Mailman 3 February 2020 - Python-announce-list

[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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[ANN] pvlib participating in GSoC
by Dr. Mark Alexander Mikofski PhD 27 Feb '20

27 Feb '20

Excited to announce that pvlib python <https://pvlib-python.readthedocs.io/en/latest/> is participating in its first ever Google Summer of Code GSoC under the NumFOCUS umbrella. If you are a student interested in modeling renewable solar energy please apply: https://summerofcode.withgoogle.com/organizations/4727917315096576/ For project ideas, take a look at the pvlib github wiki: https://summerofcode.withgoogle.com/organizations/4727917315096576/ and reach out on our Google Groups forum: https://groups.google.com/forum/#!forum/pvlib-python We look forward to hearing from you! -- Mark Mikofski, PhD (2005) *Fiat Lux*

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ANN: psutil 5.7.0 released
by Giampaolo Rodola' 27 Feb '20

27 Feb '20

Hello all, I'm glad to announce the release of psutil 5.7.0: 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, 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 ========== 2020-12-18 **Enhancements** - #1637: [SunOS] add partial support for old SunOS 5.10 Update 0 to 3. - #1648: [Linux] sensors_temperatures() looks into an additional /sys/device/ directory for additional data. (patch by Javad Karabi) - #1652: [Windows] dropped support for Windows XP and Windows Server 2003. Minimum supported Windows version now is Windows Vista. - #1671: [FreeBSD] add CI testing/service for FreeBSD (Cirrus CI). - #1677: [Windows] process exe() will succeed for all process PIDs (instead of raising AccessDenied). - #1679: [Windows] net_connections() and Process.connections() are 10% faster. - #1682: [PyPy] added CI / test integration for PyPy via Travis. - #1686: [Windows] added support for PyPy on Windows. - #1693: [Windows] boot_time(), Process.create_time() and users()'s login time now have 1 micro second precision (before the precision was of 1 second). **Bug fixes** - #1538: [NetBSD] process cwd() may return ENOENT instead of NoSuchProcess. - #1627: [Linux] Process.memory_maps() can raise KeyError. - #1642: [SunOS] querying basic info for PID 0 results in FileNotFoundError. - #1646: [FreeBSD] many Process methods may cause a segfault on FreeBSD 12.0 due to a backward incompatible change in a C type introduced in 12.0. - #1656: [Windows] Process.memory_full_info() raises AccessDenied even for the current user and os.getpid(). - #1660: [Windows] Process.open_files() complete rewrite + check of errors. - #1662: [Windows] process exe() may raise WinError 0. - #1665: [Linux] disk_io_counters() does not take into account extra fields added to recent kernels. (patch by Mike Hommey) - #1672: use the right C type when dealing with PIDs (int or long). Thus far (long) was almost always assumed, which is wrong on most platforms. - #1673: [OpenBSD] Process connections(), num_fds() and threads() returned improper exception if process is gone. - #1674: [SunOS] disk_partitions() may raise OSError. - #1684: [Linux] disk_io_counters() may raise ValueError on systems not having /proc/diskstats. - #1695: [Linux] could not compile on kernels <= 2.6.13 due to PSUTIL_HAVE_IOPRIO not being defined. (patch by Anselm Kruis) 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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EuroPython 2020: Call for Proposals opens on March 9th
by M.-A. Lemburg 26 Feb '20

26 Feb '20

We are happy to announce that the Call for Proposals will open on March 9. It will be left open for three weeks and then close on: Sunday, March 29 23:59:59 CEST While you wait for submissions to open, please check out the Call for Proposals details on our pre-launch website: https://ep2020.europython.eu/call-for-proposals/ We’re looking for proposals on every aspect of Python: all levels of programming from novice to advanced, applications, frameworks, data science, Python projects, internals or topics which you’re excited about, your experiences with Python and its ecosystem, creative or artistic things you’ve done with Python, to name a few. EuroPython is a community conference and we are eager to hear about your use of Python. Since feedback shows that our audience is very interested in advanced topics, we’d appreciate more entries in this category for EuroPython 2020. Please help spread word about Call for Proposals to anyone who might be interested. Thanks. Some additional updates: ------------------------ - We’re working on launching the website, CfP and ticket sales in March. - We are also preparing the sponsorship packages and should have them ready early in March as well. Early bird sponsors will again receive a 10% discount on the package price. If you’re interested in becoming a launch sponsor, please contact our sponsor team at sponsoring(a)europython.eu. 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/611042486524280832/europython-2020-call-for… Tweet: https://twitter.com/europython/status/1232708258525302784 Enjoy, -- EuroPython 2020 Team https://ep2020.europython.eu/ https://www.europython-society.org/

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Python 3.8.2 and 3.9.0a4 are now available
by Łukasz Langa 26 Feb '20

26 Feb '20

On behalf of the entire Python development community, and the currently serving Python release team in particular, I’m pleased to announce the release of two of the latest Python editions. Python 3.8.2 Python 3.8.2 is the second maintenance release of Python 3.8 and contains two months worth of bug fixes. Detailed information about all changes made in 3.8.2 can be found in its change log <https://docs.python.org/release/3.8.2/whatsnew/changelog.html#python-3-8-2-…>. Note that compared to 3.8.1, version 3.8.2 also contains the changes introduced in 3.8.2rc1 and 3.8.2rc2. The Python 3.8 series is the newest feature release of the Python language, and it contains many new features and optimizations. You can find Python 3.8.2 here: https://www.python.org/downloads/release/python-382/ <https://www.python.org/downloads/release/python-382/> 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. Maintenance releases for the 3.8 series will continue at regular bi-monthly intervals, with 3.8.3 planned for April 2020 (at the PyCon US sprints <https://us.pycon.org/2020/events/sprints/>). Python 3.9.0a4 An early developer preview of Python 3.9 is also ready: https://www.python.org/downloads/release/python-390a4/ <https://www.python.org/downloads/release/python-390a4/> Python 3.9 is still in development. This releasee, 3.9.0a4 is the fourth 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. We hope you enjoy both! 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/ <https://www.python.org/psf/> Your friendly release team, Ned Deily Steve Dower Łukasz Langa

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[ANN] copernic v0.1.1: Versioned structured data, with change-request mechanic, at scale.
by Amirouche Boubekki 23 Feb '20

23 Feb '20

I'm pleased to announce the release of copernic v0.1.1 This project wants to be a scalable application that support a change-request mechanic similar to github pull-request or gitlab merge-request, on any structured data. That includes relational data, graph-like data and tabular data. Eventually, it should scale both in terms of data size and number of contributions. It is powered by Django and FoundationDB. Like wikipedia or wikidata, there is a single version of truth. In other words, every user gets the same data. There is no per-user data repositories. Change-request work in a way that similar to git stash. That is the diff, additions and deletions, is stored in the database like the rest of the data. Until the change is applied by a super user. The data part of the change-request is invisible outside the change-request. Once a super user applies the change, that is merely swapping a single `None` value with a timestamp, the history is properly serialized realizing a single branch history. It it possible to do time traveling queries, like freebase did. It is not exposed in the web user interface. There is always an up-to-date image of the latest data, to speed up queries. But the history only store the differences between successive versions. The code is at: https://github.com/amirouche/copernic A demo is available at: http://copernic.space/about/ The license is AGPLv3+ Enjoy!

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[ANN] RISE 5.6.1 is out!
by Damián Avila 21 Feb '20

21 Feb '20

We're pleased to announce the release of *RISE* 5.6.1! *What is RISE?* RISE lets you show your Jupyter notebook rendered as an executable *Reveal.js*-based slideshow. It is your very same notebook but in a *slidy* way! For more information about this release, please visit the following blog post: http://damianavila.github.io/blog/posts/rise-561-is-out.html. Have fun!! -- *Damián Avila*

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EuroPython 2020: Presenting our conference logo for Dublin
by M.-A. Lemburg 18 Feb '20

18 Feb '20

We’re pleased to announce our official conference logo for EuroPython 2020, July 20-26, in Dublin, Ireland: * https://ep2020.europython.eu/ * The logo is inspired by the colors and symbols often associated with Ireland: the shamrock and the Celtic harp. It was again created by our designer Jessica Peña Moro from Simétriko, who had already helped us in previous years with the conference design. Some additional updates: ------------------------ - We’re working on launching the mein website, the CFP and ticket sales in March. - We are also preparing the sponsorship packages and should have them ready early in March as well. Early bird sponsors will again receive a 10% discount on the package price. If you’re interested in becoming a launch sponsor, please contact our sponsor team at sponsoring(a)europython.eu. 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/190894113857/europython-2020-presenting-our… Tweet: https://twitter.com/europython/status/1229770448516395008 Enjoy, -- EuroPython 2020 Team https://ep2020.europython.eu/ https://www.europython-society.org/

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[RELEASE] Python 3.8.2rc2 is now available for testing
by Łukasz Langa 18 Feb '20

18 Feb '20

Python 3.8.2rc2 is the second release candidate of the second maintenance release of Python 3.8. Go get it here: https://www.python.org/downloads/release/python-382rc2/ <https://www.python.org/downloads/release/python-382rc2/> Why a second release candidate? The major reason for RC2 is that GH-16839 <https://github.com/python/cpython/pull/16839> has been reverted. The original change was supposed to fix for some edge cases in urlparse (numeric paths, recognizing netlocs without //; details in BPO-27657 <https://bugs.python.org/issue27657>). Unfortunately it broke third parties relying on the pre-existing undefined behavior. Sadly, the reverted fix has already been released as part of 3.8.1 (and 3.7.6 where it’s also reverted now). As such, even though the revert is itself a bug fix, it is incompatible with the behavior of 3.8.1. Please test. Timeline Assuming no critical problems are found prior to 2020-02-24, the currently scheduled release date for 3.8.2 (as well as 3.9.0 alpha 4!), no code changes are planned between this release candidate and the final release. That being said, please keep in mind that this is a pre-release of 3.8.2 and as such its main purpose is testing. Maintenance releases for the 3.8 series will continue at regular bi-monthly intervals, with 3.8.3 planned for April 2020 (during sprints at PyCon US). 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. Detailed information about all changes made in version 3.8.2 specifically can be found in its change log <https://docs.python.org/release/3.8.2rc2/whatsnew/changelog.html#python-3-8…>. 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. https://www.python.org/psf/ <https://www.python.org/psf/> - Ł

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