Lecture 28 - Excel with Python.ipynb

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   "source": [
    "import pandas as pd"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
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   "outputs": [],
   "source": [
    "# pip install xlrd\n",
    "# pip install openpyxl"
   ]
  },
  {
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   "execution_count": 3,
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   "outputs": [
    {
     "ename": "XLRDError",
     "evalue": "Unsupported format, or corrupt file: Expected BOF record; found b'\\n\\n\\n<!DOC'",
     "output_type": "error",
     "traceback": [
      "\u001b[0;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[0;31mXLRDError\u001b[0m                                 Traceback (most recent call last)",
      "\u001b[0;32m<ipython-input-3-4957f9c6e84c>\u001b[0m in \u001b[0;36m<module>\u001b[0;34m()\u001b[0m\n\u001b[0;32m----> 1\u001b[0;31m \u001b[0mxlsfile\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mpd\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mExcelFile\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m'Lec_28_test.xlsx'\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m",
      "\u001b[0;32m/Users/jspang/anaconda/lib/python3.4/site-packages/pandas/io/excel.py\u001b[0m in \u001b[0;36m__init__\u001b[0;34m(self, io, **kwds)\u001b[0m\n\u001b[1;32m    186\u001b[0m                 \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mbook\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mxlrd\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mopen_workbook\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mfile_contents\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mdata\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    187\u001b[0m             \u001b[0;32melse\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 188\u001b[0;31m                 \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mbook\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mxlrd\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mopen_workbook\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mio\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    189\u001b[0m         \u001b[0;32melif\u001b[0m \u001b[0mengine\u001b[0m \u001b[0;34m==\u001b[0m \u001b[0;34m'xlrd'\u001b[0m \u001b[0;32mand\u001b[0m \u001b[0misinstance\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mio\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mxlrd\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mBook\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    190\u001b[0m             \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mbook\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mio\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;32m/Users/jspang/anaconda/lib/python3.4/site-packages/xlrd/__init__.py\u001b[0m in \u001b[0;36mopen_workbook\u001b[0;34m(filename, logfile, verbosity, use_mmap, file_contents, encoding_override, formatting_info, on_demand, ragged_rows)\u001b[0m\n\u001b[1;32m    433\u001b[0m         \u001b[0mformatting_info\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mformatting_info\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m    434\u001b[0m         \u001b[0mon_demand\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mon_demand\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m--> 435\u001b[0;31m         \u001b[0mragged_rows\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mragged_rows\u001b[0m\u001b[0;34m,\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m    436\u001b[0m         )\n\u001b[1;32m    437\u001b[0m     \u001b[0;32mreturn\u001b[0m \u001b[0mbk\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;32m/Users/jspang/anaconda/lib/python3.4/site-packages/xlrd/book.py\u001b[0m in \u001b[0;36mopen_workbook_xls\u001b[0;34m(filename, logfile, verbosity, use_mmap, file_contents, encoding_override, formatting_info, on_demand, ragged_rows)\u001b[0m\n\u001b[1;32m     89\u001b[0m         \u001b[0mt1\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mtime\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mclock\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     90\u001b[0m         \u001b[0mbk\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mload_time_stage_1\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mt1\u001b[0m \u001b[0;34m-\u001b[0m \u001b[0mt0\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m---> 91\u001b[0;31m         \u001b[0mbiff_version\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mbk\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mgetbof\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mXL_WORKBOOK_GLOBALS\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m     92\u001b[0m         \u001b[0;32mif\u001b[0m \u001b[0;32mnot\u001b[0m \u001b[0mbiff_version\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m     93\u001b[0m             \u001b[0;32mraise\u001b[0m \u001b[0mXLRDError\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"Can't determine file's BIFF version\"\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;32m/Users/jspang/anaconda/lib/python3.4/site-packages/xlrd/book.py\u001b[0m in \u001b[0;36mgetbof\u001b[0;34m(self, rqd_stream)\u001b[0m\n\u001b[1;32m   1228\u001b[0m             \u001b[0mbof_error\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m'Expected BOF record; met end of file'\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m   1229\u001b[0m         \u001b[0;32mif\u001b[0m \u001b[0mopcode\u001b[0m \u001b[0;32mnot\u001b[0m \u001b[0;32min\u001b[0m \u001b[0mbofcodes\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m-> 1230\u001b[0;31m             \u001b[0mbof_error\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m'Expected BOF record; found %r'\u001b[0m \u001b[0;34m%\u001b[0m \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mmem\u001b[0m\u001b[0;34m[\u001b[0m\u001b[0msavpos\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0msavpos\u001b[0m\u001b[0;34m+\u001b[0m\u001b[0;36m8\u001b[0m\u001b[0;34m]\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m   1231\u001b[0m         \u001b[0mlength\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mget2bytes\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m   1232\u001b[0m         \u001b[0;32mif\u001b[0m \u001b[0mlength\u001b[0m \u001b[0;34m==\u001b[0m \u001b[0mMY_EOF\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;32m/Users/jspang/anaconda/lib/python3.4/site-packages/xlrd/book.py\u001b[0m in \u001b[0;36mbof_error\u001b[0;34m(msg)\u001b[0m\n\u001b[1;32m   1222\u001b[0m         \u001b[0;32mif\u001b[0m \u001b[0mDEBUG\u001b[0m\u001b[0;34m:\u001b[0m \u001b[0mprint\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m\"reqd: 0x%04x\"\u001b[0m \u001b[0;34m%\u001b[0m \u001b[0mrqd_stream\u001b[0m\u001b[0;34m,\u001b[0m \u001b[0mfile\u001b[0m\u001b[0;34m=\u001b[0m\u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mlogfile\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m   1223\u001b[0m         \u001b[0;32mdef\u001b[0m \u001b[0mbof_error\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0mmsg\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m:\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0;32m-> 1224\u001b[0;31m             \u001b[0;32mraise\u001b[0m \u001b[0mXLRDError\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m'Unsupported format, or corrupt file: '\u001b[0m \u001b[0;34m+\u001b[0m \u001b[0mmsg\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[0m\u001b[1;32m   1225\u001b[0m         \u001b[0msavpos\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0m_position\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n\u001b[1;32m   1226\u001b[0m         \u001b[0mopcode\u001b[0m \u001b[0;34m=\u001b[0m \u001b[0mself\u001b[0m\u001b[0;34m.\u001b[0m\u001b[0mget2bytes\u001b[0m\u001b[0;34m(\u001b[0m\u001b[0;34m)\u001b[0m\u001b[0;34m\u001b[0m\u001b[0m\n",
      "\u001b[0;31mXLRDError\u001b[0m: Unsupported format, or corrupt file: Expected BOF record; found b'\\n\\n\\n<!DOC'"
     ]
    }
   ],
   "source": [
    "xlsfile = pd.ExcelFile('Lec_28_test.xlsx')"
   ]
  },
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