diff options
| -rw-r--r-- | Lib/test/test_typing.py | 19 | ||||
| -rw-r--r-- | Lib/typing.py | 1 |
2 files changed, 20 insertions, 0 deletions
diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py index 09e39fe..b12e5ea 100644 --- a/Lib/test/test_typing.py +++ b/Lib/test/test_typing.py @@ -1232,6 +1232,25 @@ class GenericTests(BaseTestCase): class C(List[int], B): ... self.assertEqual(C.__mro__, (C, list, B, Generic, object)) + def test_init_subclass_super_called(self): + class FinalException(Exception): + pass + + class Final: + def __init_subclass__(cls, **kwargs) -> None: + for base in cls.__bases__: + if base is not Final and issubclass(base, Final): + raise FinalException(base) + super().__init_subclass__(**kwargs) + class Test(Generic[T], Final): + pass + with self.assertRaises(FinalException): + class Subclass(Test): + pass + with self.assertRaises(FinalException): + class Subclass(Test[int]): + pass + def test_nested(self): G = Generic diff --git a/Lib/typing.py b/Lib/typing.py index 510574c..3ac3b93 100644 --- a/Lib/typing.py +++ b/Lib/typing.py @@ -850,6 +850,7 @@ class Generic: return _GenericAlias(cls, params) def __init_subclass__(cls, *args, **kwargs): + super().__init_subclass__(*args, **kwargs) tvars = [] if '__orig_bases__' in cls.__dict__: error = Generic in cls.__orig_bases__ |