gh-119972: typing: Fix specialization of generic with broken __eq__ #119973
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AlexWaygood
reviewed
Jun 3, 2024
| @@ -5191,6 +5191,18 @@ class B(Generic[T]): | |||
| self.assertEqual(A[T], A[T]) | |||
| self.assertNotEqual(A[T], B[T]) | |||
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| def test_buggy_eq(self): | |||
| class BrokenEq(abc.ABCMeta): | |||
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Doesn't need to be ABCMeta to trigger this; just type is sufficient:
Suggested change
| class BrokenEq(abc.ABCMeta): | |
| class BrokenEq(type): |
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This breaks typing-extensions if backported to 3.12; probably not worth it. I'll probably push an alternative later. |
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__eq__cannot be specialized #119972