function attributes are like function objects

[Fredrik Lundh]

Scottie wrote:
> The dictionary (a in your example) will force a reference to the function to
> exist, thus preventing it from being collected.

That dictionary sits inside a *class* object.   That class
also holds references to the function objects, as well as
to the dictionary.  No cycles here.

> > - requires one dictionary per type of method attribute.

Which is a problem only if you have more attributes than
methods in your classes, of course.  Not very likely.

(and easy to solve with a global attribute dictionary)

> - prevents funtions referenced from being garbage collected.

Which is a problem only if you spend a lot of time adding and
removing methods from classes.  Not very likely.

(and easy to solve with a weak dictionary, or by changing
to a better design)

Cheers /F