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Python Object-Oriented Python Dice Roller RPG Roller

i need help

Create a new class in dice.py named D20 that extends Die. It should automatically have 20 sides and shouldn't require any arguments to create.

dice.py
import random


class Die:
    def __init__(self, sides=2):
        if sides < 2:
            raise ValueError("Can't have fewer than two sides")
        self.sides = sides
        self.value = random.randint(1, sides)

    def __int__(self):
        return self.value

    def __add__(self, other):
        return int(self) + other

    def __radd__(self, other):
        return self + other

class D20(Die):
    def __init__(self, sides=20):
        super().__init__(sides)

from dice import D20


class Hand(roll):
    def __init__(self, new_hand):
        super().__init__()
        self.extend(new_hand)

    @classmethod
    def roll(cls, size, die_class=D20):
        new_hand = []
        for _ in range(size):
            new_hand.append(die_class())
        return cls(new_hand)

    @property
    def total(self):
        return sum(self)
hands.py
class Hand(list):
    @property
    def total(self):
        return sum(self)

1 Answer

Hi Morningstar,

Starting with your "from dice import D20," this code should all be in the hands.py file:

from dice import D20

class Hand(list):
    def roll(num_dice):
        hand = Hand()
        for i in range(num_dice):
            die = D20()
            hand.append(die)
        return hand
    @property
    def total(self):
        return sum(self)

I didn't use class methods, but the challenge did say it didn't care about implementation.