Python快速多线程ping实现

#!/usr/bin/python
_coding:utf-8_
#
'''
名称：快速多线程ping程序
'''
import pexpect
import datetime
from threading import Thread
host=["192.168.1.1","192.168.1.123","192.168.2.1",
"192.168.1.1","192.168.1.123","192.168.2.1",
"192.168.1.1","192.168.1.123","192.168.2.1",
"192.168.1.1","192.168.1.123","192.168.2.1",
"192.168.1.1"]
report_ok=[]
report_error=[]
class PING(Thread):
    def init(self,ip):
        Thread.init(self)
        self.ip=ip
    def run(self):
        Curtime = datetime.datetime.now()

    #Scrtime = Curtime + datetime.timedelta(0,minute,0)
    #print("[%s]主机[%s]" % (Curtime,self.ip))
    ping=pexpect.spawn("ping -c1 %s" % (self.ip))
    check=ping.expect([pexpect.TIMEOUT,"1 packets transmitted, 1 received, 0% packet loss"],2)
    if check == 0:
        print("[%s] 超时 %s" % (Curtime,self.ip))

    elif check == 1:
        print ("[%s] %s 可达" % (Curtime,self.ip))

    else:
        print("[%s] 主机%s 不可达" % (Curtime,self.ip))


 
多线程同时执行
T_thread=[]
for i in host:
    t=PING(i)
    T_thread.append(t)
for i in range(len(T_thread)):
    T_thread[i].start()
#
print ("\n=========问题主机情况如下==========\n")
output(report_error)
print ("\n=========正常主机情况如下==========\n")
output(report_ok)
执行结果：
administrator@nagios:/win/pexpect$ ./ping.py
[2014-04-25 21:30:22.126981] 192.168.1.1 可达
[2014-04-25 21:30:22.148376] 192.168.1.1 可达
[2014-04-25 21:30:22.179846] 192.168.1.1 可达
[2014-04-25 21:30:22.203691] 192.168.1.1 可达
[2014-04-25 21:30:22.227696] 192.168.2.1 可达
[2014-04-25 21:30:22.134049] 超时 192.168.1.123
[2014-04-25 21:30:22.145610] 超时 192.168.2.1
[2014-04-25 21:30:22.157558] 超时 192.168.1.123
[2014-04-25 21:30:22.167898] 超时 192.168.2.1
[2014-04-25 21:30:22.197572] 超时 192.168.1.123
[2014-04-25 21:30:22.202430] 超时 192.168.2.1
[2014-04-25 21:30:22.215561] 超时 192.168.1.123
[2014-04-25 21:30:22.229952] 超时 192.168.1.1</pre>