Python script not showing data

[rahul15111990]

Traceback (most recent call last):
File "./zabbix-mongodb.py", line 243, in
mongodb.get_db_names()
File "./zabbix-mongodb.py", line 73, in get_db_names
master = db_handler.command('isMaster')['ismaster']
File "/home/rahul/.local/lib/python2.7/site-packages/pymongo/database.py", line 730, in command
read_preference, session) as (sock_info, slave_ok):
File "/usr/lib/python2.7/contextlib.py", line 17, in enter
return self.gen.next()
File "/home/rahul/.local/lib/python2.7/site-packages/pymongo/mongo_client.py", line 1300, in _socket_for_reads
with self._get_socket(server, session) as sock_info:
File "/usr/lib/python2.7/contextlib.py", line 17, in enter
return self.gen.next()
File "/home/rahul/.local/lib/python2.7/site-packages/pymongo/mongo_client.py", line 1222, in _get_socket
self.__all_credentials, checkout=exhaust) as sock_info:
File "/usr/lib/python2.7/contextlib.py", line 17, in enter
return self.gen.next()
File "/home/rahul/.local/lib/python2.7/site-packages/pymongo/pool.py", line 1138, in get_socket
sock_info.check_auth(all_credentials)
File "/home/rahul/.local/lib/python2.7/site-packages/pymongo/pool.py", line 712, in check_auth
auth.authenticate(credentials, self)
File "/home/rahul/.local/lib/python2.7/site-packages/pymongo/auth.py", line 564, in authenticate
auth_func(credentials, sock_info)
File "/home/rahul/.local/lib/python2.7/site-packages/pymongo/auth.py", line 541, in _authenticate_default
return _authenticate_scram(credentials, sock_info, 'SCRAM-SHA-1')
File "/home/rahul/.local/lib/python2.7/site-packages/pymongo/auth.py", line 263, in _authenticate_scram
res = sock_info.command(source, cmd)
File "/home/rahul/.local/lib/python2.7/site-packages/pymongo/pool.py", line 613, in command
user_fields=user_fields)
File "/home/rahul/.local/lib/python2.7/site-packages/pymongo/network.py", line 167, in command
parse_write_concern_error=parse_write_concern_error)
File "/home/rahul/.local/lib/python2.7/site-packages/pymongo/helpers.py", line 159, in _check_command_response
raise OperationFailure(msg % errmsg, code, response)
pymongo.errors.OperationFailure: Authentication failed.

[Ineptsmeagol]

the messages shows that authentication failed pymongo.errors.OperationFailure: Authentication failed.