def form_valid(self, form):
        # By assigning the User to a property on the view, we allow subclasses
        # of SignupView to access the newly created User instance
        self.user = form.save(self.request)
        try:
            return complete_signup(
                self.request, self.user,
                app_settings.EMAIL_VERIFICATION,
                self.get_success_url())
        except ImmediateHttpResponse as e:
            return e.response