The security application seems to call for roles. I'll have to think about the schema example. But in any case, my question was poorly stated. I started out wanting to trap was the dynamic addition of attributes to class instances after initialization. While you responded to my later question as asked, the response does not I think take this context into account.
"Bruno Desthuilliers" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > As a side note : in Python, *all* attributes are "dynamically created". > ... Writing methods > within the class statement body makes things clearer, but is by no mean > mandatory: Point taken. And I understand it means that my talk of "after initialization" above contains some ambiguity. One last point. While I remain interested in examples of how "late" addition of attributes to class instances is useful, I must note that everyone who responded agreed that it has been a source of bugs. This seems to argue against a general ban on "locking" objects in some way, in some circumstances. Thanks! Alan -- http://mail.python.org/mailman/listinfo/python-list
