[issue34610] Incorrect iteration of Manager.dict() method of the multiprocessing module.

[Serhiy Storchaka]

Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:

DictProxy needs to provide the __iter__() method. And perhaps methods keys(), values() and items() need to be reworked in Python 3. has_key() is unneeded in Python 3.

It is worth to test also other special and new in Python 3 methods.

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nosy: +benjamin.peterson, serhiy.storchaka
versions: +Python 2.7, Python 3.7, Python 3.8

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<https://bugs.python.org/issue34610>
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