Hi I have a class that extends 'Folder' and in this class i have a property of type dictionary. This dictionary has the following meaning: key = property id, value = a value (string or whatever). I want to use the catalog to index and search for this kind of objects. For each property I have an index in catalog. Let's say the dictionary is {'field1' : 'value of field 1', 'field2': 'value of field2'}. I also have 2 indexes named 'field1' and 'field2'. The problem is that when the catalog tries to catalog my object doesn't find the properties 'field1' and 'field2' for my object !!! So, I overwrite __getattr__ to tell it how to handle these properties def __getattr__(self, name): if name=='field1': return self.dict['field1'] elif name=='field2': return self.dict['field2'] else: -- How do I tell him to execute the default ????? I want to handle __getattr__ just for some special attributtes names 10x Dragos