Change deprecated pd.datetools.timedelta to datetime.timedelta

notebooks/04.14-Visualization-With-Seaborn.ipynb

@@ -1122,9 +1122,11 @@
     }
    ],
    "source": [
+    "import datetime\n",
+    "\n",
     "def convert_time(s):\n",
     "    h, m, s = map(int, s.split(':'))\n",
-    "    return pd.datetools.timedelta(hours=h, minutes=m, seconds=s)\n",
+    "    return datetime.timedelta(hours=h, minutes=m, seconds=s)\n",
     "\n",
     "data = pd.read_csv('marathon-data.csv',\n",
     "                   converters={'split':convert_time, 'final':convert_time})\n",