Serhiy Storchaka <storchaka+cpyt...@gmail.com> added the comment:
I don't know how to reproduce a failure in tp_clear(). I just can't prove that
it never fails. Maybe it is needed a bug in the implementation of the buffer
protocol in third-party extension.
If it should not happen then we can just add
assert(!PyErr_Occurred());
or
if (PyErr_Occurred()) {
PyErr_WriteUnraisable(NULL);
}
It is better to crash in memoryview.c than in the garbage collector if this
crash is caused by incorrect buffer protocol implementation.
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue33713>
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