indexes in string code example

Example 1: python index of string

string = "Hello World"
string_slice = string[1:10] # "ello Worl" (index 1 up to 10)
string_last_chars = string[-5:] # "World" (5th index from last to the end)
H = string[0] # "H"

Example 2: string index

s = 'Hello'
  len(s)   ## 5
  ## Chars are numbered starting with 0
  s[0]     ## 'H'
  s[1]     ## 'e'
  s[4]     ## 'o'  -- last char is at length-1
  s[5]     ## ERROR, index out of bounds