(self, app_label)
Deregisters the given app label. Remove the app label from the
        self.app_verbose_names as well.

        If the app label is not already registered, this will raise
        ImproperlyConfigured.
Deregisters the given app label. Remove the app label from the
        self.app_verbose_names as well.
Deregisters the given app label . Remove the app label from the self . app_verbose_names as well .
def deregister_app_verbose_name(self, app_label):
        """
        Deregisters the given app label. Remove the app label from the
        self.app_verbose_names as well.

        If the app label is not already registered, this will raise
        ImproperlyConfigured.
        """
        try:
            del self.app_verbose_names[app_label]
        except KeyError:
            raise ImproperlyConfigured(
                "%s app label was never registered in django-admin2" % app_label
            )
def deregister_app_verbose_name ( self , app_label ) : try : del self . app_verbose_names [ app_label ] except KeyError : raise ImproperlyConfigured ( "%s app label was never registered in django-admin2" % app_label )