Planet aggregator and embedded videos

I've been trying to get the Planet aggregator to display embedded video on the page in its output. Youtube videos from a Wordpress feed look ok, but <object> tags from my Drupal feed get mangled for some reason.

Here's what I've discovered so far:

First of all, to allow embedded objects to be displayed you need to edit both planet/sanitize.py and planet/feedparser.py, and add 'object', 'media', 'embed' to the acceptable_elements array. That does the trick for youtube videos coming in a Wordpress rss feed (wp-rss2.php), where the content is passed as CDATA inside a <content:encoded> tag.

From Drupal the content is passed in a <description> tag, and at line 905 of Planet's __init__.py is identified as String content and passed to sanitize.HTML. This function then does some funky stuff popping elements onto and off a stack, and messes everything up, moving the object's closing tag up before the <param> tags. With the Wordpress feed the <object> code is inside some kind of array around line 905, so it doesn't get passed through the sanitizor. I've tried commenting line 905 out, to stop it from sanitizing the code. It means that the page just potentially became a crack smoker, but that's life.