a[start:stop] # items start through stop-1 a[start:] # items start through the rest of the array a[:stop] # items from the beginning through stop-1 a[:] # a copy of the whole array
>>> a=[1,2,3,4,5] >>> a[1:3] [2, 3] >>> a[:3] [1, 2, 3] >>> a[2:] [3, 4, 5] >>> s='computer' >>> s[:3] 'com' >>> s[3:6] 'put'