Python-announce-list January 2019

python-announce-list@python.org

16 participants
23 discussions

by Dan Gass

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)

9 months, 3 weeks

The Real-Time Use of Python in Data Science World!

by Anita Goyal

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

10 months, 2 weeks

[ANN] pvlib-python v0.6.1: predicting power from PV (renweable solar energy)

by Mark Alexander Mikofski

pvlib-0.6.1 is now available PyPI: https://pypi.org/project/pvlib/ Read the Docs: https://pvlib-python.readthedocs.io/en/latest/ GitHub: https://github.com/pvlib/pvlib-python -- Mark Mikofski, PhD (2005) *Fiat Lux*

1 year, 11 months

EPS: Announcing the Guido van Rossum Core Developer Grant

by M.-A. Lemburg

At the last General Assembly of the EuroPython Society (EPS) at EuroPython 2018 in Edinburgh, we voted on a new grant program we want to put in place for future EuroPython conferences. We all love Python and this is one of the main reasons we are putting on EuroPython year after year, serving the "cast of thousands" which support Python. But we also believe it is important to give something back to the main team of developers who have contributed lots of their time and energy to make Python happen: the Python Core Developers. This group is small, works countless hours, often in their free time and often close to burnout due to not enough new core developers joining the team. Free Tickets for Python Core Developers --------------------------------------- To help with growing the team, putting it more into the spotlight and give them a place to meet, demonstrate their work and a stage to invite new developers, we decided to give Python Core Developers free entry to future EuroPython conferences, starting with EuroPython 2019 in Basel, Switzerland In recognition of Guido’s almost 20 years of leading this team, and with his permission, we have named the grant “Guido van Rossum Core Developer Grant”. Details of the grant program are available on our core grant page: https://www.europython-society.org/core-grant PS: If you are a core developer and want to organize a workshop, language summit or similar event at EuroPython 2019, please get in touch with our program workgroup (program(a)europython.eu) soon, so that we can arrange rooms, slots, etc. PPS: If you want to become a core developer, please have a look at the Python Dev Guide: https://devguide.python.org/coredev/ 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://www.europython-society.org/post/182445627020/announcing-the-guido-v… Tweet: https://twitter.com/europythons/status/1090901995635073024 Enjoy, -- EuroPython Society https://ep2019.europython.eu/ https://www.europython-society.org/

1 year, 11 months

pytest 4.2.0 released

by Bruno Oliveira

The pytest team is proud to announce the 4.2.0 release! pytest is a mature Python testing tool with more than a 2000 tests against itself, passing on many different interpreters and platforms. This release contains a number of bugs fixes and improvements, so users are encouraged to take a look at the CHANGELOG: https://docs.pytest.org/en/latest/changelog.html For complete documentation, please visit: https://docs.pytest.org/en/latest/ As usual, you can upgrade from pypi via: pip install -U pytest Thanks to all who contributed to this release, among them: * Adam Uhlir * Anthony Sottile * Bruno Oliveira * Christopher Dignam * Daniel Hahler * Joseph Hunkeler * Kristoffer Nordstroem * Ronny Pfannschmidt * Thomas Hisch * wim glenn Happy testing, The Pytest Development Team

1 year, 11 months

ANN: SMIL - Small Morphological Image Library

by Jose-Marcio Martins da Cruz

Announcement: SMIL 0.9.1 ======================== Hi all, I'm pleased to announce SMIL - Simple Morphological Image Library - v. 0.9.1 SMIL is a library with all basic and some advanced mathematical morphology features which can be extended with plugins and user modules. Among its features it can handle 2D and 3D images and can handle data from/to NumPy data. It's been developed in C++ and has a Python interface thanks to Swig. SMIL is a product of CMM, the research Center of Mathematical Morphology of Mines-Paristech, where the discipline of Mathematical Morphology was created in the 60's by Jean Serra and Georges Matheron. SMIL is distributed with GPL license. We use SMIL in our research and teaching activities in the field and may, eventually, be used besides scikit-image. You can find SMIL - binaries and documentation - at our web site : http://smil.cmm.mines-paristech.fr or the source code at : https://github.com/ensmp-cmm/smil Thanks Jose-Marcio -- --------------------------------------------------------------- Jose Marcio MARTINS DA CRUZ, Ph.D. Ecole des Mines de Paris CMM - Centre de Morphologie Mathématique --------------------------------------------------------------- Spam : http://amzn.to/LEscRu ou http://bit.ly/SpamJM ---------------------------------------------------------------

1 year, 11 months

ANN: A new version (0.4.4) of python-gnupg has been released. It contains a security-related change - please update to this version

by Vinay Sajip

A new version of the Python module which wraps GnuPG has been released. What Changed?=============This is an enhancement and security-fix release, and all users are stronglyencouraged to upgrade. Brief summary: * Fixed #108: Changed how any return value from the on_data callable is processed. In earlier versions, the return value was ignored. In this version, if the return value is False, the data received from gpg is not buffered. Otherwise (if the value is None or True, for example), the data is buffered as normal. This functionality can be used to do your own buffering, or to prevent buffering altogether. The on_data callable is also called once with an empty byte-string to signal the end of data from gpg. * Fixed #97: Added an additional attribute check_fingerprint_collisions to GPG instances, which defaults to False. It seems that gpg is happy to have duplicate keys and fingerprints in a keyring, so we can't be too strict. A user can set this attribute of an instance to True to trigger a check for collisions. * Fixed #111: With GnuPG 2.2.7 or later, provide the fingerprint of a signing key for a failed signature verification, if available. * Fixed #21: For verification where multiple signatures are involved, a mapping of signature_ids to fingerprint, keyid, username, creation date, creation timestamp and expiry timestamp is provided. * Added a check to disallow certain control characters ('\r', '\n', NUL) in passphrases. This fix mitigates against CVE-2019-6690. This release [2] has been signed with my code signing key: Vinay Sajip (CODE SIGNING KEY) <vinay_sajip at yahoo.co.uk>Fingerprint: CA74 9061 914E AC13 8E66 EADB 9147 B477 339A 9B86 Recent changes to PyPI don't show the GPG signature with the download links.An alternative download source where the signatures are available is the project'sown downloads page [5]. What Does It Do?================The gnupg module allows Python programs to make use of thefunctionality provided by the Gnu Privacy Guard (abbreviated GPG orGnuPG). Using this module, Python programs can encrypt and decryptdata, digitally sign documents and verify digital signatures, manage(generate, list and delete) encryption keys, using proven Public KeyInfrastructure (PKI) encryption technology based on OpenPGP. This module is expected to be used with Python versions >= 2.4, as itmakes use of the subprocess module which appeared in that version ofPython. This module is a newer version derived from earlier work byAndrew Kuchling, Richard Jones and Steve Traugott. A test suite using unittest is included with the source distribution. Simple usage: >>> import gnupg>>> gpg = gnupg.GPG(gnupghome='/path/to/keyring/directory')>>> gpg.list_keys() [{...'fingerprint': 'F819EE7705497D73E3CCEE65197D5DAC68F1AAB2','keyid': '197D5DAC68F1AAB2','length': '1024','type': 'pub','uids': ['', 'Gary Gross (A test user) <gary.gr... at gamma.com>']},{...'fingerprint': '37F24DD4B918CC264D4F31D60C5FEFA7A921FC4A','keyid': '0C5FEFA7A921FC4A','length': '1024',...'uids': ['', 'Danny Davis (A test user) <danny.da... at delta.com>']}]>>> encrypted = gpg.encrypt("Hello, world!", ['0C5FEFA7A921FC4A'])>>> str(encrypted) '-----BEGIN PGP MESSAGE-----\nVersion: GnuPG v1.4.9 (GNU/Linux)\n\nhQIOA/6NHMDTXUwcEAf.-----END PGP MESSAGE-----\n'>>> decrypted = gpg.decrypt(str(encrypted), passphrase='secret')>>> str(decrypted) 'Hello, world!'>>> signed = gpg.sign("Goodbye, world!", passphrase='secret')>>> verified = gpg.verify(str(signed))>>> print "Verified" if verified else "Not verified" 'Verified' As always, your feedback is most welcome (especially bug reports [3],patches and suggestions for improvement, or any other points via themailing list/discussion group [4]). Enjoy! Cheers Vinay SajipRed Dove Consultants Ltd. [1] https://bitbucket.org/vinay.sajip/python-gnupg[2] https://pypi.python.org/pypi/python-gnupg/0.4.4[3] https://bitbucket.org/vinay.sajip/python-gnupg/issues[4] https://groups.google.com/forum/#!forum/python-gnupg[5] https://bitbucket.org/vinay.sajip/python-gnupg/downloads/

1 year, 11 months

ANN: gcc-python-plugin 0.17

by David Malcolm

gcc-python-plugin is a plugin for GCC 4.6 onwards which embeds the CPython interpreter within GCC, allowing you to write new compiler warnings in Python, generate code visualizations, etc. This release adds support for gcc 9 (along with continued support for gcc 4.6, 4.7, 4.8, 4.9, 5, 6, 7, and 8). Unfortunately, the reference-count checker no longer works for gcc 7 onwards, so it is disabled when embedded in those builds of gcc. Additionally, this release contains the following improvements: * the plugin can now be built in a separate build directory from the source directory (thanks to Tom de Vries) * gcc-with-cpychecker gained a --cpychecker-verbose option Tarball releases are available at: https://github.com/davidmalcolm/gcc-python-plugin/releases Prebuilt-documentation can be seen at: http://gcc-python-plugin.readthedocs.org/en/latest/index.html The plugin is Free Software, licensed under the GPLv3 or later. Enjoy! Dave Malcolm

1 year, 11 months

ANN: psutil 5.5.0 released

by Giampaolo Rodola'

Hello all, I'm glad to announce the release of psutil 5.5.0: 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, with Python versions from 2.6 to 3.6. PyPy is also known to work. What's new ========== 2019-0-23 **Enhancements** - #1350: [FreeBSD] added support for sensors_temperatures(). (patch by Alex Manuskin) - #1352: [FreeBSD] added support for CPU frequency. (patch by Alex Manuskin) **Bug fixes** - #1111: Process.oneshot() is now thread safe. - #1354: [Linux] disk_io_counters() fails on Linux kernel 4.18+. - #1357: [Linux] Process' memory_maps() and io_counters() method are no longer exposed if not supported by the kernel. - #1368: [Windows] fix psutil.Process().ionice(...) mismatch. (patch by EccoTheFlintstone) - #1370: [Windows] improper usage of CloseHandle() may lead to override the original error code when raising an exception. - #1373: incorrect handling of cache in Process.oneshot() context causes Process instances to return incorrect results. - #1376: [Windows] OpenProcess() now uses PROCESS_QUERY_LIMITED_INFORMATION access rights wherever possible, resulting in less AccessDenied exceptions being thrown for system processes. - #1376: [Windows] check if variable is NULL before free()ing it. (patch by EccoTheFlintstone) 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

1 year, 11 months

PyCA cryptography 2.5 released

by Paul Kehrer

PyCA cryptography 2.5 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 3.4+, and PyPy. Changelog (https://cryptography.io/en/latest/changelog/#v2-5): * BACKWARDS INCOMPATIBLE: U-label strings were deprecated in version 2.1, but this version removes the default idna dependency as well. If you still need this deprecated path please install cryptography with the idna extra: pip install cryptography[idna]. * BACKWARDS INCOMPATIBLE: The minimum supported PyPy version is now 5.4. * Numerous classes and functions have been updated to allow bytes-like types for keying material and passwords, including symmetric algorithms, AEAD ciphers, KDFs, loading asymmetric keys, and one time password classes. * Updated Windows, macOS, and manylinux1 wheels to be compiled with OpenSSL 1.1.1a. * Added support for SHA512_224 and SHA512_256 when using OpenSSL 1.1.1. * Added support for SHA3_224, SHA3_256, SHA3_384, and SHA3_512 when using OpenSSL 1.1.1. * Added support for X448 key exchange when using OpenSSL 1.1.1. * Added support for SHAKE128 and SHAKE256 when using OpenSSL 1.1.1. * Added initial support for parsing PKCS12 files with load_key_and_certificates(). * Added support for IssuingDistributionPoint. * Added rfc4514_string() method to x509.Name, x509.RelativeDistinguishedName, and x509.NameAttribute to format the name or component an RFC 4514 Distinguished Name string. * Added from_encoded_point(), which immediately checks if the point is on the curve and supports compressed points. Deprecated the previous method from_encoded_point(). * Added signature_hash_algorithm to OCSPResponse. * Updated X25519 key exchange support to allow additional serialization methods. Calling public_bytes() with no arguments has been deprecated. * Added support for encoding compressed and uncompressed points via public_bytes(). Deprecated the previous method encode_point(). -Paul Kehrer (reaperhulk)

1 year, 11 months

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Python-announce-list January 2019