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Linux and Python Development

Submitted by Roy Schestowitz on Thursday 11th of April 2019 04:22:02 AM Filed under
Development
  • nbdkit 1.12

    The new stable release of nbdkit, our flexible Network Block Device server, is out. You can read the announcement and release notes here.

    The big new features are SSH support, the linuxdisk plugin, writing plugins in Rust, and extents. Extents allows NBD clients to work out which parts of a disk are sparse or zeroes and skip reading them. It was hellishly difficult to write because of the number of obscure corner cases.

  • Silver Platter

    Making changes across the open source ecosystem is very hard; software is hosted on different platforms and in many different version control repositories. Not being able to make bulk changes slows down the rate of progress. For example, instead of being able to actively run a a script that strips out an obsolete header file (say "DM-Upload-Allowed") across all Debian packages, we make the linter warn about the deprecated header and wait as all developers manually remove the deprecated header.

  • Confessions of a Recovering Proprietary Programmer, Part XVI

    I build quite a few Linux kernels, mostly in support of my deep and abiding rcutorture habit. These builds can take some time, even on modern laptops, but they are nevertheless amazingly fast compared to the build times of the much smaller projects I worked on in decades past. Additionally, build times are way down in the noise when I am doing multi-hour rcutorture runs. So much so that I don't bother with cut-down kernel configurations, especially given that cut-down configurations are an excellent way to fail to spot subtle RCU API problems.

    Still, faster builds do have their advantages, especially when doing a series of short tests, such as when chasing down that rarest of creatures, an RCU bug that reproduces reliably within a few minutes of boot. Which is exactly what I was doing yesterday. And during that time, a five-minute kernel build time was much more annoying than it normally would be.

  • I'm stepping down as maintainer of auditwheel

    For the last three years I've been a regular contributor and core maintainer of auditwheel, a Python Packaging Authority (or "PyPA") tool used to build portable binary/extension wheels on Linux. auditwheel's "show" command allows developers to check if their Python wheel's external symbol dependencies comply with the manylinux policies, and its "repair" command enables developers to more easily build policy-compliant wheels inside an appropriate environment like a manylinux Docker image without having to make significant changes to their build processes.

    Most recently, at the last Python Packaging Authority sprints in November 2018, I finished work to support the manylinux2010 platform tag in auditwheel. After extensive testing, this functionality was released in version 2.0 in January of 2019.

  • PyCharm Hosts Python Creators at Expanded PyCon Booth

    Want to meet key podcasters, authors, and teachers at PyCon? This year PyCharm has an expanded booth with space shared by many of the key “Python Creators.” Come say hi, watch short talks by them, us, and others in our mini-theater, or schedule one-on-one slots in our seating area.

    We have lots more to announce on this in the coming weeks, but let’s lead with a quick overview.

  • How to Create an Index in Django Without Downtime

    Managing database migrations is a great challenge in any software project. Luckily, as of version 1.7, Django comes with a built-in migration framework. The framework is very powerful and useful in managing change in databases. But the flexibility provided by the framework required some compromises. To understand the limitations of Django migrations, you are going to tackle a well known problem: creating an index in Django with no downtime.

»

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.

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