[Python-ideas] ordered dict

[Terry Reedy]

"Josiah Carlson" <jcarlson at uci.edu> wrote in message 
news:20070421112051.63AB.JCARLSON at uci.edu...

>  Including a list of 'acceptable' classes as Terry has suggested would 
> work, but would
> generally be superfluous.

I realized that later.  The main use would be to improve the error message, 
or allow introspection ("Sdict, what can I put in you?").

tjr