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bpo-38878: Fix os.PathLike __subclasshook__ (GH-17336)

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Quick subclasshook fix using the same method is being used in collections.abc (up to a certain degree).
This commit is contained in:
Bar Harel 2019-12-22 11:57:27 +02:00 • committed by Ivan Levkivskyi
parent f522a6ddb6
commit eae87e3e4e
3 changed files with 15 additions and 1 deletions
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8
Lib/test/test_os.py
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@ -4048,6 +4048,14 @@ class TestPEP519(unittest.TestCase):
self.assertRaises(ZeroDivisionError, self.fspath,
FakePath(ZeroDivisionError()))
def test_pathlike_subclasshook(self):
# bpo-38878: subclasshook causes subclass checks
# true on abstract implementation.
class A(os.PathLike):
pass
self.assertFalse(issubclass(FakePath, A))
self.assertTrue(issubclass(FakePath, os.PathLike))
def test_pathlike_class_getitem(self):
self.assertIs(os.PathLike[bytes], os.PathLike)