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gh-132413: Clear weakref to _datetime after modules are finalized #136152

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neonene wants to merge 13 commits into from
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gh-132413: Clear weakref to _datetime after modules are finalized #136152

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ff10134
NEWS
neonene Jun 30, 2025
4f83cb0
Add test
neonene Jun 30, 2025
4e83b5b
Avoid weakref being cleared by GC
neonene Jun 30, 2025
c4b1c62
Do not hold module in tuple
neonene Jul 1, 2025
4b1b45c
GC-untrack/track
neonene Jul 1, 2025
c5a2f41
Merge branch 'main' into wr-132413
neonene Jul 1, 2025
e33f704
Sort weaklist
neonene Jul 1, 2025
263bdb2
Add non-NULL check
neonene Jul 1, 2025
fdfadf0
Simply do not GC-untrack/track
neonene Jul 1, 2025
26c6425
Add a missing NULL check
neonene Jul 1, 2025
4807c36
Merge branch 'main' into wr-132413
neonene Jul 1, 2025
a5f2521
move test to test_gc.py
neonene Jul 3, 2025
d7c36b9
add and move test case
neonene Jul 8, 2025
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Do not hold module in tuple
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@neonene
neonene authored Jul 1, 2025
commit c4b1c62ea0dadc164097943c86c6e46181901335
8 changes: 6 additions & 2 deletions Python/pylifecycle.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1560,10 +1560,11 @@ finalize_remove_modules(PyObject *modules, int verbose)
* elsewhere, keep the referenced module alive
* until finalize_modules_clear_weaklist() finishes.
*/ \
tup = PyTuple_Pack(3, name, wr, mod); \
Py_INCREF(mod); \
tup = PyTuple_Pack(3, name, wr, Py_True); \
} \
else { \
tup = PyTuple_Pack(2, name, wr); \
tup = PyTuple_Pack(3, name, wr, Py_False); \
} \
if (!tup || PyList_Append(weaklist, tup) < 0) { \
PyErr_FormatUnraisable("Exception ignored while removing modules"); \
Expand Down Expand Up @@ -1677,6 +1678,9 @@ finalize_modules_clear_weaklist(PyInterpreterState *interp,
}
_PyModule_Clear(mod);
Py_DECREF(mod);
if (PyTuple_GET_ITEM(tup, 2) == Py_True) {
Py_DECREF(mod);
}
}
}

Expand Down