[issue31465] Allow _PyType_Lookup() to raise exceptions

[Stefan Behnel]

Stefan Behnel added the comment:

I'm working on a PR for this, but after changing all usages and fixing up some error handling here and there, it results in an interpreter crash for me. I'll try to debug it during the next days.

----------
nosy: +pitrou, serhiy.storchaka

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue31465>
_______________________________________