Hi, I'm having a problem with domish.Element, here it is (isolated) : from twisted.xish import domish from copy import deepcopy invitation = domish.Element(('jabber:client', 'message')) invitation2 = deepcopy(invitation) gives me : Traceback (most recent call last): File "modules/isolated_bug.py", line 5, in ? invitation2 = deepcopy(invitation) File "/usr/lib/python2.3/copy.py", line 198, in deepcopy rv = reductor(2) TypeError: 'NoneType' object is not callable Python version : Python 2.3.4 (#2, Jul 5 2004, 09:15:05) [GCC 3.3.4 (Debian 1:3.3.4-2)] on linux2 Type "help", "copyright", "credits" or "license" for more information. Hope this is enough for a diagnostic. Thanks a lot for the good work, -- Arthur LUTZ LOGILAB, Paris (France). http://www.logilab.com http://www.logilab.fr http://www.logilab.org Advanced Computing - Knowledge Management - Artificial Intelligence