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Python Object-Oriented Python Dice Roller RPG Roller

RPG Roller challenge Task 2 of 2

How should I continue to make my Hand class working?

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)
hands.py
from dice import D20


class Hand(list):


    super().__init__()

    @classmethod
    def roll(number):
        Hand = []
        for rolls in range(number):
            Hand.append(int(D20()))
        return Hand   

    @property
    def total(self):
        return sum(self)

2 Answers

Steven Parker
Steven Parker
231,236 Points

You're getting close, here's a few hints:

  • the "super" call that's sitting there by itself isn't needed
  • a class method would generally have a first parameter of "cls"
  • the "roll" method should return an instance of the "Hand" class instead of a list
  • the D20's should be appended directly and not converted into ints
Kelvin Lim
Kelvin Lim
5,090 Points

How would you return an instance of Hand?

Steven Parker
Steven Parker
231,236 Points

The "cls" argument can be used to create a new instance. Use it as you would the the class name.