Zip on single element in nested sequence.

[rhubarbpieguy]

How do I create the list c=[2,3,4] from the list a=[[1,2,3],[2,3,4],[3,4,5]]? In other words, how do I create a list from element [1] of a list containing nested sequences?

I know b,c,d=zip(*a) produces b=[1,2,3], c=[2,3,4], and d=[3,4,5].  That works well, but I don't need b and d.  It seems I should be able to use zip(*a[1]) or something of the sort but I have no success.

This is a minor problem but I must be missing something obvious.

my code here