      "* Insert in a list with one element or more elements\n",
      "\n",
      "### Find\n",
      "\n",
      "* Find a NULL\n",
      "* Find in an empty list\n",
      "* Find in a list with one element or more matching elements\n",
      "* Find in a list with no matches\n",
      "\n",
      "### Delete\n",
 
</s>
    "* Find a None\n",
      "* Insert in a list with one element or more elements\n",
      "\n",
      "### Find\n",
      "\n",
    "* Find a None\n",
      "* Find in an empty list\n",
      "* Find in a list with one element or more matching elements\n",
      "* Find in a list with no matches\n",
      "\n",
      "### Delete\n",
keep keep keep keep replace keep keep keep keep keep
 Changed discussions of NULL to None to be more Pythonic.
linked_lists/linked_list/linked_list_solution.ipynb