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# this works for me in the IDE but the challenge keeps telling me it can't get length

from dice import Hand obj_hand = Hand() obj_hand.roll(4) obj_hand [17, 11, 3, 4] obj_hand.total() 35 obj_hand.len <method-wrapper '__len__' of Hand object at 0x0000023BC88BB8B8> obj_hand.len() 4 len(obj_hand) 4

not sure what I am missing to trigger the issue

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):
super().__init__(sides=20)
```
hands.py
```class Hand(list):

def clear_hand(self):
del self[:]

def total(self):
return sum(self)

def roll(self, amt_dice):
x = 1
while x <= amt_dice:
foo = D20()
self.append(int(foo))
x = x + 1
```

## 1 Answer

Hints:

• `roll` should be a `@classmethod`
• `roll` should not modify an instance, instead it should create and instance with the random `D20`s and return it
• The new hand should contain `D20` instances, not `int`s (it seems that you are converting the `D20`s to `int`s)

thanks for the comment I think I'll have to think about it some more.