[Python-Dev] PEP 414 - Unicode Literals for Python 3 (original) (raw)

Barry Warsaw barry at python.org
Mon Feb 27 14:09:06 CET 2012

On Feb 27, 2012, at 12:34 PM, Giampaolo Rodolà wrote:

Il 25 febbraio 2012 21:23, Armin Ronacher If the main point of this proposal is avoiding an explicit 2to3 run on account of 2to3 being too slow then I'm -1.

2to3's speed isn't the only problem with the tool, although it's a big one. It also doesn't always work, and it makes packaging libraries dependent on it more difficult.

As for the "working" part, I forget the details, but let's say you have a test suite in your package. If you run python setup.py test in a Python 2 world, then python3 setup.py test may fail to build properly. IIRC this was due to some confusion that 2to3 had.

I've no doubt that these things can be fixed, but why? I'd much rather see the effort put into allowing us to write Python 3 code natively, with some accommodations for Python 2 from a single code base for the last couple of years that that will still be necessary .

Cheers, -Barry

More information about the Python-Dev mailing list