Seems it hasn't been updated in a while, and lacks support for things like sy:updateFrequency.
+1
A:
feedparser trunk in it's SVN repository was last updated a few days ago: feedparser.py You can try it to see if it fits your needs, or even look in it's source to see if it can be extended to support what you need...
I also found this one but I have never used it...
hope it helps.
maid450
2010-05-24 02:44:02