Message 411332 - Python tracker

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> See also bpo-46476: Not all memory allocated by _Py_Quicken() is released at Python exit.

If you apply my workaround for bpo-46476:
https://bugs.python.org/issue46476#msg411321

Python no longer leaks any memory block at exit for the simplest command!

$ ./python -I -X showrefcount -c pass
[-5 refs, 0 blocks]

Moreover, I modified deepfreeze to only freeze importlib._bootstrap and importlib._bootstrap_external. It confirms that bpo-46449 is causing the negative reference count, because with these additional local changes I get a positive _Py_RefTotal:

$ ./python -I -X showrefcount -c pass
[6 refs, 0 blocks]