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[3.14] gh-137317: Fix inspect.signature() for class with wrapped init or new (GH-137862)#138224

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Merged

vstinner merged 1 commit intopython:3.14frommiss-islington:backport-025a213-3.14

Oct 8, 2025

Merged

[3.14] gh-137317: Fix inspect.signature() for class with wrapped init or new (GH-137862)#138224

vstinner merged 1 commit intopython:3.14frommiss-islington:backport-025a213-3.14

Oct 8, 2025

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miss-islington commentedAug 28, 2025•
edited by bedevere-appbot
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Fixed several cases whereinit,new or metaclass`call is a descriptor
that returns a wrapped function.
(cherry picked from commit025a213)

Co-authored-by: Ju4tCode42488585+yanyongyu@users.noreply.github.com

Issue:Unable to inspect class withcyfunction __init__ due to unwrap and descriptor behavior changed #137317

pythongh-137317: Fix inspect.signature() for class with wrapped __ini…

1a85ae7

…t__ or __new__ (pythonGH-137862)Fixed several cases where __init__, __new__ or metaclass` __call__ is a descriptorthat returns a wrapped function.(cherry picked from commit025a213)Co-authored-by: Ju4tCode <42488585+yanyongyu@users.noreply.github.com>