python paramiko模块 用密钥传输

VM_129_78_suse:/home/remote_paramiko # cat remote.py 
#!/usr/bin/env python

import paramiko

linux_cmd = "uptime"
#linux_cmd = "df -Th"


haiwai_ipaddress = {'14.215.177.39','114.215.177.139','14.205.177.39','114.215.77.39','14.215.177.30'}

for i in haiwai_ipaddress: 
    print i
    private_key = paramiko.RSAKey.from_private_key_file('/home/remote_paramiko/id_rsa')
    ssh = paramiko.SSHClient()
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
    ssh.connect(hostname=i, port=33263, username='root')
    stdin, stdout, stderr = ssh.exec_command(linux_cmd)
    result_out = stdout.readlines()
    for item in result_out:
        print('\033[1;32;40m')
        print item
        print('\033[0m')

    result_err = stderr.readlines()
    for item in result_err:
        print('\033[1;32;40m')
        print item
        print('\033[0m')

    ssh.close()