number length python

1len(str(133))

1number_length =  lambda s: len(str(s)) #number length without recursion
2
3#number length with recursion
4numlen = 1
5def num_len(s):
6  if s > 9:
7    numlen += 1
8  else:
9    s = numlen
10    numlen = 0
11    return s
12  return num_len(s//10)