Standardize spacing code style (donnemartin#150)

Author: donnemartin

arrays_strings/reverse_string/reverse_string_solution.ipynb

@@ -100,9 +100,9 @@
     "        if chars is None or not chars:\n",
     "            return chars\n",
     "        size = len(chars)\n",
-    "        for i in range(size//2):\n",
-    "            chars[i], chars[size-1-i] = \\\n",
-    "                chars[size-1-i], chars[i]\n",
+    "        for i in range(size // 2):\n",
+    "            chars[i], chars[size - 1 - i] = \\\n",
+    "                chars[size - 1 - i], chars[i]\n",
     "        return chars"
    ]
   },
@@ -307,7 +307,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.5.0"
+   "version": "3.4.3"
   }
  },
  "nbformat": 4,

recursion_dynamic/hanoi/hanoi_solution.ipynb

@@ -107,9 +107,9 @@
     "    def _move_disks(self, num_disks, src, dest, buff):\n",
     "        if num_disks == 0:\n",
     "            return\n",
-    "        self.move_disks(num_disks-1, src, buff, dest)\n",
+    "        self.move_disks(num_disks - 1, src, buff, dest)\n",
     "        dest.push(src.pop())\n",
-    "        self.move_disks(num_disks-1, buff, dest, src)"
+    "        self.move_disks(num_disks - 1, buff, dest, src)"
    ]
   },
   {
@@ -220,7 +220,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.5.0"
+   "version": "3.4.3"
   }
  },
  "nbformat": 4,

sorting_searching/selection_sort/selection_sort_solution.ipynb

@@ -107,9 +107,9 @@
     "            raise TypeError('data cannot be None')\n",
     "        if len(data) < 2:\n",
     "            return data\n",
-    "        for i in range(len(data)-1):\n",
+    "        for i in range(len(data) - 1):\n",
     "            min_index = i\n",
-    "            for j in range(i+1, len(data)):\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",
@@ -121,7 +121,7 @@
     "            raise TypeError('data cannot be None')\n",
     "        if len(data) < 2:\n",
     "            return data\n",
-    "        for i in range(len(data)-1):\n",
+    "        for i in range(len(data) - 1):\n",
     "            self._swap(data, i, self._find_min_index(data, i))\n",
     "        return data\n",
     "\n",
@@ -137,12 +137,12 @@
     "            return\n",
     "        if start < len(data) - 1:\n",
     "            swap(data, start, self._find_min_index(data, start))\n",
-    "            self._sort_recursive(data, start+1)\n",
+    "            self._sort_recursive(data, start + 1)\n",
     "        return data\n",
     "\n",
     "    def _find_min_index(self, data, start):\n",
     "        min_index = start\n",
-    "        for i in range(start+1, len(data)):\n",
+    "        for i in range(start + 1, len(data)):\n",
     "            if data[i] < data[min_index]:\n",
     "                min_index = i\n",
     "        return min_index\n",
@@ -262,7 +262,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.5.0"
+   "version": "3.4.3"
   }
  },
  "nbformat": 4,