[docs] [issue19363] Python 2.7's future_builtins.map is not compatible with Python 3's map

[Gareth Rees]

Gareth Rees added the comment:

Sorry about that; here it is. I had second thoughts about recommending zip() as an alternative (that would only work for cases where the None was constant; in other cases you might need lambda *args: args, but this seemed too complicated), so the note now says only:

    Note: In Python 3, map() does not accept None for the
    function argument.

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keywords: +patch
Added file: http://bugs.python.org/file34117/issue19363.patch

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