python ftplib

功能：下载vsftpd服务器端文件至本地，并删除服务器端文件。

文件： config.py  配置文件  ftpdown.py 主程序

ftpdown.py代码如下

# encoding:utf-8
import os
import sys
from config  import *
from ftplib import FTP

class FtpDownloadCls:
    def __init__(self, ftpserver, port, usrname, pwd):
        self.ftpserver = ftpserver 
        self.port = port          
        self.usrname = usrname  
        self.pwd = pwd          
        self.ftp = self.ftpConnect()
    def ftpConnect(self):
        ftp = FTP()
        try:
            ftp.connect(self.ftpserver, self.port)
            ftp.login(self.usrname, self.pwd)
        except:
            raise IOError('ftp连接失败!!!')
        else:
            print(ftp.getwelcome())
            return ftp
    def downloadFile(self, ftpfile, localfile):
        bufsize = 1024
        with open(localfile, 'wb') as fid:
            self.ftp.retrbinary('RETR {0}'.format(ftpfile), fid.write, bufsize)
        return True
    def downloadFiles(self, ftpath, localpath,downlist,downlen):
        print('ftp path: {0}
local path: {1}
'.format(ftpath,localpath))
        if not os.path.exists(localpath):
            os.makedirs(localpath)
        self.ftp.cwd(ftpath)
      
        for file in self.ftp.nlst():
            if file.endswith(".zip") and len(downlist) < downlen:
                try:
                    print ("下载第{0}/{1}个文件：{2} ,状态：".format(len(downlist)+1,downlen,file),end='')
                    self.downloadFile(file,os.path.join(localpath, file))
                    downlist.append(file)
                except Exception as err:
                    print (err)
                else:
                    print ("successful")
        print ("
下载完成，开始删除服务端文件
")
        return True
    def ftpdelfile(self,downlist):
        for filedel in downlist:
            try:
                print ("删除第{0}/{1}个文件：{2} ,状态：".format(downlist.index(filedel)+1,downlen,filedel),end='')
                self.ftp.delete(filedel)            
            except Exception as err:
                print (err)
            else:
                print ("successful")

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

if __name__ == '__main__':
    Ftp = FtpDownloadCls(ftpserver, port, usrname, pwd)
    Ftp.downloadFiles(ftpath, localpath,downlist,downlen)
    Ftp.ftpdelfile(downlist)
    Ftp.ftpDisConnect()

config.py代码如下

#ftp服务器参数
ftpserver = '192.168.56.101' 
port = 21                                 
usrname = 'doufy'      
pwd = 'doufy'
#ftp数据目录       
ftpath = '/mnt/ftpdata'
#下载至本地目录
localpath = 'D:/11111/'               
downlist=[]
#下载多少压缩包
downlen=3