On Sun, 21 Apr 2013, Steven D'Aprano wrote:
On 21/04/13 04:32, Jim Mooney wrote:
I was looking at google pengine for python and it only supports 2.7. I've
installed 3 and would rather not go back (I kept doing Print without the
parentheses for awhile and it was really annoying ;')
So the question comes up. If there is a 2to3 script, which I got working,
is there a 3to2 script?. Or does that even makes sense since 3 has features
2 does not, although I read somewhere that many have been backported?
from __future__ import division, print_function
from future_builtins import *
This is the route I recommend, and take myself. Usually I'll do:
from __future__ import print_function, division, unicode_literals
try:
input = raw_input
range = xrange
except NameError:
pass #using python 3 already, whee!
which makes you able to write code that mostly looks to Python3.
You could also look at how Django does their 2/3 support:
https://www.djangoproject.com/weblog/2012/aug/19/experimental-python-3-support/
Looks like they use the `six` library:
http://pythonhosted.org/six/
HTH,
-W
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