Question

This question is a bit dumb but I have to know it. Is there any way to use imported modules inside other imported modules?

I mean, if I do this:

-main file-

import os  
import othermodule  

othermodule.a()

-othermodule-

def a():
  return os.path.join('/', 'example') # Without reimporting the os module

The os module is not recognized by the file. Is there any way to “reuse” the os module?

Answer 1

There’s no need to do that, Python only loads modules once (unless you unload them).

But if you really have a situation in which a module can’t access the standard library (care to explain???), you can simply access the os module within the main module (e.g. mainfile.os, modules are just variables when imported into a module namespace).

If the os module is already loaded, you can also access it with sys.modules["os"].