1 #!/usr/bin/env python
 2 
 3 import ftplib
 4 import os
 5 import socket
 6 
 7 HOST='ftp.mozilla.org'
 8 DIRN='pub/mozilla.org/webtools'
 9 FILE='bugzilla-LATEST.tar.gz'
10 
11 def main():
12     try:
13         f=ftplib.FTP(HOST)
14     except (socket.error,socket.gaierror),e:
15         print 'ERROR: cannot reach "%s"' % HOST
16         return
17     print '*** Connected to host "%s"' % HOST
18 
19     try:
20         f.login()
21     except ftplib.error_prem:
22         print 'ERROR: cannot login anonymously'
23         f.quit()
24         return
25     print '*** Logged in as "anonymous"'
26 
27     try:
28         f.cwd(DIRN)
29     except ftplib.error_perm:
30         print 'ERROR: cannot CD to "%s"' % DIRN
31         f.quit()
32         return
33     print '*** Changed to "%s" folder' % DIRN
34 
35     try:
36         f.retrbinary('RETR %s' % FILE,
37                 open(FILE,'wb').write)
38     except ftp.error_perm:
39         print 'ERROR: cannot read file "%s"' % FILE
40         os.unlink(FILE)
41     else:
42         print '*** Downloaded "%s" to CWD' % FILE
43     f.quit()
44     return
45 
46 if __name__=='__main__':
47     main()