Verify URL before using urlparse module?

[Gustaf Liljegren]

I'm a happy user of the urlparse module. Only problem so far is that 
strange things happen when I send non-URL strings, like "thisisnotaurl" to 
it. I guess I need some error handling to test if the URL is a URL before 
sending it to urlparse. Best of course, would be if urlparse could do this 
by itself, but I'm not sure if or how that's working.

Regards,

Gustaf Liljegren