Path: csiph.com!fu-berlin.de!uni-berlin.de!not-for-mail From: Valentin Haenel Newsgroups: comp.lang.python.announce Subject: [ANN] python-blosc 1.7.0 Date: Thu, 27 Dec 2018 16:01:06 +0100 Lines: 65 Approved: python-announce-list@python.org Message-ID: References: <20181227150106.GA21592@kudu.in-berlin.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Trace: news.uni-berlin.de XGO4R7lxr5zsu3T/RRcS8gVV8HRRPsHaRd0BKdM7tsVQ== Return-Path: X-Original-To: python-announce-list@python.org Delivered-To: python-announce-list@mail.python.org X-Spam-Status: OK 0.025 X-Spam-Evidence: '*H*': 0.95; '*S*': 0.00; 'repository': 0.04; 'call.': 0.05; 'arrays': 0.07; 'binary': 0.07; 'handy': 0.07; 'subject:ANN': 0.07; 'url:org)': 0.07; 'cache': 0.09; 'wrapper': 0.09; 'api': 0.12; 'subject:python': 0.15; '===========': 0.16; 'buffers': 0.16; 'compression': 0.16; 'debian.': 0.16; 'fetch': 0.16; 'machinery.': 0.16; 'numpy': 0.16; 'to:addr:scipy.org': 0.16; 'url:rst': 0.16; 'stack': 0.16; 'tests': 0.16; 'url:)': 0.18; 'python': 0.19; 'daniel': 0.24; 'examples': 0.24; 'debian': 0.25; 'github': 0.25; 'numerical': 0.25; 'header:User-Agent:1': 0.26; 'versions': 0.26; 'it?': 0.29; 'finally,': 0.29; '----': 0.30; 'skip:` 10': 0.30; 'to:addr:python-announce-list': 0.30; 'upgraded': 0.30; 'subject:] ': 0.31; 'url-ip:192.30/16': 0.32; 'platforms': 0.34; 'url:github': 0.34; 'subject:-': 0.34; 'windows': 0.35; 'unit': 0.35; 'interface': 0.35; 'subject:[': 0.35; 'package': 0.35; 'url-ip:188/8': 0.36; 'received:192': 0.37; 'performance': 0.37; 'tool': 0.37; 'there': 0.37; 'functions': 0.37; 'larger': 0.37; 'data,': 0.37; 'url-ip:192.30.253.112/32': 0.37; 'url-ip:192.30.253.113/32': 0.37; 'url-ip:192.30.253/24': 0.37; 'relatively': 0.38; 'skip:= 10': 0.38; 'data': 0.38; 'version': 0.38; 'processor': 0.38; 'thank': 0.39; 'at:': 0.39; 'likely': 0.39; 'etc.': 0.39; 'during': 0.61; 'available': 0.62; 'maintenance': 0.63; 'process.': 0.63; 'high': 0.63; 'skip:n 10': 0.65; 'services': 0.65; 'announcing': 0.67; 'compressed': 0.67; 'info,': 0.67; 'to:addr:numpy-discussion': 0.67; 'designed': 0.67; 'site:': 0.69; 'url-ip:lookup error': 0.72; 'docs': 0.73; 'direct': 0.74; 'optimized': 0.75; 'competitive': 0.75; 'built- in': 0.76; 'low': 0.79; 'continued': 0.83; '============': 0.84; 'grids': 0.84; 'included.': 0.84; 'url-ip:188.226/16': 0.84 X-Authentication-Warning: kudu.in-berlin.de: esc set sender to valentin@haenel.co using -f Mail-Followup-To: Blosc , NumPy Discussion , python-announce-list@python.org Content-Disposition: inline User-Agent: Mutt/1.5.23 (2014-03-12) X-Mailman-Approved-At: Wed, 02 Jan 2019 08:00:50 -0500 X-BeenThere: python-announce-list@python.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Announcement-only list for the Python programming language List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Mailman-Original-Message-ID: <20181227150106.GA21592@kudu.in-berlin.de> Xref: csiph.com comp.lang.python.announce:3034 ============================= Announcing python-blosc 1.7.0 ============================= What is new? ============ This is a maintenance release which takes care of several housekeepting tasks. Support for older versions of Python (2.6 and 3.3) has been removed from the codebase. A new version of C-Blosc (1.5.1) that now passes all unit and integration tests across all supported platforms has been included. Finally, a the vendored cpuinfo.py has been upgraded and the automatic tests on Windows via Appveyor have been upgraded to include a larger variety of Windows/Python combinations. A big thank you goes out to Daniel Stender from the Debian project for his continued efforts to package the Blosc stack -- including python-blosc -- for Debian. This also means it is likely that a recent version of python-blosc will be included in Buster. For more info, you can have a look at the release notes in: https://github.com/Blosc/python-blosc/blob/master/RELEASE_NOTES.rst More docs and examples are available in the documentation site: http://python-blosc.blosc.org 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 contains 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 commmand line interface that allows you to compress large binary datafiles 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: http://github.com/Blosc/python-blosc ---- **Enjoy data!**