[neuland]

The standard library is not going to have more advanced features than what the community can do, if only because of the release cycle.

Meanwhile, I was not a user of attrs before, rather I used collections.namedtuple and then typing.NamedTuple. So, data classes is a win for me and other people like me who weren't using attrs. And you can continue to use attrs without being bothered at all.

In Raymond Hettinger's talk [0] at PyCon 2018, he even says that more features from attrs will likely get added, such as data validation [1]. And that his talk was the one chance for the developer (Eric Smith) to get praise, because everyone is going to instantly second guess every decision he made.

[0] https://www.youtube.com/watch?v=T-TwcmT6Rcw

[1] see 42:36 on future directions