      test.test_shortest_path()
  
  
  if __name__ == '__main__':
      main() 
</s> remove     main() </s> add 
      test.test_shortest_path()
  
  
  if __name__ == '__main__':

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