# scope_example.py
# Walker M. White (wmw2)
# August 30, 2016
"""Module to show how global variables work"""

a = 4 # Global variable

def get_a():
    """Returns: the value of the global variable a"""
    return a
    
def change_a():
    """Returns: the value of the local variable a"""
    a = 3.5
    return a