Right now I am using a list, and was expecting something like:
verts = list (1000)
Should I use array instead?
The first thing that comes to mind for me is:
verts = [None]*1000
But do you really need to preinitialize it?
Not quite sure why everyone is giving you a hard time for wanting to do this - there are several scenarios where you'd want a fixed size initialised list. And you've correctly deduced that arrays are sensible in these cases.
import array verts=array.array('i',(0,)*1000)
For the non-pythonistas, the
(0,)*1000 term is creating a tuple containing 1000 zeros. The comma forces python to recognise
(0) as a tuple, otherwise it would be evaluated as 0.
I've used a tuple instead of a list because they are generally have lower overhead.