          print('Test: General case, duplicates')
          linked_list.insert_to_front(1)
          linked_list.insert_to_front(3)
          linked_list.insert_to_front(1)
          linked_list.insert_to_front(1)
          linked_list.remove_dupes()
          assert_equal(linked_list.get_all_data(), [1, 3, 2])
  
 
</s> remove    "pygments_lexer": "ipython2",
   "version": "2.7.10"
 </s> add    "pygments_lexer": "ipython3",
   "version": "3.4.3" </s> remove     "version": 2
 </s> add     "version": 3 </s> remove    "name": "python2"
 </s> add    "name": "python3"
        linked_list.insert_to_front(1)
        linked_list.insert_to_front(3)
        linked_list.insert_to_front(2)
          print('Test: General case, duplicates')
          linked_list.insert_to_front(1)
        linked_list.insert_to_front(1)
        linked_list.insert_to_front(3)
        linked_list.insert_to_front(2)
          linked_list.insert_to_front(3)
          linked_list.insert_to_front(1)
          linked_list.insert_to_front(1)
          linked_list.remove_dupes()
          assert_equal(linked_list.get_all_data(), [1, 3, 2])
  
keep add keep keep keep keep keep keep
 Update remove dupes unit test to handle more cases. 
linked_lists/remove_duplicates/test_remove_duplicates.py