[issue30873] `SystemError: <built-in function create_builtin> returned NULL without setting an error` from importing _pickle

[Serhiy Storchaka]

Changes by Serhiy Storchaka <storchaka+cpython at gmail.com>:


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nosy: +serhiy.storchaka

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue30873>
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