PythonFTP operation code sharing

This article mainly introduces the PythonFTP operation class, which enables automatic download, automatic upload, and recursive directory operations. For more information, see The code is as follows:

#! /Usr/bin/py2
#-*-Coding: UTF-8 -*-
# Encoding = UTF-8

'''''
Ftp automatic download, automatic upload script, Recursive directory operations
'''

From ftplib import FTP
Import OS, sys, string, datetime, time
Import socket

Class FtpClient:

Def _ init _ (self, host, user, passwd, remotedir, port = 21 ):
Self. hostaddr = host
Self. username = user
Self. password = passwd
Self. remotedir = remotedir
Self. port = port
Self. ftp = FTP ()
Self. file_list = []

Def _ del _ (self ):
Self. ftp. close ()

Def login (self ):
Ftp = self. ftp
Try:
Timeout = 60
Socket. setdefatimetimeout (timeout)
Ftp. set_pasv (True)
Ftp. connect (self. hostaddr, self. port)
Print 'connect Success % s' % (self. hostaddr)
Ftp. login (self. username, self. password)
Print 'login Success % s' % (self. hostaddr)
Debug_print (ftp. getwelcome ())
Failed T Exception:
Deal_error ("Connect Error or Login Error ")
Try:
Ftp. cwd (self. remotedir)
Except t (Exception ):
Deal_error ('change Directory error ')

Def is_same_size (self, localfile, remotefile ):
Try:
Remotefile_size = self. ftp. size (remotefile)
Except t:
Remotefile_size =-1
Try:
Localfile_size = OS. path. getsize (localfile)
Except t:
Localfile_size =-1
Debug_print ('lo: % d re: % d' % (localfile_size, remotefile_size ),)
If remotefile_size = localfile_size:
Return 1
Else:
Return 0

Def download_file (self, localfile, remotefile ):
If self. is_same_size (localfile, remotefile ):
Return
Else:
Pass
File_handler = open (localfile, 'WB ')
Self. ftp. retrbinary ('retr % s' % (remotefile), file_handler.write)
File_handler.close ()

Def download_files (self, localdir = './', remotedir = './'):
Try:
Self. ftp. cwd (remotedir)
Except t:
Return
If not OS. path. isdir (localdir ):
OS. makedirs (localdir)
Self. file_list = []
Self. ftp. dir (self. get_file_list)
Remotenames = self. file_list
For item in remotenames:
Filetype = item [0]
Filename = item [1]
Local = OS. path. join (localdir, filename)
If filetype = 'd ':
Self. download_files (local, filename)
Elif filetype = '-':
Self. download_file (local, filename)
Self. ftp. cwd ('..')

Def upload_file (self, localfile, remotefile ):
If not OS. path. isfile (localfile ):
Return
If self. is_same_size (localfile, remotefile ):
Return
File_handler = open (localfile, 'RB ')
Self. ftp. storbinary ('stor % s' % remotefile, file_handler)
File_handler.close ()

Def upload_files (self, localdir = './', remotedir = './'):
If not OS. path. isdir (localdir ):
Return
Localnames = OS. listdir (localdir)
Self. ftp. cwd (remotedir)
For item in localnames:
Src = OS. path. join (localdir, item)
If OS. path. isdir (src ):
Try:
Self. ftp. mkd (item)
Except t:
Debug_print ('directory Exists % s' % item)
Self. upload_files (src, item)
Else:
Self. upload_file (src, item)
Self. ftp. cwd ('..')

Def mkdir (self, remotedir = './'):
Try:
Self. ftp. mkd (remotedir)
Except t:
Debug_print ('directory Exists % s' % remotedir)

Def get_file_list (self, line ):
Ret_arr = []
File_arr = self. get_filename (line)
If file_arr [1] not in ['.', '...']:
Self. file_list.append (file_arr)

Def get_filename (self, line ):
Pos = line. rfind (':')
While (line [pos]! = ''):
Pos + = 1
While (line [pos] = ''):
Pos + = 1
File_arr = [line [0], line [pos:]
Return file_arr

Def debug_print (str ):
Print (str)

Def deal_error (e ):
Timenow = time. localtime ()
Datenow = time. strftime ('% Y-% m-% d', timenow)
Logstr = '% s Error: % s' % (datenow, e)
Debug_print (logstr)
File. write (logstr)
Sys. exit ()