feed auto-discovery

I added feed auto-discovery to CastSampler.com today. It was pretty easy using the feedfinder.py module, except for one small problem. Something about the timelimit() decorator in that module causes problems with django or mod_python (probably mod_python). When timelimit() is enabled, the finder either produces no URLs at all or an exception about “unmarshalling code objects” in a “restricted execution environment.” It works great in my development environment, which does not use mod_python. To get it to work in production, I disabled the timelimit() decorator. I hope that does not come back to bite me in the future.