8.4

# #!/usr/bin/python
#
# By dvdjaco
# Exercise 8.4
#

fhand = open('romeo.txt')
wordlist = []
for line in fhand:
        words = line.split()
        for word in words:
                word = str.lower(word) #lowercase strings before comparing
                if word in wordlist: continue
                wordlist.append(word)

wordlist.sort()
print wordlist