Mailman 3 June 2024 - Python-announce-list

[RELEASE] Python 3.13.0 beta 3 released.
by Thomas Wouters June 27, 2024

June 27, 2024

The *next to last* Python 3.13 beta version, beta 3, is now released: https://www.python.org/downloads/release/python-3130b3/ *This is a beta preview of Python 3.13* Python 3.13 is still in development. This release, 3.13.0b3, is the third of four beta release previews of 3.13. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their projects to support the new feature release. We *strongly encourage* maintainers of third-party Python projects to *test with 3.13* during the beta phase and report issues found to the Python bug tracker <https://github.com/python/cpython/issues> as soon as possible. While the release is planned to be feature complete entering the beta phase, it is possible that features may be modified or, in rare cases, deleted up until the start of the release candidate phase (Tuesday 2024-07-30). Our goal is to have no ABI changes after beta 4 and as few code changes as possible after 3.13.0rc1, the first release candidate. To achieve that, it will be *extremely important* to get as much exposure for 3.13 as possible during the beta phase. Please keep in mind that this is a preview release and its use is *not* recommended for production environments. <https://discuss.python.org/t/python-3-13-0-beta-3-now-available/56847#major…>Major new features of the 3.13 series, compared to 3.12 Some of the new major new features and changes in Python 3.13 are: <https://discuss.python.org/t/python-3-13-0-beta-3-now-available/56847#new-f…>New features - A new and improved interactive interpreter <https://docs.python.org/3.13/whatsnew/3.13.html#a-better-interactive-interp…>, based on PyPy <https://pypy.org>’s, featuring multi-line editing and color support, as well as colorized exception tracebacks <https://docs.python.org/3.13/whatsnew/3.13.html#improved-error-messages> . - An *experimental* free-threaded build mode <https://docs.python.org/3.13/whatsnew/3.13.html#free-threaded-cpython>, which disables the Global Interpreter Lock, allowing threads to run more concurrently. The build mode is available as an experimental feature in the Windows and macOS installers as well. - A preliminary, *experimental* JIT <https://docs.python.org/3.13/whatsnew/3.13.html#experimental-jit-compiler>, providing the ground work for significant performance improvements. - The (cyclic) garbage collector is now incremental <https://docs.python.org/3.13/whatsnew/3.13.html#incremental-garbage-collect…>, which should mean shorter pauses for collection in programs with a lot of objects. - A modified version of mimalloc <https://github.com/microsoft/mimalloc> is now included, optional but enabled by default if supported by the platform, and required for the free-threaded build mode. - Docstrings now have their leading indentation stripped <https://docs.python.org/3.13/whatsnew/3.13.html#other-language-changes>, reducing memory use and the size of .pyc files. (Most tools handling docstrings already strip leading indentation.) - The dbm module <https://docs.python.org/3.13/library/dbm.html> has a new dbm.sqlite3 backend <https://docs.python.org/3.13/whatsnew/3.13.html#dbm> that is used by default when creating new files. - The minimum supported macOS version was changed from 10.9 to *10.13 (High Sierra)*. Older macOS versions will not be supported going forward. <https://discuss.python.org/t/python-3-13-0-beta-3-now-available/56847#typin…> Typing - Support for type defaults in type parameters <https://peps.python.org/pep-0696/>. - A new type narrowing annotation <https://peps.python.org/pep-0742/>, typing.TypeIs. - A new annotation for read-only items in TypeDicts <https://peps.python.org/pep-0705/>. <https://discuss.python.org/t/python-3-13-0-beta-3-now-available/56847#remov…>Removals and new deprecations - PEP 594 (Removing dead batteries from the standard library) <https://peps.python.org/pep-0594/> scheduled removals of many deprecated modules: aifc, audioop, chunk, cgi, cgitb, crypt, imghdr, mailcap, msilib, nis, nntplib, ossaudiodev, pipes, sndhdr, spwd, sunau, telnetlib, uu, xdrlib, lib2to3. - Many other removals <https://docs.python.org/3.13/whatsnew/3.13.html#removed> of deprecated classes, functions and methods in various standard library modules. - C API removals <https://docs.python.org/3.13/whatsnew/3.13.html#id10> and deprecations <https://docs.python.org/3.13/whatsnew/3.13.html#id9>. (Some removals present in alpha 1 were reverted in alpha 2, as the removals were deemed too disruptive at this time.) - New deprecations <https://docs.python.org/3.13/whatsnew/3.13.html#deprecated>, most of which are scheduled for removal from Python 3.15 or 3.16. (Hey, *fellow core developer,* if a feature you find important is missing from this list, let Thomas know <thomas(a)python.org>.) For more details on the changes to Python 3.13, see What’s new in Python 3.13 <https://docs.python.org/3.13/whatsnew/3.13.html>. The next pre-release of Python 3.13 will be 3.13.0b4, currently scheduled for 2024-07-16. <https://discuss.python.org/t/python-3-13-0-beta-3-now-available/56847#more-…>More resources - Online Documentation <https://docs.python.org/3.13/> - PEP 719 <https://peps.python.org/pep-0719/>, 3.13 Release Schedule - Report bugs at https://github.com/python/cpython/issues. - Help fund Python directly <https://www.python.org/psf/donations/python-dev/> (or via GitHub Sponsors <https://github.com/sponsors/python>), and support the Python community <https://www.python.org/psf/donations/>. <https://discuss.python.org/t/python-3-13-0-beta-3-now-available/56847#enjoy…>Enjoy the 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 *scorchingly* hot Amsterdam (hey, we get good weather too!), Your release team, Thomas Wouters Łukasz Langa Ned Deily Steve Dower -- Thomas Wouters <thomas(a)python.org>

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ANN: pyftpdlib 1.5.10 released
by Giampaolo Rodola' June 23, 2024

June 23, 2024

Hello all, I'm glad to announce the release of pyftpdlib 1.5.10: https://github.com/giampaolo/pyftpdlib About ===== Python FTP server library provides a high-level portable interface to easily write very efficient, scalable and asynchronous FTP servers with Python. What's new ========== **Enhancements** * #621: use black formatter. * #626: use argparse instead of deprecated optparse. * #628: use pytest instead of unittest. * #632: add ability to run tests in parallel with `make test-parallel`. **Bug fixes** * #627: PermissionError may occur on Windows when binding ports from a pre-configured PASV range. Links ===== - Home page: https://github.com/giampaolo/pyftpdlib - Download: https://pypi.python.org/pypi/pyftpdlib - Documentation: http://pyftpdlib.readthedocs.io - What's new: https://github.com/giampaolo/pyftpdlib/blob/master/HISTORY.rst -- Giampaolo - https://gmpy.dev/

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ANN: First beta of Python-Blosc2 3.0.0
by Francesc Alted June 21, 2024

June 21, 2024

Hi, The Blosc development team is pleased to announce the first beta release of Python-Blosc2 3.0.0. We have been working hard to provide a new evaluation engine (based on numexpr) for NDArray instances, and we would like to get feedback from the community before the final release. Now, you can evaluate expressions like `a + sin(b) + 1` where `a` and `b` are NDArray instances. This is a powerful feature that allows for efficient computations on compressed data, and supports advanced features like reductions, filters, user-defined functions and broadcasting (still in beta). See this `example <https://github.com/Blosc/python-blosc2/blob/main/examples/ndarray/eval_expr…>`_. Also, we have added support for memory mapping in `SChunk` and `NDArray` instances. This allows to map super-chunks stored in disk and access them as if they were in memory. When combined with the evaluation engine, this feature allows for very good performance when working with large datasets. See this `benchmark <https://github.com/Blosc/python-blosc2/blob/main/bench/ndarray/lazyarray-ex…>`_ (as it is a Jupyter notebook, you can easily run it in your own computer). Last, but not least, we are using NumPy 2.x as the default for testing procedures and builds. This means that our wheels are built against NumPy 2, so in case you want to use NumPy 1.x, you will need to use NumPy 1.23.0 or later. We are providing binary wheels that you can easily install from PyPI with:: pip install blosc2==3.0.0b1 For more info, you can have a look at the release notes in: https://github.com/Blosc/python-blosc2/releases More docs and examples are available in the documentation site: https://www.blosc.org/python-blosc2/python-blosc2.html What is it? ----------- `C-Blosc2 <https://github.com/Blosc/c-blosc2>`_ is the new major version of `C-Blosc <https://github.com/Blosc/c-blosc>`_, and is backward compatible with both the C-Blosc1 API and its in-memory format. Python-Blosc2 is a Python package that wraps C-Blosc2, the newest version of the Blosc compressor. Starting with version 3.0.0, Python-Blosc2 is including a powerful computing engine that can operate on compressed data that can be either in-memory, on-disk or on the network. This engine also supports advanced features like reductions, filters, user-defined functions and broadcasting. You can read some of our tutorials on how to perform advanced computations at: * https://github.com/Blosc/python-blosc2/blob/main/doc/getting_started/tutori… * https://github.com/Blosc/python-blosc2/blob/main/doc/getting_started/tutori… In addition, Python-Blosc2 aims to leverage the full C-Blosc2 functionality to support super-chunks (`SChunk <https://www.blosc.org/python-blosc2/reference/schunk_api.html>`_), multi-dimensional arrays (`NDArray <https://www.blosc.org/python-blosc2/reference/ndarray_api.html>`_), metadata, serialization and other bells and whistles introduced in C-Blosc2. **Note:** Blosc2 is meant to be backward compatible with Blosc(1) data. That means that it can read data generated with Blosc, but the opposite is not true (i.e. there is no *forward* compatibility). Sources repository ------------------ The sources and documentation are managed through github services at: https://github.com/Blosc/python-blosc2 Python-Blosc2 is distributed using the BSD license, see https://github.com/Blosc/python-blosc2/blob/main/LICENSE.txt for details. Mastodon feed ------------- Please follow https://fosstodon.org/@Blosc2 to get informed about the latest developments. - Blosc Development Team Make compression better

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ANN: psutil 6.0.0 released
by Giampaolo Rodola' June 18, 2024

June 18, 2024

Hello all, I'm glad to announce the release of psutil 6.0.0: https://github.com/giampaolo/psutil About ===== psutil (process and system utilities) is a cross-platform library for retrieving information on running processes and system utilization (CPU, memory, disks, network) in Python. It is useful mainly for system monitoring, profiling and limiting process resources and management of running processes. It implements many functionalities offered by command line tools such as: ps, top, lsof, netstat, ifconfig, who, df, kill, free, nice, ionice, iostat, iotop, uptime, pidof, tty, taskset, pmap. It currently supports Linux, Windows, macOS, Sun Solaris, FreeBSD, OpenBSD, NetBSD and AIX. Supported Python versions are 2.7 and 3.6+. PyPy is also known to work. What's new ========== **Enhancements** - #2109: ``maxfile`` and ``maxpath`` fields were removed from the namedtuple returned by `disk_partitions()`_. Reason: on network filesystems (NFS) this can potentially take a very long time to complete. - #2366, [Windows]: log debug message when using slower process APIs. - #2375, [macOS]: provide arm64 wheels. (patch by Matthieu Darbois) - #2396: `process_iter()`_ no longer pre-emptively checks whether PIDs have been reused. This makes `process_iter()`_ around 20x times faster. - #2396: a new ``psutil.process_iter.cache_clear()`` API can be used the clear `process_iter()`_ internal cache. - #2401, Support building with free-threaded CPython 3.13. - #2407: `Process.connections()`_ was renamed to `Process.net_connections()`_. The old name is still available, but it's deprecated (triggers a ``DeprecationWarning``) and will be removed in the future. - #2425: [Linux]: provide aarch64 wheels. (patch by Matthieu Darbois / Ben Raz) **Bug fixes** - #2250, [NetBSD]: `Process.cmdline()`_ sometimes fail with EBUSY. It usually happens for long cmdlines with lots of arguments. In this case retry getting the cmdline for up to 50 times, and return an empty list as last resort. - #2254, [Linux]: offline cpus raise NotImplementedError in cpu_freq() (patch by Shade Gladden) - #2272: Add pickle support to psutil Exceptions. - #2359, [Windows], [CRITICAL]: `pid_exists()`_ disagrees with `Process`_ on whether a pid exists when ERROR_ACCESS_DENIED. - #2360, [macOS]: can't compile on macOS < 10.13. (patch by Ryan Schmidt) - #2362, [macOS]: can't compile on macOS 10.11. (patch by Ryan Schmidt) - #2365, [macOS]: can't compile on macOS < 10.9. (patch by Ryan Schmidt) - #2395, [OpenBSD]: `pid_exists()`_ erroneously return True if the argument is a thread ID (TID) instead of a PID (process ID). - #2412, [macOS]: can't compile on macOS 10.4 PowerPC due to missing `MNT_` constants. **Porting notes** Version 6.0.0 introduces some changes which affect backward compatibility: - #2109: the namedtuple returned by `disk_partitions()`_' no longer has ``maxfile`` and ``maxpath`` fields. - #2396: `process_iter()`_ no longer pre-emptively checks whether PIDs have been reused. If you want to check for PID reusage you are supposed to use `Process.is_running()`_ against the yielded `Process`_ instances. That will also automatically remove reused PIDs from `process_iter()`_ internal cache. - #2407: `Process.connections()`_ was renamed to `Process.net_connections()`_. The old name is still available, but it's deprecated (triggers a ``DeprecationWarning``) and will be removed in the future. Links ===== - Home page: https://github.com/giampaolo/psutil - Download: https://pypi.org/project/psutil/#files - Documentation: http://psutil.readthedocs.io - What's new: https://github.com/giampaolo/psutil/blob/master/HISTORY.rst Hashes ====== psutil-6.0.0-cp27-cp27m-macosx_10_9_x86_64.whl md5: 35ce0ce7ea8c42b598b5176c09dae79a sha256: a021da3e881cd935e64a3d0a20983bda0bb4cf80e4f74fa9bfcb1bc5785360c6 psutil-6.0.0-cp27-cp27m-manylinux2010_i686.whl md5: 6bdf23a474386e58fa2b4c8929811800 sha256: 1287c2b95f1c0a364d23bc6f2ea2365a8d4d9b726a3be7294296ff7ba97c17f0 psutil-6.0.0-cp27-cp27m-manylinux2010_x86_64.whl md5: 81855a37f7808cd1af5a678c6338f133 sha256: a9a3dbfb4de4f18174528d87cc352d1f788b7496991cca33c6996f40c9e3c92c psutil-6.0.0-cp27-cp27mu-manylinux2010_i686.whl md5: 4c2514ddcda4351e005fb25c1259d150 sha256: 6ec7588fb3ddaec7344a825afe298db83fe01bfaaab39155fa84cf1c0d6b13c3 psutil-6.0.0-cp27-cp27mu-manylinux2010_x86_64.whl md5: c39ecfa852f728ba68d93c7aa97e451b sha256: 1e7c870afcb7d91fdea2b37c24aeb08f98b6d67257a5cb0a8bc3ac68d0f1a68c psutil-6.0.0-cp27-none-win32.whl md5: d2b38d0c16d0988ffbd5e5a10f61d2e3 sha256: 02b69001f44cc73c1c5279d02b30a817e339ceb258ad75997325e0e6169d8b35 psutil-6.0.0-cp27-none-win_amd64.whl md5: c5517d69f2a14d0f679512acd953de65 sha256: 21f1fb635deccd510f69f485b87433460a603919b45e2a324ad65b0cc74f8fb1 psutil-6.0.0-cp36-abi3-macosx_10_9_x86_64.whl md5: b20faa47dac5d7798665052cd1718bd5 sha256: c588a7e9b1173b6e866756dde596fd4cad94f9399daf99ad8c3258b3cb2b47a0 psutil-6.0.0-cp36-abi3-manylinux_2_12_i686.manylinux2010_i686.manylinux_2_17_i686.manylinux2014_i686.whl md5: 9f6b5dfaa34d5ffa33f81227d3afd9be sha256: 6ed2440ada7ef7d0d608f20ad89a04ec47d2d3ab7190896cd62ca5fc4fe08bf0 psutil-6.0.0-cp36-abi3-manylinux_2_12_x86_64.manylinux2010_x86_64.manylinux_2_17_x86_64.manylinux2014_x86_64.whl md5: 2a232d2d2f99aa75a2068c6d72129556 sha256: 5fd9a97c8e94059b0ef54a7d4baf13b405011176c3b6ff257c247cae0d560ecd psutil-6.0.0-cp36-abi3-manylinux_2_17_aarch64.manylinux2014_aarch64.whl md5: af1504b1291de825befe4dab508c9287 sha256: e2e8d0054fc88153ca0544f5c4d554d42e33df2e009c4ff42284ac9ebdef4132 psutil-6.0.0-cp36-cp36m-win32.whl md5: 67aee064c6452f35a02d6421fd500615 sha256: fc8c9510cde0146432bbdb433322861ee8c3efbf8589865c8bf8d21cb30c4d14 psutil-6.0.0-cp36-cp36m-win_amd64.whl md5: 085d567a054943f08a52917785c79356 sha256: 34859b8d8f423b86e4385ff3665d3f4d94be3cdf48221fbe476e883514fdb71c psutil-6.0.0-cp37-abi3-win32.whl md5: 3ccc6dd87c8bea6e5587376e395967b8 sha256: a495580d6bae27291324fe60cea0b5a7c23fa36a7cd35035a16d93bdcf076b9d psutil-6.0.0-cp37-abi3-win_amd64.whl md5: 34189005432c119fde809d99b317c38d sha256: 33ea5e1c975250a720b3a6609c490db40dae5d83a4eb315170c4fe0d8b1f34b3 psutil-6.0.0-cp38-abi3-macosx_11_0_arm64.whl md5: ea04c5243e35f708c6c45380b241851e sha256: ffe7fc9b6b36beadc8c322f84e1caff51e8703b88eee1da46d1e3a6ae11b4fd0 psutil-6.0.0.tar.gz md5: 5874bd773d2fe7da3c0817424f383033 sha256: 8faae4f310b6d969fa26ca0545338b21f73c6b15db7c4a8d934a5482faa818f2 -- Giampaolo - https://gmpy.dev/about

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NumPy 2.0.0 released
by Charles R Harris June 17, 2024

June 17, 2024

Hi All On behalf of the NumPy team, I'm pleased to announce the release of NumPy 2.0.0rc2. NumPy 2.0.0 is the first major release since 2006. It is the result of 11 months of development since the last feature release and is the work of 198 contributors spread over 1041 pull requests. It contains a large number of exciting new features as well as changes to both the Python and C APIs. This major release includes breaking changes that could not happen in a regular minor (feature) release - including an ABI break, changes to type promotion rules, and API changes which may not have been emitting deprecation warnings in 1.26.x. Key documents related to how to adapt to changes in NumPy 2.0 include: - The release notes on Github <https://github.com/numpy/numpy/releases/tag/v2.0.0> - The numpy-2-migration-guide <https://numpy.org/devdocs/numpy_2_0_migration_guide.html> - The numpy 2.0-specific advice in for downstream package authors <https://numpy.org/devdocs/dev/depending_on_numpy.html> Highlights include: - A new variable-length string dtype, StringDType, and a new `numpy.strings` namespace with performant ufuncs for string operations. - Support for float32 and long double in all `numpy.fft` functions. - Support for the array API standard in the main numpy namespace. - MacOS Accelerate support and binary wheels for macOS >=14. - A new tracing and introspection API. - Performance improvements. - Python API improvements. - C API improvements. This release supports Python 3.9-3.12. Wheels can be downloaded from PyPI <https://pypi.org/project/numpy/2.0.0>; source archives, release notes, and wheel hashes are available on Github <https://github.com/numpy/numpy/releases/tag/v2.0.0>. *Contributors* A total of 212 people contributed to this release. People with a "+" by their names contributed a patch for the first time. - @Algorithmist-Girl + - @DWesl - @Illviljan - @Searchingdays - @ellaella12 + - @liang3zy22 + - @matoro + - @mcp292 + - @mgunyho + - @msavinash + - @mykykh + - @pojaghi + - @pratiklp00 + - @stefan6419846 + - @undermyumbrella1 + - Aaron Meurer - Aditi Saluja + - Adrin Jalali + - Agriya Khetarpal + - Albert Steppi + - Alex Cabrera + - Alexander Grund - Andrea Bianchi + - Andreas Florath + - Andrew Ardill + - Andrew Ho + - Andrew Nelson - Andrey Rybakov + - Ankur Singh + - Anton Prosekin + - Antony Lee - Arun Kannawadi + - Bas van Beek - Ben Woodruff + - Bharat Raghunathan - Bhavya Alekhya + - Brandon Smith + - Brian Walshe + - Brigitta Sipőcz - Brock Mendel - Carl Meyer + - Charles Bousseau + - Charles Harris - Chris Sidebottom - Christian Lorentzen - Christian Veenhuis - Christoph Reiter - Christopher Sidebottom - Clément Robert - Cédric Hannotier - Cobalt Yang + - Gonçalo Bárias + - D.J. Ramones + - DanShatford + - Daniel Li + - Daniel Vanzo - Daval Parmar - Developer-Ecosystem-Engineering - Dhruv Rawat + - Dimitri Papadopoulos Orfanos - Edward E - Edward Yang + - Eisuke Kawashima + - Eliah Kagan + - Élie Goudout + - Elliott Sales de Andrade - Emil Olszewski + - Emily Hunt + - Éric Piel + - Eric Wieser - Eric Xie + - Even Rouault + - Evgeni Burovski - Filipe Laíns + - Francisco Sousa + - Ganesh Kathiresan - Gonçalo Bárias + - Gonzalo Tornaría + - Hans Meine - Heberto Mayorquin + - Heinz-Alexander Fuetterer + - Hood Chatham - Hugo van Kemenade - Ivan A. Melnikov + - Jacob M. Casey + - Jake Lishman + - Jake VanderPlas - James Oliver + - Jan Wassenberg + - Janukan Sivajeyan + - Johann Rohwer + - Johannes Kaisinger + - John Muradeli + - Joris Van den Bossche - Justus Magin - Jyn Spring 琴春 - Kai Striega - Kevin Sheppard - Kevin Wu + - Khawaja Junaid + - Kit Lee + - Kristian Minchev + - Kristoffer Pedersen + - Kuan-Wei Chiu + - Lane Votapka + - Larry Bradley - Leo Singer - Liang Yan + - Linus Sommer + - Logan Thomas - Lucas Colley + - Luiz Eduardo Amaral + - Lukas Geiger - Lysandros Nikolaou + - Maanas Arora + - Maharshi Basu + - Mahder Gebremedhin + - Marcel Bargull + - Marcel Loose + - Mark Mentovai + - Mark Ryan + - Marten van Kerkwijk - Mateusz Sokół - Matt Haberland - Matt Thompson + - Matthew Barber - Matthew Thompson + - Matthias Bussonnier - Matthias Koeppe - Matthias Schaufelberger + - Matti Picus - Maxwell Aladago - Maya Anderson + - Melissa Weber Mendonça - Meng Xiangzhuo + - Michael Kiffer - Miki Watanabe (渡邉美希) - Milan Curcic + - Miles Cranmer - Miro Hrončok + - Mohamed E. BRIKI + - Mohaned Qunaibit + - Mohit Kumar + - Muhammed Muhsin + - Mukulika Pahari - Munira Alduraibi + - Namami Shanker - Nathan Goldbaum - Nyakku Shigure + - Ola x Nilsson + - Olivier Mattelaer + - Olivier Grisel - Omid Rajaei - Pablo Losada + - Pamphile Roy - Paul Reece + - Pedro Kaj Kjellerup Nacht + - Peiyuan Liu + - Peter Hawkins - Pierre - Pieter Eendebak - Quentin Barthélemy + - Raghuveer Devulapalli - Ralf Gommers - Randy Eckenrode + - Raquel Braunschweig + - Richard Howe + - Robert Kern - Rohit Goswami - Romain Geissler + - Ronald van Elburg + - Ross Barnowski - Sam James + - Sam Van Kooten + - Samuel Albanie + - Sarah Wang + - Sarah Zwiep + - Sarah-Yifei-Wang + - Sarthak Dawar + - Sayantika Banik - Sayed Adel - Sean Cheah + - Sebastian Berg - Serge Guelton - Shalini Roy + - Shen Zhou - Shubhal Gupta + - Stefan van der Walt - Stefano Rivera + - Takumasa N. + - Taras Tsugrii - Thomas A Caswell - Thomas Grainger + - Thomas Li - Tim Hoffmann - Tim Paine + - Timo Röhling + - Trey Woodlief + - Tyler Reddy - Victor Tang + - Vladimir Fokow + - Warren Weckesser - Warrick Ball + - Will Ayd - William Andrea + - William Ayd + - Xiangyi Wang + - Yash Pethe + - Yuki K - Zach Brugh + - Zach Rottman + - Zolisa Bleki Cheers, Charles Harris

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[RELEASE] Python 3.12.4 released
by Thomas Wouters June 7, 2024

June 7, 2024

Last minute bugs in test environments notwithstanding, 3.12.4 is now available! https://www.python.org/downloads/release/python-3124/ <https://www.python.org/downloads/release/python-3124/> <https://discuss.python.org/t/python-3-12-4-now-available/55128#this-is-the-…>This is the third maintenance release of Python 3.12 Python 3.12 is the newest major release of the Python programming language, and it contains many new features and optimizations. 3.12.4 is the latest maintenance release, containing more than 250 bugfixes, build improvements and documentation changes since 3.12.3. <https://discuss.python.org/t/python-3-12-4-now-available/55128#major-new-fe…>Major new features of the 3.12 series, compared to 3.11 <https://discuss.python.org/t/python-3-12-4-now-available/55128#new-features…>New features - More flexible f-string parsing <https://docs.python.org/3.12/whatsnew/3.12.html#pep-701-syntactic-formaliza…>, allowing many things previously disallowed (PEP 701 <https://peps.python.org/pep-0701/>). - Support for the buffer protocol <https://docs.python.org/3.12/whatsnew/3.12.html#pep-688-making-the-buffer-p…> in Python code (PEP 688 <https://peps.python.org/pep-0688/>). - A new debugging/profiling API <https://docs.python.org/3.12/whatsnew/3.12.html#pep-669-low-impact-monitori…> (PEP 669 <https://peps.python.org/pep-0669/>). - Support for isolated subinterpreters <https://docs.python.org/3.12/whatsnew/3.12.html#pep-684-a-per-interpreter-g…> with separate Global Interpreter Locks (PEP 684 <https://peps.python.org/pep-0684>). - Even more improved error messages <https://docs.python.org/3.12/whatsnew/3.12.html#improved-error-messages>. More exceptions potentially caused by typos now make suggestions to the user. - Support for the Linux perf profiler <https://docs.python.org/3.12/howto/perf_profiling.html> to report Python function names in traces. - Many large and small performance improvements <https://docs.python.org/3.12/whatsnew/3.12.html#optimizations> (like PEP 709 <https://peps.python.org/pep-0709/> and support for the BOLT binary optimizer), delivering an estimated 5% overall performance improvement. <https://discuss.python.org/t/python-3-12-4-now-available/55128#type-annotat…>Type annotations - New type annotation syntax <https://docs.python.org/3.12/whatsnew/3.12.html#pep-695-type-parameter-synt…> for generic classes (PEP 695 <https://peps.python.org/pep-0695/>). - New override decorator <https://docs.python.org/3.12/whatsnew/3.12.html#pep-698-override-decorator-…> for methods (PEP 698 <https://peps.python.org/pep-0698>). <https://discuss.python.org/t/python-3-12-4-now-available/55128#deprecations…> Deprecations - The deprecated wstr and wstr_length members of the C implementation of unicode objects were removed, per PEP 623 <https://peps.python.org/pep-0623/>. - In the unittest module, a number of long deprecated methods and classes were removed. (They had been deprecated since Python 3.1 or 3.2). - The deprecated smtpd and distutils modules have been removed (see PEP 594 <https://peps.python.org/pep-0594/> and PEP 632 <https://peps.python.org/pep-0632/>. The setuptools package continues to provide the distutils module. - A number of other old, broken and deprecated functions, classes and methods <https://docs.python.org/3.12/whatsnew/3.12.html#removed> have been removed. - Invalid backslash escape sequences in strings now warn with SyntaxWarning instead of DeprecationWarning, making them more visible. (They will become syntax errors in the future.) - The internal representation of integers has changed in preparation for performance enhancements. (This should not affect most users as it is an internal detail, but it may cause problems for Cython-generated code.) For more details on the changes to Python 3.12, see What’s new in Python 3.12 <https://docs.python.org/3.12/whatsnew/3.12.html>. <https://discuss.python.org/t/python-3-12-4-now-available/55128#more-resourc…>More resources - Online Documentation <https://docs.python.org/3.12/>. - PEP 693 <https://www.python.org/dev/peps/pep-0693/>, the Python 3.12 Release Schedule. - Report bugs via GitHub Issues <https://github.com/python/cpython/issues>. - Help fund Python directly <https://www.python.org/psf/donations/python-dev/> or via GitHub Sponsors <https://github.com/sponsors/python>, and support the Python community <https://www.python.org/psf/donations/>. <https://discuss.python.org/t/python-3-12-4-now-available/55128#enjoy-the-ne…>Enjoy the 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 still quite sunny Sunnyvale, Your release team, Thomas Wouters @thomas <https://discuss.python.org/u/thomas> Łukasz Langa @ambv <https://discuss.python.org/u/ambv> Ned Deily @nad <https://discuss.python.org/u/nad> Steve Dower @steve.dower <https://discuss.python.org/u/steve.dower>

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[RELEASE] Python 3.13.0 beta 2 released.
by Thomas Wouters June 7, 2024

June 7, 2024

After a little bit of a delay (I blame the flat tire on my rental car), 3.13.0b2 is released: https://www.python.org/downloads/release/python-3130b2/ <https://www.python.org/downloads/release/python-3130b2/> <https://discuss.python.org/t/3-13-0b2-now-available/55056#this-is-a-beta-pr…>This is a beta preview of Python 3.13 Python 3.13 is still in development. This release, 3.13.0b2, is the second of four beta release previews of 3.13. Beta release previews are intended to give the wider community the opportunity to test new features and bug fixes and to prepare their projects to support the new feature release. We *strongly encourage* maintainers of third-party Python projects to *test with 3.13* during the beta phase and report issues found to the Python bug tracker <https://github.com/python/cpython/issues> as soon as possible. While the release is planned to be feature complete entering the beta phase, it is possible that features may be modified or, in rare cases, deleted up until the start of the release candidate phase (Tuesday 2024-07-30). Our goal is to have no ABI changes after beta 4 and as few code changes as possible after 3.13.0rc1, the first release candidate. To achieve that, it will be *extremely important* to get as much exposure for 3.13 as possible during the beta phase. *Two particularly noteworthy changes in beta 2 involve the macOS installer we provide:* - The minimum supported macOS version was changed from 10.9 to *10.13 (High Sierra)*. Older macOS versions will not be supported going forward. - The macOS installer package now includes an optional additional build of Python 3.13 with the experimental free-threading feature enabled. The free-threaded version, python3.13t, is separate from and co-exists with the traditional GIL-only installation. The free-threaded build is not installed by default; use the Customize option of the installer as explained in the installer readme. Since this is an experimental feature, there may be late-breaking issues found; see the free-threaded macOS build issue <https://github.com/python/cpython/issues/120098> on GitHub for the most recent status. Please keep in mind that this is a preview release and its use is *not* recommended for production environments. <https://discuss.python.org/t/3-13-0b2-now-available/55056#major-new-feature…>Major new features of the 3.13 series, compared to 3.12 Some of the new major new features and changes in Python 3.13 are: <https://discuss.python.org/t/3-13-0b2-now-available/55056#new-features-2>New features - A new and improved interactive interpreter <https://docs.python.org/3.13/whatsnew/3.13.html#a-better-interactive-interp…>, based on PyPy <https://pypy.org>’s, featuring multi-line editing and color support, as well as colorized exception tracebacks <https://docs.python.org/3.13/whatsnew/3.13.html#improved-error-messages> . - An *experimental* free-threaded build mode <https://docs.python.org/3.13/whatsnew/3.13.html#free-threaded-cpython>, which disables the Global Interpreter Lock, allowing threads to run more concurrently. - A preliminary, *experimental* JIT <https://docs.python.org/3.13/whatsnew/3.13.html#experimental-jit-compiler>, providing the ground work for significant performance improvements. - The (cyclic) garbage collector is now incremental <https://docs.python.org/3.13/whatsnew/3.13.html#incremental-garbage-collect…>, which should mean shorter pauses for collection in programs with a lot of objects. - A modified version of mimalloc <https://github.com/microsoft/mimalloc> is now included, optional but enabled by default if supported by the platform, and required for the free-threaded build mode. - Docstrings now have their leading indentation stripped <https://docs.python.org/3.13/whatsnew/3.13.html#other-language-changes>, reducing memory use and the size of .pyc files. (Most tools handling docstrings already strip leading indentation.) - The dbm module <https://docs.python.org/3.13/library/dbm.html> has a new dbm.sqlite3 backend <https://docs.python.org/3.13/whatsnew/3.13.html#dbm> that is used by default when creating new files. <https://discuss.python.org/t/3-13-0b2-now-available/55056#typing-3>Typing - Support for type defaults in type parameters <https://peps.python.org/pep-0696/>. - A new type narrowing annotation <https://peps.python.org/pep-0742/>, typing.TypeIs. - A new annotation for read-only items in TypeDicts <https://peps.python.org/pep-0705/>. <https://discuss.python.org/t/3-13-0b2-now-available/55056#removals-and-new-…>Removals and new deprecations - PEP 594 (Removing dead batteries from the standard library) <https://peps.python.org/pep-0594/> scheduled removals of many deprecated modules: aifc, audioop, chunk, cgi, cgitb, crypt, imghdr, mailcap, msilib, nis, nntplib, ossaudiodev, pipes, sndhdr, spwd, sunau, telnetlib, uu, xdrlib, lib2to3. - Many other removals <https://docs.python.org/3.13/whatsnew/3.13.html#removed> of deprecated classes, functions and methods in various standard library modules. - C API removals <https://docs.python.org/3.13/whatsnew/3.13.html#id10> and deprecations <https://docs.python.org/3.13/whatsnew/3.13.html#id9>. (Some removals present in alpha 1 were reverted in alpha 2, as the removals were deemed too disruptive at this time.) - New deprecations <https://docs.python.org/3.13/whatsnew/3.13.html#deprecated>, most of which are scheduled for removal from Python 3.15 or 3.16. (Hey, *fellow core developer,* if a feature you find important is missing from this list, let Thomas know <thomas(a)python.org>.) For more details on the changes to Python 3.13, see What’s new in Python 3.13 <https://docs.python.org/3.13/whatsnew/3.13.html>. The next pre-release of Python 3.13 will be 3.13.0b3, currently scheduled for 2024-06-25. <https://discuss.python.org/t/3-13-0b2-now-available/55056#more-resources-5>More resources - Online Documentation <https://docs.python.org/3.13/> - PEP 719 <https://peps.python.org/pep-0719/>, 3.13 Release Schedule - Report bugs at Issues · python/cpython · GitHub <https://github.com/python/cpython/issues>. - Help fund Python directly <https://www.python.org/psf/donations/python-dev/> (or via GitHub Sponsors <https://github.com/sponsors/python>), and support the Python community <https://www.python.org/psf/donations/>. <https://discuss.python.org/t/3-13-0b2-now-available/55056#enjoy-the-new-rel…>Enjoy the 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 *scorchingly* sunny Sunnyvale (hey, the name fits!), Your release team, Thomas Wouters @thomas <https://discuss.python.org/u/thomas> Łukasz Langa @ambv <https://discuss.python.org/u/ambv> Ned Deily @nad <https://discuss.python.org/u/nad> Steve Dower @steve.dower <https://discuss.python.org/u/steve.dower>

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PyCA cryptography 42.0.8 released
by Paul Kehrer June 4, 2024

June 4, 2024

PyCA cryptography 42.0.8 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, X.509, key derivation functions, and much more. We support Python 3.7+, and PyPy3 7.3.10+. Changelog (https://cryptography.io/en/latest/changelog/#v42-0-8): * Updated Windows, macOS, and Linux wheels to be compiled with OpenSSL 3.2.2. - Paul Kehrer (reaperhulk)

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