My new article on the design & implementation of the CPython VM is out. It is my most comprehensive article yet, at 5500 words and 17 code listings, such as this: The VM is the most central piece of any interpreted language because this is how your code eventually executes. As a developer, learning about it can help you write more efficient code and debug complex problems. As a student or a compiler enthusiast, you can learn how a real-world language is implemented. The article covers a ton of details, such as bycode packing format, stack frames, bytecode evaluation loop implementation using switch case vs computed goto and a walk through of a toy Python program on the VM to illustrate how code executes.

I think the uv script feature might have a big impact by lowering the access to any library of Python ecosystem. Once you know you can run a cool script you find around without the need to create an ephemeral environment yourself, not fear to bork your own… you will do it more!

After toying around with uv from @astral_sh I think it might be time to add a dialect of the TIL blogposts that @simonw helped make popular. Now that we can always call `uv run ...` it would be amazing to share scripts more! So maybe today I scripted? koaning.io/posts/today-i-scr…