localstack-ext

What it is and what it does

localstack-ext is an extension package for LocalStack, the AWS service emulator framework. It builds on localstack-core to provide additional capabilities for developing and testing AWS applications locally without connecting to AWS. The package depends on a large ecosystem of AWS-related libraries (boto3, botocore, aws-encryption-sdk, aws-sam-translator) and infrastructure tools (alembic, dulwich, hypercorn) to support its extensions.

However, the repository is now archived and abandoned as of March 2026. The project has been consolidated into a unified LocalStack image, and this package is read-only. While it may still be installable and functional, there is no active maintenance, bug fixes, or feature development. Users are directed to use LocalStack's commercial offerings or the unified image instead.

Use it for:

• Local testing of AWS Lambda, S3, DynamoDB, and other AWS services during development without cloud costs.
• Integration testing of Terraform or CDK applications against a local AWS emulation layer.
• CI/CD pipeline testing where AWS service mocking is needed without external cloud dependencies.

Worth the install?

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

Provides extensions and additional functionality for LocalStack, a local AWS service emulator that runs in Docker.

No. The repository is archived and abandoned; the project has been consolidated into a unified LocalStack image. While the package may technically install, there is no active maintenance, and users are explicitly directed to migrate to LocalStack's commercial offerings or the unified image. The unclear license treatment and lack of maintenance support make this unsuitable for new projects.

Install

localstack-ext on PyPI

pip install localstack-ext

uv add localstack-ext

poetry add localstack-ext

Installing localstack-ext

Before you install

High install friction due to 82 runtime dependencies. Repository is archived and marked abandoned as of the latest release, with no active maintenance.

License in practice

License treatment is unclear (LicenseRef-All-Rights-Reserved); the package's actual licensing terms are not explicitly documented, creating uncertainty about permitted use.

Quickstart

pip install localstack-ext
import localstack_ext
# Requires localstack-core and Docker to be installed and running

Requires Docker to be installed and running; requires Python 3.13 (>=3.13,<3.14); the repository is archived and no longer maintained.

Verify before relying

• What specific extensions does localstack-ext provide beyond localstack-core?
• Is this package still functional given the archived repository status?
• What is the actual license and permitted use case given the unclear treatment?

Package facts

Evidence: localstack_ext-2026.3.0.tar.gz

Tags

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