  from nose.tools import assert_true
  from nose.tools import raises
  
  
  class TestTrie(object):       
  
      def test_trie(self):
 
</s> remove class TestTrie(object):       
 </s> add class TestTrie(unittest.TestCase):        </s> remove from nose.tools import assert_equal
from nose.tools import assert_true
 </s> add import unittest </s> remove from nose.tools import assert_equal
from nose.tools import raises
 </s> add import unittest </s> remove from nose.tools import assert_equal
from nose.tools import raises
 </s> add import unittest </s> remove from nose.tools import assert_equal
from nose.tools import raises
 </s> add import unittest
import unittest
import unittest
import unittest
  
  
  class TestTrie(object):       
  
      def test_trie(self):
replace replace keep keep keep keep keep
 #273: Remove nose dependency for graphs_trees/ (#277) 
graphs_trees/trie/test_trie.py