Question

I’m using a virtualenv. (mentioned in case it matters)
My goal is to import TT.TruthTable into tests.
My hunch was to use from lab import TT as that statement mirrors one in a similar project/setup i’m working on. Could there be something else amiss.

lab03/
     lab/
        TT.py
        __init__.py
     test/
         tests.py
         __init__.py


>>> cat TT.py

    class TruthTable...

Answer 1

Then lab03/ (absolute path) should be added to your PYTHONPATH. Simply using a virtualenv isnt enough because it only sets up its own lib/python.x/site-packages in the path.

You can either modify your environment via: export PYTHONPATH=$PYTHONPATH:/path/to/lab03

Or, you can add it in code:

import sys
sys.path.append("/path/to/lab03")
from lab import TT