PasswordValidator Protocol methods do not match

[tilsche]

Bug report

What's wrong

class PasswordValidator(Protocol):
    def password_changed(self, password: str, user: Optional[_UserModel] = ...): ...

How is that should be

The methods of all actual Validators look like this.

    def validate(self, password: str, user: Optional[_UserModel] = ...) -> None: ...
    def get_help_text(self) -> str: ...

I am not sure why this does not turn up as error for the given functions where it is used as parameters. E.g. contrib.auth.password_validation.validate_password uses the validate method of the argument / return value from get_default_password_validators typed PasswordValidator.

System information

• django-stubs version: master