On Jul 22, 3:10 pm, konstantin <konstantin.seliva... at gmail.com> wrote: > some_string[i:j:k] > What does it mean? i = start position, j = end position, k = step size >>> s = "ABABABABABABAB" >>> s[0:6:2] 'AAA' >>> s = "ABCABCABCABCABC" >>> s[0:6:3] 'AA' Hope this helps. - alex23