fixing bug where strings weren't indexed in match loop

1.02_ManipulatingDNAStrings.ipynb

@@ -50,7 +50,7 @@
     "    if not len(s1) == len(s2):\n",
     "        return False\n",
     "    for i in range(0, len(s1)):\n",
-    "        if not s1 == s2:\n",
+    "        if not s1[i] == s2[i]:\n",
     "            return False\n",
     "    return True\n",
     "match('ACCATTG', 'ACCATTG')"
@@ -164,21 +164,21 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3",
+   "display_name": "Python 2",
    "language": "python",
-   "name": "python3"
+   "name": "python2"
   },
   "language_info": {
    "codemirror_mode": {
     "name": "ipython",
-    "version": 3
+    "version": 2
    },
    "file_extension": ".py",
    "mimetype": "text/x-python",
    "name": "python",
    "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.4.3"
+   "pygments_lexer": "ipython2",
+   "version": "2.7.10"
   }
  },
  "nbformat": 4,