input: 
  def print_divisors(num: int) -> str:
      """
      Takes a number from the user and prints all the divisors of the number.
  
      >>> print_divisors(12)
      'The divisors of 12 are: 1, 2, 3, 4, 6, 12'
      >>> print_divisors(15)
      'The divisors of 15 are: 1, 3, 5, 15'
      """
      divisors = []
      for i in range(1, num + 1):
          if num % i == 0:
              divisors.append(i)
      return 'The divisors of {} are: {}'.format(num, ', '.join(map(str, divisors)))
  
output:     divisors = []
      for i in range(1, num + 1):
          if num % i == 0:
              divisors.append(i)
      return 'The divisors of {} are: {}'.format(num, ', '.join(map(str, divisors)))