input: Write a function to generate a random password containing 8 characters which can be numbers, letters, or special characters. If no input is given, the function should return the generated password.
  def generate_password():
   password_characters = string.ascii_letters + string.digits + string.punctuation
   password = ''.join(random.choice(password_characters) for i in range(8))
   return password
  
  assert len(generate_password()) == 8
  assert any(char.isdigit() for char in generate_password()) == True
  assert any(char.isalpha() for char in generate_password()) == True
  assert any(char in string.punctuation for char in generate_password()) == True
output: def generate_password():
      import random
      import string
      password_characters = string.ascii_letters + string.digits + string.punctuation
      password = ''.join(random.choice(password_characters) for i in range(8))
      return password