Sample usage for collections

Collections

>>> import nltk
>>> from nltk.collections import *

Trie

Trie can be pickled:

>>> import pickle
>>> trie = nltk.collections.Trie(['a'])
>>> s = pickle.dumps(trie)
>>> pickle.loads(s)
{'a': {True: None}}

LazyIteratorList

Fetching the length of a LazyIteratorList object does not throw a StopIteration exception:

>>> lil = LazyIteratorList(i for i in range(1, 11))
>>> lil[-1]
10
>>> len(lil)
10