it could be very interesting to have some sort of static analysis (specifically for the pants codebase, which uses absolute imports) that checks whether a python class is unused, or unused except in test targets (we would use the

ast

module for this)

This would be cool. Kinda like Flake8 warning about unused variables

yes! also it's possible to import something transitively in python because there are no explicit exports and i think we always want to warn about that, there's an issue

MyPy warns about what I think you’re mentioning. MyPy requires that you explicitly re-export via

import as

omfg

MyPy was transformational to me liking Python

i'm using coffeescript with flow types now and i love it for the same reason as i love mypy

I love Flow!! Their intersection types are 🔥