[3.11] gh-111777: Fix assertion errors on incorrectly still-tracked GC object destruction (GH-111778) #111990
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… object destruction (pythonGH-111778) In PyObject_GC_Del, in Py_DEBUG mode, when warning about GC objects that were not properly untracked before starting destruction, take care to untrack the object _before_ warning, to avoid triggering a GC run and causing the problem the code tries to warn about. Also make sure to save and restore any pending exceptions, which the warning would otherwise clobber or trigger an assertion error on. (cherry picked from commit ce6a533) Co-authored-by: T. Wouters <[email protected]>
This was referenced Nov 12, 2023
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In PyObject_GC_Del, in Py_DEBUG mode, when warning about GC objects that
were not properly untracked before starting destruction, take care to
untrack the object before warning, to avoid triggering a GC run and
causing the problem the code tries to warn about. Also make sure to save and
restore any pending exceptions, which the warning would otherwise clobber or
trigger an assertion error on.
(cherry picked from commit ce6a533)
Co-authored-by: T. Wouters [email protected]