Pythonftpの相互作用

# -*- coding: utf-8 -*-
'''

@file: processor.py
@time: 2020/10/13 10:35 
@desc: 
'''
import time
import os
import sys
import ftplib


class myFtp:
    ftp = ftplib.FTP()

    def __init__(self, host, port=21):
        self.ftp.connect(host, port)

    def Login(self, user, passwd):
        self.ftp.login(user, passwd)
        print(self.ftp.welcome)

    def DownLoadFile(self, LocalFile, RemoteFile):  # 下载当个文件
        file_handler = open(LocalFile, 'wb')
        print(file_handler)
        # self.ftp.retrbinary("RETR %s" % (RemoteFile), file_handler.write)#接收服务器上文件并写入本地文件
        self.ftp.retrbinary('RETR ' + RemoteFile, file_handler.write)
        file_handler.close()
        return True

    def DownLoadFileTree(self, LocalDir, RemoteDir):  # 下载整个目录下的文件
        print("remoteDir:", RemoteDir)
        if not os.path.exists(LocalDir):
            os.makedirs(LocalDir)
        self.ftp.cwd(RemoteDir)
        RemoteNames = self.ftp.nlst()
        print("RemoteNames", RemoteNames)
        for file in RemoteNames:
            Local = os.path.join(LocalDir, file)
            print(self.ftp.nlst(file))
            if file.find(".") == -1:
                if not os.path.exists(Local):
                    os.makedirs(Local)
                self.DownLoadFileTree(Local, file)
            else:
                self.DownLoadFile(Local, file)
        self.ftp.cwd("..")
        return

    def close(self):
        self.ftp.quit()




if __name__ == "__main__":
    host = "xxx"
    username = "taasftp"
    password = "taasftp"
    ftp = myFtp(host)
    ftp.Login(username, password)
    ftp_file_path = "/comparison/face"  # FTP目录
    dst_file_path = "./dataset/face"  # 本地目录
    print('开始下载')
    s = time.time()
    ftp.DownLoadFileTree(dst_file_path, ftp_file_path)  # 从目标目录下载到本地目录d盘
    ftp.close()
    print('结束下载,用时: {}'.format(time.time() - s))  # 结束下载,1W张,用时: 2528.5210452079773