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Programming/Development Leftovers

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Development
  • Python Community Interview With Marlene Mhangami

    We are joined today by Marlene Mhangami. Marlene is a passionate Pythonista who is not only using tech to facilitate social change and empower Zimbabwean women but is also the chair of the very first PyCon Africa. Join me as we talk about her non-traditional start in tech, as well as her passion for using technology to create social change for good.

  • PyDev of the Week: Meredydd Luff

    This week we welcome Meredydd Luff (@meredydd) as our PyDev of the Week! Meredydd is the co-founder of Anvil and a core developer for the Skulpt package.

  • New Style Signal/Slot Connection

    Yes, I know. The last post on the assistants is rather boring. And yet these days I have been working on the snapshot docker, though it still seems a little (just a little, you see) unfinished as Dmitry is said to experience a relatively high delay when switching between snapshots. However this is not what I can reproduce on my older laptop, so I am really waiting for his test results in order to further investigate the problem.

    But there is something interesting happening just when I am randomly testing things. From Krita’s debug output, I saw QObject::connect() complaining about the arguments I passed, saying it is expecting parenthesis. “Okay,” I thought, “then there have to be something wrong with the code I wrote.” And that was quite confusing. I remember having used member function pointers in those places, got a compile-time error since KisSignalAutoConnectionsStore did not support the new syntax, then switched back to the SINGAL() and SLOT() macros. KisSignalAutoConnectionsStore is a helper class to quickly (dis)connect a group of connections. One can use the addConnection() method to add a connection, and use clear() to remove all connections made before.

    Well, everything good, apart from the fact that I missed the parenthesis, which I did not discover until I looked into the debug output. So I asked Dmitry why not add the new syntax to KisSignalAutoConnectionsStore, and he said we should.

  • Arm Developer Provides More Glibc Optimizations - Memem & Strstr

    Arm's Wilco Dijkstra landed some more optimizations this past week in the Glibc development code for the upcoming GNU C Library 2.30 release. 

    Memmem is now faster on AArch64 by up to 6.6x times thanks to implementing a modified Horspool algorithm. 

  • Learn PyQt: Gradient

    This custom PyQt5/PySide2-compatible widget provides a gradient designer providing a handy interface to design linear gradients in your applications. A new gradient can be created simply by creating an instance of the object.

    gradient = Gradient()
    The default gradient is black to white. The stop points are marked by a red box with a white line drawn vertically through it so they are visible on any gradient.

  • Building Apache Kafka Streams applications using Red Hat AMQ Streams: Part 1
  • What's your favorite "dead" language?
  • Which Is A Better Programming Language For Data Science? Python Or R
  • Introduction to OpenCV with Python
  • AI Paris 2019 in one picture
  • 5 transferable higher-education skills

    As a developer jumping head-first into technology after years of walking students through the process of navigating higher education, imposter syndrome has been a constant fear since moving into technology. However, I have been able to take heart in knowing my experience as an educator and an administrator has not gone in vain. If you are like me, be encouraged in knowing that these transferable skills, some of which fall into the soft-skills and other categories, will continue to benefit you as a developer and a professional.

More in Tux Machines

Devices With Linux Support

  • Quest Releases KACE SDA & SMA Updates

    The update to 7.0 for KACE Systems Deployment Appliance is primarily about bringing a scope of endpoint management capabilities with new support for Linux devices to the table.

  • Rugged, Kaby Lake transport computer has a 10-port LAN switch with PoE

    Axiomtek’s Linux-ready “tBOX400-510-FL” transportation system has a 7th Gen Intel CPU and a 10-port managed switch with 8x M12-style 10/100Mbps PoE and 2x GbE ports. The rugged system also has 3x mini-PCIe slots and dual swappable SATA drives. Axiomtek has launched a fanless, Kaby Lake-U based transportation computer with a choice of power supplies designed for in-vehicle, marine, or railway applications. The rugged tBOX400-510-FL features a Qualcomm-driven, Layer 2 managed PoE switch with support for IP surveillance and video management applications. “Customers can connect IP cameras directly without installing an extra PoE switch, minimizing overall deployment costs and installation space onboard,” stated Axiomtek product manager Sharon Huang.

Software: Open Build Service (OBS) and Spotify 'App'

  • Introducing Open Build Service, Version 2.10

    We are pleased to announce the availability of Open Build Service (OBS) version 2.10! After more than one year of development, this new version of OBS brings a revamped web user interface, improved support for shipping your software in containers and integrating your package builds with source code management systems like GitLab and Pagure.

  • Spotify’s Snap App Was Outdated, But Now It Isn’t

    I’ll be honest: when Spotify arrived on the Snap store I thought: “hurrah”. Hurrah for an easier way to install the music streaming client (no need to futz around adding the Spotify repository like in the past) and hurrah for automatic background updates that ensure I’m always running the latest release. At least, that was the theory. Alas, the official Spotify for Linux Snap package has not been updated since April of this year. “Oh,” I thought, “I guess there hasn’t been an update to the Spotify Linux desktop client since then!” But there has — several updates, in fact!

KDE: Sponsorship, GSoC and KDE Connect

  • Couture Becomes a KDE Patron

    enioka Haute Couture is a software development house that creates complete and tailor-made solutions. enioka strives to return ownership of the software development and innovation to its customers. To that effect, it co-creates the software with its customers' teams to allow them to retain control of their projects in complex systems or organizations. "We are excited to welcome enioka Haute Couture as a Patron of KDE. They truly understand what it means to empower people when creating software; something KDE cares deeply about", said Lydia Pintscher, President of KDE e.V.

  • GSoC Milestone Update 1.1

    The second part of Milestone 1 for my Google Summer of Code 2019’s project porting KDE Connect to Windows involves enabling the SFTP plugin that ships in the linux build. The plugin allows you to navigate through your mobile device’s files (like you do with a file manager) ON YOUR DESKTOP! It makes use of sshfs to allow mounting the remote file system on your desktop. After that, you can use any file manager you like; heck, you can even use your terminal to have a walk through your mobile’s files. Once that is done, you can do literally anything with the mobile device’s files as you would do with the local filesystem: move files, copy them to your desktop machine, delete them, rename, anything!

  • KDE Connect sprint 2019

    From friday the 19th to sunday the 21st, we had the KDE Connect sprint. It's always a nice opportunity to meet the others working on KDE Connect, since we usually only talk to each other online.

  • KDE Connect is Being Ported to Windows 10

    Google Summer of Code 2019 is proving to be a bumper one for KDE Connect, the open source Android-to-PC integration suite. Last week we reported on the progress made by a GSoC student on KDE Connect for Mac. This week we bring word on a new KDE Connect Windows port. “Wait, isn’t KDE Connect already available for Windows?”, you might (rightly) ask — and the answer is yes, kind of!

Security Leftovers

  • Security updates for Monday

    Security updates have been issued by Debian (bind9, exiv2, kernel, nss, openjdk-11, openjdk-8, patch, and squid3), Fedora (gvfs, libldb, and samba), Mageia (firefox, gvfs, libreswan, rdesktop, and thunderbird), openSUSE (bzip2, clementine, dbus-1, expat, fence-agents, firefox, glib2, kernel, kernel-firmware, ledger, libqb, libu2f-host, pam_u2f, libvirt, neovim, php7, postgresql10, python-requests, python-Twisted, ruby-bundled-gems-rpmhelper, ruby2.5, samba, webkit2gtk3, zeromq, and znc), Red Hat (java-1.8.0-openjdk, java-11-openjdk, rh-maven35-jackson-databind, rh-nodejs8-nodejs, and rh-redis5-redis), Slackware (kernel), and SUSE (ucode-intel).

  • VLC Player hit by buffer overflow vulnerability

    A security researcher has warned of a serious vulnerability in VideoLAN's VLC Player (VLC), a popular media playback tool, for which no patch is yet available.

  • Critical flaw in VLC Player affecs Linux, Windows and UNIX apps

    GERMAN SECURITY AGENCY CERT-Bund has uncovered a critical flaw n VLC Media Player that could enable hackers to access and modify data on devices.