I'm trying to retrieve properties "nom" and "prenom" from a tweaked User object using : <dtml-with "REQUEST.AUTHENTICATED_USER"><dtml-with "getUser(id_resp_val)"><dtml-var nom><dtml-var prenom></dtml-with></dtml-with> where "id_resp_val'" contains the user login name.. I get the following error ... Error Type: AttributeError Error Value: __hash__ Traceback (innermost last): File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 214, in publish_module File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 179, in publish File C:\Program Files\Zope\lib\python\Zope\__init__.py, line 202, in zpublisher_exception_hook (Object: CatalogAware) File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 165, in publish File C:\Program Files\Zope\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: manage_editBonAchatForm) File C:\Program Files\Zope\lib\python\ZPublisher\Publish.py, line 102, in call_object (Object: manage_editBonAchatForm) File C:\Program Files\Zope\lib\python\App\special_dtml.py, line 120, in __call__ (Object: manage_editBonAchatForm) (Info: C:\Program Files\Zope\lib\python\Products\BonAchat/BonAchatEdit.dtml) File C:\Program Files\Zope\lib\python\DocumentTemplate\DT_String.py, line 502, in __call__ (Object: manage_editBonAchatForm) File C:\Program Files\Zope\lib\python\DocumentTemplate\DT_With.py, line 148, in render (Object: REQUEST.AUTHENTICATED_USER) File C:\Program Files\Zope\lib\python\DocumentTemplate\DT_With.py, line 133, in render (Object: getUser(id_resp_val)) File C:\Program Files\Zope\lib\python\DocumentTemplate\DT_Util.py, line 335, in eval (Object: getUser(id_resp_val)) (Info: getUser) File <string>, line 0, in ? File C:\Program Files\Zope\lib\python\AccessControl\User.py, line 666, in getUser (Object: RoleManager) File C:\Program Files\Zope\lib\python\ZODB\PersistentMapping.py, line 129, in get AttributeError: (see above) I must have made a mistake somewhere ....How can I do it ? Thanks by advance SY