id	summary	reporter	owner	description	type	status	priority	component	severity	resolution	keywords	cc	release
9802	TypeError: argument 3 must be string or read-only buffer, not None	falkb	eblot	On web interface page Admin-->Permission, try to add a new subject to a group. The result will be:\r\n\r\n{{{\r\nDatei "build/bdist.win32/egg/trac/web/main.py", Zeile 511, in _dispatch_request\r\n  dispatcher.dispatch(req)\r\nDatei "build/bdist.win32/egg/trac/web/main.py", Zeile 237, in dispatch\r\n  resp = chosen_handler.process_request(req)\r\nDatei "build/bdist.win32/egg/trac/admin/web_ui.py", Zeile 116, in process_request\r\n  path_info)\r\nDatei "build/bdist.win32/egg/trac/admin/web_ui.py", Zeile 357, in render_admin_panel\r\n  for action in perm.get_user_permissions(group):\r\nDatei "build/bdist.win32/egg/trac/perm.py", Zeile 372, in get_user_permissions\r\n  for perm in self.store.get_user_permissions(username) or []:\r\nDatei "build/bdist.win32/egg/trac/perm.py", Zeile 173, in get_user_permissions\r\n  subjects.update(provider.get_permission_groups(username) or [])\r\nDatei "build/bdist.win32/egg/ldapplugin/api.py", Zeile 128, in get_permission_groups\r\n  ldapgroups = self._get_user_groups(username)\r\nDatei "build/bdist.win32/egg/ldapplugin/api.py", Zeile 177, in _get_user_groups\r\n  if self._ldap.is_in_group(userdn, group):\r\nDatei "build/bdist.win32/egg/ldapplugin/api.py", Zeile 548, in is_in_group\r\n  cr = self._compare(groupdn, self.groupmember, userdn)\r\nDatei "build/bdist.win32/egg/ldapplugin/api.py", Zeile 656, in _compare\r\n  cr = self._ds.compare_s(dn, attribute, value)\r\nDatei "D:/bitnami-trac-0.12.2/python/Lib/site-packages/ldap/ldapobject.py", Zeile 266, in compare_s\r\n  return self.compare_ext_s(dn,attr,value,None,None)\r\nDatei "D:/bitnami-trac-0.12.2/python/Lib/site-packages/ldap/ldapobject.py", Zeile 253, in compare_ext_s\r\n  msgid = self.compare_ext(dn,attr,value,serverctrls,clientctrls)\r\nDatei "D:/bitnami-trac-0.12.2/python/Lib/site-packages/ldap/ldapobject.py", Zeile 250, in compare_ext\r\n  return self._ldap_call(self._l.compare_ext,dn,attr,value,RequestControlTuples(serverctrls),RequestControlTuples(clientctrls))\r\nDatei "D:/bitnami-trac-0.12.2/python/Lib/site-packages/ldap/ldapobject.py", Zeile 100, in _ldap_call\r\n  result = func(*args,**kwargs)\r\n}}}	defect	new	normal	LdapPlugin	normal				0.11