At some point, feedparser changed in such a way that the parsed result retains a file resource; this causes the object to be unpicklable, and as a result, the caching mechanism in Pushl completely broke (with an error which was rather weird to diagnose).
Since the feed object was only retaining the feedparser structure to make some lazy-loading operations more convenient, it seemed better to just rewrite Feed to compute all of its properties up-front. As a side-effect, mf2 feeds are now handled more thoroughly.
At some point, feedparser changed in such a way that the parsed result retains a file resource; this causes the object to be unpicklable, and as a result, the caching mechanism in Pushl completely broke (with an error which was rather weird to diagnose).
Since the feed object was only retaining the feedparser structure to make some lazy-loading operations more convenient, it seemed better to just rewrite
Feedto compute all of its properties up-front. As a side-effect, mf2 feeds are now handled more thoroughly.