[Python-ideas] Arguments to exceptions

[Greg Ewing]

Terry Reedy wrote:
> Attaching a *constant* string is very fast, to the 
> consternation of people who would like the index reported.

Seems to me that storing the index as an attribute would help
with this. It shouldn't be much slower than storing a constant
string, and formatting the message would be deferred until
it's needed, if at all.

-- 
Greg