#539: Catching up with the Python Typing Council

#539: Catching up with the Python Typing Council

You're adding type hints to your Python code, your editor is happy, autocomplete is working great. But then you switch tools and suddenly there are red squiggles everywhere. Who decides what a float annotation actually means? Or whether passing None where an int is expected should be an error? It turns out there's a five-person council dedicated to exactly these questions -- and two brand-new Rust-based type checkers are raising the bar. On this episode, I sit down with three members of the Python Typing Council -- Jelle Zijlstra, Rebecca Chen, and Carl Meyer -- to learn how the type system is governed, where the spec and the type checkers agree and disagree, and get the council's official advice on how much typing is just enough.

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#559: 12 Things You Should (and Shouldn't) Do in AWS

#559: 12 Things You Should (and Shouldn't) Do in AWS

Your site is down. It's 3am. Is it a bug, a bill, or a breach? You can't tell yet, and everyone is watching you find out. Matt Lea has spent fifteen years being the person companies call when an outag...

19 Aug 1h 7min

#558: Hyper-Personal Software with Python

#558: Hyper-Personal Software with Python

Every company has one. The little internal tool that Jane built back in 2021, and then Jane left. Nobody understands it, nobody will touch it. There are two unwritten rules around it: don't change it,...

10 Aug 1h 2min

#557: Security of everything at PyCon 2026

#557: Security of everything at PyCon 2026

Security has always been the vegetables of software. Everyone agrees it matters, and somehow it never quite makes it onto the plate. At PyCon US this year, that changed. For the first time ever, secur...

2 Aug 1h 8min

#556: Updates on Django's Async Story

#556: Updates on Django's Async Story

For years, "Django and async" came with an asterisk. The docs themselves warned you off it. Scary performance notes, a story that felt half-finished. Well, that story just got rewritten, literally, an...

26 Juli 1h 4min

#555: Marimo Pair - A Canvas for Agent + Developers Collaboration

#555: Marimo Pair - A Canvas for Agent + Developers Collaboration

Coding agents have gotten really good at one kind of work. You scope a feature, edit some files, run the tests, ship it. It all happens on disk. But that is not how data work feels. You load something...

13 Juli 1h 4min

#554: Trustworthy AI in Healthcare and Longevity

#554: Trustworthy AI in Healthcare and Longevity

You ask an AI a question and it answers with total confidence. Most of the time, a confidently wrong answer is just an annoyance. But what if the question is medical, and there's a real patient on the...

10 Juli 1h

#553: All of our tools

#553: All of our tools

This episode is a fun crossover from our Python news and tips podcast, Python Bytes. We have had some big changes over there. Brian Okken has moved on and Calvin Hendryx-Parker has joined the show as ...

26 Juni 55min

#552: Astral joins OpenAI

#552: Astral joins OpenAI

OpenAI just acquired Astral, the company behind uv, Ruff, and ty. And if your first thought was "wait, is uv toast?", you are not alone. But here's the twist Charlie Marsh shared with me: he thinks th...

17 Juni 1h 5min

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