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Programming: CRAN, Perl, Python

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  • Dirk Eddelbuettel: RcppSimdJson 0.1.4 on CRAN: New Improvements

    Brendan and I are happy to share that a new RcppSimdJson release 0.1.4 arrived on CRAN earlier today. RcppSimdJson wraps the fantastic and genuinely impressive simdjson library by Daniel Lemire and collaborators. Via very clever algorithmic engineering to obtain largely branch-free code, coupled with modern C++ and newer compiler instructions, it results in parsing gigabytes of JSON parsed per second which is quite mindboggling. The best-case performance is ‘faster than CPU speed’ as use of parallel SIMD instructions and careful branch avoidance can lead to less than one cpu cycle per byte parsed; see the video of the talk by Daniel Lemire at QCon (also voted best talk).

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  • Ravgeet Dhillon: Add Unsubscribe link in emails using Google Apps Script

    When setting up our email marketing campaigns or newsletters, one thing that is often forgot is Unsubscribe link. Not providing an option to unsubscribe from the mailing list can land our emails into spam. In this blog, we will look at how we can add an Unsubscribe link in our emails sent using Google Apps Script.

  • Perl weekly challenge 99
  • Perl Weekly Challenge 99: Pattern Match and Unique Subsequence

    Spoiler Alert: This weekly challenge deadline is due in a couple of days (February 14, 2021). This blog post offers some solutions to this challenge, please don’t read on if you intend to complete the challenge on your own.

  • berrybrew version 1.33 released!

    I've released berrybrew version 1.33. This version has significant enhancements, along with some bug fixes and handling of some uncaught exceptions. The changes reflect versions 1.30 to 1.33.

  • Learn And Code Confusion Matrix With Python

    The confusion matrix is a way to visualize how many samples from each label got predicted correctly. The beauty of the confusion matrix is that it actually allows us to see where the model fails and where the model succeeds, especially when the labels are imbalanced. In other words, we are able to see beyond the model's accuracy.

  • The 10 Best and Useful Tips To Speed Up Your Python Code

    If someone asks you – “What is the fastest-growing programming language in the world right now?” the answer will be simple. Its python. The worldwide popularity is due to its simple syntax and rich libraries. Nowadays, you can almost do anything with python: Data science, machine learning, signal processing, data visualization – you name it. However, many people claim that python is a little slow while solving grave problems. But the time to execute a program depends on the code one writes. With some tips and tricks, one can speed up Python code and enhance the program’s performance.

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.