from collection import Collection
text = open('/home/pat/l/en/mobydick.txt','U').read()
words = text.split()

mobyindex = Collection()
for nth, word in enumerate(words):
 mobyindex[word] = nth

out = open('mobydex.txt', 'w')
for word, nths in mobyindex.items(): 
 out.write( word + ' ') 
 out.write( repr(nths) ) 
 out.write( '\n') 
out.close()