Can sessions store instance objects created by an external method? I'm running Python 2.3.4 (also happens with 2.3.2) I also get this error with Zope 2.7.0 I'm trying to save a simple instance in a session. The instance is created in an external method. I can't figure out why I get this error at the end of the transaction: Traceback (innermost last): Module ZPublisher.Publish, line 107, in publish Module Zope.App.startup, line 222, in commit Module ZODB.Transaction, line 236, in commit Module ZODB.Transaction, line 351, in _commit_objects Module ZODB.Connection, line 416, in commit - __traceback_info__: (('Products.Transience.TransientObject', 'TransientObject'), '\x00\x00\x00\x00\x00\x00\x00%', '') UnpickleableError: Cannot pickle <extension class Acquisition.ImplicitAcquirerWrapper at 409d7800> objects My external method looks like this:: def CreateInstanceItem(**kw): """Generate an instance item""" return InstanceItem(**kw) And the InstanceItem is:: class InstanceItem(object): __allow_access_to_unprotected_subobjects__=1 def __init__(self,**kw): """Initialize""" self.__dict__ = kw print "Created instance", self def __repr__(self): return repr(self.__dict__) I get output like this from bin/runzope Created instance {'dn': 'cn=brad,ou=sfiusa,ou=Public,dc=strader-ferris,dc=com', 'isManager': 1, 'preferences': None, 'firstname': 'Brad', 'orgname': 'Ross Video Ltd.', 'lastname': 'Clements', 'userid': 'bkc@murkworks.com', 'emailaddress': 'bkc@murkworks.com', 'user': bkc@murkworks.com, 'orgid': 'rv', 'isCustomer': 1, 'uid': 3.0} And my python script that calls the CreateInstanceItem looks like this:: I = container.CreateInstanceItem(userid=userid, orgid=orgid, dn=dn, firstname=firstname, lastname=lastname, user=user, # zope user uid=uid, # our internal uid preferences=preferences and None, emailaddress=emailaddress, orgname=orgname, isManager=isManager, isCustomer=isCustomer) SESSION['user_details'] = I It seems like the 'I' object is wrapped somehow. From this script I tried SESSION['user_details'] = I.aq_base But I got an attribute error, possibly that's a security thing hiding aq_base. Is there any way to store an instance in a SESSION? -- Brad Clements, bkc@murkworks.com (315)268-1000 http://www.murkworks.com (315)268-9812 Fax http://www.wecanstopspam.org/ AOL-IM: BKClements