This is exactly the sort of thing I've been looking for. Not sure how production-grade it is* but definitely gonna use it for some scripts and data processing.

This is exactly the sort of thing I've been looking for. Not sure how production-grade it is* but definitely gonna use it for some scripts and data processing. I love python, most of all its ecosystem, and use types extensively, but it still misses some things I wish it had better support for. Namely: immutability, and explicit side effects, which are both prominent features of Erg. So this is super exciting. Does anyone know if Erg code can be (ergonomically) called from python? I think that'd be the real killer feature, being able to write erg modules and pull it into the greater python ecosystem as easily as native python. * looks like the project is nary a few weeks old? Can't really dig into the git history on mobile, it freezes my browser