Mailman 3 September 2020 - Python-announce-list

PyCon ZA 2020 - Call for Submissions
by Neil Muller Nov. 11, 2020

Nov. 11, 2020

PyCon ZA 2020 will take place on the 8th & 9th of October, 2020. This year, due to the ongoing uncertainty of when conference facilities will be allowed to open, we will be running PyCon ZA as an online event. We are looking for the following presentations: - Keynotes (45 minute long talks on a subject of general interest) - Talks (30 minute long talks on more specific topics) If you would like to give a presentation, please register at https://za.pycon.org/ and submit your proposal, following the instructions at https://za.pycon.org/talks/submit-talk/ . We have a number of tracks available, including: Data Science, Teaching and Learning with Python, Web, Scientific Computing, Testing and Other (which includes all talks that don't fall under the mentioned tracks). We hope to notify accepted presenters by no later than the 31st of August 2020. Speakers will be expected to be available after the presentation for a short Q&A session. Shared sessions are also possible. The presentations will be in English. PyCon ZA offers a mentorship program for inexperienced speakers. If you would like assistance preparing your submission, email team(a)za.pycon.org with a rough draft of your talk proposal and we'll find a suitable experienced speaker to act as a mentor. If you want to present something else at PyCon ZA, please contact the organising committee at team(a)za.pycon.org . We’re researching which software platforms will be most suitable for running PyCon ZA. As soon as we have finalised this decision, we’ll make it public and update potential presenters. If you have experience with presenting on particular platforms, we'd love to hear from you at team(a)za.pycon.org . -- Neil Muller On behalf of the PyCon ZA organising committee

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pip 20.2 release, plus changes coming in 20.3
by Sumana Harihareswara Oct. 1, 2020

Oct. 1, 2020

On behalf of the Python Packaging Authority, I am pleased to announce that we have just released pip 20.2, a new version of pip. You can install it by running python -m pip install --upgrade pip. The highlights for this release are: - The beta of the next-generation dependency resolver is available - Faster installations from wheel files - Improved handling of wheels containing non-ASCII file contents - Faster `pip list` using parallelized network operations - Installed packages now contain metadata about whether they were directly requested by the user (PEP 376’s REQUESTED file) The new dependency resolver is *off by default* because it is *not yet ready for everyday use*. The new dependency resolver is significantly stricter and more consistent when it receives incompatible instructions, and reduces support for certain kinds of constraints files, so some workarounds and workflows may break. Please test it with the `--use-feature=2020-resolver` flag. Please see our guide on how to test and migrate, and how to report issues <https://pip.pypa.io/en/latest/user_guide/#changes-to-the-pip-dependency-res…>. We are preparing to change the default dependency resolution behavior and make the new resolver the default in pip 20.3 (in October 2020). This release also partially optimizes pip’s network usage during installation (as part of a Google Summer of Code project by McSinyx <https://summerofcode.withgoogle.com/projects/#5428041779511296>). Please test it with `pip install --use-feature=2020-resolver --use-feature=fast-deps` and report bugs to the issue tracker <https://github.com/pypa/pip/issues/new?template=bug-report.md>. This functionality is *still experimental* and *not ready for everyday use*. You can find more details (including deprecations and removals) in the changelog <https://pip.pypa.io/en/stable/news/>. As with all pip releases, a significant amount of the work was contributed by pip’s user community. Huge thanks to all who have contributed, whether through code, documentation, issue reports and/or discussion. Your help keeps pip improving, and is hugely appreciated. Specific thanks go to Mozilla (through its Mozilla Open Source Support <https://www.mozilla.org/en-US/moss/> Awards) and to the Chan Zuckerberg Initiative <https://chanzuckerberg.com/eoss/> DAF, an advised fund of Silicon Valley Community Foundation, for their funding that enabled substantial work on the new resolver. -- Sumana Harihareswara pip project manager via contract with PSF Changeset Consulting https://changeset.nyc

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ANN: SfePy 2020.3
by Robert Cimrman Sept. 29, 2020

Sept. 29, 2020

I am pleased to announce the release of SfePy 2020.3. Description ----------- SfePy (simple finite elements in Python) is a software for solving systems of coupled partial differential equations by finite element methods. It is distributed under the new BSD license. Home page: https://sfepy.org Mailing list: https://mail.python.org/mm3/mailman3/lists/sfepy.python.org/ Git (source) repository, issue tracker: https://github.com/sfepy/sfepy Highlights of this release -------------------------- - new script for visualizations based on pyvista - generalized Yeoh hyperelastic term + example For full release notes see [1]. Cheers, Robert Cimrman [1] http://docs.sfepy.org/doc/release_notes.html#id1 --- Contributors to this release in alphabetical order: Robert Cimrman Jan Heczko Vladimir Lukes

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pytest-6.1.0
by Ran Benita Sept. 26, 2020

Sept. 26, 2020

The pytest team is proud to announce the 6.1.0 release! This release contains new features, improvements, bug fixes, and breaking changes, so users are encouraged to take a look at the CHANGELOG carefully: https://docs.pytest.org/en/stable/changelog.html For complete documentation, please visit: https://docs.pytest.org/en/stable/ As usual, you can upgrade from PyPI via: pip install -U pytest Thanks to all of the contributors to this release: * Anthony Sottile * Bruno Oliveira * C. Titus Brown * Drew Devereux * Faris A Chugthai * Florian Bruhin * Hugo van Kemenade * Hynek Schlawack * Joseph Lucas * Kamran Ahmad * Mattreex * Maximilian Cosmo Sitter * Ran Benita * Rüdiger Busche * Sam Estep * Sorin Sbarnea * Thomas Grainger * Vipul Kumar * Yutaro Ikeda * hp310780 Happy testing, The pytest Development Team

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[RELEASE] Python 3.8.6 is now available
by Łukasz Langa Sept. 24, 2020

Sept. 24, 2020

Python 3.8.6 is the sixth maintenance release of Python 3.8. Go get it here: https://www.python.org/downloads/release/python-386/ <https://www.python.org/downloads/release/python-386/> Maintenance releases for the 3.8 series will continue at regular bi-monthly intervals, with 3.8.7 planned for mid-November 2020. What’s new? The Python 3.8 series is the newest feature release of the Python language, and it contains many new features and optimizations. See the “What’s New in Python 3.8 <https://docs.python.org/3.8/whatsnew/3.8.html>” document for more information about features included in the 3.8 series. Python 3.8 is becoming more stable. Our bugfix releases are becoming smaller as we progress. This one contains 122 changes, less than two thirds of the previous average for a new release. Detailed information about all changes made in version 3.8.6 specifically can be found in its change log <https://docs.python.org/release/3.8.6/whatsnew/changelog.html#python-3-8-6>. Note that compared to 3.8.5 this release also contains all changes present in 3.8.6rc1. We hope you enjoy Python 3.8! 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. Your friendly release team, Ned Deily @nad <https://discuss.python.org/u/nad> Steve Dower @steve.dower <https://discuss.python.org/u/steve.dower> Łukasz Langa @ambv <https://discuss.python.org/u/ambv>

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Pythran 0.9.8 - memes tra
by Serge Guelton Sept. 23, 2020

Sept. 23, 2020

Hi Folks, New Pythran release, tagged on github, available on PyPI and conda, and described here: http://serge-sans-paille.github.io/pythran-stories/pythran-097-memes-tra.ht… Enjoy!

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PyCA cryptography 3.1.1 released
by Paul Kehrer Sept. 22, 2020

Sept. 22, 2020

PyCA cryptography 3.1.1 has been released to PyPI. cryptography includes both high level recipes and low level interfaces to common cryptographic algorithms such as symmetric ciphers, asymmetric algorithms, message digests, X509, key derivation functions, and much more. We support Python 2.7, Python 3.5+, and PyPy. Changelog (https://cryptography.io/en/latest/changelog/#v3-1-1): * Updated Windows, macOS, and manylinux wheels to be compiled with OpenSSL 1.1.1h. -Paul Kehrer (reaperhulk)

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EuroPython "Ask me Anything"
by M.-A. Lemburg Sept. 22, 2020

Sept. 22, 2020

Dear Community, we want to try a new experiment and run an “Ask me Anything” (AMA) this Thursday to answer questions you may have, share our knowledge or help you in planning your online event. Some of the topics we can cover: - our tools research and findings - our concepts for running an online conference or event - our experience with running EuroPython online - what we could do to support you - how our Zoom license sharing works - how you can apply for a grant - how the EuroPython Society works - how we run the EuroPython organization with fully remote work groups and, of course, anything else :-) If you’re interested in joining the call, please send your name and email to helpdesk(a)europython.eu and we’ll send you the invite for the call on * Thursday, Sept 24, starting at 19:30 CEST * When requesting the invite, please also consider adding any more detailed questions, so we can better prepare and make the meeting more effective. If there is demand, we’ll probably have these calls on a monthly basis to keep the momentum going. BTW: We are making our conference resources available on our website, in case you have missed our blog post earlier this year. Many thanks. Help spread the word -------------------- Please help us spread this message by sharing it on your social networks as widely as possible. Thank you ! Link to the blog post: https://blog.europython.eu/post/629951901661790208/europython-ask-me-anythi… Tweet: https://twitter.com/europython/status/1308346430130663426 Thanks, -- EuroPython 2020 Team https://ep2020.europython.eu/ https://www.europython-society.org/

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Pymssql 2.1.5 released
by Mike Sept. 17, 2020

Sept. 17, 2020

Hello, I’m happy to announce the release of pymssql 2.1.5, available to download via pip and GitHub. Pymssql is a simple database interface for Python that builds on top of FreeTDS to provide a Python DB-API (PEP-249) interface to Microsoft SQL Server. This is primary a Python3 compatibility release, with minor fixes in bindings to FreeTDS and test suite. The release highlights are: - Support Python-3.8 (and upcoming 3.9). Update tests for Python-3.8 compatibility. - Use correct language level for building Cython extension. - Fix FreeTDS version checks. Add check for version 7.4. - Use Github Actions for building wheels for Linux, macOS and Windows. - Drop bundled FreeTDS-0.95 binaries. The official documentation is available at: https://pymssql.org. The sources and bug tracker: https://github.com/pymssql/pymssql. Enjoy, Mikhail

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[RELEASE] Python 3.9.0rc2 is now available for testing
by Łukasz Langa Sept. 17, 2020

Sept. 17, 2020

Python 3.9.0 is almost ready. This release, 3.9.0rc2, is the last planned preview before the final release of Python 3.9.0 on 2020-10-05. Get it here: https://www.python.org/downloads/release/python-390rc2/ <https://www.python.org/downloads/release/python-390rc2/> In the mean time, we strongly encourage maintainers of third-party Python projects to prepare their projects for 3.9 compatibility 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. Information for core developers The 3.9 branch is now accepting changes for 3.9.1. To maximize stability, the final release will be cut from the v3.9.0rc2 tag. If you need the release manager to cherry-pick any critical fixes, mark issues as release blockers and/or add him as a reviewer on a critical backport PR on GitHub. To see which changes are currently cherry-picked for inclusion in 3.9.0, look at the short-lived branch-v3.9.0 <https://github.com/python/cpython/tree/branch-v3.9.0> on GitHub. Installer news This is the first version of Python to default to the 64-bit installer on Windows. The installer now also actively disallows installation on Windows 7. Python 3.9 is incompatible with this unsupported version of Windows. Major new features of the 3.9 series, compared to 3.8 Some of the new major new features and changes in Python 3.9 are: PEP 584 <https://www.python.org/dev/peps/pep-0584/>, Union Operators in dict PEP 585 <https://www.python.org/dev/peps/pep-0585/>, Type Hinting Generics In Standard Collections PEP 593 <https://www.python.org/dev/peps/pep-0593/>, Flexible function and variable annotations PEP 602 <https://www.python.org/dev/peps/pep-0602/>, Python adopts a stable annual release cadence PEP 615 <https://www.python.org/dev/peps/pep-0615/>, Support for the IANA Time Zone Database in the Standard Library PEP 616 <https://www.python.org/dev/peps/pep-0616/>, String methods to remove prefixes and suffixes PEP 617 <https://www.python.org/dev/peps/pep-0617/>, New PEG parser for CPython BPO 38379 <https://bugs.python.org/issue38379>, garbage collection does not block on resurrected objects; BPO 38692 <https://bugs.python.org/issue38692>, os.pidfd_open added that allows process management without races and signals; BPO 39926 <https://bugs.python.org/issue39926>, Unicode support updated to version 13.0.0; BPO 1635741 <https://bugs.python.org/issue1635741>, when Python is initialized multiple times in the same process, it does not leak memory anymore; A number of Python builtins (range, tuple, set, frozenset, list, dict) are now sped up using PEP 590 <https://www.python.org/dev/peps/pep-0590> vectorcall; A number of Python modules (_abc, audioop, _bz2, _codecs, _contextvars, _crypt, _functools, _json, _locale, operator, resource, time, _weakref) now use multiphase initialization as defined by PEP 489 <https://www.python.org/dev/peps/pep-0489/>; A number of standard library modules (audioop, ast, grp, _hashlib, pwd, _posixsubprocess, random, select, struct, termios, zlib) are now using the stable ABI defined by PEP 384 <https://www.python.org/dev/peps/pep-0384/>. More resources Online Documentation <https://docs.python.org/3.9/> PEP 596 <https://www.python.org/dev/peps/pep-0596/>, 3.9 Release Schedule Report bugs at https://bugs.python.org <https://bugs.python.org/>. Help fund Python and its community <https://www.python.org/psf/donations/>. Your friendly release team, Ned Deily @nad <https://discuss.python.org/u/nad> Steve Dower @steve.dower <https://discuss.python.org/u/steve.dower> Łukasz Langa @ambv <https://discuss.python.org/u/ambv>

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