#199: Charlie Marsh On Ty, Uv, And The Python Tooling Renaissance Pybites podcast

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#199: Charlie Marsh on ty, uv, and the Python tooling renaissance

3d ago 53:28

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Charlie Marsh returns to Pybites to introduce ty —Astral’s bold new take on Python type checking. Built from the ground up for speed and developer experience, ty is both a command-line tool and language server, powered by Rust's Salsa framework.

We dive into how it enables lightning-fast incremental analysis, smarter diagnostics inspired by Rust, and a reimagined type-checking workflow for modern Python projects. Charlie also shares how Astral is tackling broader ecosystem challenges alongside Meta and NVIDIA.

Curious? Just run 'uv x ty' and join the future of Python type checking.

For more info reach out to Charlie on socials:

Notes & Blog Posts: https://notes.crmarsh.com/

LinkedIn: https://www.linkedin.com/in/marshcharles/

GitHub: https://github.com/charliermarsh

X: https://x.com/charliermarsh

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Chapters

1. TY's Advanced Incrementality Model (00:00:00)

2. Introduction to the PyBytes Podcast (00:00:22)

3. Catching Up with Charlie Marsh (00:00:41)

4. UV's New Build System (00:03:17)

5. Hardware Acceleration in Python Packaging (00:05:27)

6. Introducing TY: Type Checker & Language Server (00:10:32)

7. Performance Architecture and Incrementality (00:17:23)

8. Error Messages and Helpful Diagnostics (00:30:03)

9. Evolving with Python's Type System (00:35:18)

10. Future of Ruff and TY Integration (00:42:11)

11. TY Adoption and Design Philosophy (00:50:34)

12. Final Thoughts and Team Recognition (00:52:41)

200 episodes

#Tech #Julian Sequeira & Bob Belderbos #Bob Belderbos #Julian Sequeira