          if node is None:
              return
          for key, child in node.children.items():
              if child.terminates:
                  result.append(curr_word+key)
              self._list_words(child, curr_word+key, result) 
</s> remove from nose.tools import assert_equal
 </s> add import unittest </s> remove         self._bubble_up(index=len(self.array)-1)
 </s> add         self._bubble_up(index=len(self.array) - 1)
          if node is None:
              return
          for key, child in node.children.items():
              if child.terminates:


keep keep keep keep replace replace
 #273: Remove nose dependency for graphs_trees/ (#277) 
graphs_trees/trie/trie.py