def METHOD_NAME(question=None):
    if question is None:
        the_question = "Continue? (y or n):"
    else:
        the_question = question
    answer = '-1'
    while answer != 'y' and answer != 'n':
        answer = raw_input(the_question)
        answer = answer.lower()[0]
    if answer == 'n':
        sys.exit(0)