# query Ryu\r
ret = self.net.ryu_REST('stats/flow', dpid=flow_dict['switch_dpid'], data=data)\r
flow_stat_dict = ast.literal_eval(ret)\r
-\r
logging.debug('received flow stat:{0} '.format(flow_stat_dict))\r
+\r
self.set_flow_metric(flow_dict, flow_stat_dict)\r
\r
self.monitor_flow_lock.release()\r