Ergonomic, hermetic, user-friendly software build system for Python, Go, Java, Kotlin, Protobuf, Scala, Shell. Pants lets you fearlessly scale up your codebase!

Pants

I have a macro I'm registering in `pants.toml` with `build_file_prelude_globs` which in it I put type hints (because I'm used to it).

Specifically I used `foo: str | None = None` . Myself and all my devs use py 3.8. I can see `py3.8` being used in the Pants bootstrap env.
I use the macro in a few places.

...and yet nothing errors (It should, the union syntax for the types wasn't added until 3.10). Until now. Someone just got the error.

What's happening? I'm bewildered.

I'm guessing Pants is finding Python3.10 on my PATH and using it because it is newer than 3.8. So even though I have 3.8 as my python ICs whatever version Pants want to use for it's own purpose is up to it?

Yeah weird, I guess everyone but that person has py3.10 installed.