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

[David Caro]

Change by David Caro <david at dcaro.es>:


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keywords: +patch
nosy: +David Caro
nosy_count: 5.0 -> 6.0
pull_requests: +20617
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/21473

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