Using and modifying global variables across multiple modules in Python
Question: Python is my newest language (Python-2.6), my background is in C/C++.
Normally, I would create a global variable and be able to modify and access it
across all of my files. I am trying to achieve that same functionality in
python.

Based off of this post: [Python - Visibility of global variables in imported
modules](http://stackoverflow.com/questions/15959534/python-visibility-of-
global-variables-in-imported-modules) I see that "Globals in Python are global
to a module, not across all modules". I have multiple variables that rely on
user input, and must be accessed and modified by four different modules and in
the main code, which is why I am trying to use global(ish) variables in
Python.

I have two attemps to make this work:

1) If I stick the code with the modifiable global variables in my main code, I
run into the issue of "Executing the Main Module Twice" as detailed here:
<http://python-
notes.curiousefficiency.org/en/latest/python_concepts/import_traps.html> The
program works, other than being executed twice.

2) If I create a separate module and put the variables into a function, I find
that I have undefined variables in my other modules and my code will error
out. From steping through the code, I see that when the variables are
accessible/modifiable by moduleA, but then everything breaks when moduleB and
moduleC try to use them, because the modifications did not stay.

How do I utilize Python to suit my needs? I believe my problem lies with
attempting to use global variables and importing the global variables


Answer: To solve this issue, I stopped trying to use global variables across multiple
modules in my main code and stopped importing individual variables. I
basically ended up placing moduleA(a single function) within moduleB. I
created a class within moduleB for the functions I needed. The main code and
moduleC now accesses those functions.

I still use global variables though, within the functions in moduleB. If I
made the variables not global I got attribute errors.

