Mailman 3 February 2019 - Python-announce-list

New docs: using tkinter GUIs on Android
by Mark Lutz Feb. 8, 2019

Feb. 8, 2019

I've just posted guides for running Python tkinter programs on Android in the Pydroid 3 app's IDE. The first covers multiple programs, and the second focuses on a content-sync program: https://learning-python.com/using-tkinter-programs-on-android.html https://learning-python.com/mergeall-android-scripts/_README.html And yes, you read that right: Python tkinter GUIs, including the calendar, calculator, text editor, and incremental backup tool described in these docs, now work on your smartphone in addition to your PC, though they come with a few rough edges (and advertising) on Android today. And there was much rejoicing, --M. Lutz (http://learning-python.com)

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CheetahTemplate 3.2.0
by Oleg Broytman Feb. 6, 2019

Feb. 6, 2019

Hello! I'm pleased to announce version 3.2.0, the first stable release of branch 3.2 of CheetahTemplate3. What's new in CheetahTemplate3 ============================== Features: - Dropped support for Python 3.3. - Implement LoadTemplate.loadTemplate{Module,Class} to load templates from .py[co], .py or .tmpl. - CheetahDirOwner caches compiled template in the template directory. - CheetahDirOwner now silently ignores errors on compiled templates writing. To get tracebacks set CheetahDirOwner.debuglevel = 1. - CheetahDirOwner and DirOwner byte-compile compiled templates to .pyc/.pyo. Errors on writing are silently ignored. Minor features: - Implement Compiler.__unicode__ under Python 2 and Compiler.__bytes__ under Python 3. Bug fixes: - Fix a bug in Compiler.__str__: under Python 2 the method now always returns str; it encodes unicode to str using encoding from the compiled source. Under Python 3 the method decodes bytes to str. Code: - Source code was made flake8-clean using the latest flake8. Documentation: - Remove outdated section markers. - Better documentation for ImportHooks. - Add an example of a universal makefile. CI: - Run tests with Python 3.7. - At travis deploy sdists and wheels for tags. What is CheetahTemplate3 ======================== Cheetah3 is a free and open source template engine. It's a fork of the original CheetahTemplate library. Python 2.7 or 3.4+ is required. Where is CheetahTemplate3 ========================= Site: http://cheetahtemplate.org/ Development: https://github.com/CheetahTemplate3 Download: https://pypi.org/project/Cheetah3/3.2.0/ News and changes: http://cheetahtemplate.org/news.html StackOverflow: https://stackoverflow.com/questions/tagged/cheetah Example ======= Below is a simple example of some Cheetah code, as you can see it's practically Python. You can import, inherit and define methods just like in a regular Python module, since that's what your Cheetah templates are compiled to :) :: #from Cheetah.Template import Template #extends Template #set $people = [{'name' : 'Tom', 'mood' : 'Happy'}, {'name' : 'Dick', 'mood' : 'Sad'}, {'name' : 'Harry', 'mood' : 'Hairy'}] <strong>How are you feeling?</strong> <ul> #for $person in $people <li> $person['name'] is $person['mood'] </li> #end for </ul> Oleg. -- Oleg Broytman https://phdru.name/ phd(a)phdru.name Programmers don't die, they just GOSUB without RETURN.

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SciPy 2019 Conference - 10 days left for submissions, registration now open
by Paul Ivanov Feb. 5, 2019

Feb. 5, 2019

SciPy 2019, the 18th annual Scientific Computing with Python conference, will be held July 8-14, 2019 in Austin, Texas. The annual SciPy Conference brings together over 800 participants from industry, academia, and government to showcase their latest projects, learn from skilled users and developers, and collaborate on code development. The call for abstracts for SciPy 2019 for talks, posters and tutorials is now open. The original deadline for submissions has been extended and the new deadline is February 15, 2019. Conference Website: https://www.scipy2019.scipy.org/ Submission Website: https://easychair.org/conferences/?conf=scipy2019 *Talks and Posters (July 10-12, 2019)* In addition to the general track, this year will have specialized tracks focused on: - Data Driven Discoveries (including Machine Learning and Data Science) - Open Source Communities (Sustainability) *Mini Symposia* - Science Communication through Visualization - Neuroscience and Cognitive Science - Image Processing - Earth, Ocean, Geo and Atmospheric Science There will also be a SciPy Tools Plenary Session each day with 2 to 5 minute updates on tools and libraries. *Tutorials (July 8-9, 2019)* Tutorials should be focused on covering a well-defined topic in a hands-on manner. We are looking for useful techniques or packages, helping new or advanced Python programmers develop better or faster scientific applications. We encourage submissions to be designed to allow at least 50% of the time for hands-on exercises even if this means the subject matter needs to be limited. Tutorials will be 4 hours in duration. In your tutorial application, you can indicate what prerequisite skills and knowledge will be needed for your tutorial, and the approximate expected level of knowledge of your students (i.e., beginner, intermediate, advanced). Instructors of accepted tutorials will receive a stipend. -- _ / \ A* \^ - ,./ _.`\\ / \ / ,--.S \/ \ / `"~,_ \ \ __o ? _ \<,_ /:\ --(_)/-(_)----.../ | \ --------------.......J Paul Ivanov http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7 -- _ / \ A* \^ - ,./ _.`\\ / \ / ,--.S \/ \ / `"~,_ \ \ __o ? _ \<,_ /:\ --(_)/-(_)----.../ | \ --------------.......J Paul Ivanov http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7 -- _ / \ A* \^ - ,./ _.`\\ / \ / ,--.S \/ \ / `"~,_ \ \ __o ? _ \<,_ /:\ --(_)/-(_)----.../ | \ --------------.......J Paul Ivanov http://pirsquared.org | GPG/PGP key id: 0x0F3E28F7

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cx_Oracle 7.1
by Anthony Tuininga Feb. 5, 2019

Feb. 5, 2019

What is cx_Oracle? cx_Oracle is a Python extension module that enables access to Oracle Database for Python 3.x and 2.x and conforms to the Python database API 2.0 specifications with a number of enhancements. Where do I get it? https://oracle.github.io/python-cx_Oracle The easiest method to install/upgrade cx_Oracle is via pip as in python -m pip install cx_Oracle --upgrade What's new? This release focused on session pools. Specifically, a session callback may now be specified when a pool is created. This allows an application to improve performance by reducing the number of round trips to the database needed in order to set session state. A number of smaller enhancements and bug fixes were also made. See the full release notes for all of the details: https://cx-oracle.readthedocs.io/en/latest/releasenotes.html#version-7-1-fe… Please provide any feedback via GitHub issues ( https://github.com/oracle/python-cx_Oracle/issues).

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[RELEASE] Python 3.8.0a1 is now available for testing
by Łukasz Langa Feb. 4, 2019

Feb. 4, 2019

I packaged my first release. *wipes sweat off of face* Go get it here: https://www.python.org/downloads/release/python-380a1/ Python 3.8.0a1 is the first of four planned alpha releases of Python 3.8, the next feature release of Python. During the alpha phase, Python 3.8 remains under heavy development: additional features will be added and existing features may be modified or deleted. Please keep in mind that this is a preview release and its use is not recommended for production environments. The next preview release, 3.8.0a2, is planned for 2019-02-24. Apart from building the Mac installers, Ned helped me a lot with the process, thank you! Ernest was super quick providing me with all required access and fixing a Unicode problem I found in Salt, thank you! Finally, this release was made on a train to Düsseldorf. There's a PyPy sprint there. The train is pretty cool, makes this "Wasm! Wasm!" sound. - Ł

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NumPy 1.16.1 release
by Charles R Harris Feb. 1, 2019

Feb. 1, 2019

Hi All, On behalf of the NumPy team I'm pleased to announce the release of NumPy 1.16.1. This release fixes bugs reported against the 1.16.0 release, and also backports several enhancements from master that seem appropriate for a release series that is the last to support Python 2.7. The supported Python versions are 2.7 and 3.5-3.7. The wheels on PyPI are linked with OpenBLAS v0.3.4+, which should fix the known threading issues found in previous OpenBLAS versions. Downstream developers building this release should use Cython >= 0.29.2 and, if using OpenBLAS, OpenBLAS > v0.3.4. If you are installing using pip, you may encounter a problem with older installed versions of NumPy that pip did not delete becoming mixed with the current version, resulting in an *ImportError*. That problem is particularly common on Debian derived distributions due to a modified pip. The fix is to make sure all previous NumPy versions installed by pip have been removed. See #12736 <https://github.com/numpy/numpy/issues/12736> for discussion of the issue. Note that previously this problem resulted in an *AttributeError*. Wheels for this release can be downloaded from PyPI <https://pypi.org/project/numpy/1.16.1/>, source archives and release notes are available from Github <https://github.com/numpy/numpy/releases/tag/v1.16.1>. *Enhancements* * #12767: ENH: add mm->q floordiv * #12768: ENH: port np.core.overrides to C for speed * #12769: ENH: Add np.ctypeslib.as_ctypes_type(dtype), improve `np.ctypeslib.as_ctypes` * #12773: ENH: add "max difference" messages to np.testing.assert_array_equal... * #12820: ENH: Add mm->qm divmod * #12890: ENH: add _dtype_ctype to namespace for freeze analysis *Contributors* A total of 16 people contributed to this release. People with a "+" by their names contributed a patch for the first time. * Antoine Pitrou * Arcesio Castaneda Medina + * Charles Harris * Chris Markiewicz + * Christoph Gohlke * Christopher J. Markiewicz + * Daniel Hrisca + * EelcoPeacs + * Eric Wieser * Kevin Sheppard * Matti Picus * OBATA Akio + * Ralf Gommers * Sebastian Berg * Stephan Hoyer * Tyler Reddy Cheers, Charles Harris

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