Cannot Locate my Module from another folder n python

I’ve the following structure in my simple python project:

MainFolder
|
├───authentication
│   └───apikey.py
|   └───tokengenerator.py
├───Functions
│   └───generatedata.py

The tokengenerator.py module produces Token variables and I need to call it in generatedata.pymodule and I used the following code line for this purpose:

from authentication.tokengenerator import Token

but it returns the error below:

Exception has occurred: ModuleNotFoundError
No module named 'authentication'

Would you please advise ?

Answer

from this article, you can add the path below the Functions folder to the searchpath for modules by adding .. (combined with the scriptpath)

import os
import sys

script_dir = os.path.dirname( __file__ )
mymodule_dir = os.path.join( script_dir, '..')
sys.path.append( mymodule_dir )

from authentication.tokengenerator import Token
token = Token()