attrs - The Three of Wands

Why I use attrs instead of pydantic

2 years ago 11 min read attrs cattrs python pydantic

This post is an account of why I prefer using the attrs library over Pydantic. I'm writing it since I am often asked this question and I want to have something concrete to link to.

On structured and unstructured data, or the case for cattrs

3 years ago 5 min read python attrs cattrs

If you've ever gone through the Mypy docs, you might have seen the section on TypedDict. The section goes on to introduce the feature by stating: Python programs often use dictionaries with string

attrs III: Frozen Classes

6 years ago 6 min read python attrs

This is the third post in my series on the inner workings of attrs. Here are the others: attrs I: The Basics attrs II: Slots What are Frozen Classes Frozen, in this context,

attrs II: Slots

6 years ago 8 min read python attrs

This is the second post in my series on the inner workings of attrs. The series starts here. Out of the box, attrs can customize your classes in two different, orthogonal ways -

attrs I: The Basics

6 years ago 3 min read python attrs

This is the first article in my series on the inner workings of attrs. Attrs is a Python library for defining classes a different (much better) way. The docs can be found at