Comment by phailhaus
15 hours ago
There is no facility in the type system to express the idea that "whatever class attributes are defined, those are kwargs to the init function". That's hacked in using extra typechecker plugins. That's why we're sitting around talking about if a particular typechecker "supports pydantic", rather than it just working.
Technically there is dataclass_transform [1]. It's an ungodly hack, I don't know how it passed PEP review. And support by type checkers is questionable. After TS python hints feels like rigid and total unsound mess.
[1]: https://docs.python.org/3/library/typing.html#typing.datacla...
There is a way to indicate whatever class attributes are defined, those are kwargs to the init function. For one, you can use `kw_only` on the dataclass decorator [1], alternatively you can use the `kw_only` arg on the field function [2].
[1]: https://docs.python.org/3/library/dataclasses.html#dataclass...
[2]: https://docs.python.org/3/library/dataclasses.html#dataclass...