gh-146075: Prevent crash in functools.partial() from malformed str subclass#146078
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encukou merged 3 commits intopython:mainfrom Mar 18, 2026
Merged
gh-146075: Prevent crash in functools.partial() from malformed str subclass#146078encukou merged 3 commits intopython:mainfrom
functools.partial() from malformed str subclass#146078encukou merged 3 commits intopython:mainfrom
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In `partial_vectorcall`, an error returned by `PyDict_Contains` was considered to be a truthy value. Now, the error is handled appropriately.
StanFromIreland
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str subclassfunctools.partial() from malformed str subclass
skirpichev
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Mar 17, 2026
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skirpichev
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LGTM
Test failures look unrelated.
kumaraditya303
approved these changes
Mar 18, 2026
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In
partial_vectorcall, an error returned byPyDict_Containswas considered to be a truthy value. Now, the error is handled appropriately.functools.partialusing astrsubclass that raises on__eq__#146075