Ekata Singh2,872 Points
Cant get the length of hand
I have coded as per the requirements specified in the question and it seems to work perfectly on my local IDE. Can anybody suggest why am i getting this error?
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)
from dice import D20 class Hand(list): def roll(self,dice,dice_class=D20): for _ in list(range(dice)): self.append(D20()) return self @property def total(self): return sum(self)
Jeff MudayTreehouse Moderator 22,057 Points
The automated grader calls Hand.roll() to instantiate during testing-- rather than instantiating Hand() explicitly. So you need to define roll() as a @classmethod.
Once roll becomes a class method, you will get some different errors with your code. This is easily fixed by moving all the initialization code (including the loop from roll) into the "dunder init" function of Hand.
I hope this helps!