gh-146302: make Py_IsInitialized() thread-safe and reflect true init completion#146303

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gpshead wants to merge 8 commits intopython:mainfrom

gpshead:gh-146302-py-isinitialized-thread-safe

Commits on Mar 22, 2026

gh-146302: make Py_IsInitialized() thread-safe and reflect true init completion

gpshead
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claude
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Improve comment wording in pycore_runtime.h accessors

gpshead
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claude
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PySys_AddAuditHook: check initialized, not core_initialized

gpshead
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claude
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Add regression test: Py_IsInitialized() must be false during site import

gpshead
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claude
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Remove unnecessary putenv("PYTHONMALLOC=") from test

gpshead
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claude
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Address review: use wrapper functions instead of low-level accessors
gpshead
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alphabetical includes, ack that other APIs are used in the comment
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Commits on Mar 23, 2026

Address review: use seq-cst atomics for initialized flags
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