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Python Programming

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Development
  • Teach Python with the Mu editor

    Teaching kids to code is very popular in schools. Many years ago, in the days of the Apple II and Logo programming, I learned about turtle graphics. I enjoyed learning how to program the virtual turtle and later helping students to do the same.

    About five years ago, I learned about Python's turtle module, and it was the segue to my Python journey. Soon, I started using the turtle module to teach students Python programming basics, including using it to create interesting graphics.

    [...]

    In the early days of my Python adventure, I used IDLE, Python's integrated development environment. It was much easier than entering commands into the Python shell, plus I could write and save programs for later use. I took some online courses and read many excellent books about Python programming. I taught teachers and students how to create turtle graphics using IDLE.

  • Use this Python script to simulate Babbage's Difference Engine

    Charles Babbage (1791–1871) was an avid mathematician with very wide interests. He is well-known for envisioning the idea of computers and single-handedly developed what he called a Difference Engine to make serial calculations. It was a mechanical machine with a series of axles and gears to make calculations, with the output being a printed table. I recently began reading his 1864 book, Passages from the Life of a Philosopher, where he explains how the Difference Engines came to be.

    One of the problems his Engine was designed to solve relates to the idea of children playing with marbles and arranging them in a progressive pyramidal shape, with one marble in the top row, two in the second, three in the third, and so on. For small pyramids, you can simply count the marbles to find how many there are. But Babbage wanted to create an automatic list or table with one column showing the number of rows and another column showing the total number of marbles.

  • TDD in Python with pytest - Part 5

    This is the fifth and last post in the series "TDD in Python with pytest" where I develop a simple project following a strict TDD methodology. The posts come from my book Clean Architectures in Python and have been reviewed to get rid of some bad naming choices of the version published in the book.

  • PyDev of the Week: Jim Anderson

    This week we welcome Jim Anderson (@jimande75053775) as our PyDev of the Week! Jim is a contributing writer for Real Python.

    [...]

    I love to snowboard in the winter and I’m an avid bike commuter, though I’ll admit that sounds more impressive than it is – I only live 3 miles from work! I’ve got two grade-school aged daughters and a lovely wife, all of whom ski and give me grief for snowboarding.

    I’ve been lucky enough to get to program for a living since I was a kid, mainly on low-level and embedded software, with a couple of brief turns doing enterprise-level band-end code.

  • Test and Code: 131: Test Smarter, Not Harder

    Some people avoid writing tests. Some drudge through it painfully.
    There is a better way.

  • Replace Occurrences of a Substring in String with Python

    Replacing all or n occurrences of a substring in a given string is a fairly common problem of string manipulation and text processing in general. Luckily, most of these tasks are made easy in Python by its vast array of built-in functions, including this one.

  • PB Python Article Roadmap

    September 17th is Practical Business Python’s anniversary. Last year, I reflected on 5 years of growth. This year, I wanted to take a step back and develop a guide to guide readers through the content on PB Python.

    As of this writing, I have 84 articles on the site. They vary from fairly complex and lengthy to quick summaries. When I wrote them, I did it based on my interests at the time and without much thought on progression. Now that I have a decent volume of articles, I want to organize them in a more meaningful way.

    My ultimate goal for this site is that I want it to be a resource to help people use Python to automate away many of the repetitive tasks they do on a daily basis with tools like Excel. A secondary goal for is to cover more advanced Python topics that are difficult to do in Excel.

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.