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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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_testembed.test_init_main assert not init per review
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@gpshead
gpshead committed Apr 11, 2026
commit ee2d0be3d1eed19d463fef3f6da083b38027ce42
2 changes: 2 additions & 0 deletions Programs/_testembed.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2000,6 +2000,8 @@ static int test_init_main(void)
config._init_main = 0;
init_from_config_clear(&config);

assert(Py_IsInitialized() == 0);

/* sys.stdout don't exist yet: it is created by _Py_InitializeMain() */
int res = PyRun_SimpleString(
"import sys; "
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