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gh-158918: Reduce C stack usage of _PyModule_IsPossiblyShadowing. - #158919

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Yhg1s:pymodule_ispossiblyshadowing-stack
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Yhg1s wants to merge 2 commits into
python:mainfrom
Yhg1s:pymodule_ispossiblyshadowing-stack

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@Yhg1s Yhg1s commented Oct 6, 2026 •

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Reduce C stack usage of _PyModule_IsPossiblyShadowing, which could potentially cause stack overflows during module attribute access while deeply recursing in agressively optimized builds.

potentially cause stack overflows during module attribute access while
deeply recursing in agressively optimized builds.
@Yhg1s Yhg1s added needs backport to 3.14 bugs and security fixes needs backport to 3.15 pre-release feature fixes, bugs and security fixes labels Oct 6, 2026
@Yhg1s Yhg1s changed the title GH-158918: Reduce C stack usage of _PyModule_IsPossiblyShadowing. gh-158918: Reduce C stack usage of _PyModule_IsPossiblyShadowing. Oct 6, 2026
@Yhg1s Yhg1s added needs backport to 3.14 bugs and security fixes needs backport to 3.15 pre-release feature fixes, bugs and security fixes labels Oct 6, 2026
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