[Tutor] downloading modules for both python 2 and 3

[Peter Otten]

Benjamin Fishbein wrote:

> I’ve been writing an app using Kivy, and now I want to test it out on an
> iPhone. However, this can currently only be done in Python 2.
> https://kivy.org/docs/guide/packaging-ios.html
> <https://kivy.org/docs/guide/packaging-ios.html> But when I import kivy in
> Python2, I get an ImportError. ImportError: No module named kivy So I need
> to install kivy for Python 2. But when I do:
> sudo pip install kivy
> I get the following:
> Requirement already satisfied: requests in
> ./anaconda/lib/python3.5/site-packages (from Kivy-Garden>=0.1.4->kivy)
> 
> Do you know how I can convince my computer to download a module for Python
> 2 when I already have it for Python 3?

On my (Linux) system there are multiple versions of pip, called pip2, pip3, 
pip3.7; you might look for those.

Or you try to pick the desired interpreter with

$ sudo /path/to/desired/python -m pip install kivy