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__lazy_import__: globals=None signature differs from explicit None behavior #161229
Description
Bug report
__lazy_import__ shows globals=None in its signature, but explicitly passing None raises TypeError, while omitting it succeeds.
Reproduced with CPython 3.15.0 and 3.15.2 on Linux x86_64 using python3.15 -I -S repro.py:
import inspect
print(inspect.signature(__lazy_import__))
__lazy_import__('sys')
print('omitted globals: OK')
try:
__lazy_import__('sys', globals=None)
except TypeError as exc:
print(f'{type(exc).__name__}: {exc}')Output on both versions:
(name, globals=None, locals=None, fromlist=(), level=0)
omitted globals: OK
TypeError: expect dict for globals, got NoneType
CPython versions tested on:
3.15
Operating systems tested on:
Linux
Activity
[-]__lazy_import__: globals=None signature differs from explicit None behavior[/-][+]`__lazy_import__`: globals=None signature differs from explicit None behavior[/+][-]`__lazy_import__`: globals=None signature differs from explicit None behavior[/-][+]`__lazy_import__: globals=None` signature differs from explicit None behavior[/+]