#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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Avsnitt(549)

#550: AI Contributions and Maintainer Load in Open Source

#550: AI Contributions and Maintainer Load in Open Source

You wake up, brew the coffee, open GitHub, and there it is. Another pull request on your open source project. Thirteen thousand lines added. No issue filed first. No discussion. Just "here, please rev...

30 Maj 1h 2min

#549: Great Docs

#549: Great Docs

Your documentation has two audiences now - humans reading the rendered HTML, and AI agents trying to make sense of your library. Rich Iannone and Michael Chow from Posit are back on Talk Python with a...

25 Maj 1h 7min

#548: Event Sourcing Design Pattern

#548: Event Sourcing Design Pattern

What if your database worked more like Git? Every change captured as an immutable event you can replay, instead of a single mutating row that quietly forgets its own history. That's event sourcing, an...

11 Maj 1h 8min

#547: Parallel Python at Anyscale with Ray

#547: Parallel Python at Anyscale with Ray

When OpenAI trained GPT-3, they didn't roll their own orchestration layer. They used Ray, an open source Python framework born out of the same Berkeley research lab lineage that gave us Apache Spark. ...

6 Maj 59min

#546: Self hosting apps for Python people

#546: Self hosting apps for Python people

The cloud is convenient until it isn't. You upload your photos, sync your contacts, click through the cookie banners. Then prices go up again or you read about a family that lost their entire Google a...

27 Apr 1h 3min

#545: OWASP Top 10 (2025 List) for Python Devs

#545: OWASP Top 10 (2025 List) for Python Devs

The OWASP Top 10 just got a fresh update, and there are some big changes: supply chain attacks, exceptional condition handling, and more. Tanya Janca is back on Talk Python to walk us through every si...

16 Apr 1h 6min

#544: Wheel Next + Packaging PEPs

#544: Wheel Next + Packaging PEPs

When you pip install a package with compiled code, the wheel you get is built for CPU features from 2009. Want newer optimizations like AVX2? Your installer has no way to ask for them. GPU support? Yo...

10 Apr 1h 11min

#543: Deep Agents: LangChain's SDK for Agents That Plan and Delegate

#543: Deep Agents: LangChain's SDK for Agents That Plan and Delegate

When you type a question into ChatGPT, the model only has what you typed to work with. But tools like Claude Code can plan, iterate, test, and recover from mistakes. They work more like we do. The dif...

1 Apr 1h 3min

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