No missing attribute error by mypy

[yamitzky]

mypy does not warn missing attribute when inheriting BaseModel.

from pydantic import BaseModel

class A:
    x: int

class B(BaseModel):
    x: int

A().y
B(x=1).y

main.py:9: error: "A" has no attribute "y"

Can I check missing attribute for B().y?

[samuelcolvin]

Thanks for the question.

I would guess this is because BaseModel implements __getattr__ so mypy can't easily work out whether B().y would raise an AttributeError.

Not really much we can do about this I'm afraid.

[yamitzky]

I see... Thanks for your reply!