Python检测网络延迟的代码

#!/usr/bin/env python 
# coding: utf-8 
# coding: cp950 
''''' 
Create Date: 2012-11-06 
Version: 1.0 
Description: Detection host survival 
Author: Victor 
QQ: 1409175531 
''' 
''''' Please run the script with root ''' 
import ping 
import sys 
def help(): 
 print ''''' 
Usage: 
%s <Dest_addr> <percent loss packages> <max round trip time> 
''' % (sys.argv[0]) 
try: 
 result = ping.quiet_ping(sys.argv[1], timeout=2, count=10, psize=64) 
 if int(result[0]) == 100: 
 print 'Critical - 宕机, 丢包率:%s%% | 报警阀值: >= %s%% 或 >=%s ms' % (result[0], int(sys.argv[2]), int(sys.argv[3])) 
 sys.exit(2) 
 else: 
 max_time = round(result[1], 2) 
 if int(result[0]) < int(sys.argv[2]) and int(result[1]) < int(sys.argv[3]): 
 print 'OK - 丢包率:%s%%, 最大响应时间:%s ms | 报警阀值: >= %s%% 或 >=%s ms' % (result[0], max_time, int(sys.argv[2]), int(sys.argv[3])) 
 sys.exit(0) 
 elif int(result[0]) >= int(sys.argv[2]) or int(result[1]) >= int(sys.argv[3]): 
 print 'Warning - 丢包率:%s%%, 最大响应时间:%s ms | 报警阀值: >= %s%% 或 >=%s ms' % (result[0], max_time, int(sys.argv[2]), int(sys.argv[3])) 
 sys.exit(1) 
 else: 
 print 'Unknown' 
 sys.exit(3) 
except IndexError: 
 help() 
 sys.exit(3)