Version 4.1.0 released on 2026-01-28! pip install blosc2 -U

Python-Blosc2: Compress Better, Compute Bigger

Full-Fledged NDArrays

NDArray objects enable efficient storage and manipulation of arbitrarily large N-dimensional datasets, following the Array API standard, with an additional C API.

Uncomplicated Format

Blosc2’s format is simple and accessible, with specifications under 4000 words that make it easy to read and integrate.

Getting Started

New to Python-Blosc2? Check out the getting started guides. They contain an introduction to Python-Blosc2 main concepts and different tutorials.

API Reference

The reference guide provides a comprehensive description of the Python-Blosc2 API, detailing how functions work and their available parameters.

Development

Found a typo in the documentation or want to improve existing functionality? The contributing guidelines will walk you through the process of enhancing Python-Blosc2.

Release Notes

Want to see what’s new in the latest release? Explore the comprehensive release notes to discover new features, improvements, bug fixes, and important changes across all versions.