Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

Python Object-Oriented Python Dice Roller RPG Roller

Kévin André
PLUS
Kévin André
Courses Plus Student 5,831 Points

I am stuck on the dice-roller

Hi everyone,

I don't understand why my code is not working.

Thanks for your help :)

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
from dice import D20

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

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

Hand.roll(2) 

1 Answer

Jeff Muday
MOD
Jeff Muday
Treehouse Moderator 28,716 Points

To fix this, you will need to include an __init()__ method inside the Hand class.

    def __init(self, size, die_class=D20)
        self.size = size
        super().__init__()
        for _ in range(size):
            self.append(die_class())