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Title: gh-146075: Prevent crash in `functools.partial()` from malformed `str` subclass by brijkapadia · Pull Request #146078 · python/cpython · GitHub

Open Graph Title: gh-146075: Prevent crash in `functools.partial()` from malformed `str` subclass by brijkapadia · Pull Request #146078 · python/cpython

X Title: gh-146075: Prevent crash in `functools.partial()` from malformed `str` subclass by brijkapadia · Pull Request #146078 · python/cpython

Description: The Python programming language. Contribute to python/cpython development by creating an account on GitHub.

Open Graph Description: In partial_vectorcall, an error returned by PyDict_Contains was considered to be a truthy value. Now, the error is handled appropriately. Issue: Assertion failure from functools.partial using a ...

X Description: In partial_vectorcall, an error returned by PyDict_Contains was considered to be a truthy value. Now, the error is handled appropriately. Issue: Assertion failure from functools.partial using a ...

Opengraph URL: https://github.com/python/cpython/pull/146078

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Update 2026-03-17-19-30-45.gh-issue-146075.85sCSh.rsthttps://github.com/python/cpython/pull/146078/commits/f1274c7b3acbdff3f65802053ac4aa79885de100
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