fixed word_to_ix bug

Author: rguthrie3

Deep Learning for Natural Language Processing with Pytorch.ipynb

@@ -1445,7 +1445,7 @@
     "things called data. The evolution of a process is directed by a pattern of rules\n",
     "called a program. People create programs to direct processes. In effect,\n",
     "we conjure the spirits of the computer with our spells.\"\"\".split()\n",
-    "word_to_ix = { word: i for i, word in enumerate(raw_text) }\n",
+    "word_to_ix = { word: i for i, word in enumerate(set(raw_text)) }\n",
     "data = []\n",
     "for i in xrange(2, len(raw_text) - 2):\n",
     "    context = [ raw_text[i-2], raw_text[i-1], raw_text[i+1], raw_text[i+2] ]\n",
@@ -2247,7 +2247,7 @@
  "metadata": {
   "kernelspec": {
    "display_name": "Python 2",
-   "language": "python2",
+   "language": "python",
    "name": "python2"
   },
   "language_info": {