def fib(listOfValues): seqIsFib = True current = 2 while ((seqIsFib) and (current < len(listOfValues))): if ((listOfValues[current-1]+listOfValues[current-2]) != listOfValues[current]): seqIsFib = False current = current +1 if (seqIsFib): print "The sequence is a Fibonacci sequence" else: print "The sequence is NOT a Fibonacci sequence"