Couldn’t you do this with a type annotation? e.g. SQLAlchemy could have a SQL type so tools like mypy could see a Template instance and confirm you’re using it safely but Black, Ruff, or SQLFluff could look for the more specialized Annotated[Template, SQL] to realize that the template could be formatted as SQL, and something like Django could even have Annotated[Template, Email], Annotated[Template, HTML], or Annotated[Template, JSX] to indicate what context the same templating syntax is targeting.
This is what we discussed in the first revision of the PEP (the use of `Annotated`.) But we found out: linters don't know anything about the Python type system.
We hope to get a community around all of this, stuff at PyCon US, EuroPython, etc. and work some of this out. The JSX/TSX world really has good tooling. We can provide that for those that want it, perhaps better on some aspects.
Interesting, thanks for the background. I’ve been curious what Astral is going to do in the space but also worry about what happens when their funding runs out.
