`reprlib.recursive_repr` does not copy `__type_params__`

[sobolevn]

Bug report

Repro:

>>> from reprlib import recursive_repr
>>> 
>>> class My:
... @recursive_repr()
... def __repr__[T](self, converter: T | None = None): ...
... 
>>> My().__repr__.__type_params__
()

This happens because recursive_repr does not use @wraps, but reinvents it:

cpython/Lib/reprlib.py

Lines 26 to 33 in f2eaa92

	# Can't use functools.wraps() here because of bootstrap issues
	wrapper.__module__ = getattr(user_function, '__module__')
	wrapper.__doc__ = getattr(user_function, '__doc__')
	wrapper.__name__ = getattr(user_function, '__name__')
	wrapper.__qualname__ = getattr(user_function, '__qualname__')
	wrapper.__annotations__ = getattr(user_function, '__annotations__', {})
	wrapper.__wrapped__ = user_function
	return wrapper

And __type_params__ was added in #104600

Linked PRs

• gh-109818: reprlib.recursive_repr copies __type_params__ #109819
• [3.12] gh-109818: reprlib.recursive_repr copies __type_params__ (… #109999

[hugovk]

Thanks for the issue and PRs!

Little reminder to close issues when the PRs are merged :)