Past related threads:

Attrs – The python library everyone needs (2016) - https://news.ycombinator.com/item?id=17160262 - May 2018 (2 comments)

Using attrs for everything in Python - https://news.ycombinator.com/item?id=12359522 - Aug 2016 (101 comments)

The One Python Library Everyone Needs - https://news.ycombinator.com/item?id=12285342 - Aug 2016 (1 comment)