[issue44588] Possible double Py_XDECREF in cpython typeobject.c

[Ziyue Jiang]

Ziyue Jiang <ziyue.jiang97 at gmail.com> added the comment:

I just take over a Python3.6 project from a friend, migrating it to the newest Python version. Then this problem happened. After debugging, I think it's a possible double Py_XDECREF if using C-API like this.
But I'm not familiar with Python C-API before so I'm not sure whether it's a problem or just a misuse about tp_flags.

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<https://bugs.python.org/issue44588>
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