webassets

What it is and what it does

Webassets is an asset management library for Python web applications that bundles, minifies, and compresses JavaScript and CSS files into optimized static assets. It depends on pyyaml and zope-dottedname and is designed to integrate with various Python web frameworks, reducing the size and number of HTTP requests for frontend resources.

The package is classified as Alpha and has been in development since 2010. It supports current Python versions (3.10+) and carries a permissive BSD license. The project remains active despite infrequent releases, with recent repository activity suggesting ongoing maintenance.

Use it for:

• Merge multiple JavaScript files into a single compressed bundle to reduce HTTP requests in production deployments.
• Automatically minify and compress CSS stylesheets as part of a web application build pipeline.
• Integrate asset management into a Python web framework to serve optimized static files with cache-busting filenames.
• Combine development-time asset organization with production-ready compression and versioning.
• Manage asset compilation workflows for projects using multiple JavaScript or CSS source files.

Worth the install?

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

Merges and compresses JavaScript and CSS files for web applications, providing asset management with integration points for various Python web frameworks.

Yes, with conditions. Webassets is worth installing if you need straightforward asset bundling and compression in a Python web application and can tolerate the aging release cycle. The low install friction, permissive license, and active repository support its use. However, verify that its supported frameworks match your stack and that the infrequent release schedule aligns with your maintenance expectations.

Install

webassets on PyPI

pip install webassets

uv add webassets

poetry add webassets

Installing webassets

Before you install

Low install friction with a pure-Python wheel. Maintenance status is aging—last release was 362 days ago—but the repository remains active with a recent commit on 2025-08-17 and no archived status, suggesting the project is maintained despite infrequent releases.

License in practice

BSD license is permissive, imposing no significant restrictions on use, modification, or distribution in proprietary or open-source projects.

Quickstart

pip install webassets

from webassets import Environment
env = Environment('.', url='/')
env.register('js_all', 'js/jquery.js', 'js/base.js', output='gen/packed.js')

Requires Python 3.10 or later. Development and testing of some filters (e.g., Google Closure) require Java 7 or later, though runtime use may not.

Verify before relying

• Whether the package works reliably with current versions of pyyaml and zope-dottedname without known incompatibilities.
• Whether the aging maintenance status indicates planned maintenance or de facto dormancy.
• What specific web frameworks are supported and whether that support is current.

Package facts

Evidence: webassets-3.0.0-py3-none-any.whl

Tags

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