Source Code for Module nltk.stem.wordnet

 1  # Natural Language Toolkit: Wordnet stemmer interface 
 2  # 
 3  # Copyright (C) 2001-2008 NLTK Project 
 4  # Author: Steven Bird <[email protected]> 
 5  #         Edward Loper <[email protected]> 
 6  # URL: <http://nltk.org> 
 7  # For license information, see LICENSE.TXT 
 8   
 9  from nltk.wordnet import morphy 
10   
11  from api import * 
12   
13 -class WordnetStemmer(StemmerI): 
14      """ 
15      A stemmer that uses Wordnet's built-in morphy function. 
16      """ 
17 -    def __init__(self): 
18          """ 
19          Create a new wordnet stemmer. 
20          """ 
21          pass 
22   
23 -    def stem(self, word): 
24          return morphy(word) 
25   
26 -    def __repr__(self): 
27          return '<WordnetStemmer>' 
28   
29  if __name__ == '__main__': 
30      from nltk import stem 
31      stemmer = stem.WordnetStemmer() 
32      print 'dogs ->', stemmer.stem('dogs') 
33      print 'churches ->', stemmer.stem('churches') 
34      print 'aardwolves ->', stemmer.stem('aardwolves') 
35      print 'abaci ->', stemmer.stem('abaci') 
36      print 'hardrock ->', stemmer.stem('hardrock') 
37