extra

class Monster:
    '''A monster that has some attributes'''
    def __init__(self,health,energy):
        self.health = health
        self.energy = energy

        # private attributes
        self._id = 5

    # methods
    def attack(self,amount):
        print('The monster has attacked!')
        print(f'{amount} damage was dealt')
        self.energy -= 20

    def move(self,speed):
        print('The monster has moved')
        print(f'It has a speed of {speed}')

monster = Monster(20,10)

# hasattr and setattr
# if hasattr(monster,'health'):
#   print(f'the monster has {monster.health} health')

setattr(monster,'weapon', 'Sword')
# monster.weapon = 'Sword'
# print(monster.weapon)

# new_attributes = (['weapon','Axe'],['armor','Shield'],['potion','mana'])
# for attr,value in new_attributes:
#   setattr(monster,attr,value)
# print(vars(monster))

# doc
# print(monster.__doc__)
help(str)