r, c = ofc_t[switch_dpid].insert_task("update-net", net_id)
if r < 0:
- message = "Cannot insert a task for updating network '$s', %s", net_id, c
+ message = "Cannot insert a task for updating network '{}', {}".format(net_id, c)
self.logger.error(message)
raise ovimException(message, HTTP_Internal_Server_Error)