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Start your free trialDominic Qu
3,435 PointsNow update Hand in hands.py. I'm going to use code similar to Hand.roll(2) and I want to get back an instance of Hand wi
Using the code below, I get the error message 'Wrong length for hand'. Could someone please explain what I am doing wrong and how to fix it? Much appreciated.
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, *args, **kwargs):
super().__init__(sides)
from dice import D20
class Hand(list):
def __init__(self,dice_list,*args, **kwargs):
self = dice_list
@classmethod
def roll(cls,value):
hand = []
for _ in range(value):
hand.append(D20())
return cls(hand)
@property
def total(self):
return sum(self)
1 Answer
Steven Parker
231,269 PointsYou don't need to override "__init__", and changing the calling signature (by adding a required argument) prevents the validation mechanism from successfully creating an instance.