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[3.15] gh-158820: Add null checks to avoid segfaults with lazy imports at shutdown (GH-158821) - #159062
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… at shutdown (pythonGH-158821) Destructors can run after finalization has cleared the interpreter's lazy_modules set and lazy_pending_submodules dict. Declaring or resolving a lazy import from one of them passed NULL to PySet_Add(), PySet_Discard() or the pending-submodules lookup. Treat the bookkeeping as a no-op once the state is gone, as the other readers of this state already do. (cherry picked from commit a6e6361) Co-authored-by: Brittany Reynoso <breynoso@meta.com>
miss-islington
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DinoV,
FFY00,
Yhg1s,
brettcannon,
ericsnowcurrently,
kumaraditya303,
ncoghlan,
pablogsal and
warsaw
as code owners
October 9, 2026 11:57
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@JelleZijlstra This should probably end up in 3.15.1 as well. |
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Destructors can run after finalization has cleared the interpreter's
lazy_modules set and lazy_pending_submodules dict. Declaring or
resolving a lazy import from one of them passed NULL to PySet_Add(),
PySet_Discard() or the pending-submodules lookup.
Treat the bookkeeping as a no-op once the state is gone, as the other
readers of this state already do.
(cherry picked from commit a6e6361)
Co-authored-by: Brittany Reynoso breynoso@meta.com