Convert to 3.10 Typing Syntax?

[kmcentush]

I know that ruff has the ability to move type-specific imports into a type checking block at the top of the file (aside: how to do I enable that?), but I was wondering if it also had the ability to force-convert all types into the 3.10 syntax. i.e. List[str] -> list[str], etc.

Thanks!

[charliermarsh]

Yup! We have rules for that: non-pep585-annotation and non-pep604-annotation.

You'd turn them on like:

[tool.ruff]
extend-select = ["UP"]
target-version = "py310"

That enables all the "upgrade"-related rules, but you can be more targeted if you want:

[tool.ruff]
extend-select = [
  "UP006",  #  non-pep585-annotation
  "UP007",  #  non-pep604-annotation
]
target-version = "py310"

[kmcentush]

Perfect, thanks Charlie!