============================= Announcing python-blosc 1.9.2 =============================
What is new? ============
This is a maintenance release to better support recent versions of Python (3.8 and 3.9). Also, and due to the evolution of modern CPUs, the number of default threads has been raised to 8 (from 4). Finally, zero-copy decompression is now supported by allowing bytes-like input. Thanks to Lehman Garrison.
For more info, you can have a look at the release notes in:
More docs and examples are available in the documentation site:
What is it? ===========
Blosc (http://www.blosc.org) is a high performance compressor optimized for binary data. It has been designed to transmit data to the processor cache faster than the traditional, non-compressed, direct memory fetch approach via a memcpy() OS call. Blosc works well for compressing numerical arrays that contain data with relatively low entropy, like sparse data, time series, grids with regular-spaced values, etc.
python-blosc (http://python-blosc.blosc.org/) is the Python wrapper for the Blosc compression library, with added functions (`compress_ptr()` and `pack_array()`) for efficiently compressing NumPy arrays, minimizing the number of memory copies during the process. python-blosc can be used to compress in-memory data buffers for transmission to other machines, persistence or just as a compressed cache.
There is also a handy tool built on top of python-blosc called Bloscpack (https://github.com/Blosc/bloscpack). It features a command line interface that allows you to compress large binary data files on-disk. It also comes with a Python API that has built-in support for serializing and deserializing Numpy arrays both on-disk and in-memory at speeds that are competitive with regular Pickle/cPickle machinery.
Sources repository ==================
The sources and documentation are managed through github services at: