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Title: [3.14] gh-132551: make `io.BytesIO` thread safe (GH-132616) by kumaraditya303 · Pull Request #138551 · python/cpython · GitHub

Open Graph Title: [3.14] gh-132551: make `io.BytesIO` thread safe (GH-132616) by kumaraditya303 · Pull Request #138551 · python/cpython

X Title: [3.14] gh-132551: make `io.BytesIO` thread safe (GH-132616) by kumaraditya303 · Pull Request #138551 · python/cpython

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

Open Graph Description: (cherry picked from commits 5dd3a3a, 7c92497 and d8fa40b) Issue: Segfault/abort from calling BytesIO unshare_buffer in threads on a free-threaded build #132551

X Description: (cherry picked from commits 5dd3a3a, 7c92497 and d8fa40b) Issue: Segfault/abort from calling BytesIO unshare_buffer in threads on a free-threaded build #132551

Opengraph URL: https://github.com/python/cpython/pull/138551

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og:image:alt(cherry picked from commits 5dd3a3a, 7c92497 and d8fa40b) Issue: Segfault/abort from calling BytesIO unshare_buffer in threads on a free-threaded build #132551
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[3.14] gh-132551: make `io.BytesIO` thread safe (GH-132616)https://github.com/python/cpython/pull/138551/commits/5b8cff99c74fbc094b93e1a1e81cb8aa0805f7cc
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Update Lib/test/test_free_threading/test_io.pyhttps://github.com/python/cpython/pull/138551/commits/47400f3d0563b39bae2fcc818d665974a5359eac
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gh-132551: add missing critical sections on BytesIO methods (#137073)https://github.com/python/cpython/pull/138551/commits/6a67559f64885b65e8c95223c0fc6698d24d5930
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Merge branch '3.14' into backport-5dd3a3a-3.14https://github.com/python/cpython/pull/138551/commits/2b6ddaf3f2e060f71ffa07592e96ec03938073a0
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