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Title: [3.14] gh-143050: Correct PyLong_FromString() to use _PyLong_Negate() (GH-145901) by miss-islington · Pull Request #147331 · python/cpython · GitHub

Open Graph Title: [3.14] gh-143050: Correct PyLong_FromString() to use _PyLong_Negate() (GH-145901) by miss-islington · Pull Request #147331 · python/cpython

X Title: [3.14] gh-143050: Correct PyLong_FromString() to use _PyLong_Negate() (GH-145901) by miss-islington · Pull Request #147331 · python/cpython

Description: The long_from_string_base() might return a small integer, when the _pylong.py is used to do conversion. Hence, we must be careful here to not smash it "small int" bit by using the _PyLong_FlipSign(). (cherry picked from commit db5936c) Co-authored-by: Sergey B Kirpichev skirpichev@gmail.com Co-authored-by: Victor Stinner vstinner@python.org Issue: gh-143050

Open Graph Description: The long_from_string_base() might return a small integer, when the _pylong.py is used to do conversion. Hence, we must be careful here to not smash it "small int" bit by using the _PyLon...

X Description: The long_from_string_base() might return a small integer, when the _pylong.py is used to do conversion. Hence, we must be careful here to not smash it "small int" bit by using th...

Opengraph URL: https://github.com/python/cpython/pull/147331

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[3.14] gh-143050: Correct PyLong_FromString() to use _PyLong_Negate() (GH-145901) https://github.com/python/cpython/pull/147331/files#top
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ced1164 gh-143050: Correct PyLong_FromString() to use _PyLong_Negate() (GH-14… skirpichev Mar 31, 2026 https://github.com/python/cpython/pull/147331/commits/ced11643fdcc98aee29557e71584fd84e341f197
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