Python通过paramiko远程下载Linux服务器上的文件

#!/usr/local/bin/python
# encoding:utf-8

import paramiko
import os

HOST_IP='59.110.12.72'
REMOTE_PATH='/proc'
REMOTE_FILENAME='meminfo'
LOCAL_PATH='./proc'
USERNAME='niu'
PASSWORD='123456'

def remote_scp(host_ip,remote_path,local_path,file_name,username,password):
    t = paramiko.Transport((host_ip,22))
    t.connect(username=username, password=password) # 登录远程服务器
    sftp = paramiko.SFTPClient.from_transport(t)  # sftp传输协议
    src = remote_path+'/'+file_name
    des = local_path+'/'+file_name
    sftp.get(src,des)
    t.close()


if not os.path.isdir(LOCAL_PATH):
    os.makedirs(LOCAL_PATH)
if not os.path.isfile(LOCAL_PATH+'/'+REMOTE_FILENAME):
    fp=open(LOCAL_PATH+'/'+REMOTE_FILENAME,'w')
    fp.close()

remote_scp(HOST_IP,REMOTE_PATH,LOCAL_PATH,REMOTE_FILENAME,USERNAME,PASSWORD)