The latest feature release Git v2.20.0 is now available at the usual places. It is comprised of 962 non-merge commits since v2.19.0 (this is by far the largest release in v2.x.x series), contributed by 83 people, 26 of which are new faces.

Also: Git 2.20 Brings Many Fixes, Updates To Windows Port

• Sound on Sound off

  In this article we will create a mechanism to turn the soundtrack of our pygame project on and off whenever we click on the sound on’s or sound off’s icon on the main game page.

• How to automate via Travis CI publishing of new pelican pages to GitHub pages

• Python Qt5 - simple checkbox example.

• Remove the duplicate file from nested folders with python

• Episode #107: Restructuring and searching data, the Python way

• How to Write Your First Node.js App in Linux

• The Case for Data-Driven Open Source Development

  Every year the number of Open Source companies and developer communities continues to grow. Open Source is becoming the de facto standard for software development as companies realize the cost, agility and innovation benefits. In addition to embracing Linux, Microsoft recently open sourced its entire patent portfolio to all member of the Open Invention Network. Companies are not only hiring engineers based on their Open Source Software (OSS) knowledge but also allocating 100 percent of their time to external projects. As a result, these projects quality and feature sets improve significantly which further accelerates their adoption in the enterprise. Very successful Open Source projects such as Kubernetes have helped define best practices for contributions (both technical and non-technical), communication (both online and offline), openness (Summits, Special Interest Groups, etc.) and governance (maintainer-ship, Technical Advisory Board, etc.). No need to reinvent the wheel, there are well-established frameworks for companies to work with.

  There is, however, one major problem that needs to be addressed: the lack of standardized metrics, datasets, methodologies and tools for extracting insights from Open Source projects is real.

• In support of Coraline Ada Ehmke

  Last night, the linux.org DNS was hijacked and redirected to a page that doxed her. Coraline is doing extremely valuable work with the Contributor Covenant code of conduct, which many free software projects have adopted already.

• Focusing on the simple things

  Which I guess shows that I could've spent the time thinking about an interesting concept on more pragmatic things, like testing the surveil script on another machine.

  Finally, I'm looking for a way to do testing; and I'm wondering of a good way to test that the command-line interface functions as expected as well.

• Introducing PySide2 (Qt for Python) Snap Runtime

  Lately at Crossbar.io, we have been PySide2 for an internal project. Last week it reached a milestone and I am now in the process of code cleanup and refactoring as we had to rush quite a few things for that deadline. We also create a snap package for the project, our previous approach was to ship the whole PySide2 runtime (170mb+) with the Snap, it worked but was a slow process, because each new snap build involved downloading PySide2 from PyPI and installing some deb dependencies.

• Quick Tip: SQLAlchemy for MySQL and Pandas

  For years I’ve used the mysql-python library for connecting to mysql databases. It’s worked well for me over the years but there are times when you need speed and/or better connection management that what you get with mysql-python. That’s where SQLAlchemy comes in.

  Before diving into this, if you are doing things that aren’t dependent on speed (e.g., it doesn’t matter if it takes 1 second to connect to the database and grab your data and close the database) then you can easily ignore this tip. That said, if you have multiple connections, that connect time can add up.

  For example, I recently had an issue where it was taking 4.5+ seconds to connect to a database, run analysis and spit out the results. That’s not terrible if its something for you only but if its a production system and speed is a requirement, that might be too long (and it IS too long).

• Mopidy-MPRIS 2.0 released

  I’ve released Mopidy-MPRIS 2.0, the first major update to Mopidy-MPRIS in about 3.5 years.

  Mopidy-MPRIS is a Mopidy extension that makes Mopidy controllable from other programs on the same machine through D-Bus. This makes it possible to control Mopidy from various widgets in GNOME/KDE/etc, as well as with keyboard media keys.

• I'm moving to the Red Hat OpenJDK team

  I'm very excited to announce that I've moved roles within Red Hat: I am now part of the OpenJDK team!

• DataExplore – free Python based data plotting and analysis software

  DataExplore is an open source desktop application for data analysis and plotting intended for use in both research and education. It’s targeted at non-programmers who want to perform fairly advanced table manipulation methods. It also offers fast, dynamic plot creation from selected data suitable for publication. A variety of table analysis tools are provided.

  The software seeks to bridge the gap between graphical interface and command driven or programmatic approaches to data analysis. If you find it daunting to use RStudio, DataExplore might be a perfect fit.

  The software is written in Python and is based on the PyData suite of Python libraries. It works with Python 2.7 and <=3.4. It relies on pandas and matplotlib.

  The program allows quick visualization of data, table manipulation tools and supports large data tables. One advantage is the ability to load and work with relatively large tables as compared to spreadsheets. The focus is on data manipulation rather than data entry though cell editing and row/column changes are supported.

• Automatic continuous development and delivery of a hybrid mobile app

  This makes Node.js an appealing option. Node.js is a JavaScript runtime built on the Chrome V8 JavaScript engine. It can make the API development backend very fast and easy, and it integrates fully with web technologies. You can develop a Cordova plugin, using your Node.js backend, internally in your hybrid app, as I did with the nodejs-cordova-plugin. This plugin, following the Cordova guidelines, integrates a mobile-compatible version of the Node.js platform to provide a full-stack mobile app.

• Test and Code: 56: Being a Guest on a Podcast - Michael Kennedy

• Episode #189: War Stories of the Developer Evangelists

• EuroPython 2019: Venue and location selected

• Create the about scene for pygame project

• Seaborn Library for Data Visualization in Python: Part 2

• Supercell opening new coding school (without teachers or classes)

  Instead, the project has been modelled on pioneering French school École 42. The three-year study program relies on peer-to-peer learning, with students organised into teams and tasked with various projects to demonstrate their skills.

  [...]

  However, the initial applications are only open to those aged between 18 and 30. Given the industry's ongoing battle against ageism, GamesIndustry.biz has reached out to Supercell to see if this will be expanded in future.

• Supercell clashes games skill shortage with free new coding school

  Applications for the program opened this month, with the first 100 successful applicants due to start in September 2019. The course takes a total of three years to complete and is inspired by Paris-based nonprofit school Ecole 42.

• GCC 7 Release Series

  The GNU project and the GCC developers are pleased to announce the release of GCC 7.4.

  This release is a bug-fix release, containing fixes for regressions in GCC 7.3 relative to previous releases of GCC.

• GCC 7.4 Released With 100+ Bug Fixes

  For those still on the GCC7 stable series rather than the current GCC8 series that soon will be succeeded by GCC9, GCC 7.4 is available today.

  With GCC 7.4 being the first GCC7 update since v7.3 from this past January, there are a lot of regression/bug fixes. In fact, GNU Compiler Collection developers report that more than 100 bugs have been fixed in this latest stable point release.