Question

Greetings!
I’m creating a simple snake game. I want to expand my classes in different modules e.i. have menu class in a separate script from my main game loop. In other words, I want my imported script to take the pygame init which was called earlier in main script.

Here is a quick example using pseudo code of my problem:

one.py

def version():
    print pygame.version

In main.py i have imported pygame and did pygame.init(). From here, I also want to use the def version() from one.py

main.py

import pygame
import one

pygame.init()

one.version()

However, it gives me the no pygame defined error. I know the reason why it give me an error is because when the one.py is called from within the main.py, it doesnt retain the declarations from main.py.

What I want to know is a method to doing the mentioned above that will actually work.

Thank you!

Answer 1

The imports of the module that imports module X don’t leak through to X’s namespace (which is a good thing – it would either require dynamic scoping or C/C++-style #include, both are almost never useful and often even harmful). It’s a completely seperate namespace on its own. If you want to use something (e.g. pygame) in a module (e.g. one), import it there.