code: def test_punkt_tokenize_words_handles_stop_iteration_exception(self):
      obj = punkt.PunktBaseClass()
  
      class TestPunktTokenizeWordsMock:
          def word_tokenize(self, s):
              return iter([])
  
      obj._lang_vars = TestPunktTokenizeWordsMock()
      # unpack generator, ensure that no error is raised
      list(obj._tokenize_words("test"))
  
imports: from typing import List, Tuple
  import pytest
  from nltk.tokenize import LegalitySyllableTokenizer, StanfordSegmenter, SyllableTokenizer, TreebankWordTokenizer, TweetTokenizer, punkt, sent_tokenize, word_tokenize
  from nltk.tokenize.simple import CharTokenizer
label_desc: Use image node_id 17 for calling the TestTokenize obj's underlying member method code with example usage: obj.test_punkt_tokenize_words_handles_stop_iteration_exception() and returns: iter