You know how sometimes you have to read the same thing multiple times to get it? I wasn't understanding PYTHONPATH
For anyone in the future reading this who is as dumb as me:
Click the [X] in the upper right hand corner
Choose "Environment Variables" at the top
Click the + Button in the lower right
NAME = PYTHONPATH
VALUE = (the path to your python)
My current path would not work for anyone else, or on any other computer. But because this workflow is so specific to what I'm trying to do for myself, I don't plan on publishing it...