Coding comments/suggestions - first python script - sshd/ftpd blocking

[avinashc at yahoo.com]

If anyone is interested in a /etc/hosts.deny automatic update script
(Unix only) based on sshd/vsftpd attacks, here's a python script:
http://www.aczoom.com/tools/blockhosts/

This is a beta release, and my first attempt at Python coding.
Any comments, suggestions, pointers on using more common Python idioms
or example coding snippets, etc, welcome!

Thanks!