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Start your free trialSanket K
2,394 PointsRPG Roller Task 2 failure
I implemented the Task 2 as attached. When I tested this locally, it appears to work as the total is displayed. However, it seems to fail when I run it here. Unfortunately the error message is too generic for me to understand why it fails.
>>> h = Hand.roll(3)
>>> h
[<__main__.D20 object at 0x10dfa79e8>, <__main__.D20 object at 0x10dfa7c50>, <__main__.D20 object at 0x10dfa7cc0>]
>>> h.total
14
>>> sum(h)
14
>>> h[0].value
4
>>> h[1].value
9
>>> h[2].value
1
Maybe I am misunderstanding the requirement. Hopefully someone can clarify
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__(20)
class Hand(list):
@property
def total(self):
return sum(self)
@classmethod
def roll(cls, num):
cls = Hand()
for _ in range(num):
cls.append(D20())
return cls
1 Answer
Steven Parker
231,269 PointsYou just forgot to add "from dice import D20" in hands.py.
However, it's very unconventional to re-assign "cls" in a class method. Normally, you would call it instead of the class itself to create a new instance.
Sanket K
2,394 PointsSanket K
2,394 PointsThanks Steven. That was such a silly mistake!
I did try what you suggested, and I believe what you meant was something like this?
Steven Parker
231,269 PointsSteven Parker
231,269 PointsYes, much more "best practice".