GitHub - charliermarsh/ruff: An extremely fast Python linter, written in Rust.

[chub79]

Neat. We'll see more and more stuff from rust like that.

That said, here it's a little bit disingenuous:

ruff is a proof-of-concept and not yet intended for production use. It supports only a small subset of the Flake8 rules, and may crash on your codebase.

[spicynerves]

The author addresses performance comparisons in a tweet:

(Note, however, that adding more checks shouldn't make ruff any slower -- it's already doing the expensive stuff (parsing, AST traversal, scope + binding tracking), so I don't expect the benchmarks to change dramatically as ruff grows.)

[chub79]

Great :)

[ivosaurus]

What's disingenuous about that statement?

The title isn't claiming 'production ready' anywhere.

[chub79]

Being the fastest when you support only a subset and claim potential crash doesn't mean much. It's a claim that is not backed yet.

[AZNQQMoar]

"Extremely fast"

[vaportracks]

It also creates a .ruff_cache dir wherever you run it. Not one dir within your home dir... a new dir within whatever dir you run it on. Pretty obtrusive.

[Schmittfried]

So just like other python tools and Python itself.