      "        assert_equal(linked_list.get_all_data(), [2])\n",
      "\n",
      "        print('Test: General case, duplicates')\n",
      "        linked_list.insert_to_front(1)\n",
      "        linked_list.insert_to_front(3)\n",
      "        linked_list.insert_to_front(1)\n",
      "        linked_list.insert_to_front(1)\n",
      "        linked_list.remove_dupes()\n",
      "        assert_equal(linked_list.get_all_data(), [1, 3, 2])\n",
 
</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)\n",
    "        linked_list.insert_to_front(3)\n",
    "        linked_list.insert_to_front(2)\n",
      "        assert_equal(linked_list.get_all_data(), [2])\n",
      "\n",
      "        print('Test: General case, duplicates')\n",
      "        linked_list.insert_to_front(1)\n",
    "        linked_list.insert_to_front(1)\n",
    "        linked_list.insert_to_front(3)\n",
    "        linked_list.insert_to_front(2)\n",
      "        linked_list.insert_to_front(3)\n",
      "        linked_list.insert_to_front(1)\n",
      "        linked_list.insert_to_front(1)\n",
      "        linked_list.remove_dupes()\n",
      "        assert_equal(linked_list.get_all_data(), [1, 3, 2])\n",
keep keep keep add keep keep keep keep keep
 Update remove dupes unit test to handle more cases. 
linked_lists/remove_duplicates/remove_duplicates_challenge.ipynb