+    def test_resource_filename_rewrites_on_change(self):
+        """
+        If a previous call to get_resource_filename has saved the file, but
+        the file has been subsequently mutated with different file of the
+        same size and modification time, it should not be overwritten on a
+        subsequent call to get_resource_filename.
+        """
+        import mod  # pyright: ignore[reportMissingImports] # Temporary package for test
+
+        manager = pkg_resources.ResourceManager()
+        zp = pkg_resources.ZipProvider(mod)
+        filename = zp.get_resource_filename(manager, 'data.dat')
+        actual = datetime.datetime.fromtimestamp(os.stat(filename).st_mtime)
+        assert actual == self.ref_time
+        f = open(filename, 'w', encoding="utf-8")
+        f.write('hello, world?')
+        f.close()
+        ts = self.ref_time.timestamp()
+        os.utime(filename, (ts, ts))
+        filename = zp.get_resource_filename(manager, 'data.dat')
+        with open(filename, encoding="utf-8") as f:
+            assert f.read() == 'hello, world!'
+        manager.cleanup_resources()
+
+
+class TestResourceManager:
+    def test_get_cache_path(self):
+        mgr = pkg_resources.ResourceManager()
+        path = mgr.get_cache_path('foo')
+        type_ = str(type(path))
+        message = "Unexpected type from get_cache_path: " + type_
+        assert isinstance(path, str), message
+
+    def test_get_cache_path_race(self, tmpdir):
+        # Patch to os.path.isdir to create a race condition
+        def patched_isdir(dirname, unpatched_isdir=pkg_resources.isdir):
+            patched_isdir.dirnames.append(dirname)
+
+            was_dir = unpatched_isdir(dirname)
+            if not was_dir:
+                os.makedirs(dirname)
+            return was_dir
+
+        patched_isdir.dirnames = []
+
+        # Get a cache path with a "race condition"
+        mgr = pkg_resources.ResourceManager()
+        mgr.set_extraction_path(str(tmpdir))
+
+        archive_name = os.sep.join(('foo', 'bar', 'baz'))
+        with mock.patch.object(pkg_resources, 'isdir', new=patched_isdir):
+            mgr.get_cache_path(archive_name)
+
+        # Because this test relies on the implementation details of this
+        # function, these assertions are a sentinel to ensure that the
+        # test suite will not fail silently if the implementation changes.
+        called_dirnames = patched_isdir.dirnames
+        assert len(called_dirnames) == 2
+        assert called_dirnames[0].split(os.sep)[-2:] == ['foo', 'bar']
+        assert called_dirnames[1].split(os.sep)[-1:] == ['foo']
+
+    """
+    Tests to ensure that pkg_resources runs independently from setuptools.
+    """
+
+    def test_setuptools_not_imported(self):
+        """
+        In a separate Python environment, import pkg_resources and assert
+        that action doesn't cause setuptools to be imported.
+        """
+        lines = (
+            'import pkg_resources',
+            'import sys',
+            ('assert "setuptools" not in sys.modules, "setuptools was imported"'),
+        )
+        cmd = [sys.executable, '-c', '; '.join(lines)]
+        subprocess.check_call(cmd)
+
+
+def make_test_distribution(metadata_path, metadata):
+    """
+    Make a test Distribution object, and return it.
+
+    :param metadata_path: the path to the metadata file that should be
+        created. This should be inside a distribution directory that should
+        also be created. For example, an argument value might end with
+        "<project>.dist-info/METADATA".
+    :param metadata: the desired contents of the metadata file, as bytes.
+    """
+    dist_dir = os.path.dirname(metadata_path)
+    os.mkdir(dist_dir)
+    with open(metadata_path, 'wb') as f:
+        f.write(metadata)
+    dists = list(pkg_resources.distributions_from_metadata(dist_dir))
+    (dist,) = dists
+
+    return dist
+
+
+def test_get_metadata__bad_utf8(tmpdir):
+    """
+    Test a metadata file with bytes that can't be decoded as utf-8.
+    """
+    filename = 'METADATA'
+    # Convert the tmpdir LocalPath object to a string before joining.
+    metadata_path = os.path.join(str(tmpdir), 'foo.dist-info', filename)
+    # Encode a non-ascii string with the wrong encoding (not utf-8).
+    metadata = 'née'.encode('iso-8859-1')
+    dist = make_test_distribution(metadata_path, metadata=metadata)
+
+    with pytest.raises(UnicodeDecodeError) as excinfo:
+        dist.get_metadata(filename)
+
+    exc = excinfo.value
+    actual = str(exc)
+    expected = (
+        # The error message starts with "'utf-8' codec ..." However, the
+        # spelling of "utf-8" can vary (e.g. "utf8") so we don't include it
+        "codec can't decode byte 0xe9 in position 1: "
+        'invalid continuation byte in METADATA file at path: '
+    )
+    assert expected in actual, f'actual: {actual}'
+    assert actual.endswith(metadata_path), f'actual: {actual}'
+
+
+def make_distribution_no_version(tmpdir, basename):
+    """
+    Create a distribution directory with no file containing the version.
+    """
+    dist_dir = tmpdir / basename
+    dist_dir.ensure_dir()
+    # Make the directory non-empty so distributions_from_metadata()
+    # will detect it and yield it.
+    dist_dir.join('temp.txt').ensure()
+
+    dists = list(pkg_resources.distributions_from_metadata(dist_dir))
+    assert len(dists) == 1
+    (dist,) = dists
+
+    return dist, dist_dir
+
+
+@pytest.mark.parametrize(
+    ("suffix", "expected_filename", "expected_dist_type"),
+    [
+        ('egg-info', 'PKG-INFO', EggInfoDistribution),
+        ('dist-info', 'METADATA', DistInfoDistribution),
+    ],
+)
+@pytest.mark.xfail(
+    sys.version_info[:2] == (3, 12) and sys.version_info.releaselevel != 'final',
+    reason="https://github.com/python/cpython/issues/103632",
+)
+def test_distribution_version_missing(
+    tmpdir, suffix, expected_filename, expected_dist_type
+):
+    """
+    Test Distribution.version when the "Version" header is missing.
+    """
+    basename = f'foo.{suffix}'
+    dist, dist_dir = make_distribution_no_version(tmpdir, basename)
+
+    expected_text = (
+        f"Missing 'Version:' header and/or {expected_filename} file at path: "
+    )
+    metadata_path = os.path.join(dist_dir, expected_filename)
+
+    # Now check the exception raised when the "version" attribute is accessed.
+    with pytest.raises(ValueError) as excinfo:
+        dist.version
+
+    err = str(excinfo.value)
+    # Include a string expression after the assert so the full strings
+    # will be visible for inspection on failure.
+    assert expected_text in err, str((expected_text, err))
+
+    # Also check the args passed to the ValueError.
+    msg, dist = excinfo.value.args
+    assert expected_text in msg
+    # Check that the message portion contains the path.
+    assert metadata_path in msg, str((metadata_path, msg))
+    assert type(dist) is expected_dist_type
+
+
+@pytest.mark.xfail(
+    sys.version_info[:2] == (3, 12) and sys.version_info.releaselevel != 'final',
+    reason="https://github.com/python/cpython/issues/103632",
+)
+def test_distribution_version_missing_undetected_path():
+    """
+    Test Distribution.version when the "Version" header is missing and
+    the path can't be detected.
+    """
+    # Create a Distribution object with no metadata argument, which results
+    # in an empty metadata provider.
+    dist = Distribution('/foo')
+    with pytest.raises(ValueError) as excinfo:
+        dist.version
+
+    msg, dist = excinfo.value.args
+    expected = (
+        "Missing 'Version:' header and/or PKG-INFO file at path: [could not detect]"
+    )
+    assert msg == expected
+
+
+@pytest.mark.parametrize('only', [False, True])
+def test_dist_info_is_not_dir(tmp_path, only):
+    """Test path containing a file with dist-info extension."""
+    dist_info = tmp_path / 'foobar.dist-info'
+    dist_info.touch()
+    assert not pkg_resources.dist_factory(str(tmp_path), str(dist_info), only)
+
+
+def test_macos_vers_fallback(monkeypatch, tmp_path):
+    """Regression test for pkg_resources._macos_vers"""
+    orig_open = builtins.open
+
+    # Pretend we need to use the plist file
+    monkeypatch.setattr('platform.mac_ver', mock.Mock(return_value=('', (), '')))
+
+    # Create fake content for the fake plist file
+    with open(tmp_path / 'fake.plist', 'wb') as fake_file:
+        plistlib.dump({"ProductVersion": "11.4"}, fake_file)
+
+    # Pretend the fake file exists
+    monkeypatch.setattr('os.path.exists', mock.Mock(return_value=True))
+
+    def fake_open(file, *args, **kwargs):
+        return orig_open(tmp_path / 'fake.plist', *args, **kwargs)
+
+    # Ensure that the _macos_vers works correctly
+    with mock.patch('builtins.open', mock.Mock(side_effect=fake_open)) as m:
+        pkg_resources._macos_vers.cache_clear()
+        assert pkg_resources._macos_vers() == ["11", "4"]
+        pkg_resources._macos_vers.cache_clear()
+
+    m.assert_called()
+
+
+class TestDeepVersionLookupDistutils:
+    @pytest.fixture
+    def env(self, tmpdir):
+        """
+        Create a package environment, similar to a virtualenv,
+        in which packages are installed.
+        """
+
+        class Environment(str):
+            pass
+
+        env = Environment(tmpdir)
+        tmpdir.chmod(stat.S_IRWXU)
+        subs = 'home', 'lib', 'scripts', 'data', 'egg-base'
+        env.paths = dict((dirname, str(tmpdir / dirname)) for dirname in subs)
+        list(map(os.mkdir, env.paths.values()))
+        return env
+
+    def create_foo_pkg(self, env, version):
+        """
+        Create a foo package installed (distutils-style) to env.paths['lib']
+        as version.
+        """
+        ld = "This package has unicode metadata! ❄"
+        attrs = dict(name='foo', version=version, long_description=ld)
+        dist = distutils.dist.Distribution(attrs)
+        iei_cmd = distutils.command.install_egg_info.install_egg_info(dist)
+        iei_cmd.initialize_options()
+        iei_cmd.install_dir = env.paths['lib']
+        iei_cmd.finalize_options()
+        iei_cmd.run()
+
+    def test_version_resolved_from_egg_info(self, env):
+        version = '1.11.0.dev0+2329eae'
+        self.create_foo_pkg(env, version)
+
+        # this requirement parsing will raise a VersionConflict unless the
+        # .egg-info file is parsed (see #419 on BitBucket)
+        req = pkg_resources.Requirement.parse('foo>=1.9')
+        dist = pkg_resources.WorkingSet([env.paths['lib']]).find(req)
+        assert dist.version == version
+
+    @pytest.mark.parametrize(
+        ("unnormalized", "normalized"),
+        [
+            ('foo', 'foo'),
+            ('foo/', 'foo'),
+            ('foo/bar', 'foo/bar'),
+            ('foo/bar/', 'foo/bar'),
+        ],
+    )
+    def test_normalize_path_trailing_sep(self, unnormalized, normalized):
+        """Ensure the trailing slash is cleaned for path comparison.
+
+        See pypa/setuptools#1519.
+        """
+        result_from_unnormalized = pkg_resources.normalize_path(unnormalized)
+        result_from_normalized = pkg_resources.normalize_path(normalized)
+        assert result_from_unnormalized == result_from_normalized
+
+    @pytest.mark.skipif(
+        os.path.normcase('A') != os.path.normcase('a'),
+        reason='Testing case-insensitive filesystems.',
+    )
+    @pytest.mark.parametrize(
+        ("unnormalized", "normalized"),
+        [
+            ('MiXeD/CasE', 'mixed/case'),
+        ],
+    )
+    def test_normalize_path_normcase(self, unnormalized, normalized):
+        """Ensure mixed case is normalized on case-insensitive filesystems."""
+        result_from_unnormalized = pkg_resources.normalize_path(unnormalized)
+        result_from_normalized = pkg_resources.normalize_path(normalized)
+        assert result_from_unnormalized == result_from_normalized
+
+    @pytest.mark.skipif(
+        os.path.sep != '\\',
+        reason='Testing systems using backslashes as path separators.',
+    )
+    @pytest.mark.parametrize(
+        ("unnormalized", "expected"),
+        [
+            ('forward/slash', 'forward\\slash'),
+            ('forward/slash/', 'forward\\slash'),
+            ('backward\\slash\\', 'backward\\slash'),
+        ],
+    )
+    def test_normalize_path_backslash_sep(self, unnormalized, expected):
+        """Ensure path seps are cleaned on backslash path sep systems."""
+        result = pkg_resources.normalize_path(unnormalized)
+        assert result.endswith(expected)
+
+
+class TestWorkdirRequire:
+    def fake_site_packages(self, tmp_path, monkeypatch, dist_files):
+        site_packages = tmp_path / "site-packages"
+        site_packages.mkdir()
+        for file, content in self.FILES.items():
+            path = site_packages / file
+            path.parent.mkdir(exist_ok=True, parents=True)
+            path.write_text(inspect.cleandoc(content), encoding="utf-8")
+
+        monkeypatch.setattr(sys, "path", [site_packages])
+        return os.fspath(site_packages)
+
+    FILES = {
+        "pkg1_mod-1.2.3.dist-info/METADATA": """
+            Metadata-Version: 2.4
+            Name: pkg1.mod
+            Version: 1.2.3
+            """,
+        "pkg2.mod-0.42.dist-info/METADATA": """
+            Metadata-Version: 2.1
+            Name: pkg2.mod
+            Version: 0.42
+            """,
+        "pkg3_mod.egg-info/PKG-INFO": """
+            Name: pkg3.mod
+            Version: 1.2.3.4
+            """,
+        "pkg4.mod.egg-info/PKG-INFO": """
+            Name: pkg4.mod
+            Version: 0.42.1
+            """,
+    }
+
+    @pytest.mark.parametrize(
+        ("version", "requirement"),
+        [
+            ("1.2.3", "pkg1.mod>=1"),
+            ("0.42", "pkg2.mod>=0.4"),
+            ("1.2.3.4", "pkg3.mod<=2"),
+            ("0.42.1", "pkg4.mod>0.2,<1"),
+        ],
+    )
+    def test_require_non_normalised_name(
+        self, tmp_path, monkeypatch, version, requirement
+    ):
+        # https://github.com/pypa/setuptools/issues/4853
+        site_packages = self.fake_site_packages(tmp_path, monkeypatch, self.FILES)
+        ws = pkg_resources.WorkingSet([site_packages])
+
+        for req in [requirement, requirement.replace(".", "-")]:
+            [dist] = ws.require(req)
+            assert dist.version == version
+            assert os.path.samefile(
+                os.path.commonpath([dist.location, site_packages]), site_packages
+            )

lib/python3.11/site-packages/pkg_resources/tests/test_resources.py

@@ -0,0 +1,869 @@
+import itertools
+import os
+import platform
+import string
+import sys
+
+import pytest
+from packaging.specifiers import SpecifierSet
+
+import pkg_resources
+from pkg_resources import (
+    Distribution,
+    EntryPoint,
+    Requirement,
+    VersionConflict,
+    WorkingSet,
+    parse_requirements,
+    parse_version,
+    safe_name,
+    safe_version,
+)
+
+
+# from Python 3.6 docs. Available from itertools on Python 3.10
+def pairwise(iterable):
+    "s -> (s0,s1), (s1,s2), (s2, s3), ..."
+    a, b = itertools.tee(iterable)
+    next(b, None)
+    return zip(a, b)
+
+
+class Metadata(pkg_resources.EmptyProvider):
+    """Mock object to return metadata as if from an on-disk distribution"""
+
+    def __init__(self, *pairs) -> None:
+        self.metadata = dict(pairs)
+
+    def has_metadata(self, name) -> bool:
+        return name in self.metadata
+
+    def get_metadata(self, name):
+        return self.metadata[name]
+
+    def get_metadata_lines(self, name):
+        return pkg_resources.yield_lines(self.get_metadata(name))
+
+
+dist_from_fn = pkg_resources.Distribution.from_filename
+
+
+class TestDistro:
+    def testCollection(self):
+        # empty path should produce no distributions
+        ad = pkg_resources.Environment([], platform=None, python=None)
+        assert list(ad) == []
+        assert ad['FooPkg'] == []
+        ad.add(dist_from_fn("FooPkg-1.3_1.egg"))
+        ad.add(dist_from_fn("FooPkg-1.4-py2.4-win32.egg"))
+        ad.add(dist_from_fn("FooPkg-1.2-py2.4.egg"))
+
+        # Name is in there now
+        assert ad['FooPkg']
+        # But only 1 package
+        assert list(ad) == ['foopkg']
+
+        # Distributions sort by version
+        expected = ['1.4', '1.3-1', '1.2']
+        assert [dist.version for dist in ad['FooPkg']] == expected
+
+        # Removing a distribution leaves sequence alone
+        ad.remove(ad['FooPkg'][1])
+        assert [dist.version for dist in ad['FooPkg']] == ['1.4', '1.2']
+
+        # And inserting adds them in order
+        ad.add(dist_from_fn("FooPkg-1.9.egg"))
+        assert [dist.version for dist in ad['FooPkg']] == ['1.9', '1.4', '1.2']
+
+        ws = WorkingSet([])
+        foo12 = dist_from_fn("FooPkg-1.2-py2.4.egg")
+        foo14 = dist_from_fn("FooPkg-1.4-py2.4-win32.egg")
+        (req,) = parse_requirements("FooPkg>=1.3")
+
+        # Nominal case: no distros on path, should yield all applicable
+        assert ad.best_match(req, ws).version == '1.9'
+        # If a matching distro is already installed, should return only that
+        ws.add(foo14)
+        assert ad.best_match(req, ws).version == '1.4'
+
+        # If the first matching distro is unsuitable, it's a version conflict
+        ws = WorkingSet([])
+        ws.add(foo12)
+        ws.add(foo14)
+        with pytest.raises(VersionConflict):
+            ad.best_match(req, ws)
+
+        # If more than one match on the path, the first one takes precedence
+        ws = WorkingSet([])
+        ws.add(foo14)
+        ws.add(foo12)
+        ws.add(foo14)
+        assert ad.best_match(req, ws).version == '1.4'
+
+    def checkFooPkg(self, d):
+        assert d.project_name == "FooPkg"
+        assert d.key == "foopkg"
+        assert d.version == "1.3.post1"
+        assert d.py_version == "2.4"
+        assert d.platform == "win32"
+        assert d.parsed_version == parse_version("1.3-1")
+
+    def testDistroBasics(self):
+        d = Distribution(
+            "/some/path",
+            project_name="FooPkg",
+            version="1.3-1",
+            py_version="2.4",
+            platform="win32",
+        )
+        self.checkFooPkg(d)
+
+        d = Distribution("/some/path")
+        assert d.py_version == f'{sys.version_info.major}.{sys.version_info.minor}'
+        assert d.platform is None
+
+    def testDistroParse(self):
+        d = dist_from_fn("FooPkg-1.3.post1-py2.4-win32.egg")
+        self.checkFooPkg(d)
+        d = dist_from_fn("FooPkg-1.3.post1-py2.4-win32.egg-info")
+        self.checkFooPkg(d)
+
+    def testDistroMetadata(self):
+        d = Distribution(
+            "/some/path",
+            project_name="FooPkg",
+            py_version="2.4",
+            platform="win32",
+            metadata=Metadata(('PKG-INFO', "Metadata-Version: 1.0\nVersion: 1.3-1\n")),
+        )
+        self.checkFooPkg(d)
+
+    def distRequires(self, txt):
+        return Distribution("/foo", metadata=Metadata(('depends.txt', txt)))
+
+    def checkRequires(self, dist, txt, extras=()):
+        assert list(dist.requires(extras)) == list(parse_requirements(txt))
+
+    def testDistroDependsSimple(self):
+        for v in "Twisted>=1.5", "Twisted>=1.5\nZConfig>=2.0":
+            self.checkRequires(self.distRequires(v), v)
+
+    needs_object_dir = pytest.mark.skipif(
+        not hasattr(object, '__dir__'),
+        reason='object.__dir__ necessary for self.__dir__ implementation',
+    )
+
+    def test_distribution_dir(self):
+        d = pkg_resources.Distribution()
+        dir(d)
+
+    @needs_object_dir
+    def test_distribution_dir_includes_provider_dir(self):
+        d = pkg_resources.Distribution()
+        before = d.__dir__()
+        assert 'test_attr' not in before
+        d._provider.test_attr = None
+        after = d.__dir__()
+        assert len(after) == len(before) + 1
+        assert 'test_attr' in after
+
+    @needs_object_dir
+    def test_distribution_dir_ignores_provider_dir_leading_underscore(self):
+        d = pkg_resources.Distribution()
+        before = d.__dir__()
+        assert '_test_attr' not in before
+        d._provider._test_attr = None
+        after = d.__dir__()
+        assert len(after) == len(before)
+        assert '_test_attr' not in after
+
+    def testResolve(self):
+        ad = pkg_resources.Environment([])
+        ws = WorkingSet([])
+        # Resolving no requirements -> nothing to install
+        assert list(ws.resolve([], ad)) == []
+        # Request something not in the collection -> DistributionNotFound
+        with pytest.raises(pkg_resources.DistributionNotFound):
+            ws.resolve(parse_requirements("Foo"), ad)
+
+        Foo = Distribution.from_filename(
+            "/foo_dir/Foo-1.2.egg",
+            metadata=Metadata(('depends.txt', "[bar]\nBaz>=2.0")),
+        )
+        ad.add(Foo)
+        ad.add(Distribution.from_filename("Foo-0.9.egg"))
+
+        # Request thing(s) that are available -> list to activate
+        for i in range(3):
+            targets = list(ws.resolve(parse_requirements("Foo"), ad))
+            assert targets == [Foo]
+            list(map(ws.add, targets))
+        with pytest.raises(VersionConflict):
+            ws.resolve(parse_requirements("Foo==0.9"), ad)
+        ws = WorkingSet([])  # reset
+
+        # Request an extra that causes an unresolved dependency for "Baz"
+        with pytest.raises(pkg_resources.DistributionNotFound):
+            ws.resolve(parse_requirements("Foo[bar]"), ad)
+        Baz = Distribution.from_filename(
+            "/foo_dir/Baz-2.1.egg", metadata=Metadata(('depends.txt', "Foo"))
+        )
+        ad.add(Baz)
+
+        # Activation list now includes resolved dependency
+        assert list(ws.resolve(parse_requirements("Foo[bar]"), ad)) == [Foo, Baz]
+        # Requests for conflicting versions produce VersionConflict
+        with pytest.raises(VersionConflict) as vc:
+            ws.resolve(parse_requirements("Foo==1.2\nFoo!=1.2"), ad)
+
+        msg = 'Foo 0.9 is installed but Foo==1.2 is required'
+        assert vc.value.report() == msg
+
+    def test_environment_marker_evaluation_negative(self):
+        """Environment markers are evaluated at resolution time."""
+        ad = pkg_resources.Environment([])
+        ws = WorkingSet([])
+        res = ws.resolve(parse_requirements("Foo;python_version<'2'"), ad)
+        assert list(res) == []
+
+    def test_environment_marker_evaluation_positive(self):
+        ad = pkg_resources.Environment([])
+        ws = WorkingSet([])
+        Foo = Distribution.from_filename("/foo_dir/Foo-1.2.dist-info")
+        ad.add(Foo)
+        res = ws.resolve(parse_requirements("Foo;python_version>='2'"), ad)
+        assert list(res) == [Foo]
+
+    def test_environment_marker_evaluation_called(self):
+        """
+        If one package foo requires bar without any extras,
+        markers should pass for bar without extras.
+        """
+        (parent_req,) = parse_requirements("foo")
+        (req,) = parse_requirements("bar;python_version>='2'")
+        req_extras = pkg_resources._ReqExtras({req: parent_req.extras})
+        assert req_extras.markers_pass(req)
+
+        (parent_req,) = parse_requirements("foo[]")
+        (req,) = parse_requirements("bar;python_version>='2'")
+        req_extras = pkg_resources._ReqExtras({req: parent_req.extras})
+        assert req_extras.markers_pass(req)
+
+    def test_marker_evaluation_with_extras(self):
+        """Extras are also evaluated as markers at resolution time."""
+        ad = pkg_resources.Environment([])
+        ws = WorkingSet([])
+        Foo = Distribution.from_filename(
+            "/foo_dir/Foo-1.2.dist-info",
+            metadata=Metadata((
+                "METADATA",
+                "Provides-Extra: baz\nRequires-Dist: quux; extra=='baz'",
+            )),
+        )
+        ad.add(Foo)
+        assert list(ws.resolve(parse_requirements("Foo"), ad)) == [Foo]
+        quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info")
+        ad.add(quux)
+        res = list(ws.resolve(parse_requirements("Foo[baz]"), ad))
+        assert res == [Foo, quux]
+
+    def test_marker_evaluation_with_extras_normlized(self):
+        """Extras are also evaluated as markers at resolution time."""
+        ad = pkg_resources.Environment([])
+        ws = WorkingSet([])
+        Foo = Distribution.from_filename(
+            "/foo_dir/Foo-1.2.dist-info",
+            metadata=Metadata((
+                "METADATA",
+                "Provides-Extra: baz-lightyear\n"
+                "Requires-Dist: quux; extra=='baz-lightyear'",
+            )),
+        )
+        ad.add(Foo)
+        assert list(ws.resolve(parse_requirements("Foo"), ad)) == [Foo]
+        quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info")
+        ad.add(quux)
+        res = list(ws.resolve(parse_requirements("Foo[baz-lightyear]"), ad))
+        assert res == [Foo, quux]
+
+    def test_marker_evaluation_with_multiple_extras(self):
+        ad = pkg_resources.Environment([])
+        ws = WorkingSet([])
+        Foo = Distribution.from_filename(
+            "/foo_dir/Foo-1.2.dist-info",
+            metadata=Metadata((
+                "METADATA",
+                "Provides-Extra: baz\n"
+                "Requires-Dist: quux; extra=='baz'\n"
+                "Provides-Extra: bar\n"
+                "Requires-Dist: fred; extra=='bar'\n",
+            )),
+        )
+        ad.add(Foo)
+        quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info")
+        ad.add(quux)
+        fred = Distribution.from_filename("/foo_dir/fred-0.1.dist-info")
+        ad.add(fred)
+        res = list(ws.resolve(parse_requirements("Foo[baz,bar]"), ad))
+        assert sorted(res) == [fred, quux, Foo]
+
+    def test_marker_evaluation_with_extras_loop(self):
+        ad = pkg_resources.Environment([])
+        ws = WorkingSet([])
+        a = Distribution.from_filename(
+            "/foo_dir/a-0.2.dist-info",
+            metadata=Metadata(("METADATA", "Requires-Dist: c[a]")),
+        )
+        b = Distribution.from_filename(
+            "/foo_dir/b-0.3.dist-info",
+            metadata=Metadata(("METADATA", "Requires-Dist: c[b]")),
+        )
+        c = Distribution.from_filename(
+            "/foo_dir/c-1.0.dist-info",
+            metadata=Metadata((
+                "METADATA",
+                "Provides-Extra: a\n"
+                "Requires-Dist: b;extra=='a'\n"
+                "Provides-Extra: b\n"
+                "Requires-Dist: foo;extra=='b'",
+            )),
+        )
+        foo = Distribution.from_filename("/foo_dir/foo-0.1.dist-info")
+        for dist in (a, b, c, foo):
+            ad.add(dist)
+        res = list(ws.resolve(parse_requirements("a"), ad))
+        assert res == [a, c, b, foo]
+
+    @pytest.mark.xfail(
+        sys.version_info[:2] == (3, 12) and sys.version_info.releaselevel != 'final',
+        reason="https://github.com/python/cpython/issues/103632",
+    )
+    def testDistroDependsOptions(self):
+        d = self.distRequires(
+            """
+            Twisted>=1.5
+            [docgen]
+            ZConfig>=2.0
+            docutils>=0.3
+            [fastcgi]
+            fcgiapp>=0.1"""
+        )
+        self.checkRequires(d, "Twisted>=1.5")
+        self.checkRequires(
+            d, "Twisted>=1.5 ZConfig>=2.0 docutils>=0.3".split(), ["docgen"]
+        )
+        self.checkRequires(d, "Twisted>=1.5 fcgiapp>=0.1".split(), ["fastcgi"])
+        self.checkRequires(
+            d,
+            "Twisted>=1.5 ZConfig>=2.0 docutils>=0.3 fcgiapp>=0.1".split(),
+            ["docgen", "fastcgi"],
+        )
+        self.checkRequires(
+            d,
+            "Twisted>=1.5 fcgiapp>=0.1 ZConfig>=2.0 docutils>=0.3".split(),
+            ["fastcgi", "docgen"],
+        )
+        with pytest.raises(pkg_resources.UnknownExtra):
+            d.requires(["foo"])
+
+
+class TestWorkingSet:
+    def test_find_conflicting(self):
+        ws = WorkingSet([])
+        Foo = Distribution.from_filename("/foo_dir/Foo-1.2.egg")
+        ws.add(Foo)
+
+        # create a requirement that conflicts with Foo 1.2
+        req = next(parse_requirements("Foo<1.2"))
+
+        with pytest.raises(VersionConflict) as vc:
+            ws.find(req)
+
+        msg = 'Foo 1.2 is installed but Foo<1.2 is required'
+        assert vc.value.report() == msg
+
+    def test_resolve_conflicts_with_prior(self):
+        """
+        A ContextualVersionConflict should be raised when a requirement
+        conflicts with a prior requirement for a different package.
+        """
+        # Create installation where Foo depends on Baz 1.0 and Bar depends on
+        # Baz 2.0.
+        ws = WorkingSet([])
+        md = Metadata(('depends.txt', "Baz==1.0"))
+        Foo = Distribution.from_filename("/foo_dir/Foo-1.0.egg", metadata=md)
+        ws.add(Foo)
+        md = Metadata(('depends.txt', "Baz==2.0"))
+        Bar = Distribution.from_filename("/foo_dir/Bar-1.0.egg", metadata=md)
+        ws.add(Bar)
+        Baz = Distribution.from_filename("/foo_dir/Baz-1.0.egg")
+        ws.add(Baz)
+        Baz = Distribution.from_filename("/foo_dir/Baz-2.0.egg")
+        ws.add(Baz)
+
+        with pytest.raises(VersionConflict) as vc:
+            ws.resolve(parse_requirements("Foo\nBar\n"))
+
+        msg = "Baz 1.0 is installed but Baz==2.0 is required by "
+        msg += repr(set(['Bar']))
+        assert vc.value.report() == msg
+
+
+class TestEntryPoints:
+    def assertfields(self, ep):
+        assert ep.name == "foo"
+        assert ep.module_name == "pkg_resources.tests.test_resources"
+        assert ep.attrs == ("TestEntryPoints",)
+        assert ep.extras == ("x",)
+        assert ep.load() is TestEntryPoints
+        expect = "foo = pkg_resources.tests.test_resources:TestEntryPoints [x]"
+        assert str(ep) == expect
+
+    def setup_method(self, method):
+        self.dist = Distribution.from_filename(
+            "FooPkg-1.2-py2.4.egg", metadata=Metadata(('requires.txt', '[x]'))
+        )
+
+    def testBasics(self):
+        ep = EntryPoint(
+            "foo",
+            "pkg_resources.tests.test_resources",
+            ["TestEntryPoints"],
+            ["x"],
+            self.dist,
+        )
+        self.assertfields(ep)
+
+    def testParse(self):
+        s = "foo = pkg_resources.tests.test_resources:TestEntryPoints [x]"
+        ep = EntryPoint.parse(s, self.dist)
+        self.assertfields(ep)
+
+        ep = EntryPoint.parse("bar baz=  spammity[PING]")
+        assert ep.name == "bar baz"
+        assert ep.module_name == "spammity"
+        assert ep.attrs == ()
+        assert ep.extras == ("ping",)
+
+        ep = EntryPoint.parse(" fizzly =  wocka:foo")
+        assert ep.name == "fizzly"
+        assert ep.module_name == "wocka"
+        assert ep.attrs == ("foo",)
+        assert ep.extras == ()
+
+        # plus in the name
+        spec = "html+mako = mako.ext.pygmentplugin:MakoHtmlLexer"
+        ep = EntryPoint.parse(spec)
+        assert ep.name == 'html+mako'
+
+    reject_specs = "foo", "x=a:b:c", "q=x/na", "fez=pish:tush-z", "x=f[a]>2"
+
+    @pytest.mark.parametrize("reject_spec", reject_specs)
+    def test_reject_spec(self, reject_spec):
+        with pytest.raises(ValueError):
+            EntryPoint.parse(reject_spec)
+
+    def test_printable_name(self):
+        """
+        Allow any printable character in the name.
+        """
+        # Create a name with all printable characters; strip the whitespace.
+        name = string.printable.strip()
+        spec = "{name} = module:attr".format(**locals())
+        ep = EntryPoint.parse(spec)
+        assert ep.name == name
+
+    def checkSubMap(self, m):
+        assert len(m) == len(self.submap_expect)
+        for key, ep in self.submap_expect.items():
+            assert m.get(key).name == ep.name
+            assert m.get(key).module_name == ep.module_name
+            assert sorted(m.get(key).attrs) == sorted(ep.attrs)
+            assert sorted(m.get(key).extras) == sorted(ep.extras)
+
+    submap_expect = dict(
+        feature1=EntryPoint('feature1', 'somemodule', ['somefunction']),
+        feature2=EntryPoint(
+            'feature2', 'another.module', ['SomeClass'], ['extra1', 'extra2']
+        ),
+        feature3=EntryPoint('feature3', 'this.module', extras=['something']),
+    )
+    submap_str = """
+            # define features for blah blah
+            feature1 = somemodule:somefunction
+            feature2 = another.module:SomeClass [extra1,extra2]
+            feature3 = this.module [something]
+    """
+
+    def testParseList(self):
+        self.checkSubMap(EntryPoint.parse_group("xyz", self.submap_str))
+        with pytest.raises(ValueError):
+            EntryPoint.parse_group("x a", "foo=bar")
+        with pytest.raises(ValueError):
+            EntryPoint.parse_group("x", ["foo=baz", "foo=bar"])
+
+    def testParseMap(self):
+        m = EntryPoint.parse_map({'xyz': self.submap_str})
+        self.checkSubMap(m['xyz'])
+        assert list(m.keys()) == ['xyz']
+        m = EntryPoint.parse_map("[xyz]\n" + self.submap_str)
+        self.checkSubMap(m['xyz'])
+        assert list(m.keys()) == ['xyz']
+        with pytest.raises(ValueError):
+            EntryPoint.parse_map(["[xyz]", "[xyz]"])
+        with pytest.raises(ValueError):
+            EntryPoint.parse_map(self.submap_str)
+
+    def testDeprecationWarnings(self):
+        ep = EntryPoint(
+            "foo", "pkg_resources.tests.test_resources", ["TestEntryPoints"], ["x"]
+        )
+        with pytest.warns(pkg_resources.PkgResourcesDeprecationWarning):
+            ep.load(require=False)
+
+
+class TestRequirements:
+    def testBasics(self):
+        r = Requirement.parse("Twisted>=1.2")
+        assert str(r) == "Twisted>=1.2"
+        assert repr(r) == "Requirement.parse('Twisted>=1.2')"
+        assert r == Requirement("Twisted>=1.2")
+        assert r == Requirement("twisTed>=1.2")
+        assert r != Requirement("Twisted>=2.0")
+        assert r != Requirement("Zope>=1.2")
+        assert r != Requirement("Zope>=3.0")
+        assert r != Requirement("Twisted[extras]>=1.2")
+
+    def testOrdering(self):
+        r1 = Requirement("Twisted==1.2c1,>=1.2")
+        r2 = Requirement("Twisted>=1.2,==1.2c1")
+        assert r1 == r2
+        assert str(r1) == str(r2)
+        assert str(r2) == "Twisted==1.2c1,>=1.2"
+        assert Requirement("Twisted") != Requirement(
+            "Twisted @ https://localhost/twisted.zip"
+        )
+
+    def testBasicContains(self):
+        r = Requirement("Twisted>=1.2")
+        foo_dist = Distribution.from_filename("FooPkg-1.3_1.egg")
+        twist11 = Distribution.from_filename("Twisted-1.1.egg")
+        twist12 = Distribution.from_filename("Twisted-1.2.egg")
+        assert parse_version('1.2') in r
+        assert parse_version('1.1') not in r
+        assert '1.2' in r
+        assert '1.1' not in r
+        assert foo_dist not in r
+        assert twist11 not in r
+        assert twist12 in r
+
+    def testOptionsAndHashing(self):
+        r1 = Requirement.parse("Twisted[foo,bar]>=1.2")
+        r2 = Requirement.parse("Twisted[bar,FOO]>=1.2")
+        assert r1 == r2
+        assert set(r1.extras) == set(("foo", "bar"))
+        assert set(r2.extras) == set(("foo", "bar"))
+        assert hash(r1) == hash(r2)
+        assert hash(r1) == hash((
+            "twisted",
+            None,
+            SpecifierSet(">=1.2"),
+            frozenset(["foo", "bar"]),
+            None,
+        ))
+        assert hash(
+            Requirement.parse("Twisted @ https://localhost/twisted.zip")
+        ) == hash((
+            "twisted",
+            "https://localhost/twisted.zip",
+            SpecifierSet(),
+            frozenset(),
+            None,
+        ))
+
+    def testVersionEquality(self):
+        r1 = Requirement.parse("foo==0.3a2")
+        r2 = Requirement.parse("foo!=0.3a4")
+        d = Distribution.from_filename
+
+        assert d("foo-0.3a4.egg") not in r1
+        assert d("foo-0.3a1.egg") not in r1
+        assert d("foo-0.3a4.egg") not in r2
+
+        assert d("foo-0.3a2.egg") in r1
+        assert d("foo-0.3a2.egg") in r2
+        assert d("foo-0.3a3.egg") in r2
+        assert d("foo-0.3a5.egg") in r2
+
+    def testSetuptoolsProjectName(self):
+        """
+        The setuptools project should implement the setuptools package.
+        """
+
+        assert Requirement.parse('setuptools').project_name == 'setuptools'
+        # setuptools 0.7 and higher means setuptools.
+        assert Requirement.parse('setuptools == 0.7').project_name == 'setuptools'
+        assert Requirement.parse('setuptools == 0.7a1').project_name == 'setuptools'
+        assert Requirement.parse('setuptools >= 0.7').project_name == 'setuptools'
+
+
+class TestParsing:
+    def testEmptyParse(self):
+        assert list(parse_requirements('')) == []
+
+    def testYielding(self):
+        for inp, out in [
+            ([], []),
+            ('x', ['x']),
+            ([[]], []),
+            (' x\n y', ['x', 'y']),
+            (['x\n\n', 'y'], ['x', 'y']),
+        ]:
+            assert list(pkg_resources.yield_lines(inp)) == out
+
+    def testSplitting(self):
+        sample = """
+                    x
+                    [Y]
+                    z
+
+                    a
+                    [b ]
+                    # foo
+                    c
+                    [ d]
+                    [q]
+                    v
+                    """
+        assert list(pkg_resources.split_sections(sample)) == [
+            (None, ["x"]),
+            ("Y", ["z", "a"]),
+            ("b", ["c"]),
+            ("d", []),
+            ("q", ["v"]),
+        ]
+        with pytest.raises(ValueError):
+            list(pkg_resources.split_sections("[foo"))
+
+    def testSafeName(self):
+        assert safe_name("adns-python") == "adns-python"
+        assert safe_name("WSGI Utils") == "WSGI-Utils"
+        assert safe_name("WSGI  Utils") == "WSGI-Utils"
+        assert safe_name("Money$$$Maker") == "Money-Maker"
+        assert safe_name("peak.web") != "peak-web"
+
+    def testSafeVersion(self):
+        assert safe_version("1.2-1") == "1.2.post1"
+        assert safe_version("1.2 alpha") == "1.2.alpha"
+        assert safe_version("2.3.4 20050521") == "2.3.4.20050521"
+        assert safe_version("Money$$$Maker") == "Money-Maker"
+        assert safe_version("peak.web") == "peak.web"
+
+    def testSimpleRequirements(self):
+        assert list(parse_requirements('Twis-Ted>=1.2-1')) == [
+            Requirement('Twis-Ted>=1.2-1')
+        ]
+        assert list(parse_requirements('Twisted >=1.2, \\ # more\n<2.0')) == [
+            Requirement('Twisted>=1.2,<2.0')
+        ]
+        assert Requirement.parse("FooBar==1.99a3") == Requirement("FooBar==1.99a3")
+        with pytest.raises(ValueError):
+            Requirement.parse(">=2.3")
+        with pytest.raises(ValueError):
+            Requirement.parse("x\\")
+        with pytest.raises(ValueError):
+            Requirement.parse("x==2 q")
+        with pytest.raises(ValueError):
+            Requirement.parse("X==1\nY==2")
+        with pytest.raises(ValueError):
+            Requirement.parse("#")
+
+    def test_requirements_with_markers(self):
+        assert Requirement.parse("foobar;os_name=='a'") == Requirement.parse(
+            "foobar;os_name=='a'"
+        )
+        assert Requirement.parse(
+            "name==1.1;python_version=='2.7'"
+        ) != Requirement.parse("name==1.1;python_version=='3.6'")
+        assert Requirement.parse(
+            "name==1.0;python_version=='2.7'"
+        ) != Requirement.parse("name==1.2;python_version=='2.7'")
+        assert Requirement.parse(
+            "name[foo]==1.0;python_version=='3.6'"
+        ) != Requirement.parse("name[foo,bar]==1.0;python_version=='3.6'")
+
+    def test_local_version(self):
+        parse_requirements('foo==1.0+org1')
+
+    def test_spaces_between_multiple_versions(self):
+        parse_requirements('foo>=1.0, <3')
+        parse_requirements('foo >= 1.0, < 3')
+
+    @pytest.mark.parametrize(
+        ("lower", "upper"),
+        [
+            ('1.2-rc1', '1.2rc1'),
+            ('0.4', '0.4.0'),
+            ('0.4.0.0', '0.4.0'),
+            ('0.4.0-0', '0.4-0'),
+            ('0post1', '0.0post1'),
+            ('0pre1', '0.0c1'),
+            ('0.0.0preview1', '0c1'),
+            ('0.0c1', '0-rc1'),
+            ('1.2a1', '1.2.a.1'),
+            ('1.2.a', '1.2a'),
+        ],
+    )
+    def testVersionEquality(self, lower, upper):
+        assert parse_version(lower) == parse_version(upper)
+
+    torture = """
+        0.80.1-3 0.80.1-2 0.80.1-1 0.79.9999+0.80.0pre4-1
+        0.79.9999+0.80.0pre2-3 0.79.9999+0.80.0pre2-2
+        0.77.2-1 0.77.1-1 0.77.0-1
+        """
+
+    @pytest.mark.parametrize(
+        ("lower", "upper"),
+        [
+            ('2.1', '2.1.1'),
+            ('2a1', '2b0'),
+            ('2a1', '2.1'),
+            ('2.3a1', '2.3'),
+            ('2.1-1', '2.1-2'),
+            ('2.1-1', '2.1.1'),
+            ('2.1', '2.1post4'),
+            ('2.1a0-20040501', '2.1'),
+            ('1.1', '02.1'),
+            ('3.2', '3.2.post0'),
+            ('3.2post1', '3.2post2'),
+            ('0.4', '4.0'),
+            ('0.0.4', '0.4.0'),
+            ('0post1', '0.4post1'),
+            ('2.1.0-rc1', '2.1.0'),
+            ('2.1dev', '2.1a0'),
+        ]
+        + list(pairwise(reversed(torture.split()))),
+    )
+    def testVersionOrdering(self, lower, upper):
+        assert parse_version(lower) < parse_version(upper)
+
+    def testVersionHashable(self):
+        """
+        Ensure that our versions stay hashable even though we've subclassed
+        them and added some shim code to them.
+        """
+        assert hash(parse_version("1.0")) == hash(parse_version("1.0"))
+
+
+class TestNamespaces:
+    ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
+
+    @pytest.fixture
+    def symlinked_tmpdir(self, tmpdir):
+        """
+        Where available, return the tempdir as a symlink,
+        which as revealed in #231 is more fragile than
+        a natural tempdir.
+        """
+        if not hasattr(os, 'symlink'):
+            yield str(tmpdir)
+            return
+
+        link_name = str(tmpdir) + '-linked'
+        os.symlink(str(tmpdir), link_name)
+        try:
+            yield type(tmpdir)(link_name)
+        finally:
+            os.unlink(link_name)
+
+    @pytest.fixture(autouse=True)
+    def patched_path(self, tmpdir):
+        """
+        Patch sys.path to include the 'site-pkgs' dir. Also
+        restore pkg_resources._namespace_packages to its
+        former state.
+        """
+        saved_ns_pkgs = pkg_resources._namespace_packages.copy()
+        saved_sys_path = sys.path[:]
+        site_pkgs = tmpdir.mkdir('site-pkgs')
+        sys.path.append(str(site_pkgs))
+        try:
+            yield
+        finally:
+            pkg_resources._namespace_packages = saved_ns_pkgs
+            sys.path = saved_sys_path
+
+    issue591 = pytest.mark.xfail(platform.system() == 'Windows', reason="#591")
+
+    @issue591
+    def test_two_levels_deep(self, symlinked_tmpdir):
+        """
+        Test nested namespace packages
+        Create namespace packages in the following tree :
+            site-packages-1/pkg1/pkg2
+            site-packages-2/pkg1/pkg2
+        Check both are in the _namespace_packages dict and that their __path__
+        is correct
+        """
+        real_tmpdir = symlinked_tmpdir.realpath()
+        tmpdir = symlinked_tmpdir
+        sys.path.append(str(tmpdir / 'site-pkgs2'))
+        site_dirs = tmpdir / 'site-pkgs', tmpdir / 'site-pkgs2'
+        for site in site_dirs:
+            pkg1 = site / 'pkg1'
+            pkg2 = pkg1 / 'pkg2'
+            pkg2.ensure_dir()
+            (pkg1 / '__init__.py').write_text(self.ns_str, encoding='utf-8')
+            (pkg2 / '__init__.py').write_text(self.ns_str, encoding='utf-8')
+        with pytest.warns(DeprecationWarning, match="pkg_resources.declare_namespace"):
+            import pkg1  # pyright: ignore[reportMissingImports] # Temporary package for test
+        assert "pkg1" in pkg_resources._namespace_packages
+        # attempt to import pkg2 from site-pkgs2
+        with pytest.warns(DeprecationWarning, match="pkg_resources.declare_namespace"):
+            import pkg1.pkg2  # pyright: ignore[reportMissingImports] # Temporary package for test
+        # check the _namespace_packages dict
+        assert "pkg1.pkg2" in pkg_resources._namespace_packages
+        assert pkg_resources._namespace_packages["pkg1"] == ["pkg1.pkg2"]
+        # check the __path__ attribute contains both paths
+        expected = [
+            str(real_tmpdir / "site-pkgs" / "pkg1" / "pkg2"),
+            str(real_tmpdir / "site-pkgs2" / "pkg1" / "pkg2"),
+        ]
+        assert pkg1.pkg2.__path__ == expected
+
+    @issue591
+    def test_path_order(self, symlinked_tmpdir):
+        """
+        Test that if multiple versions of the same namespace package subpackage
+        are on different sys.path entries, that only the one earliest on
+        sys.path is imported, and that the namespace package's __path__ is in
+        the correct order.
+
+        Regression test for https://github.com/pypa/setuptools/issues/207
+        """
+
+        tmpdir = symlinked_tmpdir
+        site_dirs = (
+            tmpdir / "site-pkgs",
+            tmpdir / "site-pkgs2",
+            tmpdir / "site-pkgs3",
+        )
+
+        vers_str = "__version__ = %r"
+
+        for number, site in enumerate(site_dirs, 1):
+            if number > 1:
+                sys.path.append(str(site))
+            nspkg = site / 'nspkg'
+            subpkg = nspkg / 'subpkg'
+            subpkg.ensure_dir()
+            (nspkg / '__init__.py').write_text(self.ns_str, encoding='utf-8')
+            (subpkg / '__init__.py').write_text(vers_str % number, encoding='utf-8')
+
+        with pytest.warns(DeprecationWarning, match="pkg_resources.declare_namespace"):
+            import nspkg  # pyright: ignore[reportMissingImports] # Temporary package for test
+            import nspkg.subpkg  # pyright: ignore[reportMissingImports] # Temporary package for test
+        expected = [str(site.realpath() / 'nspkg') for site in site_dirs]
+        assert nspkg.__path__ == expected
+        assert nspkg.subpkg.__version__ == 1

lib/python3.11/site-packages/pkg_resources/tests/test_working_set.py

@@ -0,0 +1,505 @@
+import functools
+import inspect
+import re
+import textwrap
+
+import pytest
+
+import pkg_resources
+
+from .test_resources import Metadata
+
+
+def strip_comments(s):
+    return '\n'.join(
+        line
+        for line in s.split('\n')
+        if line.strip() and not line.strip().startswith('#')
+    )
+
+
+def parse_distributions(s):
+    """
+    Parse a series of distribution specs of the form:
+    {project_name}-{version}
+       [optional, indented requirements specification]
+
+    Example:
+
+        foo-0.2
+        bar-1.0
+          foo>=3.0
+          [feature]
+          baz
+
+    yield 2 distributions:
+        - project_name=foo, version=0.2
+        - project_name=bar, version=1.0,
+          requires=['foo>=3.0', 'baz; extra=="feature"']
+    """
+    s = s.strip()
+    for spec in re.split(r'\n(?=[^\s])', s):
+        if not spec:
+            continue
+        fields = spec.split('\n', 1)
+        assert 1 <= len(fields) <= 2
+        name, version = fields.pop(0).rsplit('-', 1)
+        if fields:
+            requires = textwrap.dedent(fields.pop(0))
+            metadata = Metadata(('requires.txt', requires))
+        else:
+            metadata = None
+        dist = pkg_resources.Distribution(
+            project_name=name, version=version, metadata=metadata
+        )
+        yield dist
+
+
+class FakeInstaller:
+    def __init__(self, installable_dists) -> None:
+        self._installable_dists = installable_dists
+
+    def __call__(self, req):
+        return next(
+            iter(filter(lambda dist: dist in req, self._installable_dists)), None
+        )
+
+
+def parametrize_test_working_set_resolve(*test_list):
+    idlist = []
+    argvalues = []
+    for test in test_list:
+        (
+            name,
+            installed_dists,
+            installable_dists,
+            requirements,
+            expected1,
+            expected2,
+        ) = (
+            strip_comments(s.lstrip())
+            for s in textwrap.dedent(test).lstrip().split('\n\n', 5)
+        )
+        installed_dists = list(parse_distributions(installed_dists))
+        installable_dists = list(parse_distributions(installable_dists))
+        requirements = list(pkg_resources.parse_requirements(requirements))
+        for id_, replace_conflicting, expected in (
+            (name, False, expected1),
+            (name + '_replace_conflicting', True, expected2),
+        ):
+            idlist.append(id_)
+            expected = strip_comments(expected.strip())
+            if re.match(r'\w+$', expected):
+                expected = getattr(pkg_resources, expected)
+                assert issubclass(expected, Exception)
+            else:
+                expected = list(parse_distributions(expected))
+            argvalues.append(
+                pytest.param(
+                    installed_dists,
+                    installable_dists,
+                    requirements,
+                    replace_conflicting,
+                    expected,
+                )
+            )
+    return pytest.mark.parametrize(
+        (
+            "installed_dists",
+            "installable_dists",
+            "requirements",
+            "replace_conflicting",
+            "resolved_dists_or_exception",
+        ),
+        argvalues,
+        ids=idlist,
+    )
+
+
+@parametrize_test_working_set_resolve(
+    """
+    # id
+    noop
+
+    # installed
+
+    # installable
+
+    # wanted
+
+    # resolved
+
+    # resolved [replace conflicting]
+    """,
+    """
+    # id
+    already_installed
+
+    # installed
+    foo-3.0
+
+    # installable
+
+    # wanted
+    foo>=2.1,!=3.1,<4
+
+    # resolved
+    foo-3.0
+
+    # resolved [replace conflicting]
+    foo-3.0
+    """,
+    """
+    # id
+    installable_not_installed
+
+    # installed
+
+    # installable
+    foo-3.0
+    foo-4.0
+
+    # wanted
+    foo>=2.1,!=3.1,<4
+
+    # resolved
+    foo-3.0
+
+    # resolved [replace conflicting]
+    foo-3.0
+    """,
+    """
+    # id
+    not_installable
+
+    # installed
+
+    # installable
+
+    # wanted
+    foo>=2.1,!=3.1,<4
+
+    # resolved
+    DistributionNotFound
+
+    # resolved [replace conflicting]
+    DistributionNotFound
+    """,
+    """
+    # id
+    no_matching_version
+
+    # installed
+
+    # installable
+    foo-3.1
+
+    # wanted
+    foo>=2.1,!=3.1,<4
+
+    # resolved
+    DistributionNotFound
+
+    # resolved [replace conflicting]
+    DistributionNotFound
+    """,
+    """
+    # id
+    installable_with_installed_conflict
+
+    # installed
+    foo-3.1
+
+    # installable
+    foo-3.5
+
+    # wanted
+    foo>=2.1,!=3.1,<4
+
+    # resolved
+    VersionConflict
+
+    # resolved [replace conflicting]
+    foo-3.5
+    """,
+    """
+    # id
+    not_installable_with_installed_conflict
+
+    # installed
+    foo-3.1
+
+    # installable
+
+    # wanted
+    foo>=2.1,!=3.1,<4
+
+    # resolved
+    VersionConflict
+
+    # resolved [replace conflicting]
+    DistributionNotFound
+    """,
+    """
+    # id
+    installed_with_installed_require
+
+    # installed
+    foo-3.9
+    baz-0.1
+        foo>=2.1,!=3.1,<4
+
+    # installable
+
+    # wanted
+    baz
+
+    # resolved
+    foo-3.9
+    baz-0.1
+
+    # resolved [replace conflicting]
+    foo-3.9
+    baz-0.1
+    """,
+    """
+    # id
+    installed_with_conflicting_installed_require
+
+    # installed
+    foo-5
+    baz-0.1
+        foo>=2.1,!=3.1,<4
+
+    # installable
+
+    # wanted
+    baz
+
+    # resolved
+    VersionConflict
+
+    # resolved [replace conflicting]
+    DistributionNotFound
+    """,
+    """
+    # id
+    installed_with_installable_conflicting_require
+
+    # installed
+    foo-5
+    baz-0.1
+        foo>=2.1,!=3.1,<4
+
+    # installable
+    foo-2.9
+
+    # wanted
+    baz
+
+    # resolved
+    VersionConflict
+
+    # resolved [replace conflicting]
+    baz-0.1
+    foo-2.9
+    """,
+    """
+    # id
+    installed_with_installable_require
+
+    # installed
+    baz-0.1
+        foo>=2.1,!=3.1,<4
+
+    # installable
+    foo-3.9
+
+    # wanted
+    baz
+
+    # resolved
+    foo-3.9
+    baz-0.1
+
+    # resolved [replace conflicting]
+    foo-3.9
+    baz-0.1
+    """,
+    """
+    # id
+    installable_with_installed_require
+
+    # installed
+    foo-3.9
+
+    # installable
+    baz-0.1
+        foo>=2.1,!=3.1,<4
+
+    # wanted
+    baz
+
+    # resolved
+    foo-3.9
+    baz-0.1
+
+    # resolved [replace conflicting]
+    foo-3.9
+    baz-0.1
+    """,
+    """
+    # id
+    installable_with_installable_require
+
+    # installed
+
+    # installable
+    foo-3.9
+    baz-0.1
+        foo>=2.1,!=3.1,<4
+
+    # wanted
+    baz
+
+    # resolved
+    foo-3.9
+    baz-0.1
+
+    # resolved [replace conflicting]
+    foo-3.9
+    baz-0.1
+    """,
+    """
+    # id
+    installable_with_conflicting_installable_require
+
+    # installed
+    foo-5
+
+    # installable
+    foo-2.9
+    baz-0.1
+        foo>=2.1,!=3.1,<4
+
+    # wanted
+    baz
+
+    # resolved
+    VersionConflict
+
+    # resolved [replace conflicting]
+    baz-0.1
+    foo-2.9
+    """,
+    """
+    # id
+    conflicting_installables
+
+    # installed
+
+    # installable
+    foo-2.9
+    foo-5.0
+
+    # wanted
+    foo>=2.1,!=3.1,<4
+    foo>=4
+
+    # resolved
+    VersionConflict
+
+    # resolved [replace conflicting]
+    VersionConflict
+    """,
+    """
+    # id
+    installables_with_conflicting_requires
+
+    # installed
+
+    # installable
+    foo-2.9
+        dep==1.0
+    baz-5.0
+        dep==2.0
+    dep-1.0
+    dep-2.0
+
+    # wanted
+    foo
+    baz
+
+    # resolved
+    VersionConflict
+
+    # resolved [replace conflicting]
+    VersionConflict
+    """,
+    """
+    # id
+    installables_with_conflicting_nested_requires
+
+    # installed
+
+    # installable
+    foo-2.9
+        dep1
+    dep1-1.0
+        subdep<1.0
+    baz-5.0
+        dep2
+    dep2-1.0
+        subdep>1.0
+    subdep-0.9
+    subdep-1.1
+
+    # wanted
+    foo
+    baz
+
+    # resolved
+    VersionConflict
+
+    # resolved [replace conflicting]
+    VersionConflict
+    """,
+    """
+    # id
+    wanted_normalized_name_installed_canonical
+
+    # installed
+    foo.bar-3.6
+
+    # installable
+
+    # wanted
+    foo-bar==3.6
+
+    # resolved
+    foo.bar-3.6
+
+    # resolved [replace conflicting]
+    foo.bar-3.6
+    """,
+)
+def test_working_set_resolve(
+    installed_dists,
+    installable_dists,
+    requirements,
+    replace_conflicting,
+    resolved_dists_or_exception,
+):
+    ws = pkg_resources.WorkingSet([])
+    list(map(ws.add, installed_dists))
+    resolve_call = functools.partial(
+        ws.resolve,
+        requirements,
+        installer=FakeInstaller(installable_dists),
+        replace_conflicting=replace_conflicting,
+    )
+    if inspect.isclass(resolved_dists_or_exception):
+        with pytest.raises(resolved_dists_or_exception):
+            resolve_call()
+    else:
+        assert sorted(resolve_call()) == sorted(resolved_dists_or_exception)

lib/python3.11/site-packages/setuptools/__init__.py

@@ -0,0 +1,256 @@
+"""Extensions to the 'distutils' for large or complex distributions"""
+# mypy: disable_error_code=override
+# Command.reinitialize_command has an extra **kw param that distutils doesn't have
+# Can't disable on the exact line because distutils doesn't exists on Python 3.12
+# and mypy isn't aware of distutils_hack, causing distutils.core.Command to be Any,
+# and a [unused-ignore] to be raised on 3.12+
+
+from __future__ import annotations
+
+import functools
+import os
+import sys
+from abc import abstractmethod
+from collections.abc import Mapping
+from typing import TYPE_CHECKING, TypeVar, overload
+
+sys.path.extend(((vendor_path := os.path.join(os.path.dirname(os.path.dirname(__file__)), 'setuptools', '_vendor')) not in sys.path) * [vendor_path])  # fmt: skip
+# workaround for #4476
+sys.modules.pop('backports', None)
+
+import _distutils_hack.override  # noqa: F401
+
+from . import logging, monkey
+from .depends import Require
+from .discovery import PackageFinder, PEP420PackageFinder
+from .dist import Distribution
+from .extension import Extension
+from .version import __version__ as __version__
+from .warnings import SetuptoolsDeprecationWarning
+
+import distutils.core
+
+__all__ = [
+    'setup',
+    'Distribution',
+    'Command',
+    'Extension',
+    'Require',
+    'SetuptoolsDeprecationWarning',
+    'find_packages',
+    'find_namespace_packages',
+]
+
+_CommandT = TypeVar("_CommandT", bound="_Command")
+
+bootstrap_install_from = None
+
+find_packages = PackageFinder.find
+find_namespace_packages = PEP420PackageFinder.find
+
+
+def _install_setup_requires(attrs):
+    # Note: do not use `setuptools.Distribution` directly, as
+    # our PEP 517 backend patch `distutils.core.Distribution`.
+    class MinimalDistribution(distutils.core.Distribution):
+        """
+        A minimal version of a distribution for supporting the
+        fetch_build_eggs interface.
+        """
+
+        def __init__(self, attrs: Mapping[str, object]) -> None:
+            _incl = 'dependency_links', 'setup_requires'
+            filtered = {k: attrs[k] for k in set(_incl) & set(attrs)}
+            super().__init__(filtered)
+            # Prevent accidentally triggering discovery with incomplete set of attrs
+            self.set_defaults._disable()
+
+        def _get_project_config_files(self, filenames=None):
+            """Ignore ``pyproject.toml``, they are not related to setup_requires"""
+            try:
+                cfg, _toml = super()._split_standard_project_metadata(filenames)
+            except Exception:
+                return filenames, ()
+            return cfg, ()
+
+        def finalize_options(self):
+            """
+            Disable finalize_options to avoid building the working set.
+            Ref #2158.
+            """
+
+    dist = MinimalDistribution(attrs)
+
+    # Honor setup.cfg's options.
+    dist.parse_config_files(ignore_option_errors=True)
+    if dist.setup_requires:
+        _fetch_build_eggs(dist)
+
+
+def _fetch_build_eggs(dist: Distribution):
+    try:
+        dist.fetch_build_eggs(dist.setup_requires)
+    except Exception as ex:
+        msg = """
+        It is possible a package already installed in your system
+        contains an version that is invalid according to PEP 440.
+        You can try `pip install --use-pep517` as a workaround for this problem,
+        or rely on a new virtual environment.
+
+        If the problem refers to a package that is not installed yet,
+        please contact that package's maintainers or distributors.
+        """
+        if "InvalidVersion" in ex.__class__.__name__:
+            if hasattr(ex, "add_note"):
+                ex.add_note(msg)  # PEP 678
+            else:
+                dist.announce(f"\n{msg}\n")
+        raise
+
+
+def setup(**attrs) -> Distribution:
+    logging.configure()
+    # Make sure we have any requirements needed to interpret 'attrs'.
+    _install_setup_requires(attrs)
+    # Override return type of distutils.core.Distribution with setuptools.dist.Distribution
+    # (implicitly implemented via `setuptools.monkey.patch_all`).
+    return distutils.core.setup(**attrs)  # type: ignore[return-value]
+
+
+setup.__doc__ = distutils.core.setup.__doc__
+
+if TYPE_CHECKING:
+    # Work around a mypy issue where type[T] can't be used as a base: https://github.com/python/mypy/issues/10962
+    from distutils.core import Command as _Command
+else:
+    _Command = monkey.get_unpatched(distutils.core.Command)
+
+
+class Command(_Command):
+    """
+    Setuptools internal actions are organized using a *command design pattern*.
+    This means that each action (or group of closely related actions) executed during
+    the build should be implemented as a ``Command`` subclass.
+
+    These commands are abstractions and do not necessarily correspond to a command that
+    can (or should) be executed via a terminal, in a CLI fashion (although historically
+    they would).
+
+    When creating a new command from scratch, custom defined classes **SHOULD** inherit
+    from ``setuptools.Command`` and implement a few mandatory methods.
+    Between these mandatory methods, are listed:
+    :meth:`initialize_options`, :meth:`finalize_options` and :meth:`run`.
+
+    A useful analogy for command classes is to think of them as subroutines with local
+    variables called "options".  The options are "declared" in :meth:`initialize_options`
+    and "defined" (given their final values, aka "finalized") in :meth:`finalize_options`,
+    both of which must be defined by every command class. The "body" of the subroutine,
+    (where it does all the work) is the :meth:`run` method.
+    Between :meth:`initialize_options` and :meth:`finalize_options`, ``setuptools`` may set
+    the values for options/attributes based on user's input (or circumstance),
+    which means that the implementation should be careful to not overwrite values in
+    :meth:`finalize_options` unless necessary.
+
+    Please note that other commands (or other parts of setuptools) may also overwrite
+    the values of the command's options/attributes multiple times during the build
+    process.
+    Therefore it is important to consistently implement :meth:`initialize_options` and
+    :meth:`finalize_options`. For example, all derived attributes (or attributes that
+    depend on the value of other attributes) **SHOULD** be recomputed in
+    :meth:`finalize_options`.
+
+    When overwriting existing commands, custom defined classes **MUST** abide by the
+    same APIs implemented by the original class. They also **SHOULD** inherit from the
+    original class.
+    """
+
+    command_consumes_arguments = False
+    distribution: Distribution  # override distutils.dist.Distribution with setuptools.dist.Distribution
+
+    dry_run = False  # type: ignore[assignment] # pyright: ignore[reportAssignmentType] (until #4689; see #4872)
+    """
+    For compatibility with vendored bdist_wheel.
+    https://github.com/pypa/setuptools/pull/4872/files#r1986395142
+    """
+
+    def __init__(self, dist: Distribution, **kw) -> None:
+        """
+        Construct the command for dist, updating
+        vars(self) with any keyword parameters.
+        """
+        super().__init__(dist)
+        vars(self).update(kw)
+
+    @overload
+    def reinitialize_command(
+        self, command: str, reinit_subcommands: bool = False, **kw
+    ) -> Command: ...  # override distutils.cmd.Command with setuptools.Command
+    @overload
+    def reinitialize_command(
+        self, command: _CommandT, reinit_subcommands: bool = False, **kw
+    ) -> _CommandT: ...
+    def reinitialize_command(
+        self, command: str | _Command, reinit_subcommands: bool = False, **kw
+    ) -> Command | _Command:
+        cmd = _Command.reinitialize_command(self, command, reinit_subcommands)
+        vars(cmd).update(kw)
+        return cmd  # pyright: ignore[reportReturnType] # pypa/distutils#307
+
+    @abstractmethod
+    def initialize_options(self) -> None:
+        """
+        Set or (reset) all options/attributes/caches used by the command
+        to their default values. Note that these values may be overwritten during
+        the build.
+        """
+        raise NotImplementedError
+
+    @abstractmethod
+    def finalize_options(self) -> None:
+        """
+        Set final values for all options/attributes used by the command.
+        Most of the time, each option/attribute/cache should only be set if it does not
+        have any value yet (e.g. ``if self.attr is None: self.attr = val``).
+        """
+        raise NotImplementedError
+
+    @abstractmethod
+    def run(self) -> None:
+        """
+        Execute the actions intended by the command.
+        (Side effects **SHOULD** only take place when :meth:`run` is executed,
+        for example, creating new files or writing to the terminal output).
+        """
+        raise NotImplementedError
+
+
+def _find_all_simple(path):
+    """
+    Find all files under 'path'
+    """
+    results = (
+        os.path.join(base, file)
+        for base, dirs, files in os.walk(path, followlinks=True)
+        for file in files
+    )
+    return filter(os.path.isfile, results)
+
+
+def findall(dir=os.curdir):
+    """
+    Find all files under 'dir' and return the list of full filenames.
+    Unless dir is '.', return full filenames with dir prepended.
+    """
+    files = _find_all_simple(dir)
+    if dir == os.curdir:
+        make_rel = functools.partial(os.path.relpath, start=dir)
+        files = map(make_rel, files)
+    return list(files)
+
+
+class sic(str):
+    """Treat this string as-is (https://en.wikipedia.org/wiki/Sic)"""
+
+
+# Apply monkey patches
+monkey.patch_all()

lib/python3.11/site-packages/setuptools/_core_metadata.py

@@ -0,0 +1,337 @@
+"""
+Handling of Core Metadata for Python packages (including reading and writing).
+
+See: https://packaging.python.org/en/latest/specifications/core-metadata/
+"""
+
+from __future__ import annotations
+
+import os
+import stat
+import textwrap
+from email import message_from_file
+from email.message import Message
+from tempfile import NamedTemporaryFile
+
+from packaging.markers import Marker
+from packaging.requirements import Requirement
+from packaging.utils import canonicalize_name, canonicalize_version
+from packaging.version import Version
+
+from . import _normalization, _reqs
+from ._static import is_static
+from .warnings import SetuptoolsDeprecationWarning
+
+from distutils.util import rfc822_escape
+
+
+def get_metadata_version(self):
+    mv = getattr(self, 'metadata_version', None)
+    if mv is None:
+        mv = Version('2.4')
+        self.metadata_version = mv
+    return mv
+
+
+def rfc822_unescape(content: str) -> str:
+    """Reverse RFC-822 escaping by removing leading whitespaces from content."""
+    lines = content.splitlines()
+    if len(lines) == 1:
+        return lines[0].lstrip()
+    return '\n'.join((lines[0].lstrip(), textwrap.dedent('\n'.join(lines[1:]))))
+
+
+def _read_field_from_msg(msg: Message, field: str) -> str | None:
+    """Read Message header field."""
+    value = msg[field]
+    if value == 'UNKNOWN':
+        return None
+    return value
+
+
+def _read_field_unescaped_from_msg(msg: Message, field: str) -> str | None:
+    """Read Message header field and apply rfc822_unescape."""
+    value = _read_field_from_msg(msg, field)
+    if value is None:
+        return value
+    return rfc822_unescape(value)
+
+
+def _read_list_from_msg(msg: Message, field: str) -> list[str] | None:
+    """Read Message header field and return all results as list."""
+    values = msg.get_all(field, None)
+    if values == []:
+        return None
+    return values
+
+
+def _read_payload_from_msg(msg: Message) -> str | None:
+    value = str(msg.get_payload()).strip()
+    if value == 'UNKNOWN' or not value:
+        return None
+    return value
+
+
+def read_pkg_file(self, file):
+    """Reads the metadata values from a file object."""
+    msg = message_from_file(file)
+
+    self.metadata_version = Version(msg['metadata-version'])
+    self.name = _read_field_from_msg(msg, 'name')
+    self.version = _read_field_from_msg(msg, 'version')
+    self.description = _read_field_from_msg(msg, 'summary')
+    # we are filling author only.
+    self.author = _read_field_from_msg(msg, 'author')
+    self.maintainer = None
+    self.author_email = _read_field_from_msg(msg, 'author-email')
+    self.maintainer_email = None
+    self.url = _read_field_from_msg(msg, 'home-page')
+    self.download_url = _read_field_from_msg(msg, 'download-url')
+    self.license = _read_field_unescaped_from_msg(msg, 'license')
+    self.license_expression = _read_field_unescaped_from_msg(msg, 'license-expression')
+
+    self.long_description = _read_field_unescaped_from_msg(msg, 'description')
+    if self.long_description is None and self.metadata_version >= Version('2.1'):
+        self.long_description = _read_payload_from_msg(msg)
+    self.description = _read_field_from_msg(msg, 'summary')
+
+    if 'keywords' in msg:
+        self.keywords = _read_field_from_msg(msg, 'keywords').split(',')
+
+    self.platforms = _read_list_from_msg(msg, 'platform')
+    self.classifiers = _read_list_from_msg(msg, 'classifier')
+
+    # PEP 314 - these fields only exist in 1.1
+    if self.metadata_version == Version('1.1'):
+        self.requires = _read_list_from_msg(msg, 'requires')
+        self.provides = _read_list_from_msg(msg, 'provides')
+        self.obsoletes = _read_list_from_msg(msg, 'obsoletes')
+    else:
+        self.requires = None
+        self.provides = None
+        self.obsoletes = None
+
+    self.license_files = _read_list_from_msg(msg, 'license-file')
+
+
+def single_line(val):
+    """
+    Quick and dirty validation for Summary pypa/setuptools#1390.
+    """
+    if '\n' in val:
+        # TODO: Replace with `raise ValueError("newlines not allowed")`
+        # after reviewing #2893.
+        msg = "newlines are not allowed in `summary` and will break in the future"
+        SetuptoolsDeprecationWarning.emit("Invalid config.", msg)
+        # due_date is undefined. Controversial change, there was a lot of push back.
+        val = val.strip().split('\n')[0]
+    return val
+
+
+def write_pkg_info(self, base_dir):
+    """Write the PKG-INFO file into the release tree."""
+    temp = ""
+    final = os.path.join(base_dir, 'PKG-INFO')
+    try:
+        # Use a temporary file while writing to avoid race conditions
+        # (e.g. `importlib.metadata` reading `.egg-info/PKG-INFO`):
+        with NamedTemporaryFile("w", encoding="utf-8", dir=base_dir, delete=False) as f:
+            temp = f.name
+            self.write_pkg_file(f)
+        permissions = stat.S_IMODE(os.lstat(temp).st_mode)
+        os.chmod(temp, permissions | stat.S_IRGRP | stat.S_IROTH)
+        os.replace(temp, final)  # atomic operation.
+    finally:
+        if temp and os.path.exists(temp):
+            os.remove(temp)
+
+
+# Based on Python 3.5 version
+def write_pkg_file(self, file):  # noqa: C901  # is too complex (14)  # FIXME
+    """Write the PKG-INFO format data to a file object."""
+    version = self.get_metadata_version()
+
+    def write_field(key, value):
+        file.write(f"{key}: {value}\n")
+
+    write_field('Metadata-Version', str(version))
+    write_field('Name', self.get_name())
+    write_field('Version', self.get_version())
+
+    summary = self.get_description()
+    if summary:
+        write_field('Summary', single_line(summary))
+
+    optional_fields = (
+        ('Home-page', 'url'),
+        ('Download-URL', 'download_url'),
+        ('Author', 'author'),
+        ('Author-email', 'author_email'),
+        ('Maintainer', 'maintainer'),
+        ('Maintainer-email', 'maintainer_email'),
+    )
+
+    for field, attr in optional_fields:
+        attr_val = getattr(self, attr, None)
+        if attr_val is not None:
+            write_field(field, attr_val)
+
+    if license_expression := self.license_expression:
+        write_field('License-Expression', license_expression)
+    elif license := self.get_license():
+        write_field('License', rfc822_escape(license))
+
+    for label, url in self.project_urls.items():
+        write_field('Project-URL', f'{label}, {url}')
+
+    keywords = ','.join(self.get_keywords())
+    if keywords:
+        write_field('Keywords', keywords)
+
+    platforms = self.get_platforms() or []
+    for platform in platforms:
+        write_field('Platform', platform)
+
+    self._write_list(file, 'Classifier', self.get_classifiers())
+
+    # PEP 314
+    self._write_list(file, 'Requires', self.get_requires())
+    self._write_list(file, 'Provides', self.get_provides())
+    self._write_list(file, 'Obsoletes', self.get_obsoletes())
+
+    # Setuptools specific for PEP 345
+    if hasattr(self, 'python_requires'):
+        write_field('Requires-Python', self.python_requires)
+
+    # PEP 566
+    if self.long_description_content_type:
+        write_field('Description-Content-Type', self.long_description_content_type)
+
+    safe_license_files = map(_safe_license_file, self.license_files or [])
+    self._write_list(file, 'License-File', safe_license_files)
+    _write_requirements(self, file)
+
+    for field, attr in _POSSIBLE_DYNAMIC_FIELDS.items():
+        if (val := getattr(self, attr, None)) and not is_static(val):
+            write_field('Dynamic', field)
+
+    long_description = self.get_long_description()
+    if long_description:
+        file.write(f"\n{long_description}")
+        if not long_description.endswith("\n"):
+            file.write("\n")
+
+
+def _write_requirements(self, file):
+    for req in _reqs.parse(self.install_requires):
+        file.write(f"Requires-Dist: {req}\n")
+
+    processed_extras = {}
+    for augmented_extra, reqs in self.extras_require.items():
+        # Historically, setuptools allows "augmented extras": `<extra>:<condition>`
+        unsafe_extra, _, condition = augmented_extra.partition(":")
+        unsafe_extra = unsafe_extra.strip()
+        extra = _normalization.safe_extra(unsafe_extra)
+
+        if extra:
+            _write_provides_extra(file, processed_extras, extra, unsafe_extra)
+        for req in _reqs.parse_strings(reqs):
+            r = _include_extra(req, extra, condition.strip())
+            file.write(f"Requires-Dist: {r}\n")
+
+    return processed_extras
+
+
+def _include_extra(req: str, extra: str, condition: str) -> Requirement:
+    r = Requirement(req)  # create a fresh object that can be modified
+    parts = (
+        f"({r.marker})" if r.marker else None,
+        f"({condition})" if condition else None,
+        f"extra == {extra!r}" if extra else None,
+    )
+    r.marker = Marker(" and ".join(x for x in parts if x))
+    return r
+
+
+def _write_provides_extra(file, processed_extras, safe, unsafe):
+    previous = processed_extras.get(safe)
+    if previous == unsafe:
+        SetuptoolsDeprecationWarning.emit(
+            'Ambiguity during "extra" normalization for dependencies.',
+            f"""
+            {previous!r} and {unsafe!r} normalize to the same value:\n
+                {safe!r}\n
+            In future versions, setuptools might halt the build process.
+            """,
+            see_url="https://peps.python.org/pep-0685/",
+        )
+    else:
+        processed_extras[safe] = unsafe
+        file.write(f"Provides-Extra: {safe}\n")
+
+
+# from pypa/distutils#244; needed only until that logic is always available
+def get_fullname(self):
+    return _distribution_fullname(self.get_name(), self.get_version())
+
+
+def _distribution_fullname(name: str, version: str) -> str:
+    """
+    >>> _distribution_fullname('setup.tools', '1.0-2')
+    'setup_tools-1.0.post2'
+    >>> _distribution_fullname('setup-tools', '1.2post2')
+    'setup_tools-1.2.post2'
+    >>> _distribution_fullname('setup-tools', '1.0-r2')
+    'setup_tools-1.0.post2'
+    >>> _distribution_fullname('setup.tools', '1.0.post')
+    'setup_tools-1.0.post0'
+    >>> _distribution_fullname('setup.tools', '1.0+ubuntu-1')
+    'setup_tools-1.0+ubuntu.1'
+    """
+    return "{}-{}".format(
+        canonicalize_name(name).replace('-', '_'),
+        canonicalize_version(version, strip_trailing_zero=False),
+    )
+
+
+def _safe_license_file(file):
+    # XXX: Do we need this after the deprecation discussed in #4892, #4896??
+    normalized = os.path.normpath(file).replace(os.sep, "/")
+    if "../" in normalized:
+        return os.path.basename(normalized)  # Temporarily restore pre PEP639 behaviour
+    return normalized
+
+
+_POSSIBLE_DYNAMIC_FIELDS = {
+    # Core Metadata Field x related Distribution attribute
+    "author": "author",
+    "author-email": "author_email",
+    "classifier": "classifiers",
+    "description": "long_description",
+    "description-content-type": "long_description_content_type",
+    "download-url": "download_url",
+    "home-page": "url",
+    "keywords": "keywords",
+    "license": "license",
+    # XXX: License-File is complicated because the user gives globs that are expanded
+    #      during the build. Without special handling it is likely always
+    #      marked as Dynamic, which is an acceptable outcome according to:
+    #      https://github.com/pypa/setuptools/issues/4629#issuecomment-2331233677
+    "license-file": "license_files",
+    "license-expression": "license_expression",  # PEP 639
+    "maintainer": "maintainer",
+    "maintainer-email": "maintainer_email",
+    "obsoletes": "obsoletes",
+    # "obsoletes-dist": "obsoletes_dist",  # NOT USED
+    "platform": "platforms",
+    "project-url": "project_urls",
+    "provides": "provides",
+    # "provides-dist": "provides_dist",  # NOT USED
+    "provides-extra": "extras_require",
+    "requires": "requires",
+    "requires-dist": "install_requires",
+    # "requires-external": "requires_external",  # NOT USED
+    "requires-python": "python_requires",
+    "summary": "description",
+    # "supported-platform": "supported_platforms",  # NOT USED
+}

lib/python3.11/site-packages/setuptools/_discovery.py

@@ -0,0 +1,33 @@
+import functools
+import operator
+
+import packaging.requirements
+
+
+# from coherent.build.discovery
+def extras_from_dep(dep):
+    try:
+        markers = packaging.requirements.Requirement(dep).marker._markers
+    except AttributeError:
+        markers = ()
+    return set(
+        marker[2].value
+        for marker in markers
+        if isinstance(marker, tuple) and marker[0].value == 'extra'
+    )
+
+
+def extras_from_deps(deps):
+    """
+    >>> extras_from_deps(['requests'])
+    set()
+    >>> extras_from_deps(['pytest; extra == "test"'])
+    {'test'}
+    >>> sorted(extras_from_deps([
+    ...     'requests',
+    ...     'pytest; extra == "test"',
+    ...     'pytest-cov; extra == "test"',
+    ...     'sphinx; extra=="doc"']))
+    ['doc', 'test']
+    """
+    return functools.reduce(operator.or_, map(extras_from_dep, deps), set())

lib/python3.11/site-packages/setuptools/_distutils/__init__.py

@@ -0,0 +1,14 @@
+import importlib
+import sys
+
+__version__, _, _ = sys.version.partition(' ')
+
+
+try:
+    # Allow Debian and pkgsrc (only) to customize system
+    # behavior. Ref pypa/distutils#2 and pypa/distutils#16.
+    # This hook is deprecated and no other environments
+    # should use it.
+    importlib.import_module('_distutils_system_mod')
+except ImportError:
+    pass

lib/python3.11/site-packages/setuptools/_distutils/_log.py

@@ -0,0 +1,3 @@
+import logging
+
+log = logging.getLogger()

lib/python3.11/site-packages/setuptools/_distutils/_macos_compat.py

@@ -0,0 +1,12 @@
+import importlib
+import sys
+
+
+def bypass_compiler_fixup(cmd, args):
+    return cmd
+
+
+if sys.platform == 'darwin':
+    compiler_fixup = importlib.import_module('_osx_support').compiler_fixup
+else:
+    compiler_fixup = bypass_compiler_fixup

lib/python3.11/site-packages/setuptools/_distutils/_modified.py

@@ -0,0 +1,95 @@
+"""Timestamp comparison of files and groups of files."""
+
+from __future__ import annotations
+
+import functools
+import os.path
+from collections.abc import Callable, Iterable
+from typing import Literal, TypeVar
+
+from jaraco.functools import splat
+
+from .compat.py39 import zip_strict
+from .errors import DistutilsFileError
+
+_SourcesT = TypeVar(
+    "_SourcesT", bound="str | bytes | os.PathLike[str] | os.PathLike[bytes]"
+)
+_TargetsT = TypeVar(
+    "_TargetsT", bound="str | bytes | os.PathLike[str] | os.PathLike[bytes]"
+)
+
+
+def _newer(source, target):
+    return not os.path.exists(target) or (
+        os.path.getmtime(source) > os.path.getmtime(target)
+    )
+
+
+def newer(
+    source: str | bytes | os.PathLike[str] | os.PathLike[bytes],
+    target: str | bytes | os.PathLike[str] | os.PathLike[bytes],
+) -> bool:
+    """
+    Is source modified more recently than target.
+
+    Returns True if 'source' is modified more recently than
+    'target' or if 'target' does not exist.
+
+    Raises DistutilsFileError if 'source' does not exist.
+    """
+    if not os.path.exists(source):
+        raise DistutilsFileError(f"file {os.path.abspath(source)!r} does not exist")
+
+    return _newer(source, target)
+
+
+def newer_pairwise(
+    sources: Iterable[_SourcesT],
+    targets: Iterable[_TargetsT],
+    newer: Callable[[_SourcesT, _TargetsT], bool] = newer,
+) -> tuple[list[_SourcesT], list[_TargetsT]]:
+    """
+    Filter filenames where sources are newer than targets.
+
+    Walk two filename iterables in parallel, testing if each source is newer
+    than its corresponding target.  Returns a pair of lists (sources,
+    targets) where source is newer than target, according to the semantics
+    of 'newer()'.
+    """
+    newer_pairs = filter(splat(newer), zip_strict(sources, targets))
+    return tuple(map(list, zip(*newer_pairs))) or ([], [])
+
+
+def newer_group(
+    sources: Iterable[str | bytes | os.PathLike[str] | os.PathLike[bytes]],
+    target: str | bytes | os.PathLike[str] | os.PathLike[bytes],
+    missing: Literal["error", "ignore", "newer"] = "error",
+) -> bool:
+    """
+    Is target out-of-date with respect to any file in sources.
+
+    Return True if 'target' is out-of-date with respect to any file
+    listed in 'sources'. In other words, if 'target' exists and is newer
+    than every file in 'sources', return False; otherwise return True.
+    ``missing`` controls how to handle a missing source file:
+
+    - error (default): allow the ``stat()`` call to fail.
+    - ignore: silently disregard any missing source files.
+    - newer: treat missing source files as "target out of date". This
+      mode is handy in "dry-run" mode: it will pretend to carry out
+      commands that wouldn't work because inputs are missing, but
+      that doesn't matter because dry-run won't run the commands.
+    """
+
+    def missing_as_newer(source):
+        return missing == 'newer' and not os.path.exists(source)
+
+    ignored = os.path.exists if missing == 'ignore' else None
+    return not os.path.exists(target) or any(
+        missing_as_newer(source) or _newer(source, target)
+        for source in filter(ignored, sources)
+    )
+
+
+newer_pairwise_group = functools.partial(newer_pairwise, newer=newer_group)

lib/python3.11/site-packages/setuptools/_distutils/_msvccompiler.py

@@ -0,0 +1,16 @@
+import warnings
+
+from .compilers.C import msvc
+
+__all__ = ["MSVCCompiler"]
+
+MSVCCompiler = msvc.Compiler
+
+
+def __getattr__(name):
+    if name == '_get_vc_env':
+        warnings.warn(
+            "_get_vc_env is private; find an alternative (pypa/distutils#340)"
+        )
+        return msvc._get_vc_env
+    raise AttributeError(name)

lib/python3.11/site-packages/setuptools/_distutils/archive_util.py

@@ -0,0 +1,284 @@
+"""distutils.archive_util
+
+Utility functions for creating archive files (tarballs, zip files,
+that sort of thing)."""
+
+from __future__ import annotations
+
+import os
+from typing import Literal, overload
+
+try:
+    import zipfile
+except ImportError:
+    zipfile = None
+
+
+from ._log import log
+from .dir_util import mkpath
+from .errors import DistutilsExecError
+from .spawn import spawn
+
+try:
+    from pwd import getpwnam
+except ImportError:
+    getpwnam = None
+
+try:
+    from grp import getgrnam
+except ImportError:
+    getgrnam = None
+
+
+def _get_gid(name):
+    """Returns a gid, given a group name."""
+    if getgrnam is None or name is None:
+        return None
+    try:
+        result = getgrnam(name)
+    except KeyError:
+        result = None
+    if result is not None:
+        return result[2]
+    return None
+
+
+def _get_uid(name):
+    """Returns an uid, given a user name."""
+    if getpwnam is None or name is None:
+        return None
+    try:
+        result = getpwnam(name)
+    except KeyError:
+        result = None
+    if result is not None:
+        return result[2]
+    return None
+
+
+def make_tarball(
+    base_name: str,
+    base_dir: str | os.PathLike[str],
+    compress: Literal["gzip", "bzip2", "xz"] | None = "gzip",
+    verbose: bool = False,
+    owner: str | None = None,
+    group: str | None = None,
+) -> str:
+    """Create a (possibly compressed) tar file from all the files under
+    'base_dir'.
+
+    'compress' must be "gzip" (the default), "bzip2", "xz", or None.
+
+    'owner' and 'group' can be used to define an owner and a group for the
+    archive that is being built. If not provided, the current owner and group
+    will be used.
+
+    The output tar file will be named 'base_dir' +  ".tar", possibly plus
+    the appropriate compression extension (".gz", ".bz2", ".xz" or ".Z").
+
+    Returns the output filename.
+    """
+    tar_compression = {
+        'gzip': 'gz',
+        'bzip2': 'bz2',
+        'xz': 'xz',
+        None: '',
+    }
+    compress_ext = {'gzip': '.gz', 'bzip2': '.bz2', 'xz': '.xz'}
+
+    # flags for compression program, each element of list will be an argument
+    if compress is not None and compress not in compress_ext.keys():
+        raise ValueError(
+            "bad value for 'compress': must be None, 'gzip', 'bzip2', 'xz'"
+        )
+
+    archive_name = base_name + '.tar'
+    archive_name += compress_ext.get(compress, '')
+
+    mkpath(os.path.dirname(archive_name))
+
+    # creating the tarball
+    import tarfile  # late import so Python build itself doesn't break
+
+    log.info('Creating tar archive')
+
+    uid = _get_uid(owner)
+    gid = _get_gid(group)
+
+    def _set_uid_gid(tarinfo):
+        if gid is not None:
+            tarinfo.gid = gid
+            tarinfo.gname = group
+        if uid is not None:
+            tarinfo.uid = uid
+            tarinfo.uname = owner
+        return tarinfo
+
+    tar = tarfile.open(archive_name, f'w|{tar_compression[compress]}')
+    try:
+        tar.add(base_dir, filter=_set_uid_gid)
+    finally:
+        tar.close()
+
+    return archive_name
+
+
+def make_zipfile(
+    base_name: str,
+    base_dir: str | os.PathLike[str],
+    verbose: bool = False,
+) -> str:
+    """Create a zip file from all the files under 'base_dir'.
+
+    The output zip file will be named 'base_name' + ".zip".  Uses either the
+    "zipfile" Python module (if available) or the InfoZIP "zip" utility
+    (if installed and found on the default search path).  If neither tool is
+    available, raises DistutilsExecError.  Returns the name of the output zip
+    file.
+    """
+    zip_filename = base_name + ".zip"
+    mkpath(os.path.dirname(zip_filename))
+
+    # If zipfile module is not available, try spawning an external
+    # 'zip' command.
+    if zipfile is None:
+        if verbose:
+            zipoptions = "-r"
+        else:
+            zipoptions = "-rq"
+
+        try:
+            spawn(["zip", zipoptions, zip_filename, base_dir])
+        except DistutilsExecError:
+            # XXX really should distinguish between "couldn't find
+            # external 'zip' command" and "zip failed".
+            raise DistutilsExecError(
+                f"unable to create zip file '{zip_filename}': "
+                "could neither import the 'zipfile' module nor "
+                "find a standalone zip utility"
+            )
+
+    else:
+        log.info("creating '%s' and adding '%s' to it", zip_filename, base_dir)
+
+        try:
+            zip = zipfile.ZipFile(zip_filename, "w", compression=zipfile.ZIP_DEFLATED)
+        except RuntimeError:
+            zip = zipfile.ZipFile(zip_filename, "w", compression=zipfile.ZIP_STORED)
+
+        with zip:
+            if base_dir != os.curdir:
+                path = os.path.normpath(os.path.join(base_dir, ''))
+                zip.write(path, path)
+                log.info("adding '%s'", path)
+            for dirpath, dirnames, filenames in os.walk(base_dir):
+                for name in dirnames:
+                    path = os.path.normpath(os.path.join(dirpath, name, ''))
+                    zip.write(path, path)
+                    log.info("adding '%s'", path)
+                for name in filenames:
+                    path = os.path.normpath(os.path.join(dirpath, name))
+                    if os.path.isfile(path):
+                        zip.write(path, path)
+                        log.info("adding '%s'", path)
+
+    return zip_filename
+
+
+ARCHIVE_FORMATS = {
+    'gztar': (make_tarball, [('compress', 'gzip')], "gzip'ed tar-file"),
+    'bztar': (make_tarball, [('compress', 'bzip2')], "bzip2'ed tar-file"),
+    'xztar': (make_tarball, [('compress', 'xz')], "xz'ed tar-file"),
+    'ztar': (make_tarball, [('compress', 'compress')], "compressed tar file"),
+    'tar': (make_tarball, [('compress', None)], "uncompressed tar file"),
+    'zip': (make_zipfile, [], "ZIP file"),
+}
+
+
+def check_archive_formats(formats):
+    """Returns the first format from the 'format' list that is unknown.
+
+    If all formats are known, returns None
+    """
+    for format in formats:
+        if format not in ARCHIVE_FORMATS:
+            return format
+    return None
+
+
+@overload
+def make_archive(
+    base_name: str,
+    format: str,
+    root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes] | None = None,
+    base_dir: str | None = None,
+    verbose: bool = False,
+    owner: str | None = None,
+    group: str | None = None,
+) -> str: ...
+@overload
+def make_archive(
+    base_name: str | os.PathLike[str],
+    format: str,
+    root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes],
+    base_dir: str | None = None,
+    verbose: bool = False,
+    owner: str | None = None,
+    group: str | None = None,
+) -> str: ...
+def make_archive(
+    base_name: str | os.PathLike[str],
+    format: str,
+    root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes] | None = None,
+    base_dir: str | None = None,
+    verbose: bool = False,
+    owner: str | None = None,
+    group: str | None = None,
+) -> str:
+    """Create an archive file (eg. zip or tar).
+
+    'base_name' is the name of the file to create, minus any format-specific
+    extension; 'format' is the archive format: one of "zip", "tar", "gztar",
+    "bztar", "xztar", or "ztar".
+
+    'root_dir' is a directory that will be the root directory of the
+    archive; ie. we typically chdir into 'root_dir' before creating the
+    archive.  'base_dir' is the directory where we start archiving from;
+    ie. 'base_dir' will be the common prefix of all files and
+    directories in the archive.  'root_dir' and 'base_dir' both default
+    to the current directory.  Returns the name of the archive file.
+
+    'owner' and 'group' are used when creating a tar archive. By default,
+    uses the current owner and group.
+    """
+    save_cwd = os.getcwd()
+    if root_dir is not None:
+        log.debug("changing into '%s'", root_dir)
+        base_name = os.path.abspath(base_name)
+        os.chdir(root_dir)
+
+    if base_dir is None:
+        base_dir = os.curdir
+
+    kwargs: dict[str, bool | None] = {}
+
+    try:
+        format_info = ARCHIVE_FORMATS[format]
+    except KeyError:
+        raise ValueError(f"unknown archive format '{format}'")
+
+    func = format_info[0]
+    kwargs.update(format_info[1])
+
+    if format != 'zip':
+        kwargs['owner'] = owner
+        kwargs['group'] = group
+
+    try:
+        filename = func(base_name, base_dir, **kwargs)
+    finally:
+        if root_dir is not None:
+            log.debug("changing back to '%s'", save_cwd)
+            os.chdir(save_cwd)
+
+    return filename

lib/python3.11/site-packages/setuptools/_distutils/ccompiler.py

@@ -0,0 +1,26 @@
+from .compat.numpy import (  # noqa: F401
+    _default_compilers,
+    compiler_class,
+)
+from .compilers.C import base
+from .compilers.C.base import (
+    gen_lib_options,
+    gen_preprocess_options,
+    get_default_compiler,
+    new_compiler,
+    show_compilers,
+)
+from .compilers.C.errors import CompileError, LinkError
+
+__all__ = [
+    'CompileError',
+    'LinkError',
+    'gen_lib_options',
+    'gen_preprocess_options',
+    'get_default_compiler',
+    'new_compiler',
+    'show_compilers',
+]
+
+
+CCompiler = base.Compiler

lib/python3.11/site-packages/setuptools/_distutils/cmd.py

@@ -0,0 +1,535 @@
+"""distutils.cmd
+
+Provides the Command class, the base class for the command classes
+in the distutils.command package.
+"""
+
+from __future__ import annotations
+
+import logging
+import os
+import re
+import sys
+from abc import abstractmethod
+from collections.abc import Callable, MutableSequence
+from typing import TYPE_CHECKING, Any, ClassVar, TypeVar, overload
+
+from . import _modified, archive_util, dir_util, file_util, util
+from ._log import log
+from .errors import DistutilsOptionError
+
+if TYPE_CHECKING:
+    # type-only import because of mutual dependence between these classes
+    from distutils.dist import Distribution
+
+    from typing_extensions import TypeVarTuple, Unpack
+
+    _Ts = TypeVarTuple("_Ts")
+
+_StrPathT = TypeVar("_StrPathT", bound="str | os.PathLike[str]")
+_BytesPathT = TypeVar("_BytesPathT", bound="bytes | os.PathLike[bytes]")
+_CommandT = TypeVar("_CommandT", bound="Command")
+
+
+class Command:
+    """Abstract base class for defining command classes, the "worker bees"
+    of the Distutils.  A useful analogy for command classes is to think of
+    them as subroutines with local variables called "options".  The options
+    are "declared" in 'initialize_options()' and "defined" (given their
+    final values, aka "finalized") in 'finalize_options()', both of which
+    must be defined by every command class.  The distinction between the
+    two is necessary because option values might come from the outside
+    world (command line, config file, ...), and any options dependent on
+    other options must be computed *after* these outside influences have
+    been processed -- hence 'finalize_options()'.  The "body" of the
+    subroutine, where it does all its work based on the values of its
+    options, is the 'run()' method, which must also be implemented by every
+    command class.
+    """
+
+    # 'sub_commands' formalizes the notion of a "family" of commands,
+    # eg. "install" as the parent with sub-commands "install_lib",
+    # "install_headers", etc.  The parent of a family of commands
+    # defines 'sub_commands' as a class attribute; it's a list of
+    #    (command_name : string, predicate : unbound_method | string | None)
+    # tuples, where 'predicate' is a method of the parent command that
+    # determines whether the corresponding command is applicable in the
+    # current situation.  (Eg. we "install_headers" is only applicable if
+    # we have any C header files to install.)  If 'predicate' is None,
+    # that command is always applicable.
+    #
+    # 'sub_commands' is usually defined at the *end* of a class, because
+    # predicates can be unbound methods, so they must already have been
+    # defined.  The canonical example is the "install" command.
+    sub_commands: ClassVar[  # Any to work around variance issues
+        list[tuple[str, Callable[[Any], bool] | None]]
+    ] = []
+
+    user_options: ClassVar[
+        # Specifying both because list is invariant. Avoids mypy override assignment issues
+        list[tuple[str, str, str]] | list[tuple[str, str | None, str]]
+    ] = []
+
+    # -- Creation/initialization methods -------------------------------
+
+    def __init__(self, dist: Distribution) -> None:
+        """Create and initialize a new Command object.  Most importantly,
+        invokes the 'initialize_options()' method, which is the real
+        initializer and depends on the actual command being
+        instantiated.
+        """
+        # late import because of mutual dependence between these classes
+        from distutils.dist import Distribution
+
+        if not isinstance(dist, Distribution):
+            raise TypeError("dist must be a Distribution instance")
+        if self.__class__ is Command:
+            raise RuntimeError("Command is an abstract class")
+
+        self.distribution = dist
+        self.initialize_options()
+
+        # Per-command versions of the global flags, so that the user can
+        # customize Distutils' behaviour command-by-command and let some
+        # commands fall back on the Distribution's behaviour. None means
+        # "not defined, check self.distribution's copy".
+
+        # verbose is largely ignored, but needs to be set for
+        # backwards compatibility (I think)?
+        self.verbose = dist.verbose
+
+        # Some commands define a 'self.force' option to ignore file
+        # timestamps, but methods defined *here* assume that
+        # 'self.force' exists for all commands.  So define it here
+        # just to be safe.
+        self.force = None
+
+        # The 'help' flag is just used for command-line parsing, so
+        # none of that complicated bureaucracy is needed.
+        self.help = False
+
+        # 'finalized' records whether or not 'finalize_options()' has been
+        # called.  'finalize_options()' itself should not pay attention to
+        # this flag: it is the business of 'ensure_finalized()', which
+        # always calls 'finalize_options()', to respect/update it.
+        self.finalized = False
+
+    def ensure_finalized(self) -> None:
+        if not self.finalized:
+            self.finalize_options()
+        self.finalized = True
+
+    # Subclasses must define:
+    #   initialize_options()
+    #     provide default values for all options; may be customized by
+    #     setup script, by options from config file(s), or by command-line
+    #     options
+    #   finalize_options()
+    #     decide on the final values for all options; this is called
+    #     after all possible intervention from the outside world
+    #     (command-line, option file, etc.) has been processed
+    #   run()
+    #     run the command: do whatever it is we're here to do,
+    #     controlled by the command's various option values
+
+    @abstractmethod
+    def initialize_options(self) -> None:
+        """Set default values for all the options that this command
+        supports.  Note that these defaults may be overridden by other
+        commands, by the setup script, by config files, or by the
+        command-line.  Thus, this is not the place to code dependencies
+        between options; generally, 'initialize_options()' implementations
+        are just a bunch of "self.foo = None" assignments.
+
+        This method must be implemented by all command classes.
+        """
+        raise RuntimeError(
+            f"abstract method -- subclass {self.__class__} must override"
+        )
+
+    @abstractmethod
+    def finalize_options(self) -> None:
+        """Set final values for all the options that this command supports.
+        This is always called as late as possible, ie.  after any option
+        assignments from the command-line or from other commands have been
+        done.  Thus, this is the place to code option dependencies: if
+        'foo' depends on 'bar', then it is safe to set 'foo' from 'bar' as
+        long as 'foo' still has the same value it was assigned in
+        'initialize_options()'.
+
+        This method must be implemented by all command classes.
+        """
+        raise RuntimeError(
+            f"abstract method -- subclass {self.__class__} must override"
+        )
+
+    def dump_options(self, header=None, indent=""):
+        from distutils.fancy_getopt import longopt_xlate
+
+        if header is None:
+            header = f"command options for '{self.get_command_name()}':"
+        self.announce(indent + header, level=logging.INFO)
+        indent = indent + "  "
+        for option, _, _ in self.user_options:
+            option = option.translate(longopt_xlate)
+            if option[-1] == "=":
+                option = option[:-1]
+            value = getattr(self, option)
+            self.announce(indent + f"{option} = {value}", level=logging.INFO)
+
+    @abstractmethod
+    def run(self) -> None:
+        """A command's raison d'etre: carry out the action it exists to
+        perform, controlled by the options initialized in
+        'initialize_options()', customized by other commands, the setup
+        script, the command-line, and config files, and finalized in
+        'finalize_options()'.  All terminal output and filesystem
+        interaction should be done by 'run()'.
+
+        This method must be implemented by all command classes.
+        """
+        raise RuntimeError(
+            f"abstract method -- subclass {self.__class__} must override"
+        )
+
+    def announce(self, msg: object, level: int = logging.DEBUG) -> None:
+        log.log(level, msg)
+
+    def debug_print(self, msg: object) -> None:
+        """Print 'msg' to stdout if the global DEBUG (taken from the
+        DISTUTILS_DEBUG environment variable) flag is true.
+        """
+        from distutils.debug import DEBUG
+
+        if DEBUG:
+            print(msg)
+            sys.stdout.flush()
+
+    # -- Option validation methods -------------------------------------
+    # (these are very handy in writing the 'finalize_options()' method)
+    #
+    # NB. the general philosophy here is to ensure that a particular option
+    # value meets certain type and value constraints.  If not, we try to
+    # force it into conformance (eg. if we expect a list but have a string,
+    # split the string on comma and/or whitespace).  If we can't force the
+    # option into conformance, raise DistutilsOptionError.  Thus, command
+    # classes need do nothing more than (eg.)
+    #   self.ensure_string_list('foo')
+    # and they can be guaranteed that thereafter, self.foo will be
+    # a list of strings.
+
+    def _ensure_stringlike(self, option, what, default=None):
+        val = getattr(self, option)
+        if val is None:
+            setattr(self, option, default)
+            return default
+        elif not isinstance(val, str):
+            raise DistutilsOptionError(f"'{option}' must be a {what} (got `{val}`)")
+        return val
+
+    def ensure_string(self, option: str, default: str | None = None) -> None:
+        """Ensure that 'option' is a string; if not defined, set it to
+        'default'.
+        """
+        self._ensure_stringlike(option, "string", default)
+
+    def ensure_string_list(self, option: str) -> None:
+        r"""Ensure that 'option' is a list of strings.  If 'option' is
+        currently a string, we split it either on /,\s*/ or /\s+/, so
+        "foo bar baz", "foo,bar,baz", and "foo,   bar baz" all become
+        ["foo", "bar", "baz"].
+        """
+        val = getattr(self, option)
+        if val is None:
+            return
+        elif isinstance(val, str):
+            setattr(self, option, re.split(r',\s*|\s+', val))
+        else:
+            if isinstance(val, list):
+                ok = all(isinstance(v, str) for v in val)
+            else:
+                ok = False
+            if not ok:
+                raise DistutilsOptionError(
+                    f"'{option}' must be a list of strings (got {val!r})"
+                )
+
+    def _ensure_tested_string(self, option, tester, what, error_fmt, default=None):
+        val = self._ensure_stringlike(option, what, default)
+        if val is not None and not tester(val):
+            raise DistutilsOptionError(
+                ("error in '%s' option: " + error_fmt) % (option, val)
+            )
+
+    def ensure_filename(self, option: str) -> None:
+        """Ensure that 'option' is the name of an existing file."""
+        self._ensure_tested_string(
+            option, os.path.isfile, "filename", "'%s' does not exist or is not a file"
+        )
+
+    def ensure_dirname(self, option: str) -> None:
+        self._ensure_tested_string(
+            option,
+            os.path.isdir,
+            "directory name",
+            "'%s' does not exist or is not a directory",
+        )
+
+    # -- Convenience methods for commands ------------------------------
+
+    def get_command_name(self) -> str:
+        if hasattr(self, 'command_name'):
+            return self.command_name
+        else:
+            return self.__class__.__name__
+
+    def set_undefined_options(
+        self, src_cmd: str, *option_pairs: tuple[str, str]
+    ) -> None:
+        """Set the values of any "undefined" options from corresponding
+        option values in some other command object.  "Undefined" here means
+        "is None", which is the convention used to indicate that an option
+        has not been changed between 'initialize_options()' and
+        'finalize_options()'.  Usually called from 'finalize_options()' for
+        options that depend on some other command rather than another
+        option of the same command.  'src_cmd' is the other command from
+        which option values will be taken (a command object will be created
+        for it if necessary); the remaining arguments are
+        '(src_option,dst_option)' tuples which mean "take the value of
+        'src_option' in the 'src_cmd' command object, and copy it to
+        'dst_option' in the current command object".
+        """
+        # Option_pairs: list of (src_option, dst_option) tuples
+        src_cmd_obj = self.distribution.get_command_obj(src_cmd)
+        src_cmd_obj.ensure_finalized()
+        for src_option, dst_option in option_pairs:
+            if getattr(self, dst_option) is None:
+                setattr(self, dst_option, getattr(src_cmd_obj, src_option))
+
+    # NOTE: Because distutils is private to Setuptools and not all commands are exposed here,
+    # not every possible command is enumerated in the signature.
+    def get_finalized_command(self, command: str, create: bool = True) -> Command:
+        """Wrapper around Distribution's 'get_command_obj()' method: find
+        (create if necessary and 'create' is true) the command object for
+        'command', call its 'ensure_finalized()' method, and return the
+        finalized command object.
+        """
+        cmd_obj = self.distribution.get_command_obj(command, create)
+        cmd_obj.ensure_finalized()
+        return cmd_obj
+
+    # XXX rename to 'get_reinitialized_command()'? (should do the
+    # same in dist.py, if so)
+    @overload
+    def reinitialize_command(
+        self, command: str, reinit_subcommands: bool = False
+    ) -> Command: ...
+    @overload
+    def reinitialize_command(
+        self, command: _CommandT, reinit_subcommands: bool = False
+    ) -> _CommandT: ...
+    def reinitialize_command(
+        self, command: str | Command, reinit_subcommands=False
+    ) -> Command:
+        return self.distribution.reinitialize_command(command, reinit_subcommands)
+
+    def run_command(self, command: str) -> None:
+        """Run some other command: uses the 'run_command()' method of
+        Distribution, which creates and finalizes the command object if
+        necessary and then invokes its 'run()' method.
+        """
+        self.distribution.run_command(command)
+
+    def get_sub_commands(self) -> list[str]:
+        """Determine the sub-commands that are relevant in the current
+        distribution (ie., that need to be run).  This is based on the
+        'sub_commands' class attribute: each tuple in that list may include
+        a method that we call to determine if the subcommand needs to be
+        run for the current distribution.  Return a list of command names.
+        """
+        commands = []
+        for cmd_name, method in self.sub_commands:
+            if method is None or method(self):
+                commands.append(cmd_name)
+        return commands
+
+    # -- External world manipulation -----------------------------------
+
+    def warn(self, msg: object) -> None:
+        log.warning("warning: %s: %s\n", self.get_command_name(), msg)
+
+    def execute(
+        self,
+        func: Callable[[Unpack[_Ts]], object],
+        args: tuple[Unpack[_Ts]],
+        msg: object = None,
+        level: int = 1,
+    ) -> None:
+        util.execute(func, args, msg)
+
+    def mkpath(self, name: str, mode: int = 0o777) -> None:
+        dir_util.mkpath(name, mode)
+
+    @overload
+    def copy_file(
+        self,
+        infile: str | os.PathLike[str],
+        outfile: _StrPathT,
+        preserve_mode: bool = True,
+        preserve_times: bool = True,
+        link: str | None = None,
+        level: int = 1,
+    ) -> tuple[_StrPathT | str, bool]: ...
+    @overload
+    def copy_file(
+        self,
+        infile: bytes | os.PathLike[bytes],
+        outfile: _BytesPathT,
+        preserve_mode: bool = True,
+        preserve_times: bool = True,
+        link: str | None = None,
+        level: int = 1,
+    ) -> tuple[_BytesPathT | bytes, bool]: ...
+    def copy_file(
+        self,
+        infile: str | os.PathLike[str] | bytes | os.PathLike[bytes],
+        outfile: str | os.PathLike[str] | bytes | os.PathLike[bytes],
+        preserve_mode: bool = True,
+        preserve_times: bool = True,
+        link: str | None = None,
+        level: int = 1,
+    ) -> tuple[str | os.PathLike[str] | bytes | os.PathLike[bytes], bool]:
+        """Copy a file respecting verbose, dry-run and force flags.  (The
+        former two default to whatever is in the Distribution object, and
+        the latter defaults to false for commands that don't define it.)"""
+        return file_util.copy_file(
+            infile,
+            outfile,
+            preserve_mode,
+            preserve_times,
+            not self.force,
+            link,
+        )
+
+    def copy_tree(
+        self,
+        infile: str | os.PathLike[str],
+        outfile: str,
+        preserve_mode: bool = True,
+        preserve_times: bool = True,
+        preserve_symlinks: bool = False,
+        level: int = 1,
+    ) -> list[str]:
+        """Copy an entire directory tree respecting verbose, dry-run,
+        and force flags.
+        """
+        return dir_util.copy_tree(
+            infile,
+            outfile,
+            preserve_mode,
+            preserve_times,
+            preserve_symlinks,
+            not self.force,
+        )
+
+    @overload
+    def move_file(
+        self, src: str | os.PathLike[str], dst: _StrPathT, level: int = 1
+    ) -> _StrPathT | str: ...
+    @overload
+    def move_file(
+        self, src: bytes | os.PathLike[bytes], dst: _BytesPathT, level: int = 1
+    ) -> _BytesPathT | bytes: ...
+    def move_file(
+        self,
+        src: str | os.PathLike[str] | bytes | os.PathLike[bytes],
+        dst: str | os.PathLike[str] | bytes | os.PathLike[bytes],
+        level: int = 1,
+    ) -> str | os.PathLike[str] | bytes | os.PathLike[bytes]:
+        """Move a file respecting dry-run flag."""
+        return file_util.move_file(src, dst)
+
+    def spawn(
+        self, cmd: MutableSequence[str], search_path: bool = True, level: int = 1
+    ) -> None:
+        """Spawn an external command respecting dry-run flag."""
+        from distutils.spawn import spawn
+
+        spawn(cmd, search_path)
+
+    @overload
+    def make_archive(
+        self,
+        base_name: str,
+        format: str,
+        root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes] | None = None,
+        base_dir: str | None = None,
+        owner: str | None = None,
+        group: str | None = None,
+    ) -> str: ...
+    @overload
+    def make_archive(
+        self,
+        base_name: str | os.PathLike[str],
+        format: str,
+        root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes],
+        base_dir: str | None = None,
+        owner: str | None = None,
+        group: str | None = None,
+    ) -> str: ...
+    def make_archive(
+        self,
+        base_name: str | os.PathLike[str],
+        format: str,
+        root_dir: str | os.PathLike[str] | bytes | os.PathLike[bytes] | None = None,
+        base_dir: str | None = None,
+        owner: str | None = None,
+        group: str | None = None,
+    ) -> str:
+        return archive_util.make_archive(
+            base_name,
+            format,
+            root_dir,
+            base_dir,
+            owner=owner,
+            group=group,
+        )
+
+    def make_file(
+        self,
+        infiles: str | list[str] | tuple[str, ...],
+        outfile: str | os.PathLike[str] | bytes | os.PathLike[bytes],
+        func: Callable[[Unpack[_Ts]], object],
+        args: tuple[Unpack[_Ts]],
+        exec_msg: object = None,
+        skip_msg: object = None,
+        level: int = 1,
+    ) -> None:
+        """Special case of 'execute()' for operations that process one or
+        more input files and generate one output file.  Works just like
+        'execute()', except the operation is skipped and a different
+        message printed if 'outfile' already exists and is newer than all
+        files listed in 'infiles'.  If the command defined 'self.force',
+        and it is true, then the command is unconditionally run -- does no
+        timestamp checks.
+        """
+        if skip_msg is None:
+            skip_msg = f"skipping {outfile} (inputs unchanged)"
+
+        # Allow 'infiles' to be a single string
+        if isinstance(infiles, str):
+            infiles = (infiles,)
+        elif not isinstance(infiles, (list, tuple)):
+            raise TypeError("'infiles' must be a string, or a list or tuple of strings")
+
+        if exec_msg is None:
+            exec_msg = "generating {} from {}".format(outfile, ', '.join(infiles))
+
+        # If 'outfile' must be regenerated (either because it doesn't
+        # exist, is out-of-date, or the 'force' flag is true) then
+        # perform the action that presumably regenerates it
+        if self.force or _modified.newer_group(infiles, outfile):
+            self.execute(func, args, exec_msg, level)
+        # Otherwise, print the "skip" message
+        else:
+            log.debug(skip_msg)