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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.
Hi there, Be honest—how much do you enjoy writing tests? If the answer is “not at all,” chances are your setup is too complicated. In this week’s video, I show you how to set up pytest the right way—step by step, with zero fluff. I go from zero tests to a fully working pytest setup, covering advanced tricks along the way (including one almost nobody knows about). 🧪 By the end, your tests will be clean, fast, and easy to maintain. No more fighting with pytest configurations. If your test suite...
Hi there, If your Docker builds are taking forever, your images are probably bloated with unnecessary dependencies. In this week’s video, I break down how to optimize your Dockerfiles step by step. 🐋 I cover better base images, BuildKit, multi-stage builds, and smarter dependency management—all to make your builds faster and leaner. Plus, I ran into a weird Docker issue I still haven’t figured out. Watch today’s video and speed up your builds! 🎥 Cheers, Arjan # News Happy Pi Day! 🐍🥧 Besides...
Hi there, If you’ve ever looked at TypeScript code and thought, “Hey, that kinda looks like Python!”, you’re not wrong. But under the hood, these two languages couldn’t be more different. Python was designed for simplicity and readability. It’s dynamically typed, making development easy but deployment tricky. TypeScript, on the other hand, adds strict static typing to JavaScript, helping with large-scale applications but making setup and debugging more complex. So, which one should you use? 🤔...