[Python-Dev] Decimal & returning NotImplemented (or not)

[Neil Schemenauer]

On Tue, Mar 01, 2005 at 11:45:43PM +1000, Nick Coghlan wrote:
> Interesting. In that case, my other suggestion was to have raising 
> NotImplementedError from a special method be the equivalent of returning 
> NotImplemented (which makes life much easier for a class like Decimal which 
> has an internal method for doing the type conversion).

NotImplementedError has nothing to do with the NotImplemented
singleton.  It's unfortunate about the naming.  IMO, Decimal should
be returning NotImplemented instead of raising TypeError.  That
could be considered a bug but I'd file it under new functionality
for the purposes of backporting (i.e. fix it in 2.5 only).

  Neil