[Python-Dev] Deprecate `from __future__ import unicode_literals`?
xavier.combelle at gmail.com
Fri Dec 16 15:38:29 EST 2016
I personally used it when I was forced to use python 2 and working
mainly with unicode processing (It is particularly handy when working
with json for example)
Le 16/12/2016 à 20:24, Guido van Rossum a écrit :
> I am beginning to think that `from __future__ import unicode_literals`
> does more harm than good. I don't recall exactly why we introduced it,
> but with the restoration of u"" literals in Python 3.3 we have a much
> better story for writing straddling code that is unicode-correct.
> The problem is that the future import does both too much and not
> enough -- it does too much because it changes literals to unicode even
> in contexts where there is no benefit (e.g. the argument to getattr()
> -- I still hear of code that breaks due to this occasionally) and at
> the same time it doesn't do anything for strings that you read from
> files, receive from the network, or even from other files that don't
> use the future import.
> I wonder if we can add an official note to the 2.7 docs recommending
> against it? (And maybe even to the 3.x docs if it's mentioned there at
> --Guido van Rossum (python.org/~guido <http://python.org/%7Eguido>)
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