"ImportError: No module named" errror

[campopianoa]

See this post as I think it is related or may be the same issue:

How can I make modules on the client side accessible by all forms

I’m truly trying to really understand this but then, let me explain what I wish to do. The navigation module was created to work with the HomeForm and perform the functions as seen. I want a peculiar scenario whereby after a user adds measurement, it goes refreshes and goes back to the home form. The link taught how to import modules but it didn’t tell how to import a form with a child being a module. I will look up this circular imports though.