Welcome to the Treehouse Community

The Treehouse Community is a meeting place for developers, designers, and programmers of all backgrounds and skill levels to get support. Collaborate here on code errors or bugs that you need feedback on, or asking for an extra set of eyes on your latest project. Join thousands of Treehouse students and alumni in the community today. (Note: Only Treehouse students can comment or ask questions, but non-students are welcome to browse our conversations.)

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and a supportive community. Start your free trial today.

Python Object-Oriented Python Dice Roller RPG Roller

Ashish Rawat
seal-mask
.a{fill-rule:evenodd;}techdegree
Ashish Rawat
Python Web Development Techdegree Student 653 Points

Bummer! Can't get the length of a `Hand`. Task 2 of Code Challenge RPGRoller.

Want to understand why my attached code is incorrect even though local copy of the same code gives me correct answers. On my code following gives me correct answers as I would expect. test = Hand() test.roll(2) print(test) print (test.total) print (len(test))

[5, 1] 6 2

Process finished with exit code 0

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

    def __repr__(self):
        return str(self.value)

class D20(Die):
    def __init__(self):
        super().__init__(sides=20)
hands.py
from dice import D20
class Hand(list):



    def roll(self, count, die_class=D20):
        for _ in range(count):
            self.append(die_class())
        return self

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