List slicing

[Alex Martelli]

Uwe C. Schroeder wrote:

> 
> Hi guys,
> 
> is there a slicing operation on nested lists ?

Slicing is applicable to any list, nested or otherwise, but it
does not do what you would like it to do here:-).

> i.e.
>  list=[[1,2,3],[1,2,3],[1,2,3]]

Avoid naming a variable the same as the type, as that will
hide the type and make it unavailable.  Call it 'alist'...:-)

> the result of the operation should give [1,1,1] (or [2,2,2] :-))

[ sublist[0] for sublist in alist ]

etc.


Alex