On Jun 6, 2011, at 8:40 PM, Eric 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. The ones here served me very well: http://pyxml.cvs.sourceforge.net/viewvc/pyxml/xml/xml/Uri.py?revision=1.1&view=markup bye Philip