colab python mongoDB 言語処理

keyerror が出てうまくDBと接続できていないのか、コードが間違っているのでしょうか？

error
1---------------------------------------------------------------------------
2KeyError                                  Traceback (most recent call last)
3/usr/lib/python3.6/configparser.py in _unify_values(self, section, vars)
4   1137         try:
5-> 1138             sectiondict = self._sections[section]
6   1139         except KeyError:
7
8KeyError: 'mongo'
9
10During handling of the above exception, another exception occurred:
11
12NoSectionError                            Traceback (most recent call last)
134 frames
14<ipython-input-31-1444d8703338> in <module>()
15    157 
16    158 if __name__ == "__main__":
17--> 159   pd = load_politly_dic(SENTIDIC_COLLECTION_NAME)
18    160   print(pd.shape, pd.head(10))
19    161 
20
21<ipython-input-31-1444d8703338> in load_politly_dic(collection_name)
22     53 
23     54 def load_politly_dic(collection_name):
24---> 55     db = get_db(POLITELY_DICT_DB)
25     56     cursor = db[collection_name].find()
26     57     df = pd.DataFrame.from_dict(list(cursor)).astype(object)
27
28<ipython-input-31-1444d8703338> in get_db(db_name)
29     47   config.read(app_home + '/myvenv/lib/config.ini')
30     48   client = MongoClient('localhost')
31---> 49   client['admin'].authenticate(config.get('mongo', 'id'), config.get('mongo', 'password'))
32     50   # client = get_MongoClient()
33     51   db = client[db_name]
34
35/usr/lib/python3.6/configparser.py in get(self, section, option, raw, vars, fallback)
36    779         """
37    780         try:
38--> 781             d = self._unify_values(section, vars)
39    782         except NoSectionError:
40    783             if fallback is _UNSET:
41
42/usr/lib/python3.6/configparser.py in _unify_values(self, section, vars)
43   1139         except KeyError:
44   1140             if section != self.default_section:
45-> 1141                 raise NoSectionError(section)
46   1142         # Update with the entry specific variables
47   1143         vardict = {}
48
49NoSectionError: No section: 'mongo'