Custom Fields not recognised by PyCharm

I have the following custom Field:

class NonEmptyString(str):
     @classmethod
    def __get_validators__(cls):
        yield cls.validate

    @classmethod
    def validate(cls, v):
        if v == "":
            raise ValueError("Non-empty string expected")
        return v

and a model using it:

class MyModel(BaseModel):
    field: NonEmptyString

but when I instantiate MyModel:

my_model = MyModel(field="a string")

I get the following warning from pycharm’s linter:

Expected type 'NonEmptyString' got 'str' instead

Is this behaviour expected?

Versions pydantic 1.1.1
pycharm-pydantic-plugin: 0.0.27

[otsuka]

FYI, pydantic EmailStr has a bug.

EmailStr type is used in a model,

addr = Address(email='[e-mail]')

the plugin raises a warning on editor.

addr = Address(email=EmailStr('[e-mail]'))

This code is type checking safe, but running it on Linux raises ValidationError. https://github.com/samuelcolvin/pydantic/issues/1070#issuecomment-568477871

[koxudaxi]

@avlahop

Is this behaviour expected?

Yes, We expect the behavior. @dmontagu explained about the behavior and history.

We should add a panel of settings to control the warnings. Sorry, I have not tried to implement the feature yet. I will try it next week.

@dmontagu Your idea looks good. But I try to implement the panel of settings. If I can not do it next week, then let’s discuss the option on `config.