larsmans/nltk — comment on commit 0faef14b4a69b321210bb4cf15fd7e6902a36915
File:  line 0
By larsmans:

Alright, I force-pushed a version that uses `izip`. Note that `log_likelihood` also uses `zip`, though, and if the sets are really huge than Numpy would be the tool of choice instead of NLTK.