Source code for nltk.stem.api
# Natural Language Toolkit: Stemmer Interface
#
# Copyright (C) 2001-2015 NLTK Project
# Author: Trevor Cohn <[email protected]>
# Edward Loper <[email protected]>
# Steven Bird <[email protected]>
# URL: <http://nltk.org/>
# For license information, see LICENSE.TXT
[docs]class StemmerI(object):
"""
A processing interface for removing morphological affixes from
words. This process is known as stemming.
"""
[docs] def stem(self, token):
"""
Strip affixes from the token and return the stem.
:param token: The token that should be stemmed.
:type token: str
"""
raise NotImplementedError()
if __name__ == "__main__":
import doctest
doctest.testmod(optionflags=doctest.NORMALIZE_WHITESPACE)