[js2]

Many, but it also has many that pylint does not. I use them both, ruff first, followed by pylint.

https://docs.astral.sh/ruff/faq/#how-does-ruffs-linter-compa...

https://github.com/astral-sh/ruff/issues/970

[_flux]

Seems though mypy/pyright/pyre/pyrefly or the future ty could bridge the gap, if one is writing typed python?

[greatgib]

The big question will be to know if tools will still be fast once they will have added the tests that are missing.