I've released a 1.1 update to this library (and replaced the attachment in the first post).

The only change this makes: it now uses xkcd's built-in JSON interface rather than the RSS feed to get the latest comic number. This is good for two reasons:

1. It removes the third-party dependency (you now only need Python 2.x)
2. It stops the script from breaking when the RSS contains things other than comics in it (as it occasionally does).

Cool to hear. Is it less intensive on their server, too? Also by different stuff do you mean for example XKCD #404?

Well, I'm not sure how more/less intensive it is on their server. I don't know how more or less intensive it is to access JSON or an RSS feed.

As for "different stuff"- no, not like 404, but sometimes they post information about their site store or other miscellaneous news in the RSS as opposed to new comics.