This Python peculiarity can lead to some unexpected behavior of your programs. — Say, you want a function that appends some data to a list. And if the list is not passed, then appends the same data to a newly created list. What would be the obvious and naive way to go? Sure, why not use default arguments here? …

Passing a QR code as an SVG code This tiny project will generate a QR code for any text and pass it to the HTML template as an SVG code. SVG is a very convenient medium for URLs or other text. This small demo demonstrates a few things: How to…

How much faster is your app with indexes? — Even “Senior” developers often forget to use indexes in Django. You can’t imagine how faster it can get if you simply add two lines of code into your model! In this article we will take measurements together: with and without indexes. Setup Our patient will be a small Django application with…

Step by step guide to writing Tetris in Python with PyGame In this tutorial, we will write a simple Tetris using the PyGame library in Python. The algorithms inside are pretty simple but can be a little challenging for the beginners. We will not concentrate on PyGame mechanics too much…

A short trick how to debug your Django app Say, you have a Django app running on the server, and there are a lot of users currently using it. Now, you have a bug, and turning DEBUG to True is not an option. You still want to see your logs…

Why Google Bard and Apple Ajax are going to be better We all love how tools like ChatGPT and Copilot have made life easier, especially when it comes to coding. They’re like having an extra brain that saves us hours! But, there’s a catch that’s hard to ignore: these tools…

When Being Too Smart Makes Your Code Dumb Intro I often meet developers who are obsessed with code optimization. Don’t get me wrong, optimizing code is a noble endeavor — when done right, it can lead to programs that run faster, use fewer resources, and provide a better overall user experience…

Working in Django shell in PROD Situation You are working on a Django project in production, and you need to change a bunch of data in the database. You have two options: the right way — write a code locally, test it locally, then deploy and run, OR use python manage.py…

How to integrate a Telegram bot inside your Django App The problem We want to create a Telegram bot that will be able to access the database. If you simply write a function for the bot inside your Django app, how would you run it? You can't run it from the Django…