Python自动化连接iPhone SSH

import os
import sys
import shutil
import platform
import traceback
from optparse import OptionParser
import subprocess
import commands
import paramiko
import time 
reload(sys)
sys.setdefaultencoding('utf8')
import re

def connect():  
    ssh = paramiko.SSHClient()  
    ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())  
    try:  
        ssh.connect(hostname = hostname,username=username,password=password,allow_agent=True,timeout = 5)  
        return ssh  
    except:     
        print "********************连接失败*********************"
        return None 

def main():
    # 1.连接ssh
    paramiko.util.log_to_file('paramiko.log')
    ssh = connect()

    stdin, stdout, stderr = ssh.exec_command("ls /var/containers/Bundle/Application")
    applicationList = stdout.readlines()

if __name__ == '__main__':

    hostname = '192.168.18.146'
    username = 'root'
    password = 'alpine'
    main()