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			870 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			Python
		
	
			
		
		
	
	
			870 lines
		
	
	
		
			30 KiB
		
	
	
	
		
			Python
		
	
import itertools
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import os
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import platform
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import string
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import sys
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import pytest
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from packaging.specifiers import SpecifierSet
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import pkg_resources
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from pkg_resources import (
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    Distribution,
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    EntryPoint,
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    Requirement,
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    VersionConflict,
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    WorkingSet,
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    parse_requirements,
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    parse_version,
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    safe_name,
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    safe_version,
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)
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# from Python 3.6 docs. Available from itertools on Python 3.10
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def pairwise(iterable):
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    "s -> (s0,s1), (s1,s2), (s2, s3), ..."
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    a, b = itertools.tee(iterable)
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    next(b, None)
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    return zip(a, b)
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class Metadata(pkg_resources.EmptyProvider):
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    """Mock object to return metadata as if from an on-disk distribution"""
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    def __init__(self, *pairs) -> None:
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        self.metadata = dict(pairs)
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    def has_metadata(self, name) -> bool:
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        return name in self.metadata
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    def get_metadata(self, name):
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        return self.metadata[name]
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    def get_metadata_lines(self, name):
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        return pkg_resources.yield_lines(self.get_metadata(name))
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dist_from_fn = pkg_resources.Distribution.from_filename
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class TestDistro:
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    def testCollection(self):
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        # empty path should produce no distributions
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        ad = pkg_resources.Environment([], platform=None, python=None)
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        assert list(ad) == []
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        assert ad['FooPkg'] == []
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        ad.add(dist_from_fn("FooPkg-1.3_1.egg"))
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        ad.add(dist_from_fn("FooPkg-1.4-py2.4-win32.egg"))
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        ad.add(dist_from_fn("FooPkg-1.2-py2.4.egg"))
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        # Name is in there now
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        assert ad['FooPkg']
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        # But only 1 package
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        assert list(ad) == ['foopkg']
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        # Distributions sort by version
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        expected = ['1.4', '1.3-1', '1.2']
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        assert [dist.version for dist in ad['FooPkg']] == expected
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        # Removing a distribution leaves sequence alone
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        ad.remove(ad['FooPkg'][1])
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        assert [dist.version for dist in ad['FooPkg']] == ['1.4', '1.2']
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        # And inserting adds them in order
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        ad.add(dist_from_fn("FooPkg-1.9.egg"))
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        assert [dist.version for dist in ad['FooPkg']] == ['1.9', '1.4', '1.2']
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        ws = WorkingSet([])
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        foo12 = dist_from_fn("FooPkg-1.2-py2.4.egg")
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        foo14 = dist_from_fn("FooPkg-1.4-py2.4-win32.egg")
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        (req,) = parse_requirements("FooPkg>=1.3")
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        # Nominal case: no distros on path, should yield all applicable
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        assert ad.best_match(req, ws).version == '1.9'
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        # If a matching distro is already installed, should return only that
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        ws.add(foo14)
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        assert ad.best_match(req, ws).version == '1.4'
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        # If the first matching distro is unsuitable, it's a version conflict
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        ws = WorkingSet([])
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        ws.add(foo12)
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        ws.add(foo14)
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        with pytest.raises(VersionConflict):
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            ad.best_match(req, ws)
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        # If more than one match on the path, the first one takes precedence
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        ws = WorkingSet([])
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        ws.add(foo14)
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        ws.add(foo12)
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        ws.add(foo14)
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        assert ad.best_match(req, ws).version == '1.4'
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    def checkFooPkg(self, d):
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        assert d.project_name == "FooPkg"
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        assert d.key == "foopkg"
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        assert d.version == "1.3.post1"
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        assert d.py_version == "2.4"
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        assert d.platform == "win32"
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        assert d.parsed_version == parse_version("1.3-1")
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    def testDistroBasics(self):
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        d = Distribution(
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            "/some/path",
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            project_name="FooPkg",
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            version="1.3-1",
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            py_version="2.4",
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            platform="win32",
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        )
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        self.checkFooPkg(d)
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        d = Distribution("/some/path")
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        assert d.py_version == f'{sys.version_info.major}.{sys.version_info.minor}'
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        assert d.platform is None
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    def testDistroParse(self):
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        d = dist_from_fn("FooPkg-1.3.post1-py2.4-win32.egg")
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        self.checkFooPkg(d)
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        d = dist_from_fn("FooPkg-1.3.post1-py2.4-win32.egg-info")
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        self.checkFooPkg(d)
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    def testDistroMetadata(self):
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        d = Distribution(
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            "/some/path",
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            project_name="FooPkg",
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            py_version="2.4",
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            platform="win32",
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            metadata=Metadata(('PKG-INFO', "Metadata-Version: 1.0\nVersion: 1.3-1\n")),
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        )
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        self.checkFooPkg(d)
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    def distRequires(self, txt):
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        return Distribution("/foo", metadata=Metadata(('depends.txt', txt)))
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    def checkRequires(self, dist, txt, extras=()):
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        assert list(dist.requires(extras)) == list(parse_requirements(txt))
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    def testDistroDependsSimple(self):
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        for v in "Twisted>=1.5", "Twisted>=1.5\nZConfig>=2.0":
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            self.checkRequires(self.distRequires(v), v)
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    needs_object_dir = pytest.mark.skipif(
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        not hasattr(object, '__dir__'),
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        reason='object.__dir__ necessary for self.__dir__ implementation',
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    )
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    def test_distribution_dir(self):
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        d = pkg_resources.Distribution()
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        dir(d)
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    @needs_object_dir
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    def test_distribution_dir_includes_provider_dir(self):
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        d = pkg_resources.Distribution()
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        before = d.__dir__()
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        assert 'test_attr' not in before
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        d._provider.test_attr = None
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        after = d.__dir__()
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        assert len(after) == len(before) + 1
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        assert 'test_attr' in after
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    @needs_object_dir
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    def test_distribution_dir_ignores_provider_dir_leading_underscore(self):
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        d = pkg_resources.Distribution()
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        before = d.__dir__()
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        assert '_test_attr' not in before
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        d._provider._test_attr = None
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        after = d.__dir__()
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        assert len(after) == len(before)
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        assert '_test_attr' not in after
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    def testResolve(self):
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        ad = pkg_resources.Environment([])
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        ws = WorkingSet([])
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        # Resolving no requirements -> nothing to install
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        assert list(ws.resolve([], ad)) == []
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        # Request something not in the collection -> DistributionNotFound
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        with pytest.raises(pkg_resources.DistributionNotFound):
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            ws.resolve(parse_requirements("Foo"), ad)
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        Foo = Distribution.from_filename(
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            "/foo_dir/Foo-1.2.egg",
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            metadata=Metadata(('depends.txt', "[bar]\nBaz>=2.0")),
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        )
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        ad.add(Foo)
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        ad.add(Distribution.from_filename("Foo-0.9.egg"))
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        # Request thing(s) that are available -> list to activate
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        for i in range(3):
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            targets = list(ws.resolve(parse_requirements("Foo"), ad))
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            assert targets == [Foo]
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            list(map(ws.add, targets))
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        with pytest.raises(VersionConflict):
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            ws.resolve(parse_requirements("Foo==0.9"), ad)
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        ws = WorkingSet([])  # reset
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        # Request an extra that causes an unresolved dependency for "Baz"
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        with pytest.raises(pkg_resources.DistributionNotFound):
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            ws.resolve(parse_requirements("Foo[bar]"), ad)
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        Baz = Distribution.from_filename(
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            "/foo_dir/Baz-2.1.egg", metadata=Metadata(('depends.txt', "Foo"))
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        )
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        ad.add(Baz)
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        # Activation list now includes resolved dependency
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        assert list(ws.resolve(parse_requirements("Foo[bar]"), ad)) == [Foo, Baz]
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        # Requests for conflicting versions produce VersionConflict
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        with pytest.raises(VersionConflict) as vc:
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            ws.resolve(parse_requirements("Foo==1.2\nFoo!=1.2"), ad)
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        msg = 'Foo 0.9 is installed but Foo==1.2 is required'
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        assert vc.value.report() == msg
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    def test_environment_marker_evaluation_negative(self):
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        """Environment markers are evaluated at resolution time."""
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        ad = pkg_resources.Environment([])
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        ws = WorkingSet([])
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        res = ws.resolve(parse_requirements("Foo;python_version<'2'"), ad)
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        assert list(res) == []
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    def test_environment_marker_evaluation_positive(self):
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        ad = pkg_resources.Environment([])
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        ws = WorkingSet([])
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        Foo = Distribution.from_filename("/foo_dir/Foo-1.2.dist-info")
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        ad.add(Foo)
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        res = ws.resolve(parse_requirements("Foo;python_version>='2'"), ad)
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        assert list(res) == [Foo]
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    def test_environment_marker_evaluation_called(self):
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        """
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        If one package foo requires bar without any extras,
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        markers should pass for bar without extras.
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        """
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        (parent_req,) = parse_requirements("foo")
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        (req,) = parse_requirements("bar;python_version>='2'")
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        req_extras = pkg_resources._ReqExtras({req: parent_req.extras})
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        assert req_extras.markers_pass(req)
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        (parent_req,) = parse_requirements("foo[]")
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        (req,) = parse_requirements("bar;python_version>='2'")
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        req_extras = pkg_resources._ReqExtras({req: parent_req.extras})
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        assert req_extras.markers_pass(req)
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    def test_marker_evaluation_with_extras(self):
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        """Extras are also evaluated as markers at resolution time."""
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        ad = pkg_resources.Environment([])
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        ws = WorkingSet([])
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        Foo = Distribution.from_filename(
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            "/foo_dir/Foo-1.2.dist-info",
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            metadata=Metadata((
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                "METADATA",
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                "Provides-Extra: baz\nRequires-Dist: quux; extra=='baz'",
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            )),
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        )
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        ad.add(Foo)
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        assert list(ws.resolve(parse_requirements("Foo"), ad)) == [Foo]
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        quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info")
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        ad.add(quux)
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        res = list(ws.resolve(parse_requirements("Foo[baz]"), ad))
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        assert res == [Foo, quux]
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    def test_marker_evaluation_with_extras_normlized(self):
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        """Extras are also evaluated as markers at resolution time."""
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        ad = pkg_resources.Environment([])
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        ws = WorkingSet([])
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        Foo = Distribution.from_filename(
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            "/foo_dir/Foo-1.2.dist-info",
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            metadata=Metadata((
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                "METADATA",
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                "Provides-Extra: baz-lightyear\n"
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                "Requires-Dist: quux; extra=='baz-lightyear'",
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            )),
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        )
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        ad.add(Foo)
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        assert list(ws.resolve(parse_requirements("Foo"), ad)) == [Foo]
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        quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info")
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        ad.add(quux)
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        res = list(ws.resolve(parse_requirements("Foo[baz-lightyear]"), ad))
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        assert res == [Foo, quux]
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    def test_marker_evaluation_with_multiple_extras(self):
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        ad = pkg_resources.Environment([])
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        ws = WorkingSet([])
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        Foo = Distribution.from_filename(
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            "/foo_dir/Foo-1.2.dist-info",
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            metadata=Metadata((
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                "METADATA",
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                "Provides-Extra: baz\n"
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                "Requires-Dist: quux; extra=='baz'\n"
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                "Provides-Extra: bar\n"
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                "Requires-Dist: fred; extra=='bar'\n",
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            )),
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        )
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        ad.add(Foo)
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        quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info")
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        ad.add(quux)
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        fred = Distribution.from_filename("/foo_dir/fred-0.1.dist-info")
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        ad.add(fred)
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        res = list(ws.resolve(parse_requirements("Foo[baz,bar]"), ad))
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        assert sorted(res) == [fred, quux, Foo]
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    def test_marker_evaluation_with_extras_loop(self):
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        ad = pkg_resources.Environment([])
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        ws = WorkingSet([])
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        a = Distribution.from_filename(
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            "/foo_dir/a-0.2.dist-info",
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            metadata=Metadata(("METADATA", "Requires-Dist: c[a]")),
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        )
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        b = Distribution.from_filename(
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            "/foo_dir/b-0.3.dist-info",
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            metadata=Metadata(("METADATA", "Requires-Dist: c[b]")),
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        )
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        c = Distribution.from_filename(
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            "/foo_dir/c-1.0.dist-info",
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            metadata=Metadata((
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                "METADATA",
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                "Provides-Extra: a\n"
 | 
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                "Requires-Dist: b;extra=='a'\n"
 | 
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                "Provides-Extra: b\n"
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                "Requires-Dist: foo;extra=='b'",
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						|
            )),
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						|
        )
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        foo = Distribution.from_filename("/foo_dir/foo-0.1.dist-info")
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        for dist in (a, b, c, foo):
 | 
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            ad.add(dist)
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        res = list(ws.resolve(parse_requirements("a"), ad))
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        assert res == [a, c, b, foo]
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						|
 | 
						|
    @pytest.mark.xfail(
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        sys.version_info[:2] == (3, 12) and sys.version_info.releaselevel != 'final',
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						|
        reason="https://github.com/python/cpython/issues/103632",
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						|
    )
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						|
    def testDistroDependsOptions(self):
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        d = self.distRequires(
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            """
 | 
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            Twisted>=1.5
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            [docgen]
 | 
						|
            ZConfig>=2.0
 | 
						|
            docutils>=0.3
 | 
						|
            [fastcgi]
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						|
            fcgiapp>=0.1"""
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						|
        )
 | 
						|
        self.checkRequires(d, "Twisted>=1.5")
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						|
        self.checkRequires(
 | 
						|
            d, "Twisted>=1.5 ZConfig>=2.0 docutils>=0.3".split(), ["docgen"]
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						|
        )
 | 
						|
        self.checkRequires(d, "Twisted>=1.5 fcgiapp>=0.1".split(), ["fastcgi"])
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						|
        self.checkRequires(
 | 
						|
            d,
 | 
						|
            "Twisted>=1.5 ZConfig>=2.0 docutils>=0.3 fcgiapp>=0.1".split(),
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						|
            ["docgen", "fastcgi"],
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						|
        )
 | 
						|
        self.checkRequires(
 | 
						|
            d,
 | 
						|
            "Twisted>=1.5 fcgiapp>=0.1 ZConfig>=2.0 docutils>=0.3".split(),
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						|
            ["fastcgi", "docgen"],
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						|
        )
 | 
						|
        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
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        req = next(parse_requirements("Foo<1.2"))
 | 
						|
 | 
						|
        with pytest.raises(VersionConflict) as vc:
 | 
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            ws.find(req)
 | 
						|
 | 
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        msg = 'Foo 1.2 is installed but Foo<1.2 is required'
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        assert vc.value.report() == msg
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						|
 | 
						|
    def test_resolve_conflicts_with_prior(self):
 | 
						|
        """
 | 
						|
        A ContextualVersionConflict should be raised when a requirement
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						|
        conflicts with a prior requirement for a different package.
 | 
						|
        """
 | 
						|
        # Create installation where Foo depends on Baz 1.0 and Bar depends on
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						|
        # Baz 2.0.
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						|
        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"))
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        Bar = Distribution.from_filename("/foo_dir/Bar-1.0.egg", metadata=md)
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						|
        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
 |