ftp retrlines with re...

[isabellknauer at googlemail.com]

Hey!
Ive been working on an application quite some time now and i wanted to
include something to let the user load a new version. i therefore
tried to include this here:

from ftplib import FTP
import string,re


 def handleDownload(block):
    processfile.write(block)
    print ".",

 def load_new_version(old_version):
    host='host.bla'
    user='usr_ftp_76512'
    password='45mhBLl3lXRX.332'
    account='usr_ftp_76512'
    download=''
    directory = 'htdocs'
    server = FTP(host)
    server.login(user,password,account)
    server.cwd(directory)
    filelist=server.retrlines('LIST')
#okay this works :logged into the ftpserver,changed dir and now have a
#string that tells the files like this:
#-rw-r--r--   1 usr_ftp_76512 ftpgroup    14454 Dec  5 14:10
Pict5.2.2.jpg
#-rw-r--r--   1 usr_ftp_76512 ftpgroup    16174 Dec  5 12:37 Picture
3.jpg
#-rw-r--r--   1 usr_ftp_76512 ftpgroup    14139 Dec  5 12:38 Picture
6.jpg
#-rw-r--r--   1 usr_ftp_76512 ftpgroup    42713 Dec  5 12:38 Picture
7.jpg
#226 Transfer complete.
    print filelist
    files=re.findall(' .{2,20}[.][a-z]{3,3}', filelist,re.I|re.S)
#the dot means every char, because of the flag re.S
# re.I ignores case
#{2,20} this means 2 to twenty of the char that is before it
#heres the problem... if you copy the output and put it into a string
he
#finds all the files with findall, but not inside here... and i dont
get why
#help:(
    print files
    for file in files:

        number=re.findall('pict([0-9])[.]([0-9])[.]?
([0-9]?)',file,re.I)
        version=100*int(number[0][0])+ 10*int(number[0][1])+ int(number
[0][2])
        if version >old_version:
            print version
            print old_version
            old_version=version
            download=file
    if download :
       processfile = open(download, 'wb')
       server.retrbinary('RETR ' + download, handleDownload)
       processfile.close()
       server.close()
       return True
    else:
       server.close()
       return False
load_new_version(201)

#greetz