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[pull] main from python:main#840

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pull[bot] merged 8 commits intotj-python:mainfrom
python:main
Mar 9, 2026
Merged

[pull] main from python:main#840
pull[bot] merged 8 commits intotj-python:mainfrom
python:main

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@pull pull bot commented Mar 9, 2026

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📚 Documentation preview 📚: https://cpython-previews--840.org.readthedocs.build/

StanFromIreland and others added 8 commits March 9, 2026 10:37
Co-authored-by: Savannah Ostrowski <savannah@python.org>
Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Stan Ulbrych <stan@ulbrych.org>
)

We already have a stop-the-world pause elsewhere in this code path
(type_set_bases) and this makes will make it easier to avoid contention
on the TYPE_LOCK when looking up names in the MRO hierarchy.

Also use deferred reference counting for non-immortal MROs.
* Vary compiler flags in fuzz_pycompile

* Drop `PyCF_SOURCE_IS_UTF8`
@pull pull bot locked and limited conversation to collaborators Mar 9, 2026
@pull pull bot added the ⤵️ pull label Mar 9, 2026
@pull pull bot merged commit 099943b into tj-python:main Mar 9, 2026
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5 participants