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Python Programming Leftovers

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Development
  • mypy: how to use it in my project? Part 3: kick-ass tools that leverage type annotations

    Type annotations are a formalized way to add some extra information about types to your project. Once you get through adding mypy to your project and annotate your code (remember you can do it automatically, at least to some extent) you will find yourself at the ocean of possibilities.

    Interested in good code and even better tests? Check out my upcoming book on the architecture - Implementing the Clean Architecture.
    This post will show the most impressive libraries that leverage type hints that I know.

  • How long did it take you to learn Python?

    Beginners seem to ask this question when they are feeling daunted by the challenge before them. Maybe they are hoping for a helpful answer, but it seems like most answers will just be a jumping off point for feeling bad about their own progress.

    Everyone learns differently. They learn from different sources, at different paces. Suppose you ask this question and someone answers “one month”? Will you feel bad about yourself because you’ve been at it for six weeks? Suppose they say, “ten years”? Now what do you think?

    The question doesn’t even make sense in a way. What do we mean by “learn”? If you can write a number guessing game in Python, have you learned Python? Are we talking about basic familiarity, or deep memorization? Does something have to be second nature, or is it OK if you are still looking through the docs for details? “Learned” is not a binary state. There isn’t a moment where you don’t know Python, and then suddenly you do.

  • Test and Code: 107: Property Based Testing in Python with Hypothesis - Alexander Hultnér

    Hypothesis is the Python tool used for property based testing.
    Hypothesis claims to combine "human understanding of your problem domain with machine intelligence to improve the quality of your testing process while spending less time writing tests."

    In this episode Alexander Hultnér introduces us to property based testing in Python with Hypothesis.

  • Hidden Markov Model - Implemented from scratch

    The Internet is full of good articles that explain the theory behind the Hidden Markov Model (HMM) well (e.g. 1, 2, 3 and 4) . However, many of these works contain a fair amount of rather advanced mathematical equations. While equations are necessary if one wants to explain the theory, we decided to take it to the next level and create a gentle step by step practical implementation to complement the good work of others.

    In this short series of two articles, we will focus on translating all of the complicated mathematics into code. Our starting point is the document written by Mark Stamp. We will use this paper to define our code (this article) and then use a somewhat peculiar example of “Morning Insanity” to demonstrate its performance in practice.

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.