"""
A module to show off how to "parse" a comma-separated list.

This module only contains one function.  You should study this function
as you may find it helpful for Lab 2 (and therefore Assignment 1).

Author: Walker M. White
Date:   August 31, 2017 (Python 3 Version)
"""

def second_in_list(s):
    """
    Returns: second item in comma-separated list
    
    The final result does not have any whitespace on edges.
    
    Parameter s: The list of items
    Precondition: s is a string of items separated by commas.
    """
    startcomma = s.index(',')
    tail = s[startcomma+1:]
    
    endcomma = tail.index(',')
    item = tail[:endcomma].strip()  # Correct version
    #item = tail[:endcomma]         # Compare this one
    return item