      "        if data is None:\n",
      "            raise TypeError('data cannot be None')\n",
      "        if len(data) < 2:\n",
      "            return data\n",
      "        for i in range(len(data)-1):\n",
      "            min_index = i\n",
      "            for j in range(i+1, len(data)):\n",
      "                if data[j] < data[min_index]:\n",
      "                    min_index = j\n",
      "            if data[min_index] < data[i]:\n",
 
</s> remove     "            for j in range(i+1, len(data)):\n",
 </s> add     "            for j in range(i + 1, len(data)):\n", </s> remove     "        self.move_disks(num_disks-1, buff, dest, src)"
 </s> add     "        self.move_disks(num_disks - 1, buff, dest, src)"
    "        for i in range(len(data) - 1):\n",
      "        if data is None:\n",
      "            raise TypeError('data cannot be None')\n",
      "        if len(data) < 2:\n",
      "            return data\n",
    "        for i in range(len(data) - 1):\n",
      "            min_index = i\n",
      "            for j in range(i+1, len(data)):\n",
      "                if data[j] < data[min_index]:\n",
      "                    min_index = j\n",
      "            if data[min_index] < data[i]:\n",
keep keep keep keep replace keep keep keep keep keep
 Standardize spacing code style (#150) 
sorting_searching/selection_sort/selection_sort_solution.ipynb