Python module installed in site-packages folder, but getting error "No module ..."
You are getting the error because you used pip. pip basically is for version 2 of python. for using it for pip3, you should first install pip3 package. Then copy all your dependencies to python3 libraries.
Hope that answers the question.
Using the Mac Os Terminal, I downloaded the Jupyter lightning module using "pip install lightning-python" in the /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages directory.
However, when I try to import it, I get the error, No module named 'lightning'
and when I list out the files in the site-packages directory, the module doesn't appear.