konstantin wrote: > > Thanks! > It seems that negative step leads in reverse direction. > But logic isn't completely clear for me. >>>> s = '123456789' >>>> s[::-2] > '97531' > > but >>>> s[:-1:-2] > '' > though I expected something like '8642' > What did i missed? > > -- You need to *start* at the second from last index: s[-2::-2] Regards, John