mvc.py

# Model
class Vessel:
    def __init__(self, volume, type_drink):
        self.volume = volume
        self.type_drink = type_drink


class Bottle(Vessel):
    def __init__(self, volume, type_drink):
        super().__init__(volume, type_drink)


class Entity:
    def __init__(self, name, volume):
        self.name: str = name
        self.volume: int = volume
        self.last_drink = None


class Human(Entity):
    def __init__(self, name):
        super().__init__(name, 100)


# Control
def _drink(entity: Entity, vessel: Vessel, volume):
    vessel.volume -= volume
    entity.volume += volume
    entity.last_drink = vessel.type_drink
    return {
        "volume": volume,
        "type_drink": entity.last_drink,
        "vessel_volume": vessel.volume
    }


# View
def drink(entity: Entity, vessel: Vessel, volume):
    request = _drink(entity, vessel, volume)
    return f"{entity.name} drank {request.get('volume')} " \
           f"litters of {request.get('type_drink')}. " \
           f"There’s still {request.get('vessel_volume')} " \
           f"liters left in the {vessel.__class__.__name__}."


human = Human('Jorge')
bottle = Bottle(10, 'Water')

print(drink(human, bottle, 2))