hello, I have a case where Transactional._unregister is called without Transactional._register being called, raising an exception in Transaction._unregister and then in ZODB.Transaction.Transaction.__del__, causing Zope to dump core when it is run as a daemon (because python notifies of the unhandled exception by writin to stderr) I have not yet found why (and how?) an object is Transactional._unregistered without being Transactional._registered before. (I even did not know about the existence of these methods!) But until I understand, this patch allow me to stay alive: --- Transactions.py.orig Thu Jul 20 09:58:00 2000 +++ Transactions.py Wed Jul 26 11:12:25 2000 @@ -45,7 +45,8 @@ self._v_registered = 1 def _unregister(self): - del self._v_registered + try: del self._v_registered + except: pass # From here down, override as you see fit... more to come when I have the time to figure out the problem. it might be a bug in zpatterns :-) regards, jephte.clain@univ-reunion.fr