topology_description – An object representation of a deployment of MongoDB servers.

Represent a deployment of MongoDB servers.

class pymongo.topology_description.TopologyDescription

Representation of a deployment of MongoDB servers.

Parameters:

• topology_type: initial type
• server_descriptions: dict of (address, ServerDescription) for all seeds
• replica_set_name: replica set name or None
• max_set_version: greatest setVersion seen from a primary, or None
• max_election_id: greatest electionId seen from a primary, or None
• topology_settings: a TopologySettings

has_readable_server(read_preference=ReadPreference.PRIMARY)

Does this topology have any readable servers available matching the given read preference?

Parameters:

• read_preference: an instance of a read preference from read_preferences. Defaults to PRIMARY.

Note

When connected directly to a single server this method always returns True.

New in version 3.4.

has_writable_server()

Does this topology have a writable server available?

Note

When connected directly to a single server this method always returns True.

New in version 3.4.

server_descriptions()

Dict of (address, ServerDescription).

topology_type

The type of this topology.

topology_type_name

The topology type as a human readable string.

New in version 3.4.