python 3 the hard way exe 25

#http://learnpythonthehardway.org/book/ex25.html
#very powerful stuff... the code runs but I think there are some issues with python 2.7 and 3.3 here.
#not sure
#need to investigate

def break_words(stuff):
    """This function will break up words for us"""
    words =stuff.split(' ')
    return words

def sort_words(words):
    """sort the words"""
    return sorted(words)

def print_first_word(words):
    """print the first word after popping it off"""
    words =words.pop(0)
    print ("word")

def print_last_word(words):
    """ Prints the last word after popping it off"""
    words = words.pop(-1)
    print ("word")


def sort_sentence(sentence):
    """Prints the first and last words of the sentence. """
    words = break_words(sentence)
    print_first_word(words)
    print_last_word(words)

def print_first_and_last_sorted(sentence):
    """Sorts the words then prints the first and last one. """
    words = sort_sentence(sentence)
    print_first_word(words)
    print_last_word(words)