pairs from a list

[Paddy]

On Jan 22, 3:20 am, Alan Isaac <ais... at american.edu> wrote:
> I want to generate sequential pairs from a list.
<<snip>>
> What is the fastest way? (Ignore the import time.)
1) How fast is the method you have?
2) How much faster does it need to be for your application?
3) Are their any other bottlenecks in your application?
4) Is this the routine whose smallest % speed-up would give the
largest overall speed up of your application?

- Paddy.