#!/usr/bin/env python 
# coding:UTF-8 
import time 
import pexpect 
import smtplib 
from email.mime.text import MIMEText 
mail_host = "smtp.163.com"    #定義smtp服務(wù)器 
mail_to = "baojingtongzhi@163.com" #郵件收件人 
mail_from = "monitor@163.com"   #郵件發(fā)件人 
mail_pass = "123456"      #郵件發(fā)件人郵箱密碼 
while True: 
  def Mail(error_ip): 
    date = time.strftime('%Y-%m-%d %H:%M:%S') 
    msg = MIMEText("%s Ping %s failed from 255.252." % (date, error_ip)) 
    msg['Subject'] = "Ping %s failed." % error_ip  #定義郵件主題 
    msg['From'] = mail_from 
    msg['To'] = mail_to 
    try: 
      s = smtplib.SMTP()        #創(chuàng)建一個(gè)SMTP()對(duì)象 
      s.connect(mail_host, "25")      #通過connect方法連接smtp主機(jī) 
      s.starttls()          #啟動(dòng)安全傳輸模式 
      s.login(mail_from,mail_pass)     #郵箱賬戶登錄認(rèn)證 
      s.sendmail(mail_from, mail_to, msg.as_string()) #郵件發(fā)送 
      s.quit()   #斷開smtp連接 
    except Exception, e: 
      print str(e) 
  ip_list = ['192.168.18.10', 
    '192.168.18.11', 
    '192.168.18.12'] 
  for ip in ip_list: 
    ping = pexpect.spawn('ping -c 1 %s' % ip) 
    check = ping.expect([pexpect.TIMEOUT,"1 packets transmitted, 1 received, 0% packet loss"],2)  #2代表超時(shí)時(shí)間 
    if check == 0: 
      Mail(ip) 
      print "Ping %s failed,Have email." % ip 
    if check == 1: 
      print "Ping %s successful." % ip 
  print "Sleep 10s..."
  time.sleep(10)
#直接運(yùn)行
# python ping.py 
Ping 192.168.18.10 successful.
Ping 192.168.18.11 successful.
Ping 192.168.18.12 successful.
Sleep 10s...