[BangPypers] nested list question

[Pradip P Caulagi]

On Tue, Jul 13, 2010 at 02:30:41PM -0000, Vikram  wrote:
> Suppose you have two nested lists, X and Y. 
> A sample element of X is: 
> ['NM_032291', '67000041', '67000051', 'chr1', '+']
> 
> Another sample element of X is:
> ['NM_001097', '51183080', '51183635', 'chr22', '+']
> 
> 
> A sample element of Y is:
> ['chr1', '67000046']
> 
> Another sample element of Y is:
> ['chrY', '59033300']
> 
> The objective is to identify whether the second element of an element
> of Y (e.g. 67000046) lies between the the second and third elements of
> an element of X (e.g. 67000041 and 67000051).
> 
> Eventually, one should end up with a modified version of Y, let us say
> modY, which is a filtered version of Y in which the second element of
> an element of modY is contained within the second and third elements
> of an element of X.
> 
> Any suggestions on how i should be going about implementing this?
> 
What have you tried?