[issue41295] CPython 3.8.4 regression on __setattr__ in multiinheritance with metaclasses

[David Caro]

David Caro <david at dcaro.es> added the comment:

Just sent a PR that fixes the issue (a first approach), let me know if it's addressing the issue correctly or if there's a better way.


Thanks!

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<https://bugs.python.org/issue41295>
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