[3.15] gh-151218: Replace sys.flags in PyConfig_Set() (GH-151402) - #151552
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vstinner merged 1 commit intoJun 16, 2026
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[3.15] gh-151218: Replace sys.flags in PyConfig_Set() (GH-151402)#151552vstinner merged 1 commit into
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PyConfig_Set() and sys.set_int_max_str_digits() now replace sys.flags (create a new object), instead of modifying sys.flags in-place. Modifying sys.flags in-place can lead to data races when multiple threads are reading or writing sys.flags in parallel. Use _Py_atomic functions to get and set max_str_digits members. (cherry picked from commit b16d23f) Co-authored-by: Victor Stinner <vstinner@python.org> Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>
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June 16, 2026 16:17
This was referenced Jun 16, 2026
vstinner
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June 16, 2026 16:19
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PyConfig_Set() and sys.set_int_max_str_digits() now replace
sys.flags (create a new object), instead of modifying sys.flags in-place.
Modifying sys.flags in-place can lead to data races when multiple
threads are reading or writing sys.flags in parallel.
Use _Py_atomic functions to get and set max_str_digits members.
(cherry picked from commit b16d23f)
Co-authored-by: Victor Stinner vstinner@python.org
Co-authored-by: Bénédikt Tran 10796600+picnixz@users.noreply.github.com