[issue31107] copyreg does not properly mangle __slots__ names

[Serhiy Storchaka]

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


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assignee:  -> serhiy.storchaka
nosy: +serhiy.storchaka
stage:  -> patch review
versions: +Python 3.7 -Python 3.3, Python 3.4, Python 3.5

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue31107>
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