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Python Object-Oriented Python Dice Roller RPG Roller

Pls help with that task

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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):
        super().__init__(sides=20)
hands.py
class Hand(list):
    @property
    def total(self):
        return sum(self)
import D20

@classmethod
    def roll(cls, sum):

1 Answer

Hi. This one was a bit confusing for me as well.

Your method signature (def roll(cls, sum)) looks correct but you have to do a few things:

  1. Create a new instance of the Hand class and assign it to a variable:

    my_hand = cls()
    

    This will use our class method to create a new instance and assign it to my_hand

  2. Append a D20 to your Hand equal to the number of dice given as an argument to the roll classmethod

    for _ in range(sum):
        my_hand.append(D20())
    

    This will enumerate a range the length of the variable that you passed (that you called sum) and append a new D20 instance to the my_hand variable.

  3. Then return the Hand of D20s.

    return my_hand
    

So altogether you would have something like this:

    @classmethod
    def roll(cls, sum):
        my_hand= cls()
        for _ in range(sum):
            my_hand.append(D20())
        return my_hand