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bpo-38908: Fix issue when non runtime_protocol failed to raise TypeError (#26067)

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Yurii Karabas 2021-05-12 18:47:49 +03:00 • committed by GitHub
parent 9b06e4b535
commit c40486a32d
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3 changed files with 23 additions and 2 deletions
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8
Lib/test/test_typing.py
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@ -1422,6 +1422,14 @@ class ProtocolTests(BaseTestCase):
class CustomContextManager(typing.ContextManager, Protocol):
pass
def test_non_runtime_protocol_isinstance_check(self):
class P(Protocol):
x: int
with self.assertRaisesRegex(TypeError, "@runtime_checkable"):
isinstance(1, P)
class GenericTests(BaseTestCase):
def test_basics(self):