On Tue, Jun 7, 2011 at 10:40 AM, Eric <eric.won...@gmail.com> wrote: > Hello, > > Is there a library or regex that can determine if a string is a fqdn > (fully qualified domain name)? I'm writing a script that needs to add > a defined domain to the end of a hostname if it isn't already a fqdn > and doesn't contain the defined domain.
One reliable way to test would be to do a whois check on the name. If it comes up with something, it's fully qualified. http://code.google.com/p/pywhois/ Alternatively, if all you want is a simple syntactic check, and if you can assume that the name is already a valid domain name (no weird characters, etc), then you can simply divide it on the last dot and see if the last part is a recognized TLD. A partial list of TLDs can be found here: http://data.iana.org/TLD/tlds-alpha-by-domain.txt There are other TLDs too, including .localhost and .test, which you can probably ignore. Chris Angelico -- http://mail.python.org/mailman/listinfo/python-list
