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Title: locale.setlocale() crashes on Windows for long locale name · Issue #137273 · python/cpython · GitHub

Open Graph Title: locale.setlocale() crashes on Windows for long locale name · Issue #137273 · python/cpython

X Title: locale.setlocale() crashes on Windows for long locale name · Issue #137273 · python/cpython

Description: Crash report locale.setlocale(locale.LC_CTYPE, 'ks_IN.UTF-8@devanagari') crashes. locale.setlocale(locale.LC_CTYPE, 'ks_IN.UTF8@devanagari') just raises a locale.Error. It's not just about length. Standard locale names in Windows (like '...

Open Graph Description: Crash report locale.setlocale(locale.LC_CTYPE, 'ks_IN.UTF-8@devanagari') crashes. locale.setlocale(locale.LC_CTYPE, 'ks_IN.UTF8@devanagari') just raises a locale.Error. It's not just about length. ...

X Description: Crash report locale.setlocale(locale.LC_CTYPE, 'ks_IN.UTF-8@devanagari') crashes. locale.setlocale(locale.LC_CTYPE, 'ks_IN.UTF8@devanagari') just raises a locale.Error. It's not...

Opengraph URL: https://github.com/python/cpython/issues/137273

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og:image:altCrash report locale.setlocale(locale.LC_CTYPE, 'ks_IN.UTF-8@devanagari') crashes. locale.setlocale(locale.LC_CTYPE, 'ks_IN.UTF8@devanagari') just raises a locale.Error. It's not just about length. ...
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locale.setlocale() crashes on Windows for long locale namehttps://github.com/python/cpython/issues/137273#top
https://github.com/serhiy-storchaka
3.13bugs and security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.13%22
3.14bugs and security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.14%22
3.15pre-release feature fixes, bugs and security fixeshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%223.15%22
OS-windowshttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22OS-windows%22
extension-modulesC modules in the Modules dirhttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22extension-modules%22
type-crashA hard crash of the interpreter, possibly with a core dumphttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22type-crash%22
https://github.com/serhiy-storchaka
serhiy-storchakahttps://github.com/serhiy-storchaka
on Jul 31, 2025https://github.com/python/cpython/issues/137273#issue-3280042377
gh-137273: Fix debug assertion failure in locale.setlocale() on Windows #137300https://github.com/python/cpython/pull/137300
[3.14] gh-137273: Fix debug assertion failure in locale.setlocale() on Windows (GH-137300) #137305https://github.com/python/cpython/pull/137305
[3.13] gh-137273: Fix debug assertion failure in locale.setlocale() on Windows (GH-137300) #137306https://github.com/python/cpython/pull/137306
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type-crashA hard crash of the interpreter, possibly with a core dumphttps://github.com/python/cpython/issues?q=state%3Aopen%20label%3A%22type-crash%22
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