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

[miss-islington]

miss-islington <mariatta.wijaya+miss-islington at gmail.com> added the comment:


New changeset 38d930f2ccbff6f93c4c54a7a6a1759266136504 by Miss Islington (bot) in branch '3.8':
bpo-41295: Reimplement the Carlo Verre "hackcheck" (GH-21528)
https://github.com/python/cpython/commit/38d930f2ccbff6f93c4c54a7a6a1759266136504


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