Bracket operator, string slices, non-negative indices I and J

SLICE = STRING[I:J]

I and J non-negative, J should be greater than I:

SLICE consists of the (I+1)-eth up to and including the J-eth character

Example:

name = "Sandy"
firstSlice=name[0:3]
secondSlice=name[1:3]
print firstSlice, secondSlice

prints:

San an