Python: Sharing global variables between modules and classes therein

Question

I know that it\'s possible to share a global variable across modules in Python. However, I would like to know the extent to which this is possible and why. For example,

Answer 1

To solve this problem, just change from global_mod import * to import global_mod.

And the new mid_access_mod.py will be:

import global_mod

class delta:
    def __init__(self):
        print global_mod.x

The reason for that could be found here.

Due to the way references and name binding works in Python, if you want to update some symbol in a module, say foo.bar, from outside that module, and have other importing code "see" that change, you have to import foo a certain way.