def load(self, *args, **kwargs):
        for app in self.apps_list:
            app_class_name = self.apps_location_prefix + "." + app
            try:
                app_class = importutils.import_class(app_class_name)
                app = app_class(*args, **kwargs)
                self.apps.append(app)
            except __HOLE__ as e:
                LOG.exception(_LE("Error loading application by class, %s"), e)
                raise ImportError(_("Application class not found."))
dataset/ETHPy150Open openstack/dragonflow/dragonflow/controller/dispatcher.py/AppDispatcher.load