Python-announce-list November 2019

python-announce-list@python.org

25 participants
32 discussions

[baseline 0.2.1] Easy String Baseline
by Dan Gass 30 Mar '20

30 Mar '20

I am please to announce the availability of the "baseline" package. This tool streamlines creation and maintenance of tests which compare string output against a baseline. It offers a mechanism to compare a string against a baselined copy and update the baselined copy to match the new value when a mismatch occurs. The update process includes a manual step to facilitate a review of the change before acceptance. The tool uses multi-line string format for string baselines to improve readability for human review. Docs: https://baseline.readthedocs.io/en/latest/ PyPi: https://pypi.org/project/baseline/ Repo: https://github.com/dmgass/baseline License: MIT With Regards, Dan Gass (dan.gass at gmail) *********** Quick Start *********** Create an empty baseline with a triple quoted multi-line string. Place the ending triple quote on a separate line and indent it to the level you wish the string baseline update to be indented to. Add a compare of the string being tested to the baseline string. Then save the file as ``fox.py``: .. code-block:: python from baseline import Baseline expected = Baseline(""" """) test_string = "THE QUICK BROWN FOX\n JUMPS\nOVER THE LAZY DOG." assert test_string == expected Run ``fox.py`` and observe that the ``assert`` raises an exception since the strings are not equal. Because the comparison failed, the tool located the triple quoted baseline string in the source file and updated it with the miscompared value. When the interpretter exited, the tool saved the updated source file but changed the file name to ``fox.update.py``: .. code-block:: python from baseline import Baseline expected = Baseline(""" THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG. """) test_string = "THE QUICK BROWN FOX\n JUMPS\nOVER THE LAZY DOG." assert test_string == expected After reviewing the change with your favorite file differencing tool, accept the change by either manually overwriting the original file or use the ``baseline`` command line tool to scan the directory for updated scripts and accept them: .. code-block:: shell $ python -m baseline * Found updates for: fox.py Hit [ENTER] to update, [Ctrl-C] to cancel fox.update.py -> fox.py Run ``fox.py`` again and observe the ``assert`` does not raise an exception nor is a source file update generated. If in the future the test value changes, the ``assert`` will raise an exception and cause a new source file update to be generated. Simply repeat the review and acceptance step and you are back in business! <P><A HREF="https://baseline.readthedocs.io/en/latest/"> baseline 0.2.1</A> - Easy String Baseline (07-Jun-18)

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The Real-Time Use of Python in Data Science World!
by Anita Goyal 07 Mar '20

07 Mar '20

This course will help you to expertise the usage of Python in Data Science world. Carter your Python Knowledge so that it can be utilized to get the Insights of Data using Methodologies and Techniques of Data Science... Objective: Understand the concepts of Data science and Python You will be able to use Python in Discovering Data. You will have an idea of Statistical and Analytical methods to deal with huge data sets. You will gain an expertise on Regular Expressions, looping functions and concepts of Object Oriented Programming. You will be able to create business algorithms and data models using Python and it's techniques. Work on Real-life Projects will help you to get a practical experience of real scenarios of IT Industry. Start learning Python for Data Science from basics to advance levels here... https://goo.gl/070wXw

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[Release] Pyo 1.0.1 (Python dsp library)
by Olivier Bélanger 28 Nov '19

28 Nov '19

Hello all, I'm very happy to announce the release of pyo 1.0.1, available for python 2.7, 3.5, 3.6, 3.7 and 3.8. Pyo is a Python module written in C to help real-time digital signal processing script creation. It provides a complete set of classes to build audio softwares, compose algorithmic musics or simply explore audio processing.It is available for Windows, macOS and linux. It is released under the LGPL 3 license. Official web site: http://ajaxsoundstudio.com/software/pyo/ pyo's documentation: http://ajaxsoundstudio.com/pyodoc/ Latest sources and bug tracker: https://github.com/belangeo/pyo The package is now uploaded to pypi.org and can be installed (for 32-bit or 64-bit) under MacOS, Windows and linux with pip. Just run the command: python -m pip install pyo For all the details and how to uninstall version prior to 1.0.0, see this page in the documentation: http://ajaxsoundstudio.com/pyodoc/download.html Bug Fixes: - Audio server falls back to playback-only mode if jack server has no input ports. - Fixed setting value of ControlSlider from national keyboard layout. - Fixed segfault when CallAfter's callback results in deleting itself. - Fixed tkinter font size on MacOS (issue #163). New features: - Added a clear() method to Mixer object to delete all inputs at once. - Added new object: Binaural, 3D stereo spatialization. - Added a DC blocker inside the feedback loop of Harmonizer object. - Added setChannelNames(names) method to Spectrum and Scope objects. - Added beatToDur(beat, bpm) function. Events framework (new framework to sequence events): Set of tools to generate sequence of events. The purpose of the Event framework is to allow the user to generate a sequence of events with as few as possible parameters to specify. The Events object is the heart of the framework. An Events object computes parameters, generally designed with event generator objects, builds the events and plays the sequence. See the Events framework examples in the documentation for different use cases. - EventScale: Constructs a list of pitches according to its arguments. - EventGenerator: Base class for all event generators. - EventKey: An EventGenerator that allow to retrieve the value of another parameter. - EventSeq: Plays through an entire list of values many times. - EventSlide: Plays overlapping segments from a list of values. - EventIndex: Plays values from a list based on a position index. - EventMarkov: Applies a Markov algorithm to a list of values. - EventChoice: Plays values randomly chosen from a list. - EventDrunk: Performs a random walk over a list of values. - EventNoise: White, pink or brown noise generator. - EventCall: Calls a function, with any number of arguments, and uses its return value. - EventConditional: Executes one generator or the other depending on the result of a condition. - Events: Sequencing user-defined events to form musical phrases. Expr API: - let statment can now store a complex number. - Expr now can handle multiple input sources. - Expr now can generate multiple output signals. - constants (pi, twopi, e, sr) can be used without braces. New example categories: - How to use OSC with pyo - Utilities - Events framework - Evaluating prefix expression Olivier Belanger belangeo(a)gmail.com http://olivier.ajaxsoundstudio.com/ ---- <P><A HREF="http://ajaxsoundstudio.com/software/pyo/">Pyo 1.0.1</A> - short Python DSP library. (27-Nov-19)

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Guppy 3/Heapy 3.0.9
by YiFei 27 Nov '19

27 Nov '19

I am happy to announce Guppy 3 3.0.9 Guppy 3 is a library and programming environment for Python, currently providing in particular the Heapy subsystem, which supports object and heap memory sizing, profiling and debugging. It also includes a prototypical specification language, the Guppy Specification Language (GSL), which can be used to formally specify aspects of Python programs and generate tests and documentation from a common source. Guppy 3 is a fork of Guppy-PE, created by Sverker Nilsson for Python 2. The main news in this release: o Python 3.8 support o Guppy internals are again properly hidden from heap traversal o Collapse Glue.py exception tracebacks o Workaround multi-interpreter initialization with tracemalloc so we don't deadlock License: MIT The project homepage is on GitHub: https://github.com/zhuyifei1999/guppy3 Enjoy, YiFei Zhu

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Pygments 2.5.0 released, moved to Github
by Matthäus G. Chajdas 26 Nov '19

26 Nov '19

I'm happy to announce the release of Pygments 2.5.0. Pygments is a generic syntax highlighter written in Python. Pygments 2.5 is a major new release, adding new lexers as well as providing a large amount of fixes and lexer updates. Please have a look at the changelog <https://pygments.org/docs/changelog/>. With this release, we're also moving development from Bitbucket (due to the end of support for Mercurial) to GitHub. For new development, please check out: https://github.com/pygments/pygments Report bugs and feature requests in the issue tracker: <https://github.com/pygments/pygments/issues>. Thanks go to all the contributors of these lexers, and to all those who reported bugs and waited very patiently for this release. Download it from <https://pypi.org/project/Pygments/>, or look at the demonstration at <https://pygments.org/demo/>. Enjoy, Matthäus

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pytest 5.3.1 released
by Bruno Oliveira 26 Nov '19

26 Nov '19

pytest 5.3.1 has just been released to PyPI. This is a bug-fix release, being a drop-in replacement. To upgrade:: pip install --upgrade pytest The full changelog is available at https://docs.pytest.org/en/latest/changelog.html. Thanks to all who contributed to this release, among them: * Anthony Sottile * Bruno Oliveira * Daniel Hahler * Felix Yan * Florian Bruhin * Mark Dickinson * Nikolay Kondratyev * Steffen Schroeder * Zac Hatfield-Dodds Happy testing, The pytest Development Team

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ANN: psutil 5.6.6 released
by Giampaolo Rodola' 26 Nov '19

26 Nov '19

Hello all, I'm glad to announce the release of psutil 5.6.6: 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, both 32-bit and 64-bit architectures. Supported Python versions are 2.6, 2.7 and 3.4+. PyPy is also known to work. What's new ========== 2019-11-25 **Bug fixes** - #1179: [Linux] Process cmdline() now takes into account misbehaving processes renaming the command line and using inappropriate chars to separate args. - #1616: use of Py_DECREF instead of Py_CLEAR will result in double free and segfault (CVE). (patch by Riccardo Schirone) - #1619: [OpenBSD] compilation fails due to C syntax error. (patch by Nathan Houghton) 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 -- Giampaolo - http://grodola.blogspot.com

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ANN: SciPy 1.3.3
by Tyler Reddy 23 Nov '19

23 Nov '19

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 Hi all, On behalf of the SciPy development team I'm pleased to announce the release of SciPy 1.3.3, a bug fix release that addresses a DLL loading issue for wheels and a multiprocessing test issue. Sources and binary wheels can be found at: https://pypi.org/project/scipy/ and at: https://github.com/scipy/scipy/releases/tag/v1.3.3 One of a few ways to install this release with pip: pip install scipy==1.3.3 ===================== SciPy 1.3.3 Release Notes ===================== SciPy 1.3.3 is a bug-fix release with no new features compared to 1.3.2. In particular, a test suite issue involving multiprocessing was fixed for Windows and Python 3.8 on macOS. Wheels were also updated to place msvcp140.dll at the appropriate location, which was previously causing issues. Authors ======= Ilhan Polat Tyler Reddy Ralf Gommers Issues closed for 1.3.3 -------------------------------- * `#11033 <https://github.com/scipy/scipy/issues/11033>`__: deadlock on osx for python 3.8 Pull requests for 1.3.3 --------------------------------- * `#11034 <https://github.com/scipy/scipy/pull/11034>`__: MAINT: TST: Skip tests with multiprocessing that use "spawn" start method Checksums ========= MD5 ~~~ 69dabfe955c7092f5389a4374db57186 scipy-1.3.3-cp35-cp35m-macosx_10_6_intel.whl 23f3f5f48dc7893b9ff2a9a63adcf8c7 scipy-1.3.3-cp35-cp35m-manylinux1_i686.whl e80281d504225da4b081245ac44081b5 scipy-1.3.3-cp35-cp35m-manylinux1_x86_64.whl 7af194e334c13a9b13f8814f4e1695ce scipy-1.3.3-cp35-cp35m-win32.whl a39a6cb0436572f6149c87036288bd53 scipy-1.3.3-cp35-cp35m-win_amd64.whl e0b74a4370050d48175c5ef91c50dbeb scipy-1.3.3-cp36-cp36m-macosx_10_6_intel.whl 0bd21eb01dc34028d85fd2a9d752caf2 scipy-1.3.3-cp36-cp36m-manylinux1_i686.whl 64d9fb9b4ce5f9869834810dde4bc06f 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ANN: evolutions 0.8.1
by arobert＠interstitiality.net 23 Nov '19

23 Nov '19

Announcing the release of evolutions 0.8.1 Evolutions is a new Python 3 tool for managing relational database schema evolution and data migration, modeled on the Scala/Java play-evolutions library (https://www.playframework.com/documentation/2.7.x/Evolutions). It employs a minimalist approach supporting only linear history and pure SQL migrations that works and stays out of your way in development and production environments. Application framework agnostic. This release is feature complete but beta status. Not recommended for production. We will release 1.0 once there has been enough field use to make us confident that bugs have been flushed out and the tool is proven suitably robust. License: BSD Package: https://pypi.org/project/evolutions/0.8.1/ Development: https://github.com/arobertn/evolutions

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[RELEASE] Python 3.9.0a1 available for testing
by Łukasz Langa 20 Nov '19

20 Nov '19

Go get it here: https://www.python.org/downloads/release/python-390a1/ <https://www.python.org/downloads/release/python-390a1/> This is an early developer preview of Python 3.9 Python 3.9 is still in development. This releasee, 3.9.0a1 is the first of six planned alpha releases. Alpha releases are intended to make it easier to test the current state of new features and bug fixes and to test the release process. During the alpha phase, features may be added up until the start of the beta phase (2020-05-18) and, if necessary, may be modified or deleted up until the release candidate phase (2020-08-10). Please keep in mind that this is a preview release and its use is not recommended for production environments. Major new features of the 3.9 series, compared to 3.8 Many new features for Python 3.9 are still being planned and written. Among the new major new features and changes so far: PEP 602 <https://www.python.org/dev/peps/pep-0602/>, Python adopts a stable annual release cadence 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; 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/>. (Hey, fellow core developer, if a feature you find important is missing from this list, let Łukasz know <mailto:lukasz@python.org>.) The next pre-release of Python 3.9 will be 3.9.0a2, currently scheduled for 2019-12-16. - Ł

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Python-announce-list November 2019