Python 3.15 adds lazy imports with the new lazy keyword! 🐍 Instead of loading a module when your script starts, Python waits until you actually use it. Here's a quick example: lazy import json lazy from pathlib import Path Good use cases: - CLI tools where most commands only need a few modules - Big libraries like pandas or numpy that you only use in one code path - Apps where startup time matters The result is faster startup times with almost no code changes. Will you use it? 🚀

Python 3.15 adds frozendict as a built-in type! 🐍 It works like a dict, but it's immutable. Once you create it, you can't change it. That also makes it hashable, so you can use it as a dict key or put it in a set. Great for config data you don't want changed by accident. Will you use it? Here's a quick example:

Python 3.15 is officially out! 🐍🚀 Here are some of the new features I'm most excited to try: 1. Lazy imports with the new lazy keyword for faster startup times 2. frozendict is now a built-in type 3. A new sentinel built-in type 4. Unpacking in comprehensions 5. UTF-8 is now the default encoding 6. Tachyon, a new sampling profiler in the profiling package 7. A faster experimental JIT compiler 8. Better error messages and more color in the CLI Which one will you use first?