x = y

[Bernie]

"José Luis Gallego" wrote:

> Hi all,
>
> I want to create a list x from a list y:
>
> y = [[1,2,3],[4,5,6]]
> x = y
>
> How do I change individual elements of x without changing y?
>

I think you need the copy module.

import copy
y = [[1,2,3],[4,5,6]]
x = copy.copy(y)

This will do for a shadow copy.  See documentation for the copy module
in Python
Library Reference for furthur details

> Thanks in advance,
>
> Jose Luis

Bernie