Using Python to implement sftp upload and download function code sharing

高洛峰
Release: 2017-03-16 09:19:32
Original
1551 people have browsed it

Python中可以使用paramiko模块中的sftp登陆远程主机,实现上传和下载功能。接下来通过本文给大家介绍Python使用sftp实现上传和下载功能,需要的朋友参考下

1.功能实现

根据输入参数判断是文件还是目录,进行上传和下载

本地参数local需要与远程参数remote类型一致,文件以文件名结尾,目录以\结尾

上传和下载的本地和远程目录需要存在

异常捕获

2.代码实现


#!/usr/bin/python
# coding=utf-8
import paramiko
import os
def sftp_upload(host,port,username,password,local,remote):
  sf = paramiko.Transport((host,port))
  sf.connect(username = username,password = password)
  sftp = paramiko.SFTPClient.from_transport(sf)
  try:
    if os.path.isdir(local):#判断本地参数是目录还是文件
      for f in os.listdir(local):#遍历本地目录
        sftp.put(os.path.join(local+f),os.path.join(remote+f))#上传目录中的文件
    else:
      sftp.put(local,remote)#上传文件
  except Exception,e:
    print('upload exception:',e)
  sf.close()
def sftp_download(host,port,username,password,local,remote):
  sf = paramiko.Transport((host,port))
  sf.connect(username = username,password = password)
  sftp = paramiko.SFTPClient.from_transport(sf)
  try:
    if os.path.isdir(local):#判断本地参数是目录还是文件
      for f in sftp.listdir(remote):#遍历远程目录
         sftp.get(os.path.join(remote+f),os.path.join(local+f))#下载目录中文件
    else:
      sftp.get(remote,local)#下载文件
  except Exception,e:
    print('download exception:',e)
  sf.close()
if name == 'main':
  host = '192.168.1.2'#主机
  port = 22 #端口
  username = 'root' #用户名
  password = '123456' #密码
  local = 'F:\\sftptest\\'#本地文件或目录,与远程一致,当前为windows目录格式,window目录中间需要使用双斜线
  remote = '/opt/tianpy5/python/test/'#远程文件或目录,与本地一致,当前为linux目录格式
  sftp_upload(host,port,username,password,local,remote)#上传
  #sftp_download(host,port,username,password,local,remote)#下载
Copy after login

3.总结

以上代码实现了文件和目录的上传和下载,可以单独上传和下载文件,也可以批量上传和下载目录中的文件,基本实现了所要的功能,但是针对目录不存在的情况,以及上传和下载到多台主机上的情况,还有待完善。

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