python访问ftp站点，上传文件 #FTP put file#!/usr/bin/python  # -*- coding: utf-8 -*-  import ftplibimport os  import socket  import sys  HOST = '10.17.15.26'  DIRN = '/file_yes'  FILE = 'put.txt'  host1 = '10.16.66.168'port1 = 15245def main():      try:          f = ftplib.FTP(HOST)      except (socket.error, socket.gaierror):          print 'ERROR:cannot reach " %s"' % HOST          return      print '***Connected to host "%s"' % HOST       try:          f.login('FTP002','#######')      except ftplib.error_perm:          print 'ERROR: cannot login FTP'          f.quit()          return      #print f.getwelcome()    print '*** Logged in as "FTP"'    print f.getwelcome()    try:          f.cwd(DIRN)      except ftplib.error_perm:          print 'ERRORL cannot CD to "%s"' % DIRN          f.quit()          return      print '*** Changed to "%s" folder' % DIRN            try:           f.dir()    except ftplib.error_perm:          print 'ERRORL list "%s" info' % DIRN          f.quit()          return      print '*** This is "%s" folder info' % DIRN              try:         buf_size = 1024        f.storbinary('stor %s' %FILE, open(FILE, 'rb'),buf_size)      except ftplib.error_perm:          print 'ERROR: cannot read file "%s"' % FILE          os.unlink(FILE)      else:          print '*** Uploaded "%s" to CWD' % FILE      f.quit()    returnif __name__ == '__main__':      main()