pydantic_validation.py

from pydantic import BaseModel, validator

class InvalidDBCredentialsModel(BaseModel):
    comment: str
    password: Password
    uri: DBUri
    port: DBPort
    host: DBHost

    @validator("password")
    def password_length_check(cls, v):
        passwd = v.get_secret()
        if len(passwd) > 7:
            v.add_secret(passwd)
            return v
        raise ValueError("Password length should be more than 7")

    class Config:
        arbitrary_types_allowed = True