python编程从一个ftp传输文件到另一个ftp服务器，python传输文件,import ftpli

python编程从一个ftp传输文件到另一个ftp服务器，python传输文件,import ftpli

import ftplib, sysftp1 = ftplib.FTP("127.0.0.1", "book", "bookpw")ftp1.cwd("/Dir")ftp2 = ftplib.FTP("www.holdenweb.com", "bookuser", "bookpw")ftp2.cwd("/public")sock1 = ftp1.transfercmd("RETR a.zip")sock2 = ftp2.transfercmd("STOR b.zip")flen = 0                           while 1:    block = sock1.recv(1024)           if len(block) == 0:                    break    flen += len(block)                 while len(block) > 0:                  sentlen = sock2.send(block)        block = block[sentlen:]    print "Transferred", flen, "bytes"sock1.close()sock2.close()ftp1.quit()ftp2.quit()