[issue39960] Using typename.__setattr__ in extension type with Py_TPFLAGS_HEAPTYPE is broken (hackcheck too eager?)

[David Caro]

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


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nosy: +David Caro
nosy_count: 5.0 -> 6.0
pull_requests: +20618
pull_request: https://github.com/python/cpython/pull/21473

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue39960>
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