ftp 下载 服客防火墙启用情况下 ftp被动模式的设置

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# -*- coding:utf-8 -*- import sys import io import socket socket.setdefaulttimeout(200)   #print(sys.stdout.encoding) #sys.stdout = io.TextIOWrapper(sys.stdout.buffer,encoding="gb2312")     ''' if sys.getdefaultencoding() != 'utf-8':     reload(sys) sys.setdefaultencoding('utf-8') '''     """ FTP常用操作 """ from ftplib import FTP import os import datetime import time ftp = FTP() ftp.set_pasv(False) #ftp.encoding = 'GB2312' ftp.set_debuglevel(0) ftp.connect(host = "123.206",port = 21) ftp.login("","") #return ftp   print(ftp)   buffer_size = 1024 print(ftp.nlst("rain10min"))#////ftplib.error_temp: 425 Unable to set up passive listening socket. print(ftp.dir()) #print(ftp.nslt("")) #print(ftp.dir("3")) print(ftp.nlst("rain10min"))   #枚举指定目录所有文件并下载   #存储路径 dataDir = "D:\\yb\\" ftpDataDir = ""   #设置接受缓冲区 #10240kb = 10M #102400kb = 100M #1024 000 kb = 1Gb bufsize = 1024   for i in ftp.nlst("rain10min"):     print('x')     print(i)     #本地存储文件路径及名称     dataDirFile = dataDir + i     #dataDirFile = i     print(dataDirFile)            #远程ftp文件路径及名称     ftpDataDirFile = ftpDataDir + i     print(ftpDataDirFile)     #print(type(os.path.getsize(dataDirFile)))           try:         if os.path.exists(dataDirFile):             dataDirFileSize = os.path.getsize(dataDirFile)             if dataDirFileSize == 0:                 os.remove(dataDirFile)             else:                 print("文件%s已经下载，大小%d" %(dataDirFile,dataDirFileSize))         else:             fpf = open(dataDirFile,'wb')             print("当前正在下载文件%s" % (dataDirFile))             ftp.retrbinary('RETR %s' %ftpDataDirFile,fpf.write,bufsize)             print(dataDirFile + "文件下载完成")             #if os.path.getsize(dataDirFile)                       '''         dataDirFileSize = os.path.getsize(dataDirFile)         #print("%s 文件大小为%d " % (dataDirFile,dataDirFileSize))         if dataDirFileSize == 0:             #print(dataDirFile+ "文件内容为空，下载失败的文件,需要重新下载")             #删除内容为空的文件，以便后面程序重新下载             os.remove(dataDirFile)             #print("删除错误下载空文件%s" % dataDirFile)         elif os.path.exists(dataDirFile):             print("%s文件已经存在" % dataDirFile)                           dataDirFileSize = os.path.getsize(dataDirFile)             print(dataDirFileSize)                           if dataDirFileSize == 0:                 #print(dataDirFile+ "文件内容为空，下载失败的文件,需要重新下载")                 #删除内容为空的文件，以便后面程序重新下载                       #elif int(os.path.getsize(dataDirFile)) == 0:             #print(dataDirFile)         else:             #pass                           fpf = open(dataDirFile,'wb')             ftp.retrbinary('RETR %s' %ftpDataDirFile,fpf.write,bufsize)             print(dataDirFile + "文件下载完成")         '''     except:         print("异常错误")                       '''     try:         pass     except:         pass     '''