ftp下载目录下的文件

#!/usr/bin/python
# -*- coding:utf-8 -*-
# coding=utf-8
import paramiko
import os
import time
datenow = time.strftime("%Y%m%d")
def DownLoadFile(sftp, LocalFile, RemoteFile):  # 下载当个文件
    file_handler = open(LocalFile, 'wb')
    print(file_handler)
    sftp.get(RemoteFile, LocalFile)  # 下载目录中文件
    file_handler.close()
    return True


def DownLoadFileTree(sftp, LocalDir, RemoteDir):  # 下载整个目录下的文件
    if not os.path.exists(LocalDir):
        os.makedirs(LocalDir)
    for file in sftp.listdir(RemoteDir):
        print(file)
        Local = os.path.join(LocalDir, file)
        Remote = os.path.join(RemoteDir, file)
        if file.find(".") == -1 :  # 判断是否是文件
            if not os.path.exists(Local):
                os.makedirs(Local)
            DownLoadFileTree(sftp, Local, Remote)
        else:  # 文件
            DownLoadFile(sftp, Local, Remote)
    return "complete"



if __name__ == '__main__':
    hostname = "183.**.***.***"
    port = 22
    username = "****"
    password = "****"
    sf = paramiko.Transport((hostname, port))
    sf.connect(username=username, password=password)
    sftp = paramiko.SFTPClient.from_transport(sf)

    list=['cust','daily','opposite','sale']
    for i in list:
        remote = '/data/sftp/lszd/' + datenow+ "/" +i+ "/" # 目标文件所在路径
        local = 'D:\\sftp\\'+i  # 存储路径
        print(local)
        print(remote)
        DownLoadFileTree(sftp,local,remote)#下载