I'm trying to make my script cross-Python (Python 2 and 3 compatible), and to solve an import problem I did this:

__init__.py file

import sys

if (sys.version_info[0] < 3):
    from core import translate
    from .core import translate

Is it the good way to do it?


1 Answer 1


No that's not the best way to import in both Python2 and Python3, if you have to support Python 2.5.0a1 and above. This is as you can use:

from __future__ import absolute_import
from .core import translate

As documented in the __future__ module.

  • \$\begingroup\$ Not sure if the question does belong here but this answer definitly taught me something! Thanks :) \$\endgroup\$
    – SylvainD
    Sep 19, 2016 at 13:50
  • \$\begingroup\$ this will work for any python version >2.5? \$\endgroup\$
    – mou
    Sep 19, 2016 at 13:51
  • \$\begingroup\$ @mou no >=2.5, but you shouldn't be running Python2.5 \$\endgroup\$
    – Peilonrayz
    Sep 19, 2016 at 13:52
  • \$\begingroup\$ You can also use explicit relative imports without from __future__ import absolute_import, or import the module by its fully-qualified name with from whatever.core import translate. The future statement just turns off implicit relative imports. \$\endgroup\$ Sep 19, 2016 at 23:53

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