Language Selection

English French German Italian Portuguese Spanish

Python Programming and More

Submitted by Roy Schestowitz on Sunday 12th of December 2021 10:30:03 PM Filed under
Development
  • Magnetometer COMPASS with Raspberry PI Pico: GY-271 HMC5883L wiring and use with MicroPython - peppe8o

    Many projects (like robotic ones) need to get info about spacial position and direction. In this sense one of most useful device for projects involving Raspberry PI Pico is an HMC5883L magnetometer compass

    In this tutorial, I’m going to show you how to wire, calibrate (X / Y axes) and use an HMC5883L device, also known as a magnetometer, with Raspberry PI Pico using MicroPython.

  • Create a Python virtual environment in the Linux terminal

    The Python package ecosystem offers and abundance of readily available building blocks for your Python applications. Great for your productivity as a Python developer. However, it can quickly become a dependency nightmare. Especially when Python applications depend on different versions of the same Python package. You can sidestep this problem with the help of a Python virtual environment. This article explains how you create and manage a Python virtual environment in the Linux terminal.

  • Exerising Python 3.10 on Fedora 25 via sorting Pandas DataFrame

    The text file alpha-wide.txt contains only capital letters of the Latin alphabet (ABC… Z). Identify the character that most often occurs in the file immediately after the letter X. In the answer first write down this character, and then immediately (without a separator) how many times it occurred after letters X. If there are several such characters, you need to display the one that appears earlier in the alphabet.

  • Adam Young: Nested Selection Criteria in jq

    I’m working with API data from a netbox instance. I want to select a device-typ URL based on the manufacturer. However, the value “manufacturer” in the result is a dictionary. I want to select where that manufacturer has the name “Ampere” or some other manufacturer.

  • How to cross-compile 850+ packages using Yocto/OpenEmbedded

    Over the years I have received a few enquiries about how to get going with Yocto/OpenEmbedded -- I will call it OE from now on -- and in reply I have mentioned that it has a very steep learning curve. Start reading the documentation and your eyes will glaze over very quickly!
    However, you can follow some simple steps and compile 850+ packages without trauma. It should just work. Knowledge of how OE works can be learnt gradually, later on.
    One thing to understand is that OE mostly targets embedded systems, and is not really intended to build packages for a desktop PC. However, it is a testimony to the flexibility of OE that it can be made to do this -- my "dunfell" project tarball has many tweaks to achieve this.
    Another very important point is that it is a cross-compile environment. This is great, you can be running on a x86_64 Linux host system and compile for a aarch64 target, for example. I am currently supporting x86_64 (nocona) and aarch64 targets. However, cross-compiling is sometimes like trying to sweep dung uphill. Build recipes may have to do all kind of tricky things to perform a successful compile of a package. OE is incredibly sophisticated and despite the cross-compile hurdle can successfully compile large packages, such as Libreoffice.

»

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.

More on Tux Machines: About ● Gallery ● Forum ● Blogs ● Search ● News ● RSS Feed

Part of Bytes Media ● Sister sites below.

TechBytes Techrights button

Powered by Drupal, an open source content management system

Content available under CC-BY-SA CC

© by original authors

Powered by CentOS 6.5 (GNU/Linux), Varnish, and Drupal 6