def do_relogin(self, line):
        try:
            self.session.relogin()
            self.logged_in.wait()
        except spotify.Error as e:
            self.logger.error(e)
Validate that form_invalid_message is set and is either a
dataset/ETHPy150Open mopidy/pyspotify/examples/shell.py/Commander.do_relogin--crossover with--dataset/ETHPy150Open brack3t/django-braces/braces/views/_forms.py/FormInvalidMessageMixin.get_form_invalid_message