input: 
  import random
  import string
  
  def generate_password():
      """Generate a random password consisting of 8 characters (numbers, letters, and special characters).
      >>> generate_password()
      '5X#q9!Kz'
      """
      password_characters = string.ascii_letters + string.digits + string.punctuation
      password = ''.join(random.choice(password_characters) for i in range(8))
      print(password)
  
  generate_password()
  
output:     return password