How to use with ABC / ABCMeta

I was trying to define a pydantic class with abstract methods, which was harder than I thought due to metaclass conflicts. I finally managed to do it like this:

from abc import ABCMeta, abstractmethod
from pydantic import BaseModel
from pydantic.main import MetaModel

class PydanticWithABCMeta(ABCMeta, MetaModel):
    pass

class MyPydanticClass(BaseModel, metaclass=PydanticWithABCMeta):
    some_field: str

    @abstractmethod
    def my_abstract_method(self):
        pass

Not sure it’s the best approach, but if it is, would be worth documenting it somewhere?

[samuelcolvin]

thanks for your work on this.

[jcugat]

Addressed in #123