Attrs – The One Python Library Everyone Needs

• pydantic

  167 18,617 9.8 Python

  Data validation using Python type hints

  

Pydantic is dataclasses, except types are validated at runtime? It's nice and looks just like a normal dataclass looking at https://pydantic-docs.helpmanual.io/

For any larger program, pervasive type annotations and "compile" time checking with mypy is a really good idea though, which somewhat lessens the need for runtime checking.

• dataclasses

  3 581 2.6 Python

dataclasses was explicitly inspired by attrs. https://github.com/ericvsmith/dataclasses/issues/1

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• CPython

  1,313 59,531 10.0 Python

  The Python programming language

  

This is only remotely relevant but I recently learned that the related `dataclasses` id implemented by constructing _string representations_ of functions and calling `exec` on them.

https://github.com/python/cpython/blob/3.10/Lib/dataclasses....

Kind of blew my mind

• traits

  3 415 5.8 Python

  Observable typed attributes for Python classes (by enthought)

  

My favourite among this class of Python libraries has been traits from Enthought:

https://github.com/enthought/traits

Suggest a related project