Posting this on the off chance that it saves someone the week of hair-tearing that I've just experienced... I sometimes find MonkeyPatches a convenient way to globally change behavior of zope or 3rd-party products. But I just discovered something very important: it's apparently NOT safe to "refresh" a MonkeyPatch-style product. I have a monkeypatch that works fine until I refresh it, then I get mysterious errors like "Object of type 'None' is not callable" with no indication in the traceback of what object is None or even what's trying to call it! In a debugging session, I explored everything near the end of the traceback and could not find any variables that are None. I know it's in there somewhere... If I restart zope, everything works fine. -- Paul Winkler http://www.slinkp.com Look! Up in the sky! It's THE BAT-FLAGELLA! (random hero from isometric.spaceninja.com)