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Showing content from https://cloud.google.com/python/docs/reference/spanner/1.12.0/google.cloud.spanner_v1.client.html below:

Module client (1.12.0) | Python client library

Module client (1.12.0)

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Parent client for calling the Cloud Spanner API.

This is the base from which all interactions with the API occur.

In the hierarchy of API concepts

Classes Client
Client(project=None, credentials=None, client_info=<google.api_core.gapic_v1.client_info.ClientInfo object>, user_agent=None, client_options=None)

Client for interacting with Cloud Spanner API.

Note: Since the Cloud Spanner API requires the gRPC transport, no _http argument is accepted by this class. Parameters Name Description project str or unicode

(Optional) The ID of the project which owns the instances, tables and data. If not provided, will attempt to determine from the environment.

credentials Credentials or :data:NoneType

(Optional) The authorization credentials to attach to requests. These credentials identify this application to the service. If none are specified, the client will attempt to ascertain the credentials from the environment.

client_info google.api_core.gapic_v1.client_info.ClientInfo

(Optional) The client info used to send a user-agent string along with API requests. If None, then default info will be used. Generally, you only need to set this if you're developing your own library or partner tool.

user_agent str

(Deprecated) The user agent to be used with API request. Not used.

client_options google.api_core.client_options.ClientOptions or dict

(Optional) Client options used to set user options on the client. API Endpoint should be set through client_options.

Exceptions Type Description `ValueErro InstanceConfig
InstanceConfig(name, display_name)

Named configurations for Spanner instances.

Parameters Name Description name str

ID of the instance configuration

display_name str

Name of the instance configuration

Except as otherwise noted, the content of this page is licensed under the Creative Commons Attribution 4.0 License, and code samples are licensed under the Apache 2.0 License. For details, see the Google Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-08-14 UTC.

[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[],[]]


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