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Friday, 13 Dec 19 - Tux Machines is a community-driven public service/news site which has been around for over a decade and a half and primarily focuses on GNU/LinuxSubscribe now Syndicate content

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Type Title Author Replies Last Postsort icon
Story New OSI President Steps Down srlinuxx 2 05/03/2005 - 5:04am
Story Cronkite denounces the war on drugs. srlinuxx 3 05/03/2005 - 6:07am
Story Texas Gaming Festival: Quick Peek at the LAN Party srlinuxx 06/03/2005 - 3:16pm
Story The Rock solidifies Doom movie role srlinuxx 2 08/03/2005 - 2:29am
Story Bumbling Bully srlinuxx 2 08/03/2005 - 2:30am
Story A Week with KDE 3.4rc1 srlinuxx 5 08/03/2005 - 3:46pm
Story Student in High School zombie terror threat srlinuxx 1 08/03/2005 - 4:00pm
Story European democracy bogus, says Open Source Consortium srlinuxx 2 08/03/2005 - 4:27pm
Story Linux Making Inroads into Automotive Industry srlinuxx 1 08/03/2005 - 4:59pm
Blog entry Cooker (Mandrake 10.2b3) Woes srlinuxx 1 09/03/2005 - 7:08pm

Heroku Review apps available for Treeherder

Filed under
Development
Moz/FF

In bug 1566207 I added support for Heroku Review Apps (link to official docs). This feature allows creating a full Treeherder deployment (backend, frontend and data ingestion pipeline) for a pull request. This gives Treeherder engineers the ability to have their own deployment without having to compete over the Treeherder prototype app (a shared deployment). This is important as the number of engineers and contributors increases.

Once created you get a complete Heroku environment with add-ons and workers configured and the deployment for it.

Looking back, there are few new features that came out of the work, however, Heroku Review apps are not used as widely as I would have hoped for.

Read more

Linux-driven RISC-V core to debut on an NXP i.MX SoC

Filed under
Linux

The OpenHW Group unveiled a Linux-driven “CORE-V Chassis” eval SoC due for tape-out in 2H 2020 based on an NXP i.MX SoC, but featuring its RISC-V-and PULP-based 64-bit, 1.5GHz CV64A CPU and 32-bit CV32E cores. Meanwhile, Think Silicon demonstrated a RISC-V-based NEOX|V GPU.

A not-for-profit, open source RISC-V initiative called the OpenHW Group that launched in June has announced that it plans to tape out a Linux-friendly CORE-V Chassis evaluation SoC in the second half of 2020 built around its 64-bit CV64A CPU core and 32-bit CV32E coprocessor. The RISC-V based cores will be integrated into an undefined, NXP i.MX heterogeneous, multi-core SoC design. The SoC was announced at this week’s RISC-V Summit in San Jose, Calif., where Think Silicon also demo’d an early version of a RISC-V-based NEOX|V GPU (see farther below).

The open source CV64A CPU core and 32-bit CV32E are based on RISC-V architecture PULP Platform cores developed by the University of ETH Zurich. The 64-bit CV64A core is based on ETH Zurich’s Ariane implementation of its RV64GC RISC-V core IP. RV64GC is also used by many other RISC-V projects, including SiFive’s U54.

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today's howtos and leftovers

Filed under
Misc
HowTos

Juju 2.7: Enhanced k8s experience, improved networking and more

Filed under
Ubuntu

Canonical is proud to announce the availability of Juju 2.7. This new release introduces a range of exciting features and several improvements which enhance Juju across various areas.

To learn more about Juju, visit our page.

Kubernetes extensions

Juju is becoming the simplest way to deploy and manage your container-centric workloads. This release was aimed at bringing more Juju features to k8s charms and more k8s features to Juju.

K8s charms can now define actions, introspect agents, and communicate back to Juju via the addition of juju-run within the pod’s PATH environmental variable. Experienced k8s operators will feel more at home with the ability to set secrets, administer service accounts, and other k8s-native features from their charms directly.

Read more

Also: How using Charmed OSM helps telcos to accelerate their NFV transformation

Graphics: NVIDIA 440.44 Linux Driver, Microsoft Code, and WSL Performs Very Poorly

Filed under
Graphics/Benchmarks
  • NVIDIA 440.44 Linux Driver Brings Fixes, __GL_SYNC_DISPLAY_DEVICE Honored With Vulkan

    Out today is NVIDIA 440.44 as the latest stable Linux driver update in their new long-lived driver series. 

    Succeeding the 440.36 and 440.31 stable drivers, the 440.44 release isn't too exciting but at least NVIDIA should be introducing a new beta series shortly. 

  • Intel's OpenSWR OpenGL Software Rasterizer Pulls In Tessellator From Microsoft Direct3D Code

    OpenSWR is Intel's performance-minded software rasterizer for purposes like workstation visualizations and is where it outperforms the likes of LLVMpipe. This CPU-based OpenGL implementation can make use of not only AVX/AVX2 but also AVX-512 and other optimizations to support speedy CPU-based GL operations from laptops to Xeon Scalable hardware. Like LLVMpipe, OpenSWR does leverage LLVM in part. Those unfamiliar with this long-standing Intel open-source project can learn more at OpenSWR.org.

  • Windows Subsystem For Linux Performance At The End Of 2019

    Recently I wrapped up some benchmarks looking at the performance of Ubuntu on Microsoft's Windows Subsystem for Linux comparing WSL on Windows 10 Build 18362 (May 2019 Update) and then both WSL and WSL2 performance using the Windows 10 Build 19008 Insider's Preview (what will come as Windows 10 20H1 update) for looking at where the WSL performance is heading. Additionally, looking at the bare metal performance of Ubuntu 18.04 LTS for which the WSL instances were based plus Ubuntu 19.10. As well, for the Windows-compatible tests also looking at how the Windows performance itself was outside of WSL/WSL2.

Testing IPFire 2.23 - Core Update 139 and Latest Security Patches

Filed under
Security
  • IPFire 2.23 - Core Update 139 is available for testing

    the last Core Update for this decade is finally available for testing! If you have a couple of hours free over the holidays, please help us out by installing it and sending us your feedback!

  • Security updates for Wednesday

    Security updates have been issued by Arch Linux (crypto++ and thunderbird), Debian (cacti, freeimage, git, and jackson-databind), Fedora (nss), openSUSE (clamav, dnsmasq, munge, opencv, permissions, and shadowsocks-libev), Red Hat (nss, nss-softokn, nss-util, rh-maven35-jackson-databind, and thunderbird), Scientific Linux (nss, nss-softokn, nss-util, nss-softokn, and thunderbird), SUSE (caasp-openstack-heat-templates, crowbar-core, crowbar-openstack, crowbar-ui, etcd, flannel, galera-3, mariadb, mariadb-connector-c, openstack-dashboard-theme-SUSE, openstack-heat-templates, openstack-neutron, openstack-nova, openstack-quickstart, patterns-cloud, python-oslo.messaging, python-oslo.utils, python-pysaml2, libssh, and strongswan), and Ubuntu (git, libpcap, libssh, and thunderbird). 

Mozilla and Beyond: Daniel Stenberg on BearSSL, Mozilla Root Store Policy, The Weak Notes, Wladimir Palant on Avira

Filed under
Moz/FF
Security
  • Daniel Stenberg: BearSSL is curl’s 14th TLS backend

    curl supports more TLS libraries than any other software I know of. The current count stops at 14 different ones that can be used to power curl’s TLS-based protocols (HTTPS primarily, but also FTPS, SMTPS, POP3S, IMAPS and so on).

    The beginning

    The very first curl release didn’t have any TLS support, but already in June 1998 we shipped the first version that supported HTTPS. Back in those days the protocol was still really SSL. The library we used then was called SSLeay. (No, I never understood how that’s supposed to be pronounced)

    The SSLeay library became OpenSSL very soon after but the API was brought along so curl supported it from the start.

  • Announcing Version 2.7 of the Mozilla Root Store Policy

    After many months of discussion on the mozilla.dev.security.policy mailing list, our Root Store Policy governing Certificate Authorities (CAs) that are trusted in Mozilla products has been updated. Version 2.7 has an effective date of January 1st, 2020.

  • Week notes - 2019 w49 - worklog - The Weak Notes

    A week with a bad cold makes it more difficult to write week notes. So here my weak notes. Everything seems heavier to type, to push.

    This last week-end I was at JSConf JP. I wrote down some notes about it.

    The week starts with two days of fulltime diagnosis (Monday, Tuesday). Let's get to it: 69 open bugs for Gecko. We try to distribute our work across the team so we are sure that at least someone is on duty for each day of the week. When we have finished our shift, we can add ourselves for more days. That doesn't prevent us for working on bugs the rest of the week. Some of the bugs take longer.

  • Problematic monetization in security products, Avira edition

    A while back we’ve seen how Avast monetizes their users. Today we have a much smaller fish to fry, largely because the Avira’s extensions in question aren’t installed by default and require explicit user action for the additional “protection.” So these have far fewer users, currently 400 thousands on Firefox and slightly above a million on Chrome according to official add-on store numbers. It doesn’t make their functionality any less problematic however.

    That’s especially the case for Avira Browser Safety extension that Avira offers for Firefox and Opera. While the vendor’s homepage lists “Find the best deals on items you’re shopping for” as last feature in the list, the extension description in the add-on stores “forgets” to mention this monetization strategy. I’m not sure why the identical Chrome extension is called “Avira Safe Shopping” but at least here the users get some transparency.

    [...]

    The Avira Browser Safety extension is identical to Avira Safe Shopping and monetizes by offering “best shopping deals” to the users. This functionality is underdocumented, particularly in Avira’s privacy policy. It is also risky however, as Avira chose to implement it in such a way that it will execute JavaScript code from Avira’s servers on arbitrary websites as well as in the context of the extension itself. In theory, this allows Avira or anybody with control of this particular server to target individual users, spy on them or mess with their browsing experience in almost arbitrary ways.

    In addition to that, the security part of the extension is implemented in a suboptimal way and will upload the entire browsing history of the users to Avira’s servers without even removing potentially sensitive data first. Again, Avira’s privacy policy is severely lacking and won’t make any clear statements as to what happens with this data.

RISC-V based PolarFire SoC FPGA and Devkit Coming in Q3 2020

Filed under
Hardware
OSS

Microsemi unveiled PolarFire FPGA + RISC-V SoC about one year ago, but at the time, development was done on a $3,000 platform with SiFive U54 powered HiFive Unleashed board combined with an FPGA...

Read more

News From Python Programmers

Filed under
Development
  • Data Engineer Interview Questions With Python

    Going to interviews can be a time-consuming and tiring process, and technical interviews can be even more stressful! This tutorial is aimed to prepare you for some common questions you’ll encounter during your data engineer interview. You’ll learn how to answer questions about databases, Python, and SQL.

  • 8 AI Predictions for 2020: Business Leaders & Researchers Weigh In

    The first industrial revolution was powered by coal, the second by oil and gas, and the third by nuclear power. The fourth — AI — is fueled by an abundance of data and breakthroughs in compute power. While this abundance has allowed us to make significant progress in recent years, there is still much to be done for AI to be the positive life-changing force that many hope it will be. We asked thought leaders at the forefront of AI and machine learning technology to contribute some insight into what they think will transpire in 2020. Their predictions center around hardware, the human impact of AI, the public’s understanding of AI, and its limitations.

  • The easiest way to deploy Django application

    Heroku is a cloud application platform, it facilitate the deployement of a web application.

    They support several programming languages, include Python.

  • Encoding and Decoding Base64 Strings in Python

    Have you ever received a PDF or an image file from someone via email, only to see strange characters when you open it? This can happen if your email server was only designed to handle text data. Files with binary data, bytes that represent non-text information like images, can be easily corrupted when being transferred and processed to text-only systems.

    Base64 encoding allows us to convert bytes containing binary or text data to ASCII characters. By encoding our data, we improve the chances of it being processed correctly by various systems.

    In this tutorial, we would learn how Base64 encoding and decoding works, and how it can be used. We will then use Python to Base64 encode and decode both text and binary data.

Red Hat and IBM Leftovers

Filed under
Red Hat
  • MicroProfile 3.2 is now available on Open Liberty in Red Hat Runtimes

    Open Liberty 19.0.0.12 provides support for MicroProfile 3.2, allowing users to provide their own health check procedures and monitor microservice applications easily with metrics. Additionally, updates allow trust to be established using the JDK’s default truststore or a certificate through an environment variable.

    [...]

    Open Liberty has added support for Jaeger in MicroProfile OpenTracing. A sample tracer is available for using Zipkin as a tracing backend. With the addition of Jaeger support, developers can also use Jaeger as a tracing backend.

  • Working with Linux containers on RHEL 8 with Podman, image builder and web console

    Podman was released with Red Hat Enterprise Linux 7.6 and 8.0 as the next generation of Linux container tools, is designed to allow faster experimentation and development of features.

    Podman features include rootless, kube generate, and kube play (see: "Podman can now ease the transition to Kubernetes and CRI-O"). Podman is also compatible with the Open Containers Initiative (OCI), Runtime, Image, and Distribution specifications, so customers can build container images that run on OpenShift (which uses CRI-O) or other 3rd-party OCI compliant container engines, and vice versa.

    As can be seen in Figure 1, CRI-O, in Red Hat OpenShift, shares many of its underlying components with Podman. This allows Red Hat engineers to leverage knowledge gained in experiments conducted in Podman for new capabilities in OpenShift.

  • Red Hat Software Collections 3.4, Red Hat Developer Toolset 9 now generally available

    Building the next generation of enterprise applications requires the latest and greatest developer tools paired with production-grade stability. To help meet these twin needs, we’re pleased to deliver the latest version of Red Hat’s curated collection of the latest open source runtime languages, databases, compilers and related developer tools: Red Hat Software Collections 3.4.

  • Celebrating 20 years of enterprise Java: Innovation

    Twenty years ago this week, enterprise Java was born. The Java 2 Platform, Enterprise Edition (J2EE) launched as version 1.2 on Dec. 12, 1999. It built upon many years of work previously in the enterprise distributed systems arena, such as the common object request broker architecture (CORBA) and distributed computing environment (DCE), and its birth marked the beginning of a technology that would become a powerhouse in the world of enterprise application development.

    Building on the "write once, run anywhere" promise of the Java programming language, the enterprise Java platform extends this neutrality and portability with a set of specifications that are well-suited for building large scale applications. As a result, enterprise Java has been able to offer an appealing option for developers that enables them to take advantage of the reliability, speed, efficiency and ease-of-use needed for enterprise-grade development.

  • Keycloak: Core concepts of open source identity and access management

    Keycloak provides the flexibility to export and import configurations easily, using a single view to manage everything. Together, these technologies let you integrate front-end, mobile, and monolithic applications into a microservice architecture. In this article, we discuss the core concepts and features of Keycloak and its application integration mechanisms. You will find links to implementation details near the end.

  • What 5 new innovations will open source yield in the 2020s?

    When I look back to where technology was in 2010, it’s astounding to think about how much has changed — and how so many of those advancements were fueled by open source.

    Ten years ago, AI was not a part of our everyday lives, most developers hadn’t even heard of containers or microservices, blockchain was little more than an idea, and serverless was a far-off dream. Now these technologies, built on open source projects and the communities that surround them, are shaping how developers do their jobs and how people interact with technology on a daily basis.

    In this blog post, I talk about some of the trends that have shaped the past decade as we look forward to what 2020 — and the next decade — has in store for us.

  • Open and Innovative: others don’t have a patch on SUSE

    It’s not just general purpose and large x86_64 systems that feel the benefit of fixing vulnerable systems without waiting for a planned maintenance window. We see so many customers in the SUSE world that run critical applications or large database instances on IBM POWER. In many cases these systems do not have the same levels of flexibility built into general purpose systems, and so every minute of downtime hurts.
    SUSE Linux Enterprise Live Patching has supported live patching on the POWER systems for almost 2 years now. This is just another example of SUSE always listening to the user community and delivering to them what the users really need and when they need. Customers know and depend on SUSE to be the first to deliver the right technology at the right time.

Audiocasts/Shows: Talk Python to Me, Art With Free Software and mintCast on Linux Mint

Filed under
Development
GNU
Linux
  • Talk Python to Me: Episode #242: Your education will be live-streamed

    Online education has certainly gone mainstream. Developers and companies have finally gotten comfortable taking online courses. Sometimes these are recorded, self-paced courses like we have at Talk Python Training. Other times, they are more like live events in webcast format.

    In this episode, you'll meet two guys who are taking the interactivity of online learning up a notch. Brian Clark and Cecil Philip run a weekly event on Twitch where they are live-streaming an interactive Python course. They take questions from 100's of students and dig into the diversions more mainstream online learning simply cannot.

  • [Krita artist] Production report: episode 31

    Slowly but surely and in the background of the book-publishing project I've been working on a future episode of Pepper&Carrot. Here is a report about that with many screenshots:

  • mintCast 323.5 – Traveling Networker Problem

    In our Innards section, we talk more about Linux Mint and Clem’s comments.

Fedora 31 Workstation review - The color of winter

Filed under
Red Hat
Reviews

Last week, we talked about MX Linux MX-19. This week, let's have a look at Fedora 31. Now, some of you may already start grumbling and complaining. Because I will focus a lot of my energy on the Gnome desktop and what it doesn't do, and all that. But then, Fedora is the pioneer child (not in the communist sense) of the Gnome world, showcasing the latest fixes and features the environment offers. Therein lies my hope and my expected but hopefully proven wrong disappointment.

Looking back to the past two years or so, I found Fedora to have improved a little in the performance area, has become more consistent, gained stability in major areas side by side with bugs and problems in others, and still isn't user-friendly enough for immediate consumption. Y'know, proprietary stuff, window buttons, desktop icons, stuff like that. Fedora 30 is a good melting pot of all these observations. I wasn't happy, but then, it's time to rewind the clock, reset my emotions, and boldly charge head first into the wall of open-source.

Read more

Games: Hellpoint, Wasteland 2 Director's Cut, Bite the Bullet, Steam Play Proton

Filed under
Gaming
  • Hellpoint, the dark sci-fi action RPG from Cradle Games now launching in 2020 with new details

    Cradle Games recently put out some fresh exciting details for Hellpoint, their upcoming crowdfunded dark sci-fi action RPG.

    Firstly, it seems the release has been pushed back a while. They were aiming for this year but they're just not going to hit it. They've been going through console certification, along with doing regular updates to the PC Beta and they're now saying it's going to be sometime in "Q1 2020" for Hellpoint's release.

  • Get Wasteland 2 Director's Cut FREE in the GOG Winter Sale, lots of Linux games going cheaps

    Is there seriously another big sale going on already? Yep! This time it comes with a FREE game too. GOG are offering Wasteland 2 Director's Cut at no cost.

    Firstly then, the Wasteland 2 Director's Cut Digital Classic Edition going FREE on GOG which also comes with Wasteland 1: The Original Classic so you're getting two games for nothing here. That should keep you busy enough through the colder Winter nights.

  • Action-RPG platform shooter Bite the Bullet is going to have some really crazy weapons

    Mega Cat Studios previously showed how eating enemies in Bite the Bullet would power you up, now they're talking about the varied weapons you get to play with.

    As a huge fan of Broforce and other such crazy action platformers, Bite the Bullet is high up on my list of games coming out next year. We shouldn't be waiting too long on it, with it due in the first quarter of 2020. To show it off a little more, Mega Cat Studios have a new video talking about all the weapons and some of them are pretty crazy.

  • Another Steam Beta is out, updates the Linux Runtime to help Steam Play Proton

    Quite a small update to the Steam Beta recently, but for some Linux gamers using Steam Play Proton it might be a rather helpful one.

    The new Library got tweaked a little again, now allowing for Family Sharing of tools, Valve also fixed new categories created in small mode or Big Picture mode not being properly saved when switching to normal mode and recently played but disallowed by Family View games not appearing in the Recent Games shelf when Family View is enabled on startup.

Debian: ElkArte, LTS and riscv64 Port

Filed under
Debian
  • How to Install ElkArte Forum with Apache and Let's Encrypt on Debian 10

    ElkArte is a free, open-source and powerful forum software that allows you to create your own online forum community. In this tutorial, we will explain how to install ElkArte on Debian 10 server.

  • My Free Software Activities in November 2019

    Welcome to gambaru.de. Here is my monthly report that covers what I have been doing for Debian. If you’re interested in Java, Games and LTS topics, this might be interesting for you.

  • Debian GNU/Linux riscv64 port -- Sponsors and Build machines

    In previous posts about the riscv64 port there were mentions about history, progress and other details, but in this one I want to address the topic of sponsors and build machines, which even if there are mentions from time to time (e.g. in talks and slides posted here), it has not been covered in a comprehensive manner.

    And it's only fair that we acknowledge people and orgs sponsoring and contributing resources... and about time too. They will appear roughly in chronological order.

15 Useful Firefox Keyboard Shortcuts You Should Know

Filed under
Moz/FF
OSS

Firefox is one of the most popular free and open-source browsers for Linux users. Even though you have a lot of open source chrome alternatives, Firefox still is one of the best choices to go with.

And you don’t even need to install Firefox on Ubuntu or most other distributions because it is installed by default.

What if you can make your browsing experience on Firefox even better by using some keyboard shortcuts?

Hold on, of course, not everyone prefers to use keyboard shortcuts. But, if you’re comfortable with that and want to do perform tasks in a jiffy, you should know some of the most common Firefox keyboard shortcuts.

It is also worth noting that you could use some of these shortcuts on Chrome/Chromium as well- however, we already have a list of useful Google Chrome shortcuts to help you out. So, if you’re using Chrome/Chromium, I insist you check out that article.

Read more

Android Document Scanning and Developer-Focused TV Box

Filed under
Android
  • The 15 Best Document Scanner Apps for Android Devices in 2020

    It doesn’t matter whether you are an Office job holder, a businessman, or a student; you will face a situation where scanning some papers or documents seem to be essential. But finding a scanner is tough in many places nowadays. You can deal with such a problem if you have installed any document scanner apps on your Android device. In PlayStore, some scanner apps can turn your mobile phone into a tiny scanner. So, just by installing a useful document scanner App, you can scan notes and documents anytime, anywhere.

  • Google ADT-3 is a Developer-Focused TV Box for Android TV on Android 10

    Back in 2014, Google killed Google TV and announced Android TV, and as a result, introduced ADT-1, the first developer kit specifically designed for Android TV.

Improving the security model of the LVFS

Filed under
Linux
Security

There are lots of layers of security in the LVFS and fwupd design, including restricted account modes, 2FA, and server side AppStream namespaces. The most powerful one is the so-called vendor-id that the vendors cannot assign themselves, and is assigned by me when creating the vendor account on the LVFS. The way this works is that all firmware from the vendor is tagged with a vendor-id string like USB:0x056A which in this case matches the USB consortium vendor assigned ID. Client side, the vendor-id from the signed metadata is checked against the physical device and the firmware is updated only if the ID matches. This ensures that malicious or careless users on the LVFS can never ship firmware updates for other vendors hardware. About 90% of the vendors on the LVFS are locked down with this mechanism.

Some vendors have to have IDs that they don’t actually own, a good example here is for a DFU device like the 8bitdo controllers. In runtime mode they use the USB-assigned 8bitdo VID, but in bootloader mode they use a generic VID which is assigned to the chip supplier as they are using the reference bootloader. This is obviously fine, and both vendor IDs are assigned to 8bitdo on the LVFS for this reason. Another example is where Lenovo is responsible for updating Lenovo-specific NVMe firmware, but where the NVMe vendor isn’t always Lenovo’s PCI ID.

Read more

Programming: Vim, Qt Shader and Python

Filed under
Development
  • Vim Text Editor for Beginners Part 1 - Introduction

    In my newly refreshed Vim series, you'll learn all the things you'll need to know in order to use this text editor in your daily workflow. In this first video, we'll get Vim installed take an initial look.

  • Vim Text Editor for Beginners Part 2 - Combining Files

    In my newly refreshed Vim series, you'll learn all the things you'll need to know in order to use this text editor in your daily workflow.

  • Qt Shader Tools Looks To Become Official Qt6 Module

    The currently-experimental Qt Shader Tools allows for graphics/compute shader conditioning and used by the in-development Qt graphics abstraction layer for supporting Vulkan / Metal / Direct3D / OpenGL APIs.

    Qt Shader Tools offers various shader features in preparing them for consumption by different graphics APIs. Qt Shader Tools is currently used ahead of time for QtGUI with Qt 5.14+. But for Qt 6.0, Qt Shader Tools is going through the appropriate steps for becoming a formal Qt 6 module for compiling and translating shaders between interfaces.

  • Python Positional-only parameters

    I have downloaded Python 3.8 and start to play around with those latest python functions. In this article, we will look at the Positional-only parameter syntax which is a function parameter syntax / to indicate that some function parameters must be specified positionally and cannot be used as keyword arguments which means after the / syntax we may specify a value for each parameter within that function.

  • For Loop in Python Explained With Practical Examples

    If you are just getting started to learn Python, you must be in search of something to explore for loop in Python.

    Of course, our list of free python resources should help you learn about it quickly.

    In either case, we shall help you learn more about the ‘for‘ loop in python using a couple of important examples.

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More in Tux Machines

Wine 5.0's first release candidate

  • Wine Announcement
    The Wine development release 5.0-rc1 is now available.
    
    This is the first release candidate for the upcoming Wine 5.0. It
    marks the beginning of the yearly code freeze period. Please give this
    release a good testing to help us make 5.0 as good as possible.
    
    What's new in this release (see below for details):
      - Gecko update, with support for running from a global location.
      - Unicode data updated to Unicode version 12.1.
      - Initial version of the MSADO (ActiveX Data Objects) library.
      - Update installation support in the WUSA (Windows Update Standalone) tool.
      - More progress on the kernel32/kernelbase restructuring.
      - Support for signing with ECDSA keys.
      - Various bug fixes.
    
    The source is available from the following locations:
    
      https://dl.winehq.org/wine/source/5.0/wine-5.0-rc1.tar.xz
      http://mirrors.ibiblio.org/wine/source/5.0/wine-5.0-rc1.tar.xz
    
    Binary packages for various distributions will be available from:
    
      https://www.winehq.org/download
    
    You will find documentation on https://www.winehq.org/documentation
    
    You can also get the current source directly from the git
    repository. Check https://www.winehq.org/git for details.
    
    Wine is available thanks to the work of many people. See the file
    AUTHORS in the distribution for the complete list.
    
    
  • Wine 5.0-RC1 Released With Unicode 12.1 Support, Initial ActiveX Data Objects Library

    Making it into Wine 5.0-rc1 is an updated Mozilla Gecko revision, Unicode 12.1 support, an initial MSADO ActiveX Data Objects library implementation, updating the installation support within the WUSA (Windows Update Standalone_ utility, continued Kernel32/Kernelbase restructuring, support for signing with ECDSA keys, and the usual variety of bug fixes.

Pi for Everyone and Everything

Pi foundation released their first system-on-a-chip (SOC) in 2012, they had no idea how overwhelming the response would be. The credit-card-sized computer once meant to be an easy entry point for British students to get into programming and computer science has burgeoned into a whole community of add-on boards (“hats”), screens and extras that people all around the world are using for all kinds of things. Raspberry Pi computers have ARM processors on them and most Linux distributions that support those processors will run on them. There are also Windows 10 IOT (Internet of Things) embedded platforms that will run on them as well. The most popular operating system for it by far is Raspbian, which is a derivative of Debian Linux. The Raspberry Pi foundation also has an OS image called NOOBS, which will allow you to install a number of different options on it as well. Getting started is as easy as buying a Pi, a case and its accompanying necessities, which you might already own, namely a microSD card, a 5V-2A wall-wart-type supply with a micro USB connection, an HDMI cable and a USB keyboard and mouse. Several starter kits are available that include cases, power supplies and NOOBS already installed on a microSD card. If you already have access to a microSD card, it is simple enough to go to www.raspberrypi.org and download any of the OS images that they have there. There are also details on how to get the image onto the card. Read more

Fedora Deciding Whether CD/DVD Installation Issues Should Still Hold Up Releases

Fedora will continue producing ISO images of their distribution that can be installed to a DVD (or CD in the case of some lightweight spins) or more commonly these days copied to USB flash drives, but they are debating whether any CD/DVD optical media issues should still be considered blocker bugs in 2020 and beyond. Fedora optical media and any issues pertaining to that would be considered non-blocking for Fedora releases. This reflects the fact a majority of Linux users these days are copying their Linux distributions to USB flash drives and installing from there rather than still burning CDs/DVDs. Particularly with many computers these days lacking CD/DVD drives, not having to worry about optical install issues as blocker bugs would free up resources to deal with more pressing bugs around release time. Read more

today's leftovers

  • AMDVLK 2019.Q4.4 Released With Navi 14 Fixes, DoW 3 Perf Optimization

    As anticipated, AMD has now formally released a new version of their AMDVLK open-source Vulkan driver following this week's Radeon Software Adrenalin 2020 Windows driver release. The changes end up being what I was alluding to yesterday with VK_EXT_pipeline_creation_feedback support, subgroup cluster support, a performance optimization for the Dawn of War 3 game, CTS failure fixes for Navi 14, and other fixes.

  • Dominique Leuenberger: openSUSE Tumbleweed – Review of the week 2019/50

    Another week has passed – and we’re almost at the end of the year. During the last week we have released 4 snapshots for Tumbleweed (1206, 1207, 1210 and 1211) containing those noteworthy changes: gpg 2.2.18 libvirt 5.10.0 linux-glibc-devel 5.4 Mozilla Thunderbird 68.3.0 bluez 5.52 libxml 2.9.10 createrepo_c 0.15.4: beware: it is very strict and blocks any snapshot if there is a package with non-UTF8 chars or ASCII < 32 (except 9, 10 and 13) in a changelog. Double check your .changes files before submitting. GNOME 3.34.2 KDE Plasma 5.17.4

  • Why you need to know about Seeed hardware devices

    The microcontroller craze doesn't seem to be dying down—and that's a good thing because these products consistently succeed where the mobile market consistently fails: Users get open software and hardware, a portable form factor, and a wide choice of vendors and products that are built to last. Among the best of the open hardware and software vendors is Seeed, the self-proclaimed "IoT Hardware Enabler." I recently started seeing the Seeed logo on projects, so I contacted the company to learn about the interesting things they're doing. In response, they generously sent me one of their latest products: the Seeeduino Nano, a compact board that the company says is fully compatible with the Arduino Nano but at half the price and a quarter the size, along with a sample sensor to get me started. I spent a few days with it, and I'm already working on a project to improve my home garden and thinking of several others for home automation. Far from just another Arduino-like product, the Seeeduino Nano solves several problems new makers face when they get a microcontroller and want to use it.

  • Marco Zehe: A quick introduction to using Gutenberg

    Late in November, I published a personal opinion on the state of Gutenberg accessibility. Today, I’d like to give an introduction to Gutenberg from a screen reader user perspective. Gutenberg, the WordPress block editor, is the new way to create content and build sites in WordPress. It is a rich web application that uses many modern techniques such as dynamic updates, toolbars, side bars and other items to completely update the posting experience. It can also be quite daunting at first. Let us try to shed a little light on some of the mysteries around it.

  • Pitfalls for OMEMO Implementations – Part 1: Inactive Devices

    Smack’s OMEMO implementation received a security audit a while ago (huge thanks to the Guardian Project for providing the funding!). Radically Open Security, a non-profit pentesting group from the Netherlands focused on free software and ethical hacking went through the code in great detail to check its correctness and to search for any vulnerabilities. In the end they made some findings, although I wouldn’t consider them catastrophically bad (full disclosure – its my code, so I might be biased :D). In this post I want to go over two of the finding and discuss, what went wrong and how the issue was fixed.

  • Support FSF's copyleft and licensing work

    We launched our annual fundraiser with the goal of welcoming 600 new associate members before December 31st. New members are critical to the cause, and by becoming a member you will stand in solidarity with others who care about computer user freedom. As is the case with any social movement, the numbers matter, and it is a very powerful gesture to make for only $10 a month ($5 if you are a student). Please support the work that gives hope for a future with software freedom: make a donation or – better yet -- join us and become a member today. The Free Software Foundation is a global leader for copyleft, and the licensing team plays a vital role in disseminating useful knowledge about free software while working to protect it. We accomplish this in part by answering licensing questions from the public and by providing resources like our list of free software licenses. We also increase access to software freedom by managing the Respects Your Freedom certification program, and cataloging free software through our endorsed distributions program and the Free Software Directory. To protect free software, we handle license compliance for the GNU Project, resulting in a stronger community and more respect for the power of copyleft. We are proud to accomplish this as just two staff working with our executive director, board, and legal counsel. These resources combined make a potent force for software freedom, and your support will ensure our work continues with the aim to do an even better job in 2020. Let us share a bit about the work we did in 2019 and elaborate on why it is so vital that this work continues.

  • OpenJS Foundation Welcomes Electron As Its New Incubating Project [Ed: OpenJS is run by people from Microsoft]

    Initially developed by GitHub in 2013, today the framework is maintained by a number of developers and organization

  • Twitter Is Funding Effort To Create A 'Decentralized Standard?'For Social Media

    The project is called Bluesky and eventually, it should enable Twitter to "access and contribute to a much larger corpus of public conversation," pushing it to be far more innovative than in the past.