[issue19475] Add timespec optional flag to datetime isoformat() to choose the precision

[Berker Peksag]

Berker Peksag added the comment:

Thanks for the patch, Alessandro. I left some comments about documentation part of the patch, but I can fix them myself if you don't have time.

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stage: commit review -> patch review

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue19475>
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