scoping.py

# This is module A

colton_salary = 900000

def print_hello():
    print "hello"
    
class Employee:
    def __init__(self):
        self.salary = colton_salary - 5000


# This is module B

import A
employee = A.Employee()

# This is crashing because colton_salary isn't defined!?

Turns out this doesn't crash as written. I was using variable names that began with __ which conflicted with python's name mangling. (I was using it for name mangling too. I've since switched to another form of name mangling that doesn't conflict.)