Is it possible to deliver different source distributions for different Python versions?

Stefan Behnel stefan_ml at
Mon Apr 6 07:46:11 CEST 2015

Dave Hein schrieb am 05.04.2015 um 22:38:
> I would like to distribute a python package with different code for
> Python 2.* than for Python 3.*. (Mostly this is because of different
> unicode string handling).
> There is nothing in to setuptools or PyPi that directly supports
> this scenario.
> But perhaps there could be some script run at install time that moves
> the correct source code to the right location? In other works, if I
> included both source code versions in the distribution (in a src2 and
> a src3 subdirectory) then a function invoked at install time could
> detect the python version and copy the appropriate source code to the
> right location.
> Is that at all possible? Is there some install time hook that lets me
> supply custom installation code?

Sure. You can simply change the directory in which distutils looks for your
Python code:

However, in general, you shouldn't be doing this. It's usually easier
(definitely in the long-term) to keep your sources cross-Py2.x/3.x
compatible, maybe with the help of tools like "six" or "python-future",
than to try to keep separate source trees in sync.


More information about the Python-list mailing list