from dataclasses import dataclass


@dataclass
class Article:
    """
    an article in the farmshop
    """
    name: str
    price: float
    stock: int

    @property
    def name(self):
        return self._name

    @name.setter
    def name(self, value):
        self._name = value

    @property
    def price(self):
        return self._price

    @price.setter
    def price(self, value):
        self._price = value

    @property
    def stock(self):
        return self._stock

    @stock.setter
    def stock(self, value):
        self._stock = value

    @property
    def article_value(self):
        return self._price * self._stock

if __name__ == '__main__':
    pass