def __init__(self, user, *args, **kwargs):
        """
        The current ``user`` is needed for initialisation of this form so
        that we can check if the email address is still free and not always
        returning ``True`` for this query because it's the users own e-mail
        address.

        """
        super(ChangeEmailForm, self).__init__(*args, **kwargs)
        if not isinstance(user, get_user_model()):
            raise TypeError, get_user_model().__name__ % "user must be an instance of %s"
        else: self.user = user
dataset/ETHPy150Open clione/django-kanban/src/core/userena/forms.py/ChangeEmailForm.__init__/swapped operands of `%`