[Python-Dev] Bad interaction of __index__ and sequence repeat

[David Hopwood]

Martin v. Löwis wrote:
> Travis Oliphant wrote:
> 
>>I say it's a bug that should be fixed.  Don't clear the error, raise it.
> 
> Several people have said this, but I don't think it can work.
> 
> If you raise an OverflowError in __index__, the slicing code cannot know
> whether this meant as overflow or underflow (in a signed sense).

Why not use IndexError for an underflow, and OverflowError for an overflow?

-- 
David Hopwood <david.nospam.hopwood at blueyonder.co.uk>