python实现ftp上传下载

#!/usr/bin/python3

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

from ctypes import *

import os

import sys

import ftplib

import time

today = time.strftime('%Y%m%d',time.localtime(time.time()))

ip = '192.168.8.253'

username = 'anonymous'

password = 'anonymous'

class myFtp:

    ftp = ftplib.FTP()

    ftp.set_pasv(False)

    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):  #下载指定目录下的指定文件

        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 True

    #从本地上传文件到ftp

    def uploadfile(self, remotepath, localpath):

      bufsize = 1024

      fp = open(localpath, 'rb')

      ftp.storbinary('STOR ' + remotepath, fp, bufsize)

      ftp.set_debuglevel(0)

      fp.close()

    def close(self):

        self.ftp.quit()

if __name__ == "__main__":

    ftp = myFtp(ip)

    ftp.Login(username, password)

    if len(sys.argv) == 3:

        ftp.DownLoadFile(sys.argv[1],sys.argv[2])

        #ftp.uploadfile(sys.argv[1],sys.argv[2])

    ftp.close()

    print("ok!")