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gh-109818: `reprlib.recursive_repr` copies `__type_params__` (#109819)

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Nikita Sobolev 2023-09-28 05:26:42 +03:00 committed by GitHub
parent 5bb6f0fcba
commit f65f9e80fe
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3 changed files with 14 additions and 0 deletions
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1
Lib/reprlib.py
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@ -29,6 +29,7 @@ def recursive_repr(fillvalue='...'):
wrapper.__name__ = getattr(user_function, '__name__') wrapper.__name__ = getattr(user_function, '__name__')
wrapper.__qualname__ = getattr(user_function, '__qualname__') wrapper.__qualname__ = getattr(user_function, '__qualname__')
wrapper.__annotations__ = getattr(user_function, '__annotations__', {}) wrapper.__annotations__ = getattr(user_function, '__annotations__', {})
wrapper.__type_params__ = getattr(user_function, '__type_params__', ())
wrapper.__wrapped__ = user_function wrapper.__wrapped__ = user_function
return wrapper return wrapper

11
Lib/test/test_reprlib.py
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@ -774,5 +774,16 @@ class TestRecursiveRepr(unittest.TestCase):
self.assertIs(X.f, X.__repr__.__wrapped__) self.assertIs(X.f, X.__repr__.__wrapped__)
def test__type_params__(self):
class My:
@recursive_repr()
def __repr__[T: str](self, default: T = '') -> str:
return default
type_params = My().__repr__.__type_params__
self.assertEqual(len(type_params), 1)
self.assertEqual(type_params[0].__name__, 'T')
self.assertEqual(type_params[0].__bound__, str)
if __name__ == "__main__": if __name__ == "__main__":
unittest.main() unittest.main()

2
Misc/NEWS.d/next/Library/2023-09-25-09-59-59.gh-issue-109818.dLRtT-.rst Normal file
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@ -0,0 +1,2 @@
Fix :func:`reprlib.recursive_repr` not copying ``__type_params__`` from
decorated function.