Add missing directory creation for word cloud image output

1-Introduction/01-defining-data-science/solution/notebook.ipynb

@@ -555,24 +555,24 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 12,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [
     {
-     "ename": "FileNotFoundError",
-     "evalue": "[Errno 2] No such file or directory: 'images/ds_wordcloud.png'",
-     "output_type": "error",
-     "traceback": [
-      "\u001b[31m---------------------------------------------------------------------------\u001b[39m",
-      "\u001b[31mFileNotFoundError\u001b[39m                         Traceback (most recent call last)",
-      "\u001b[36mCell\u001b[39m\u001b[36m \u001b[39m\u001b[32mIn[12]\u001b[39m\u001b[32m, line 1\u001b[39m\n\u001b[32m----> \u001b[39m\u001b[32m1\u001b[39m \u001b[43mwc\u001b[49m\u001b[43m.\u001b[49m\u001b[43mgenerate\u001b[49m\u001b[43m(\u001b[49m\u001b[43mtext\u001b[49m\u001b[43m)\u001b[49m\u001b[43m.\u001b[49m\u001b[43mto_file\u001b[49m\u001b[43m(\u001b[49m\u001b[33;43m'\u001b[39;49m\u001b[33;43mimages/ds_wordcloud.png\u001b[39;49m\u001b[33;43m'\u001b[39;49m\u001b[43m)\u001b[49m\n",
-      "\u001b[36mFile \u001b[39m\u001b[32mc:\\Python313\\Lib\\site-packages\\wordcloud\\wordcloud.py:729\u001b[39m, in \u001b[36mWordCloud.to_file\u001b[39m\u001b[34m(self, filename)\u001b[39m\n\u001b[32m    716\u001b[39m \u001b[38;5;250m\u001b[39m\u001b[33;03m\"\"\"Export to image file.\u001b[39;00m\n\u001b[32m    717\u001b[39m \n\u001b[32m    718\u001b[39m \u001b[33;03mParameters\u001b[39;00m\n\u001b[32m   (...)\u001b[39m\u001b[32m    725\u001b[39m \u001b[33;03mself\u001b[39;00m\n\u001b[32m    726\u001b[39m \u001b[33;03m\"\"\"\u001b[39;00m\n\u001b[32m    728\u001b[39m img = \u001b[38;5;28mself\u001b[39m.to_image()\n\u001b[32m--> \u001b[39m\u001b[32m729\u001b[39m \u001b[43mimg\u001b[49m\u001b[43m.\u001b[49m\u001b[43msave\u001b[49m\u001b[43m(\u001b[49m\u001b[43mfilename\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43moptimize\u001b[49m\u001b[43m=\u001b[49m\u001b[38;5;28;43;01mTrue\u001b[39;49;00m\u001b[43m)\u001b[49m\n\u001b[32m    730\u001b[39m \u001b[38;5;28;01mreturn\u001b[39;00m \u001b[38;5;28mself\u001b[39m\n",
-      "\u001b[36mFile \u001b[39m\u001b[32mc:\\Python313\\Lib\\site-packages\\PIL\\Image.py:2566\u001b[39m, in \u001b[36mImage.save\u001b[39m\u001b[34m(self, fp, format, **params)\u001b[39m\n\u001b[32m   2564\u001b[39m         fp = builtins.open(filename, \u001b[33m\"\u001b[39m\u001b[33mr+b\u001b[39m\u001b[33m\"\u001b[39m)\n\u001b[32m   2565\u001b[39m     \u001b[38;5;28;01melse\u001b[39;00m:\n\u001b[32m-> \u001b[39m\u001b[32m2566\u001b[39m         fp = \u001b[43mbuiltins\u001b[49m\u001b[43m.\u001b[49m\u001b[43mopen\u001b[49m\u001b[43m(\u001b[49m\u001b[43mfilename\u001b[49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[33;43m\"\u001b[39;49m\u001b[33;43mw+b\u001b[39;49m\u001b[33;43m\"\u001b[39;49m\u001b[43m)\u001b[49m\n\u001b[32m   2567\u001b[39m \u001b[38;5;28;01melse\u001b[39;00m:\n\u001b[32m   2568\u001b[39m     fp = cast(IO[\u001b[38;5;28mbytes\u001b[39m], fp)\n",
-      "\u001b[31mFileNotFoundError\u001b[39m: [Errno 2] No such file or directory: 'images/ds_wordcloud.png'"
-     ]
+     "data": {
+      "text/plain": [
+       "<wordcloud.wordcloud.WordCloud at 0x2835dd5dbe0>"
+      ]
+     },
+     "execution_count": 14,
+     "metadata": {},
+     "output_type": "execute_result"
     }
    ],
    "source": [
+    "import os\n",
+    "\n",
+    "os.makedirs('images', exist_ok=True)\n",
     "wc.generate(text).to_file('images/ds_wordcloud.png')"
    ]
   },