A fast & compressed ndarray library with a flexible compute engine
- Author:
The Blosc development team
- Contact:
- Github:
- Actions:
- PyPi:
- NumFOCUS:
- Code of Conduct:
What it is
Python-Blosc2 is a high-performance compressed ndarray library with a flexible compute engine. It uses the C-Blosc2 library as the compression backend. C-Blosc2 is the next generation of Blosc, an award-winning library that has been around for more than a decade, and that is been used by many projects, including PyTables or Zarr.
Python-Blosc2 is Python wrapper that exposes the C-Blosc2 API, plus an integrated compute engine. This allows to perform complex calculations on compressed data in a way that operands do not need to be in-memory, but can be stored on disk or on the network. This makes possible to work with data no matter how large it is, and that can be stored in a distributed fashion.
Most importantly, Python-Blosc2 uses the C-Blosc2 simple and open format for storing compressed data, making it easy to integrate with other systems and tools.
You can find more introductory info about Python-Blosc2 at:
https://www.blosc.org/python-blosc2/getting_started/overview.html
Installing
Blosc2 now provides Python wheels for the major OS (Win, Mac and Linux) and platforms. You can install the binary packages from PyPi using pip:
pip install blosc2 --upgradeFor conda users, you can install the package from the conda-forge channel:
conda install -c conda-forge python-blosc2Documentation
The documentation is available here:
https://blosc.org/python-blosc2/python-blosc2.html
Additionally, you can find some examples at:
https://github.com/Blosc/python-blosc2/tree/main/examples
Finally, we taught a tutorial at the PyData Global 2024 that you can find at: https://github.com/Blosc/Python-Blosc2-3.0-tutorial. There you will find different Jupyter notebook that explains the main features of Python-Blosc2.
License
This software is licensed under a 3-Clause BSD license. A copy of the python-blosc2 license can be found in LICENSE.txt.
Discussion forum
Discussion about this package is welcome at:
Thanks
Blosc2 is supported by the NumFOCUS foundation, the LEAPS-INNOV project and ironArray SLU, among many other donors. This allowed the following people have contributed in an important way to the core development of the Blosc2 library:
Francesc Alted
Marta Iborra
Aleix Alcacer
Oscar Guiñón
Juan David Ibáñez
Ivan Vilata i Balaguer
Oumaima Ech.Chdig
In addition, other people have participated to the project in different aspects:
Jan Sellner, contributed the mmap support for NDArray/SChunk objects.
Dimitri Papadopoulos, contributed a large bunch of improvements to the in many aspects of the project. His attention to detail is remarkable.
And many others that have contributed with bug reports, suggestions and improvements.
Citing Blosc
You can cite our work on the various libraries under the Blosc umbrella as follows:
@ONLINE{blosc,
author = {{Blosc Development Team}},
title = "{A fast, compressed and persistent data store library}",
year = {2009-2025},
note = {https://blosc.org}
}Donate
If you find Blosc useful and want to support its development, please consider making a donation via the NumFOCUS organization, which is a non-profit that supports many open-source projects. Thank you!
Compress Better, Compute Bigger
Release files for blosc2 3.1.1
For a detailed explanation of source distributions (sdists) and built distributions (wheels), please see the package formats documentation.
Source distribution (sdist)
| File | Size | Uploaded | |
|---|---|---|---|
| blosc2-3.1.1.tar.gz | 9.9 MB | Details |
Built distributions (wheels)
Total release size: 64.5 MB
Release files / blosc2-3.1.1.tar.gz
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| Tags | Source |
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Release files / blosc2-3.1.1-cp313-cp313-win_amd64.whl
| Download URL | blosc2-3.1.1-cp313-cp313-win_amd64.whl |
|---|---|
| Size | 2.2 MB |
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Release files / blosc2-3.1.1-cp313-cp313-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
| Download URL | blosc2-3.1.1-cp313-cp313-manylinux_2_17_x86_64.manylinux2014_x86_64.whl |
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| Size | 4.4 MB |
| Tags | CPython 3.13 Linux glibc 2.17+ x86-64 |
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Release files / blosc2-3.1.1-cp313-cp313-manylinux_2_17_aarch64.manylinux2014_aarch64.whl
| Download URL | blosc2-3.1.1-cp313-cp313-manylinux_2_17_aarch64.manylinux2014_aarch64.whl |
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| Size | 4.2 MB |
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Release files / blosc2-3.1.1-cp313-cp313-macosx_11_0_arm64.whl
| Download URL | blosc2-3.1.1-cp313-cp313-macosx_11_0_arm64.whl |
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Release files / blosc2-3.1.1-cp313-cp313-macosx_10_13_x86_64.whl
| Download URL | blosc2-3.1.1-cp313-cp313-macosx_10_13_x86_64.whl |
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Release files / blosc2-3.1.1-cp312-cp312-win_amd64.whl
| Download URL | blosc2-3.1.1-cp312-cp312-win_amd64.whl |
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| Size | 2.2 MB |
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Release files / blosc2-3.1.1-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
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Release files / blosc2-3.1.1-cp312-cp312-macosx_11_0_arm64.whl
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Release files / blosc2-3.1.1-cp312-cp312-macosx_10_13_x86_64.whl
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Release files / blosc2-3.1.1-cp311-cp311-win_amd64.whl
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Release files / blosc2-3.1.1-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl
| Download URL | blosc2-3.1.1-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl |
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| Tags | CPython 3.11 Linux glibc 2.17+ x86-64 |
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Release files / blosc2-3.1.1-cp311-cp311-manylinux_2_17_aarch64.manylinux2014_aarch64.whl
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| Tags | CPython 3.11 Linux glibc 2.17+ ARM64 |
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Release files / blosc2-3.1.1-cp311-cp311-macosx_11_0_arm64.whl
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Release files / blosc2-3.1.1-cp311-cp311-macosx_10_9_x86_64.whl
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