[Python-Dev] Pre-PEP: Attribute Access Handlers v2
Fri, 21 Jul 2000 13:49:23 -0500
Gordon McMillan wrote:
> > Proposed Implementation
> > There is a new object called a computed attribute object. It
> > has three attributes: get, set, delete.
> raise InternalInconsistencyError
Good point. Here's a fix for that and something else I left out before.
There is a new object type called a computed attribute object.
Objects of this type have the following attributes:
name (e.g. XXX, not __attr__XXX__
method (pointer to a method object
In PyClass_New, methods of
the appropriate form will be detected and converted into objects
(just like unbound method objects). If there are any computed
attributes in an instance at all, a flag is set. Let's call
it "I_have_computed_attributes" for now. Derived classes inherit
the flag from base classes. Instances inherit the flag from
Paul Prescod - Not encumbered by corporate consensus
"Hardly anything more unwelcome can befall a scientific writer than
having the foundations of his edifice shaken after the work is
finished. I have been placed in this position by a letter from
Mr. Bertrand Russell..."
- Frege, Appendix of Basic Laws of Arithmetic (of Russell's Paradox)