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Every Friday, you'll get a recap of the most important and exciting Python and coding news. The Friday Loop also keeps everyone posted on new ArjanCodes courses and any limited offers coming up.
Hey everyone, There’s one design pattern that regularly shows up in Python code, for example in libraries like Pandas or Matplotlib. But most developers don’t even realize they’re using it. I’m talking about the Builder Pattern. This week’s video is all about this pattern. I cover: Why the Builder Pattern is so useful for building complex objects (like config files, HTML pages, or queries) When to use it and when not to A real Python example: building a small UI using a builder pattern How to...
Hey everyone, With AI agents and micro-SaaS tools popping up everywhere, it’s easy to think we’ll soon replace all traditional SaaS platforms by just vibe-coding our own. But that's an oversimplification. In my latest video, I break down: ✅ Why many SaaS platforms won’t disappear anytime soon ✅ Where AI-powered development is already transforming the landscape ✅ Which SaaS products are truly at risk, and which are stronger than ever Happy coding! Cheers, Arjan Do you enjoy my content on...
Hey everyone, I love it when I come up with a design that uses exactly the things I thought were a sign of bad design. In this week's video I show you how to build a clean Python SDK for a REST API. The idea was simple: create a reusable base model that handles all the CRUD operations so you can just write User.find() and user.save(), without duplicating logic all over your codebase. Sounds great, right? Well, after recording the video, I realized something: not all APIs will have all CRUD...