Simple Model to Domain object creation

domain.py

def update_object(model, obj):
    for name, property in model.properties().iteritems():
        setattr(obj, name, property.get_value_for_datastore(model))

def to_object(model):
    def __eq__(self, other):
        return self.__dict__ == other.__dict__
    def __cmp__(self, other):
        return cmp(self.__dict__, other.__dict__)
    DomainType = type(model.kind(), (object,), dict(__eq__=__eq__, __cmp__=__cmp__))
    obj = DomainType()
    update_object(model, obj)
    return obj