Mailman 3 September 2021 - Python-announce-list

ANN: distlib 0.3.3 released on PyPI
by Vinay Sajip Sept. 22, 2021

Sept. 22, 2021

I've recently released version 0.3.3 of distlib on PyPI [1]. For newcomers, distlib is a library of packaging functionality which is intended to be usable as the basis for third-party packaging tools. The main changes in this release are as follows: * Fixed #152: Removed splituser() function which wasn't used and is deprecated. * Fixed #149: Handle version comparisons correctly in environment markers. * Add ARM-64 launchers and support code to use them. Thanks to Niyas Sait and Adrian Vladu for their contributions. * Fixed #148: Handle a single trailing comma following a version. Thanks to Blazej Floch for the report and suggested fix. * Fixed #150: Fix incorrect handling of epochs. * Reverted handling of tags for Python >= 3.10 (use 310 rather than 3_10). This is because PEP 641 was rejected. * Added a GitHub Actions workflow to perform tests. A more detailed change log is available at [2]. Please try it out, and if you find any problems or have any suggestions for improvements, please give some feedback using the issue tracker! [3] Regards, Vinay Sajip [1] https://pypi.org/project/distlib/0.3.3/ [2] https://distlib.readthedocs.io/en/0.3.3/ [3] https://bitbucket.org/pypa/distlib/issues/new

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Pythran release - 0.10.0 - palig
by Serge Guelton Sept. 14, 2021

Sept. 14, 2021

Hi Folks, Pythran, a compiler for scientific kernels written in Python, got a new release. It contains a few changes detailed in the changelog[0] but I'd like to highlight the work[1] of Xingyu Liu during her GSoC on improving pythran <-> scipy integration. It's also a release that recieved a lot of external contributions, and that's always a pleasure. Thanks to you all! $ git log 0.9.9..0.10.0 | grep Author | sort -u | wc -l 21 As usual, Pythran is available since today on PyPI and github, and this will propagate to conda, Fedora etc thanks to our beloved packagers! [0] https://github.com/serge-sans-paille/pythran/blob/0.10.0/Changelog [1] https://serge-sans-paille.github.io/pythran-stories/gsoc21-improve-performa…

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ANN: Version 0.5.1 of the Python config module has been released.
by Vinay Sajip Sept. 11, 2021

Sept. 11, 2021

What Does It Do? ================ The CFG configuration format is a text format for configuration files which is similar to, and a superset of, the JSON format.It has the following aims: * Allow a hierarchical configuration scheme with support for key-value mappings and lists. * Support cross-references between one part of the configuration and another. * Provide a string interpolation facility to easily build up configuration values from other configuration values. * Provide the ability to compose configurations (using include and merge facilities). * Provide the ability to access real application objects safely. * Be completely declarative. It overcomes a number of drawbacks of JSON when used as a configuration format: * JSON is more verbose than necessary. * JSON doesn’t allow comments. * JSON doesn’t provide first-class support for dates and multi-line strings. * JSON doesn’t allow trailing commas in lists and mappings. * JSON doesn’t provide easy cross-referencing, interpolation, or composition. The Python config module provides an interface to work with configuration files written in the CFG format. Comprehensive documentation is available at https://docs.red-dove.com/cfg/index.html and you can report issues / enhancement requests at https://github.com/vsajip/py-cfg-lib/issues As always, your feedback is most welcome (especially bug reports, patches and suggestions for improvement). Enjoy! Cheers, Vinay Sajip

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[RELEASE] Python 3.10.0rc2 is available
by Pablo Galindo Salgado Sept. 7, 2021

Sept. 7, 2021

Python 3.10 is one month away, can you believe it? This snake is still trying to bite as it has been an interesting day of fighting fires, release blockers, and a bunch of late bugs but your friendly release team always delivers :) You can get this new release while is still fresh here: https://www.python.org/downloads/release/python-3100rc2/ This is the second release candidate of Python 3.10 This release, **3.10.0rc2** , is the last preview before the final release of Python 3.10.0 on 2021-10-04. Entering the release candidate phase, only reviewed code changes which are clear bug fixes are allowed between release candidates and the final release. There will be no ABI changes from this point forward in the 3.10 series and the goal is that there will be as few code changes as possible. *The next release will be the final release of Python 3.10.0, which is currently scheduled for Monday, 2021-10-04.* Call to action ⚠️⚠️⚠️⚠️⚠️⚠️⚠️ *The 3.10 branch is now accepting changes for 3.10.**1*. To maximize stability, the final release will be cut from the v3.10.0rc2 tag. If you need the release manager (me) to cherry-pick any critical fixes, mark issues as release blockers, and/or add me as a reviewer on a critical backport PR on GitHub. To see which changes are currently cherry-picked for inclusion in 3.10.0, look at the short-lived branch-v3.10.0 https://github.com/python/cpython/tree/branch-v3.10.0 on GitHub. ⚠️⚠️⚠️⚠️⚠️⚠️⚠️ *Core developers: all eyes on the docs now* - Are all your changes properly documented? - Did you notice other changes you know of to have insufficient documentation? *Community members* We strongly encourage maintainers of third-party Python projects to prepare their projects for 3.10 compatibilities during this phase. As always, report any issues to [the Python bug tracker ](https://bugs.python.org/). Please keep in mind that this is a preview release and its use is **not** recommended for production environments. And now for something completely different Maxwell's demon is a thought experiment that would hypothetically violate the second law of thermodynamics. It was proposed by the physicist James Clerk Maxwell in 1867. In the thought experiment, a demon controls a small massless door between two chambers of gas. As individual gas molecules (or atoms) approach the door, the demon quickly opens and closes the door to allow only fast-moving molecules to pass through in one direction, and only slow-moving molecules to pass through in the other. Because the kinetic temperature of a gas depends on the velocities of its constituent molecules, the demon's actions cause one chamber to warm up and the other to cool down. This would decrease the total entropy of the two gases, without applying any work, thereby violating the second law of thermodynamics. We hope you enjoy those new releases! Thanks to all of the many volunteers who help make Python Development and these releases possible! Please consider supporting our efforts by volunteering yourself or through organization contributions to the Python Software Foundation. Regards from a plane going to Malaga, Your friendly release team, Pablo Galindo @pablogsal Ned Deily @nad Steve Dower @steve.dower

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[RELEASE] Python 3.7.12 and 3.6.15 security updates now available
by Ned Deily Sept. 4, 2021

Sept. 4, 2021

Python 3.7.12 and 3.6.15, the lastest security fix rollups for Python 3.7 and Python 3.6, are now available. You can find the release files, links to the changelogs, and more information here: https://www.python.org/downloads/release/python-3712/ https://www.python.org/downloads/release/python-3615/ These releases are source code only; Windows and macOS binary installers are not provided for security fix releases. Note that Python 3.9 is now the latest feature release series of Python 3. You should consider upgrading to 3.9 as soon as practical. Get the latest release of 3.9.x here: https://www.python.org/downloads/ Thanks to all of the many volunteers who help make Python Development and these releases possible! Please consider supporting our efforts by volunteering yourself or through organization contributions to the Python Software Foundation. https://www.python.org/psf-landing/ -- Ned Deily nad(a)python.org -- []

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ANN: pvlib-0.9.0 released
by Dr. Mark Alexander Mikofski PhD Sept. 3, 2021

Sept. 3, 2021

Dear Pythonistas and solar power enthusiasts, On behalf of the maintainers, we're happy to announce a new release of pvlib python: software for simulating performance of photovoltaic solar energy systems. *See what's new for v0.9.0:* * https://pvlib-python.readthedocs.io/en/stable/whatsnew.html *Releases are available from PyPI and the conda-forge channel:* * https://pypi.org/project/pvlib/ * https://anaconda.org/conda-forge/pvlib-python *Read the Documentation:* * https://pvlib-python.readthedocs.io/en/stable/index.html *Report issues & contribute:* * https://github.com/pvlib/pvlib-python *Highlights:* * There are some breaking changes <https://pvlib-python.readthedocs.io/en/stable/whatsnew.html#breaking-changes>, so please read the Release Notes carefully before updating. * pvlib now has a new Array class <https://pvlib-python.readthedocs.io/en/stable/generated/pvlib.pvsystem.Arra…> that represents groups of identical modules that are part of a PVSystem but have the same orientation and mounting type. * The PVSystem class <https://pvlib-python.readthedocs.io/en/stable/generated/pvlib.pvsystem.PVSy…> can now model a combination of arrays each with different orientations, modules, and mounting types. * pvlib completed a very successful GSoC <https://summerofcode.withgoogle.com/>, which added several new iotools like get_bsrn() <https://pvlib-python.readthedocs.io/en/stable/generated/pvlib.iotools.get_b…> , get_pvgis_hourly() <https://pvlib-python.readthedocs.io/en/stable/generated/pvlib.iotools.read_…> , get_cams() <https://pvlib-python.readthedocs.io/en/stable/generated/pvlib.iotools.get_c…>, and more. Special thanks to Adam R. Jensen <https://predictablysunny.com/>, Kevin Anderson, and many reviewers who helped! * Many bug fixes <https://pvlib-python.readthedocs.io/en/stable/whatsnew.html#bug-fixes> including a fix to Perez <https://github.com/pvlib/pvlib-python/issues/1238> contributed by Clean Power Research. Read their blog <https://www.solaranywhere.com/2021/pvlib-models-via-solaranywhere-joins-pvl…> to learn more about how they're contributing to pvlib. Thanks! *The maintainers thank you for using pvlib python!* -- Mark Mikofski, PhD (2005) *Fiat Lux*

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Wing Python IDE 8.0.3 has been released
by Wingware Sept. 1, 2021

Sept. 1, 2021

Wing 8.0.3 allows specifying the Django settings module for unit tests with --settings=<name> in Run Args on the Testing page of Project Properties, fixes using an Activated Env that contains spaces in its path, prevents failure to reformat code on remote hosts and containers, fixes searching in files with non-ascii characters, and makes several other improvements. Details: https://wingware.com/news/2021-08-31 Downloads: https://wingware.com/downloads == About Wing == Wing is a light-weight but full-featured Python IDE designed specifically for Python, with powerful editing, code inspection, testing, and debugging capabilities. Wing's deep code analysis provides auto-completion, auto-editing, and refactoring that speed up development. Its top notch debugger works with any Python code, locally or on a remote host, container, or cluster. Wing also supports test-driven development, version control, UI color and layout customization, and includes extensive documentation and support. Wing is available in three product levels: Wing Pro is the full-featured Python IDE for professional developers, Wing Personal is a free Python IDE for students and hobbyists (omits some features), and Wing 101 is a very simplified free Python IDE for beginners (omits many features). Learn more at https://wingware.com/

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