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  1. Python Driver
  2. PYTHON-5346

test_init_disconnected_with_srv cannot run against sharded Topologies

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    • Type: Icon: Build Failure Build Failure
    • Resolution: Fixed
    • Priority: Icon: Unknown Unknown
    • 4.12.1
    • Affects Version/s: None
    • Component/s: None
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    • Python Drivers
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      1. What would you like to communicate to the user about this feature? 2. Would you like the user to see examples of the syntax and/or executable code and its output? 3. Which versions of the driver/connector does this apply to?
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      Name of Failure:

      test.test_client.TestClient.test_init_disconnected_with_srv

      Link to task:

      https://spruce.mongodb.com/task/mongo_python_driver_other_hosts_rhel8_zseries_latest_test_sync_auth_ssl_sharded_cluster_patch_e2e673edeb711e24d7feb620e7552a2a7af2f0b0_680913f2c7ee9c000741f853_25_04_23_16_23_25?execution=0&sortBy=STATUS&sortDir=ASC

      Context of when and why the failure occurred:

      Intended behavior of MongoClient.address.

      Stack trace:

       [2025/04/23 10:10:12.482] FAILURE: pymongo.errors.InvalidOperation: Cannot use "address" property when load balancing among mongoses, use "nodes" instead. ()
 [2025/04/23 10:10:12.482] self = <test.test_client.TestClient testMethod=test_init_disconnected_with_srv>
 [2025/04/23 10:10:12.482]     @client_context.require_no_standalone
 [2025/04/23 10:10:12.482]     @client_context.require_no_load_balancer
 [2025/04/23 10:10:12.482]     @client_context.require_tls
 [2025/04/23 10:10:12.482]     def test_init_disconnected_with_srv(self):
 [2025/04/23 10:10:12.482]         c = self.rs_or_single_client(
 [2025/04/23 10:10:12.482]             "mongodb+srv://test1.test.build.10gen.cc", connect=False, tlsInsecure=True
 [2025/04/23 10:10:12.482]         )
 [2025/04/23 10:10:12.482]         # nodes returns an empty set if not connected
 [2025/04/23 10:10:12.482]         self.assertEqual(c.nodes, frozenset())
 [2025/04/23 10:10:12.482]         # topology_description returns the initial seed description if not connected
 [2025/04/23 10:10:12.482]         topology_description = c.topology_description
 [2025/04/23 10:10:12.482]         self.assertEqual(topology_description.topology_type, TOPOLOGY_TYPE.Unknown)
 [2025/04/23 10:10:12.482]         self.assertEqual(
 [2025/04/23 10:10:12.482]             {
 [2025/04/23 10:10:12.482]                 ("test1.test.build.10gen.cc", None): ServerDescription(
 [2025/04/23 10:10:12.482]                     ("test1.test.build.10gen.cc", None)
 [2025/04/23 10:10:12.482]                 )
 [2025/04/23 10:10:12.482]             },
 [2025/04/23 10:10:12.482]             topology_description.server_descriptions(),
 [2025/04/23 10:10:12.482]         )
 [2025/04/23 10:10:12.482]     
 [2025/04/23 10:10:12.482]         # address causes client to block until connected
 [2025/04/23 10:10:12.482] >       self.assertIsNotNone(c.address)
 [2025/04/23 10:10:12.482] test/test_client.py:850: 
 [2025/04/23 10:10:12.482] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
 [2025/04/23 10:10:12.482] self = MongoClient(host=['localhost.test.build.10gen.cc:27017', 'localhost.test.build.10gen.cc:27018'], document_class=dict, ...', tlsinsecure=True, tlsallowinvalidhostnames=True, tlsdisableocspendpointcheck=True, tlsallowinvalidcertificates=True)
 [2025/04/23 10:10:12.482]     @property
 [2025/04/23 10:10:12.482]     def address(self) -> Optional[tuple[str, int]]:
 [2025/04/23 10:10:12.482]         """(host, port) of the current standalone, primary, or mongos, or None.
 [2025/04/23 10:10:12.482]     
 [2025/04/23 10:10:12.482]         Accessing :attr:`address` raises :exc:`~.errors.InvalidOperation` if
 [2025/04/23 10:10:12.482]         the client is load-balancing among mongoses, since there is no single
 [2025/04/23 10:10:12.482]         address. Use :attr:`nodes` instead.
 [2025/04/23 10:10:12.482]     
 [2025/04/23 10:10:12.482]         If the client is not connected, this will block until a connection is
 [2025/04/23 10:10:12.482]         established or raise ServerSelectionTimeoutError if no server is
 [2025/04/23 10:10:12.482]         available.
 [2025/04/23 10:10:12.482]     
 [2025/04/23 10:10:12.482]         .. versionadded:: 3.0
 [2025/04/23 10:10:12.482]         """
 [2025/04/23 10:10:12.482]         if self._topology is None:
 [2025/04/23 10:10:12.482]             self._get_topology()
 [2025/04/23 10:10:12.482]         topology_type = self._topology._description.topology_type
 [2025/04/23 10:10:12.482]         if (
 [2025/04/23 10:10:12.482]             topology_type == TOPOLOGY_TYPE.Sharded
 [2025/04/23 10:10:12.482]             and len(self.topology_description.server_descriptions()) > 1
 [2025/04/23 10:10:12.482]         ):
 [2025/04/23 10:10:12.482] >           raise InvalidOperation(
 [2025/04/23 10:10:12.482]                 'Cannot use "address" property when load balancing among'
 [2025/04/23 10:10:12.482]                 ' mongoses, use "nodes" instead.'
 [2025/04/23 10:10:12.482]             )
 [2025/04/23 10:10:12.482] E           pymongo.errors.InvalidOperation: Cannot use "address" property when load balancing among mongoses, use "nodes" instead.
 [2025/04/23 10:10:12.482] pymongo/synchronous/mongo_client.py:1593: InvalidOperation

            Assignee:
            noah.stapp@mongodb.com Noah Stapp
            Reporter:
            noah.stapp@mongodb.com Noah Stapp
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              Created:
              Updated:
              Resolved: