Invert slice in python

Question

Is there any simple way to invert a list slice in python? Give me everything except a slice? For example:

Given the list a = [0,1,2,3,4,5,6,7,8,9] I want to be able to extract [7,8,9,0,1,2] i.e. everything but a[3:7].

Thinking about it logically, I thought that a[-3:3] would give me what I want, but it only returns an empty list.

I am preferring a solution which will work for both python 2 and 3

Answer 1

Slices don't wrap like that, but a[-3:] + a[:3] would give you that list.