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Programming: Python, GNU C Library, DataCamp Backlash and Tryton

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Development
  • Check type annotations in Python with mypy

    Python is one of the most popular programming languages in use today—and for good reasons: it's open source, it has a wide range of uses (such as web programming, business applications, games, scientific programming, and much more), and it has a vibrant and dedicated community supporting it. This community is the reason we have such a large, diverse range of software packages available in the Python Package Index (PyPI) to extend and improve Python and solve the inevitable glitches that crop up.

    In this series, we've looked at seven PyPI libraries that can help you solve common Python problems. Today, in the final article, we'll look at mypy "a Python linter on steroids."

  • Hacking The Government With The USDS

    The U.S. government has a vast quantity of software projects across the various agencies, and many of them would benefit from a modern approach to development and deployment. The U.S. Digital Services Agency has been tasked with making that happen. In this episode the current director of engineering for the USDS, David Holmes, explains how the agency operates, how they are using Python in their efforts to provide the greatest good to the largest number of people, and why you might want to get involved. Even if you don't live in the U.S.A. this conversation is worth listening to so you can see an interesting model of how to improve government services for everyone.

  • Cavium ThunderX2 getting significant performance boost as glibc optimizations inbound

    Optimizations are coming to the GNU C Library (glibc) for Cavium's ThunderX2 Arm-powered server CPU, as a recent commit changes the behavior of MEMMOVE in glibc 2.30, expected for release around the start of August. The commit, according to Cavium developer Steve Ellcey, provides improvements of "about 20-30% for larger cases and about 1-5% for smaller cases," and uses "SIMD load/store instead of GPR for large overlapping forward moves."

    Differences in how SIMD (Single Instruction, Multiple Data) instructions are handled between Intel and Arm architectures—where the instruction type is called NEON—have been a primary pain point to adopting Arm-powered processors for servers. Cloudflare, which uses (now discontinued) Qualcomm Centriq servers, has worked on optimizing open-source applications in its technology stack for Arm architectures, and has published its results (and code) publicly.

  • Solving problems with virtualenvwrapper using mismatched python versions
  • Updated Statement About Our Relationship with DataCamp

    We apologize for our poor communications about our response to the DataCamp sexual misconduct incident. We support the victims and we understand this has been a painful and ongoing struggle for them. We also recognize that for underrepresented groups, experiences of harassment and discrimination are far too common.

    We deeply regret that we did not provide enough context in our communications, and that our word choice contributed to confusion about our position. We want to correct that now.

  • Tryton Release 5.2

    We are proud to announce the 5.2 release of Tryton. This is the first minor release which means that it will be supported for 1 year only.

    As usual the migration from previous series is fully supported. Some manual operation may be required, see Migration from 5.0 to 5.2.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.