[issue19209] Remove import copyreg from os module

[STINNER Victor]

STINNER Victor added the comment:

I don't know the copyreg module! Does it have a unit test for the registered os objects? If not, how can it be tested manually?

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nosy: +haypo

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19209>
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