Graham Dumpleton <[email protected]> added the comment:
This new problem I am seeing looks like it may be linked to where the
'atexit' module is initialised/imported in a sub interpreter but never
in the main interpreter. I can avoid the crash by having:
PyImport_ImportModule("atexit");
Py_Finalize();
At a guess, this is because:
module = PyState_FindModule(&atexitmodule);
if (module == NULL)
return;
still returns a module for case where imported in a sub interpreter but
not in main interpreter, but then:
modstate = GET_ATEXIT_STATE(module);
if (modstate->ncallbacks == 0)
return;
returns NULL for modstate for the main interpreter as PyInit_atexit()
had never been called for the main interpreter.
The fix would appear to be to check modstate for being NULL and return.
Ie.,
module = PyState_FindModule(&atexitmodule);
if (module == NULL)
return;
modstate = GET_ATEXIT_STATE(module);
if (modstate == NULL)
return;
if (modstate->ncallbacks == 0)
return;
Does that make sense to anyone? If it does and I am correct, I'll create
a new issue for it as original fix seems deficient.
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Python tracker <[email protected]>
<http://bugs.python.org/issue4200>
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