gistfile1.txt

word_count = dict()
word_file = open('text.txt',r)
for line in word_file:
    for word in line.split(' '):
        word_count[word] = word_count.get(word,0)+1

words = word_count.keys()
words.sort(lambda a,b: cmp(word_count[a],word_count[b]))
print words.join('\n')