def findMinWidth(list):
    """
    Finds and returns the length of the longest string in list
    Parameter: (list) containing strings
    Return: (int) length of longest string in list
    """
    longest = ""
    for item in list:
        item = str(item) # Can't use len() on int
        if len(longest) < len(item):
            longest = item
    return len(longest)