X,Y, Z Point coordinates / Data tree / GHpython

Hi there.

I`m trying to get the x,y,z point coordinates on a list of list using the GHpython script attached.

The only thing I've resolved so far  is to separate x,y,z as different items on a data tree. But when I try to get the 3 coordinates together for each item on list of lists the DataTree.Add(i,p) method doesn`t work at all.

Any Clue to keep working on this ??

Thanks !!

MC