google-cloud-pubsublite

What it is and what it does

google-cloud-pubsublite is the official Python client for Google Cloud Pub/Sub Lite, a managed messaging service that decouples message producers from consumers. It provides publisher and subscriber APIs to send and receive messages through topics, enabling reliable asynchronous communication between distributed applications.

Pub/Sub Lite differs from standard Google Cloud Pub/Sub by offering partitioned zonal data storage with predefined capacity, making it suitable for workloads with predictable throughput patterns. The library wraps the underlying gRPC API and depends on google-cloud-pubsub, grpcio, and google-api-core to handle authentication, transport, and protocol details. It supports Python 3.8 and later versions.

Use it for:

• Building event-driven architectures where applications publish events to topics and multiple subscribers consume them independently.
• Implementing reliable message queuing for microservices that need decoupled, asynchronous communication.
• Streaming data pipelines where producers and consumers operate at different rates and need buffering.
• Real-time data ingestion systems that require partitioned storage with known capacity planning.
• Integrating with Google Cloud Dataflow or other GCP services for event processing workflows.

Worth the install?

AI-flagged interpretation of the facts on this page — verify before relying

Python client library for Google Cloud Pub/Sub Lite, providing asynchronous messaging between applications with partitioned zonal data storage and predefined capacity.

Yes. This is the official, actively maintained client for Pub/Sub Lite with low install friction, permissive licensing, no known vulnerabilities, and broad Python version support. Install it if you are building on Google Cloud Pub/Sub Lite; if you need standard Pub/Sub instead, use google-cloud-pubsub. Verify that Pub/Sub Lite's partitioned zonal model and usage caveats fit your workload before committing.

Install

google-cloud-pubsublite on PyPI

pip install google-cloud-pubsublite

uv add google-cloud-pubsublite

poetry add google-cloud-pubsublite

Installing google-cloud-pubsublite

Before you install

Low friction installation via pip; actively maintained with recent releases. Depends on standard Google Cloud libraries (google-cloud-pubsub, grpcio, google-api-core) and proto-plus, all widely used and stable.

License in practice

Licensed under Apache 2.0 (permissive), allowing free use, modification, and distribution in both open-source and commercial projects with minimal restrictions.

Quickstart

pip install google-cloud-pubsublite

from google.cloud.pubsublite.admin_client import AdminClient
from google.cloud.pubsublite.publisher_client import PublisherClient

admin = AdminClient()
publisher = PublisherClient()

Requires Google Cloud project with Pub/Sub Lite API enabled and authentication configured (service account key or Application Default Credentials).

Verify before relying

• Whether the package supports async/await patterns or only callback-based publishing and subscribing.
• Performance characteristics and throughput limits compared to standard Google Cloud Pub/Sub.
• Whether automatic message batching and flow control are configurable.

Package facts

Evidence: google_cloud_pubsublite-1.13.0-py3-none-any.whl

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