
Reinventing Python tooling with Rust (Interview)
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Charlie Marsh built Ruff (an extremely fast Python linter written in Rust) and uv (an extremely fast Python package manager written in Rust) because he believes great tools can have an outsized impact. He believes it so much, in fact, that he started an entire company that builds next-gen Python tooling.
On this episode, Charlie joins us to tell us all about it: why Python, why Rust, how they make everything so fast, how they’re starting to make money, what other products he’s dreaming up, and more.
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Sponsors:
- Depot – 10x faster builds? Yes please. Build faster. Waste less time. Accelerate Docker image builds, and GitHub Actions workflows. Easily integrate with your existing CI provider and dev workflows to save hours of build time.
Featuring:
- Charlie Marsh – GitHub, LinkedIn, Mastodon, X
- Adam Stacoviak – Website, GitHub, LinkedIn, Mastodon, X
- Jerod Santo – Website, GitHub, LinkedIn, Mastodon, X
Show Notes:
Something missing or broken? PRs welcome!
Ruff
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- 0:00Welcome to The Changelog
- 1:09Sponsor: Depot
- 3:21Start the show!
- 4:04Intro to uv
- 6:22Inspired by Cargo
- 8:47Past tech for the future
- 12:58Full circle pollination
- 16:27Why fix Python packaging
- 21:36First steps
- 27:20No pitch deck required
- 29:02Clauding away
- 31:33The right way to install
- 32:43uv init / add
- 35:09The global cache
- 37:43Rust project structure
- 39:14Python or Rust?
- 42:04Rust ownership deep-dive
- 46:373 ownership rules
- 47:48Impossible vulns
- 49:26The source of speed
- 55:16First product! pyx
- 58:20A future public registry?
- 1:01:46What it means to be GPU-aware
- 1:08:39Other product ideas
- 1:12:46A new Python runtime?!
- 1:20:21Why a new runtime?
- 1:29:05Astral's brand
- 1:39:03Can't outsource voice
- 1:41:03Wrapping up
- 1:41:44Closing thoughts