Mr

Whenever I am trying to import a module of my own making into my code, I get the 'Module not found' error. I've added all the necessary directories to pythonpath and marked them as Sourse roots, but pycharm gives me the same error, which i don't know how to solve. Here is my project structure:

And here is what happens when I try to run my code:

How do I fix this and what am I doing wrong?

Thank you for your help in advance!