[issue18864] Implementation for PEP 451 (importlib.machinery.ModuleSpec)

[Eric Snow]

Eric Snow added the comment:

About the only thing left for this ticket is to finish up writing a few tests and round out some documentation.

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dependencies:  -Update pickle to take advantage of PEP 451, Update zipimport for PEP 451

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue18864>
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