searching a list of tuples

[Marcus Stojek]

Hi,

I have a (huge) list of tuples :
list=(float 1,float 2,float 3,int).

The list has been sorted with list.sort()
Now I have to slice the list in a way
that:

  a <= float 1 <= b

As I have to do this very often for different
values of a and b and the list is quite large
(100.000 tuples) I would like to do the slicing
as fast as possible.

Can anybody help me?

Tanks
Marcus