Automatic debugging of copy by reference errors?

[Fredrik Lundh]

Niels L Ellegaard wrote:


> I wanted  a each object to know whether or not it was being referred to
> by a living object, and I wanted to warn the user whenever he tried to
> change an object that was being refered to by a living object.  As far
> as I can see the garbage collector module would allow to do som

*all* objects in Python are referred to by "living" objects; those that 
don't are garbage, and are automatically destroyed sooner or later.

(maybe you've missed that namespaces are objects too?)

</F>