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Title: [3.15] gh-149816: Fix a race condition in `_PyBytes_FromList` with free-threading (GH-149909) by miss-islington · Pull Request #149911 · python/cpython · GitHub

Open Graph Title: [3.15] gh-149816: Fix a race condition in `_PyBytes_FromList` with free-threading (GH-149909) by miss-islington · Pull Request #149911 · python/cpython

X Title: [3.15] gh-149816: Fix a race condition in `_PyBytes_FromList` with free-threading (GH-149909) by miss-islington · Pull Request #149911 · python/cpython

Description: (cherry picked from commit 46afba7) Co-authored-by: sobolevn mail@sobolevn.me Issue: gh-149816

Open Graph Description: (cherry picked from commit 46afba7) Co-authored-by: sobolevn mail@sobolevn.me Issue: gh-149816

X Description: (cherry picked from commit 46afba7) Co-authored-by: sobolevn mail@sobolevn.me Issue: gh-149816

Opengraph URL: https://github.com/python/cpython/pull/149911

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f0d1644 gh-149816: Fix a race condition in `_PyBytes_FromList` with free-thre… sobolevn May 16, 2026 https://github.com/python/cpython/pull/149911/commits/f0d1644c6edc980c0fe04291a89949e04e551185
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