checking length in python code example

Example 1: how to find length of number in python

len(str(133))

Example 2: number length python

number_length =  lambda s: len(str(s)) #number length without recursion

#number length with recursion
numlen = 1
def num_len(s):
  if s > 9:
    numlen += 1
  else:
    s = numlen
    numlen = 0
    return s
  return num_len(s//10)