A product, Zope 2.1.0b2 - when I try to add an instance, I get :- Error type: cPickle.PicklingError Error value:: Cannot pickle objects. Error Traceback: Traceback (innermost last): File /u2/home/rossl/zope21b/lib/python/ZPublisher/Publish.py, line 169, in publish File /u2/home/rossl/zope2/lib/python/ZODB/Transaction.py, line 237, in commit File /u2/home/rossl/zope2/lib/python/ZODB/Connection.py, line 325, in commit (Info: (('Products.foobar.foobar', 'foobar'), '\000\000\000\000\000\002\\\355', '')) cPickle.PicklingError: Cannot pickle objects. Any suggestions as to what sort of python misdemeanor might be responsible gratefully received? -- Dr Ross Lazarus Associate Professor and Sub-Dean for Information Technology Faculty of Medicine, A27, R126a, University of Sydney, Camperdown, NSW 2006, Australia Tel: (+61 2) 93514429 Mobile: +61414872482 Fax: (+61 2) 93516646 Email: rossl@med.usyd.edu.au http://www.health.usyd.edu.au/people/rossl.htm