diff --git a/Lib/reprlib.py b/Lib/reprlib.py index 840dd0e2013..05bb1a0eb01 100644 --- a/Lib/reprlib.py +++ b/Lib/reprlib.py @@ -29,6 +29,7 @@ def recursive_repr(fillvalue='...'): wrapper.__name__ = getattr(user_function, '__name__') wrapper.__qualname__ = getattr(user_function, '__qualname__') wrapper.__annotations__ = getattr(user_function, '__annotations__', {}) + wrapper.__type_params__ = getattr(user_function, '__type_params__', ()) wrapper.__wrapped__ = user_function return wrapper diff --git a/Lib/test/test_reprlib.py b/Lib/test/test_reprlib.py index 502287b620d..3e93b561c14 100644 --- a/Lib/test/test_reprlib.py +++ b/Lib/test/test_reprlib.py @@ -774,5 +774,16 @@ class TestRecursiveRepr(unittest.TestCase): 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__": unittest.main() diff --git a/Misc/NEWS.d/next/Library/2023-09-25-09-59-59.gh-issue-109818.dLRtT-.rst b/Misc/NEWS.d/next/Library/2023-09-25-09-59-59.gh-issue-109818.dLRtT-.rst new file mode 100644 index 00000000000..184086af258 --- /dev/null +++ b/Misc/NEWS.d/next/Library/2023-09-25-09-59-59.gh-issue-109818.dLRtT-.rst @@ -0,0 +1,2 @@ +Fix :func:`reprlib.recursive_repr` not copying ``__type_params__`` from +decorated function.