t = [0,1] print t print "t[0]=%d, t[1]=%d" % (t[0],t[1]) index = 2 while index < 17: t.append(index) print t index+=1 --------------------output----------------------------- $ python append.py [0, 1] t[0]=0, t[1]=1 [0, 1, 2] [0, 1, 2, 3] [0, 1, 2, 3, 4] [0, 1, 2, 3, 4, 5] [0, 1, 2, 3, 4, 5, 6] [0, 1, 2, 3, 4, 5, 6, 7] [0, 1, 2, 3, 4, 5, 6, 7, 8] [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11] [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12] [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13] [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14] [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15] [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]