how to detect if a dictionary has been modified ?

[Steven D'Aprano]

On Sun, 23 Nov 2008 09:19:38 -0800, Glenn Linderman wrote:

> Interesting technique.  I must point out, though, that it doesn't
> indicate if a dict has been changed, only that potentially changing
> operations have been performed.
[...]
>  The above code would declare it has, but most people, when shown before
> and after copies of the dict, with declare it hasn't.

Oh I agree entirely. But I'm not going to do *all* the work for the 
original poster :)

-- 
Steven