i have been trying to connect and work using python. But when i try listing databases it throws an error.
here is the code
# Importing the required libraries
import pymongo
# Connect to local MongoDB server
client = pymongo.MongoClient('mongodb://localhost:27017/')
# Client
client
client.list_database_names()
after this i get an error
---------------------------------------------------------------------------
ServerSelectionTimeoutError Traceback (most recent call last)
<ipython-input-6-62f658703d98> in <module>
----> 1 client.list_database_names()
~/.local/lib/python3.6/site-packages/pymongo/mongo_client.py in list_database_names(self, session, comment)
1784 .. versionadded:: 3.6
1785 """
-> 1786 return [doc["name"] for doc in self.list_databases(session, nameOnly=True, comment=comment)]
1787
1788 def drop_database(
~/.local/lib/python3.6/site-packages/pymongo/mongo_client.py in list_databases(self, session, comment, **kwargs)
1757 cmd["comment"] = comment
1758 admin = self._database_default_options("admin")
-> 1759 res = admin._retryable_read_command(cmd, session=session)
1760 # listDatabases doesn't return a cursor (yet). Fake one.
1761 cursor = {
~/.local/lib/python3.6/site-packages/pymongo/database.py in _retryable_read_command(self, command, value, check, allowable_errors, read_preference, codec_options, session, **kwargs)
763 )
764
--> 765 return self.__client._retryable_read(_cmd, read_preference, session)
766
767 def _list_collections(self, sock_info, session, read_preference, **kwargs):
~/.local/lib/python3.6/site-packages/pymongo/mongo_client.py in _retryable_read(self, func, read_pref, session, address, retryable)
1362 while True:
1363 try:
-> 1364 server = self._select_server(read_pref, session, address=address)
1365 with self._socket_from_server(read_pref, server, session) as (sock_info, read_pref):
1366 if retrying and not retryable:
~/.local/lib/python3.6/site-packages/pymongo/mongo_client.py in _select_server(self, server_selector, session, address)
1194 raise AutoReconnect("server %s:%d no longer available" % address)
1195 else:
-> 1196 server = topology.select_server(server_selector)
1197 return server
1198 except PyMongoError as exc:
~/.local/lib/python3.6/site-packages/pymongo/topology.py in select_server(self, selector, server_selection_timeout, address)
249 def select_server(self, selector, server_selection_timeout=None, address=None):
250 """Like select_servers, but choose a random server if several match."""
--> 251 servers = self.select_servers(selector, server_selection_timeout, address)
252 if len(servers) == 1:
253 return servers[0]
~/.local/lib/python3.6/site-packages/pymongo/topology.py in select_servers(self, selector, server_selection_timeout, address)
210
211 with self._lock:
--> 212 server_descriptions = self._select_servers_loop(selector, server_timeout, address)
213
214 return [self.get_server_by_address(sd.address) for sd in server_descriptions]
~/.local/lib/python3.6/site-packages/pymongo/topology.py in _select_servers_loop(self, selector, timeout, address)
227 raise ServerSelectionTimeoutError(
228 "%s, Timeout: %ss, Topology Description: %r"
--> 229 % (self._error_message(selector), timeout, self.description)
230 )
231
ServerSelectionTimeoutError: localhost:27017: [Errno 111] Connection refused, Timeout: 30s, Topology Description: <TopologyDescription id: 64cb7b71341a70310f04d71c, topology_type: Unknown, servers: [<ServerDescription ('localhost', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('localhost:27017: [Errno 111] Connection refused',)>]>