Thanks for sharing. One thing I did notice is that a few of the urls aren't current and it ends up getting the comic on the front page. A couple that I noticed:
Code:
(u"Larry Wright", u"http://www.gocomics.com/larrywright"),
(u"Grand Avenue", u"http://www.gocomics.com/grandavenue"),
I believe Grand Avenue should be,
Code:
(u"Grand Avenue", u"http://www.gocomics.com/grand-avenue")
If they change often it might be nice to parse a page of links to populate your feeds.