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Python client library | Google Cloud

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Helper functions for dealing with Cloud Datastore’s Protobuf API.

The non-private functions are part of the API.

Bases: object

Simple container for a geo point value.

• Parameters

  • latitude (float) – Latitude of a point.

  • longitude (float) – Longitude of a point.

Compare two geo points for equality.

• Return type

  bool

• Returns

  True if the points compare equal, else False.

Compare two geo points for inequality.

• Return type

  bool

• Returns

  False if the points compare equal, else True.

Convert the current object to protobuf.

• Return type

  google.type.latlng_pb2.LatLng.

• Returns

  The current point as a protobuf.

Factory method for creating an entity based on a protobuf.

The protobuf should be one returned from the Cloud Datastore Protobuf API.

• Parameters

  pb (entity_pb2.Entity) – The Protobuf representing the entity.

• Return type

  google.cloud.datastore.entity.Entity

• Returns

  The entity derived from the protobuf.

Converts an entity into a protobuf.

• Parameters

  entity (google.cloud.datastore.entity.Entity) – The entity to be turned into a protobuf.

• Return type

  entity_pb2.Entity

• Returns

  The protobuf representing the entity.

Validate rules for read options, and assign to the request.

Helper method for lookup() and run_query.

• Parameters

  • eventual (bool) – Flag indicating if EVENTUAL or STRONG consistency should be used.

  • transaction_id (bytes) – A transaction identifier (may be null).

• Return type

  datastore_pb2.ReadOptions

• Returns

  The read options corresponding to the inputs.

• Raises

  ValueError if eventual is True and the transaction_id is not None.

Factory method for creating a key based on a protobuf.

The protobuf should be one returned from the Cloud Datastore Protobuf API.

• Parameters

  pb (entity_pb2.Key) – The Protobuf representing the key.

• Return type

  google.cloud.datastore.key.Key

• Returns

  a new Key instance

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Last updated 2025-08-07 UTC.

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