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Title: gh-133465: Allow PyErr_CheckSignals to be called without holding the GIL. by zackw · Pull Request #133466 · python/cpython · GitHub

Open Graph Title: gh-133465: Allow PyErr_CheckSignals to be called without holding the GIL. by zackw · Pull Request #133466 · python/cpython

X Title: gh-133465: Allow PyErr_CheckSignals to be called without holding the GIL. by zackw · Pull Request #133466 · python/cpython

Description: Addresses #133465. See there, or the commit message for the first commit in this PR, for rationale. There are two commits: the first actually implements the change, and the second demonstrates the motivation for it by pulling a lot of uses of Py_(BEGIN|END)_ALLOW_THREADS within Python's stdlib out of loops. This has been tested (lightly - just the built in testsuite) both with and without --disable-gil; however, I did not test --enable-optimizations nor --enable-experimental-jit. Issue: gh-133465 📚 Documentation preview 📚: https://cpython-previews--133466.org.readthedocs.build/

Open Graph Description: Addresses #133465. See there, or the commit message for the first commit in this PR, for rationale. There are two commits: the first actually implements the change, and the second demonstrates the...

X Description: Addresses #133465. See there, or the commit message for the first commit in this PR, for rationale. There are two commits: the first actually implements the change, and the second demonstrates the...

Opengraph URL: https://github.com/python/cpython/pull/133466

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c0f5de9 Allow PyErr_CheckSignals to be called without holding the GIL. zackw Apr 30, 2025 https://github.com/python/cpython/pull/133466/commits/c0f5de9719ccf13cae89baeccaf4e9f3079923f2
3e25a93 Take advantage of PyErr_CheckSignals now being callable without the GIL. zackw May 5, 2025 https://github.com/python/cpython/pull/133466/commits/3e25a9350a6b32e297e2785e8fb15ca522df8c0d
1c3af66 Add a new function instead of changing PyErr_CheckSignals semantics. zackw May 19, 2025 https://github.com/python/cpython/pull/133466/commits/1c3af668859e1e50e8bb11e3aa58fd2b37d37e54
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