I don t really know about any remnant of their use in python2, see here is the thing: It is actually a folder inside my home directory so I guess I can access it using python 2 because it is just my home directory.
Can you check that the Python modules you want to use are in the PYTHONPATH?
To add directories with modules to your PYTHONPATH, you can do:
If a module is in the PYTHONPATH, for sure Python will find it when you import it.
Another thing to take into account is: did you install the modules that you want to use also for Python3? It might be the case that you installed them with Python2, now you moved to Python3 but the modules are not installed.