#_*_coding:utf8_*_from multiprocessing import Process, Poolimport paramikoimport sys,os host_list = (    ('192.168.1.91', 'root','654321',123456),    ('192.168.1.93', 'root', '654321',123456), ) s = paramiko.SSHClient()  #绑定实例s.load_system_host_keys()   #加载本机HOST主机文件s.set_missing_host_key_policy(paramiko.AutoAddPolicy())def ssh_run(host_info):    ip,username,password,newpassword = host_info    s.connect(ip,22,username,password,timeout=5)   #连接远程主机    stdin,stdout,stderr=s.exec_command('echo %s | passwd --stdin root'%(newpassword))    #stdin,stdout,stderr=s.exec_command('df')    cmd_result = stdout.read(),stderr.read()      #读取命令结果    print '\033[32;1m-------------%s-----------\033[0m' % ip, username    for line in cmd_result:         print line,  p = Pool(processes=2) result_list = [] for h in  host_list:    result_list.append(p.apply_async(ssh_run, [h,])  )         for res in result_list:    res.get()s.close()