Support empty string with EmailStr validation

Hello,

I configured the following field:

representative_email: EmailStr = None

When passing an empty string “” as value, I get the following error:

Email address is not valid (error_type=ValueError track=EmailStr)

How can I configure va validator to support those values a I can’t change the incoming format?

[jaddison]

For anyone curious on a working solution here:

class EmailEmptyAllowedStr(EmailStr):
    @classmethod
    def validate(cls, value: str) -> str:
        if value == "":
            return value
        return super().validate(value)

[samuelcolvin]

Maybe you need Optional[EmailStr]