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Title: gh-151593: Avoid deadlock in insert_split_key(). by nascheme · Pull Request #152133 · python/cpython · GitHub

Open Graph Title: gh-151593: Avoid deadlock in insert_split_key(). by nascheme · Pull Request #152133 · python/cpython

X Title: gh-151593: Avoid deadlock in insert_split_key(). by nascheme · Pull Request #152133 · python/cpython

Description: We must not acquire other locks while holding the LOCK_KEYS() mutex. This issue is fixed by calling PyType_Modifed() after releasing the mutex. Note: this PR was assisted by Claude Opus 4.8. Issue: gh-151593

Open Graph Description: We must not acquire other locks while holding the LOCK_KEYS() mutex. This issue is fixed by calling PyType_Modifed() after releasing the mutex. Note: this PR was assisted by Claude Opus 4.8. Iss...

X Description: We must not acquire other locks while holding the LOCK_KEYS() mutex. This issue is fixed by calling PyType_Modifed() after releasing the mutex. Note: this PR was assisted by Claude Opus 4.8. Iss...

Opengraph URL: https://github.com/python/cpython/pull/152133

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30df3b9 gh-151593: Avoid deadlock in insert_split_key(). nascheme Jun 24, 2026 https://github.com/python/cpython/pull/152133/commits/30df3b9682a10f87257f33d1993ef477aa39c923
b55d0e0 Fix markup in NEWS file. nascheme Jun 24, 2026 https://github.com/python/cpython/pull/152133/commits/b55d0e08799eeef7881d18cba30f262135070a0e
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