Pytnon FTP programming-ftplib Module

Pytnon FTP programming: Python comes with the ftplib module, which is used to upload and download FTP servers. It is very convenient and easy to use.

If we are familiar with the following:CodeWrite, how to download files on the FTP server to the local, how to upload files to the FTP server and batch FTP upload and download

You have mastered Python FTP programming.

 

 1   #  -*-Coding: UTF-8 -*-  
  2   #  Author: lhj588@live.cn  
  3   #  C_date: 2011.11.17  
 4   From Ftplib Import FTP
 5   Import Socket
 6   Import OS
 7   #  FTP server address  
  8 Ftp_server = '  127.0.0.1  ' 
 9   #  FTP server port  
  10 Ftp_port = '  5433  ' 
 11   #  FTP Server login name  
  12 User_name = '  Lhj588  ' 
13   #  FTP server logon Password  
  14 Password = '  888888  ' 
 15  
 16  
 17   """  
  18   Description: simple FTP file download.
  19  """ 
 20   Def Upload_ftp ():
 21 FTP = FTP ()
 22       #  Enable debug level 2 to display details  
  23 FTP. set_debuglevel (2)
 24       #  Connect to the FTP server  
  25 FTP. Connect (ftp_server, ftp_port)
 26       #  Log on to the FTP server. If you log on anonymously, use an empty string instead.  
  27 FTP. login (user_name, password)
 28  
 29       #  Display FTP server welcome information  
  30       Print FTP. getwelcome ()
 31  
 32 Dir_name ="  /Mysoft/tool/  " 
 33       #  Select the directory where the file to be uploaded is stored on the server  
  34 FTP. CWD (dir_name)
 35       #  Set the buffer block size  
  36 Buf_size = 1024
 37       # File Name  
  38 File_name = "  Test.jpg  " 
 39       #  Open a file locally in write mode  
  40 F_handler = open (file_name, '  WB  ' ). Write ()
 41      #  Receive files on the FTP server and write them locally  
  42 FTP. retrbinary ( "Retr  Test.jpg  " , F_handler, buf_size)
 43       #  Disable debugging  
  44 FTP. set_debuglevel (0)
 45       #  Exit FTP Server 
  46 FTP. Quit ()
 47   """  
  48   Description: simple FTP file upload.
  49   """ 
 50   Def Down_ftp ():
 51 FTP = FTP ()
 52       #  Enable debug level 2 to display details 
  53 FTP. set_debuglevel (2)
 54        #  Connect to the FTP server  
  55 FTP. Connect (ftp_server, ftp_port)
 56       #  Log on to the FTP server. If you log on anonymously, use an empty string instead.  
  57 FTP. login (user_name, password)
 58       Print FTP. getwelcome ()
 59 Dir_name = "  /Mysoft/tool/  " 
 60 FTP. CWD (dir_name)
 61 Buf_size = 1024
 62 File_name = '  Test.jpg  ' 
 63       #  Open a file locally in Read mode 
  64 F_handler = open (file_name, '  RB  ' )
 65       #  Upload files  
  66 FTP. storbinary ( 'Stor  Server_test.jpg  ' , F_handler, buf_size)
 67       # Disable debugging  
  68 FTP. set_debuglevel (0)
 69       #  Close file  
  70 F_handler.close ()
 71       #  Exit FTP Server  
  72 FTP. Quit ()
 73  
 74  """  
  75   Description: log on to the FTP site: ftp_server, and download the files in the filenametemplist list under the tardirtemp directory.
  76   Parameter: ftp_server: ftp site name user_name: FTP login name password: ftp Password
  77   Tardirtemp: the absolute directory of the downloaded object filenametemplist: List of full names of the files to be downloaded
  78   Returned value: Output: Success: 0 failed: 1
  79   """ 
 80   Def Down_ftp_file (ftp_server, user_name, password, tardirtemp, filenametemplist ):
 81       Try :
 82 FTP = FTP (ftp_server)
 83 FTP. login (user_name, password)
 84 FTP. CWD (tardirtemp)
 85 FTP. set_debuglevel (2)
 86       Except Socket. Error as errobj:
 87          Print   '  FPT error: % s can \'t download directory \'s file % s  ' % (Errobj, tardirtemp)
 88           Return False
 89  
 90       For Filename In Filenametemplist:
 91           Try :
 92              #  Open a file locally in write mode  
  93 Fp = open (filename, '  WB  ' )
 94               #  Download files from ftp  
  95 FTP. retrbinary ( '  RETR  ' + Filename, FP. Write, 1024)
 96           Except Ioerror as ioerr:
 97               Print   '  Error: [% s] % s  ' % (Ioerr. errno, ioerr. strerror)
 98               Return False
 99           Except FTP. all_errors as errobj:
 100               Print  '  FPT error: [% s] % s  ' % (Errobj, filename)
 101               If OS. Path. isfile (filename ):
 102 OS. System ( '  Rm-F  ' + Filename)
 103               Continue 
 104 FTP. Close ()
 105      Return True
 106  
 107   """  
  108   Description: test method.
  109   """ 
 110   If   _ Name __ = "  _ Main __  " :
111 Upload_ftp ()
 112 Down_ftp ()
 113 Down_ftp_file (ftp_server, user_name, password, "  /Mysoft/tool/  " ,[ '  1. jpg  ' , '  2. jpg  ' , '  3. jpg ' ])