"""
Module lect13_2
Module documentation
Words go here
(they don't have to be triply-quoted strings, but you can see
    the appeal...

adapted from pp. 173-174, "Learning Python"
adapted by: Sharon M. Tuttle
last modified: 11-19-05
"""

spam = 40

def square(val):
    """
    function documentation
    can we have your liver then?
    """
    return val ** 2