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2 articles
Python 3.13: Free Threading and a JIT Compiler
Real Python's clear-eyed breakdown of the two most consequential changes to CPython in years: an experimental build that makes the GIL optional (real thread-based parallelism for CPU-bound Python, finally) and a JIT compiler that's still early but points at where the interpreter is headed. Neither is production-default yet, and the article is honest about that — it's a guide to what's coming and how to try it, not a victory lap. If you've been telling people "Python doesn't do real threads," read this before you say it again.
Async IO in Python: A Complete Walkthrough
One of the more patient walkthroughs of Python's asyncio I've come across, building up from coroutines and the event loop to real async/await usage instead of just showing a toy example and moving on. Real Python's usual strength shows here: it doesn't skip the parts that actually confuse people, like why you can't just sprinkle "async" on a function and expect concurrency for free, or what happens when you forget to await something. Good to have on hand the next time someone on the team asks "wait, is this actually running concurrently or not."