STINNER Victor <vstin...@python.org> added the comment:
This issue is partially fixed in the master branch. Extract of the
finalize_interp_clear() function, called by Py_EndInterpreter():
/* Clear interpreter state and all thread states */
PyInterpreterState_Clear(tstate->interp);
/* Trigger a GC collection on subinterpreters*/
if (!is_main_interp) {
_PyGC_CollectNoFail();
}
gc.collect() is now called.
It's only "partially" fixed because I would prefer to trigger a GC collection
before or during PyInterpreterState_Clear(). IMHO trigger it after
PyInterpreterState_Clear() creates a risk of crash in finalizers written in C
which don't handle well before called very late during Python finalization.
After PyInterpreterState_Clear(), Python is basically unusable. All modules are
cleared.
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue24554>
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