attrs

vs

dataclasses

? I think they’re similar, but haven’t used

attrs

. Am curious about if there’s any major pros/cons between them?

There is a discussion on dataclass's github: https://github.com/ericvsmith/dataclasses/issues/60, as well es a short section on the pep: https://www.python.org/dev/peps/pep-0557/#why-not-just-use-attrs

I haven’t used attrs. I prefer using stdlib features unless there’s another lib provides a much better UX (err DX? Developer Experience?) hopefully without a significant performance penalty. So,

dataclasses

is my go to.

Thanks, those were enlightening reads, as well as https://github.com/ericvsmith/dataclasses/issues/19

I'm forced to use attrs in Pex since Pex supports Python 2.7. From an ergonomics perspective its stricly superior with special handling for _private, converters, defaulters and validators.