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gh-104555: Fix isinstance() and issubclass() for runtime-checkable protocols that use PEP 695 (#104556)

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Fixes #104555
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Alex Waygood 2023-05-16 17:38:10 +01:00 • committed by GitHub
parent f40890b124
commit 1163782868
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2 changed files with 19 additions and 1 deletions
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18
Lib/test/test_typing.py
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@ -3134,6 +3134,24 @@ class ProtocolTests(BaseTestCase):
self.assertIsInstance(Test(), PSub)
def test_pep695_generic_protocol_callable_members(self):
@runtime_checkable
class Foo[T](Protocol):
def meth(self, x: T) -> None: ...
class Bar[T]:
def meth(self, x: T) -> None: ...
self.assertIsInstance(Bar(), Foo)
self.assertIsSubclass(Bar, Foo)
@runtime_checkable
class SupportsTrunc[T](Protocol):
def __trunc__(self) -> T: ...
self.assertIsInstance(0.0, SupportsTrunc)
self.assertIsSubclass(float, SupportsTrunc)
def test_init_called(self):
T = TypeVar('T')