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

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Merged
gpshead merged 10 commits into from
Apr 11, 2026
Merged

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

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1eda370
gh-146302: make Py_IsInitialized() thread-safe and reflect true init …
gpshead Mar 22, 2026
efeae3b
Improve comment wording in pycore_runtime.h accessors
gpshead Mar 22, 2026
3e1eedd
PySys_AddAuditHook: check initialized, not core_initialized
gpshead Mar 22, 2026
59f51a2
Add regression test: Py_IsInitialized() must be false during site import
gpshead Mar 22, 2026
2e3aa7e
Remove unnecessary putenv("PYTHONMALLOC=") from test
gpshead Mar 22, 2026
ba28b37
Address review: use wrapper functions instead of low-level accessors
gpshead Mar 22, 2026
abae231
alphabetical includes, ack that other APIs are used in the comment
gpshead Mar 22, 2026
01df0a2
Address review: use seq-cst atomics for initialized flags
gpshead Mar 23, 2026
ee2d0be
_testembed.test_init_main assert not init per review
gpshead Apr 11, 2026
aec5131
Merge branch 'main' into gh-146302-py-isinitialized-thread-safe
gpshead Apr 11, 2026
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Remove unnecessary putenv("PYTHONMALLOC=") from test 
Co-Authored-By: Claude Opus 4.6 (1M context) <[email protected]>
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@gpshead @claude
gpshead and claude committed Mar 22, 2026
commit 2e3aa7ea59974ace7c672464b76f7ecc3b0c038c
1 change: 0 additions & 1 deletion Programs/_testembed.c
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Expand Up @@ -2223,7 +2223,6 @@ static int hook_check_initialized_on_site_import(

static int test_isinitialized_false_during_site_import(void)
{
putenv("PYTHONMALLOC=");
_initialized_during_site_import = -1;

/* Register audit hook before initialization */
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