items.py

class Item():
    def __init__(self, name, description, value):
        self.name=name
        self.description = description
        self.value = value

    def __str__(self):
        return "{}\n======\n{}\nValue: {}\n".format(self.name,self.description, self.value)

class Gold(Item):
    def __init__(self, amt):
        self.amt=amt
        super().__init__(name="Gold", description="A round coin with {} stanped on the front.".format(str(self.amt)), value= self.amt)

class Weapon (Item):
    def __init__(self, name, description, value, damage):
        self.damage = damage
        super().__init__(name, description, value)

    def __str__(self):
        return "{}\n=====\n{}\nValue: {}\nDamage: {}".format(self.name, self.description, self.value, self.damage)

class Rock(Weapon):
    def __init__(self):
        super().__init__(name="Rock", description="A fist sized rock, suitable for bludgeoning.", value=0, damage=5)

class Dagger(Weapon):
    def __init__(self):
        super().__init__(name="Dagger", description="A small dagger with some rust.  Somewhat more dangerous than a rock.", value=10, damage=10)