The new generic syntax is great as well, the debugging improvements are handy and I do appreciate the new @deprecated. But 3.13 really shines, once again, with

The new generic syntax is great as well, the debugging improvements are handy and I do appreciate the new @deprecated. But 3.13 really shines, once again, with the improvement of error messages. Now when you are a professional dev, you see them less and less, because you make less mistakes, but also because you heavily use tooling to prevent errors or diagnose them. But if you observe beginners with modern versions of Python, it's quite magical really. The autonomy and confidence they get from those are huge. The energy that Pablo Galindo Salgado injected into the culture of good error message has been a boon to the language.