can't install gi?

[Caltonian2]

I've tried so many different ways to access this module and yet when I run the ./run.sh in the target folder I get the following:
Traceback (most recent call last):
File "scripts/sc-controller", line 11, in
import gi
ImportError: No module named gi

trying to run 'pip install gi' won't work, trying to install it via python-gi won't work, trying to install various python related things won't work, and it seems like the computer thinks the thing is already installed when it isn't.
What should I be doing?