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# RPG Roller

I passed the challeng but still doesn't undestand the following, could you please clarify:

1. How argument num_dice has conection with arguments instantiated in init method and replace them when we call def roll?

2. Why it 's print out object instead of value in roll and sum (we putted str method but it doesn't work in Pycharm) and it is still print out objects, how it can be solved?

[<dice_1.D20 object at 0x1014247b8>, <dice_1.D20 object at 0x101424860>] instead of figures [1, 12]

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

return int(self) + other

return self + other

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

class Hand(list):

def __init__(self, size = 2, die_class = D20):
super().__init__(self)

for _ in range(size):
self.append(die_class())

@classmethod
def roll (cls, num_dice):
return cls(num_dice)

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

When you call `Hand.roll(5)`, that's the same as calling `Hand(5)`, which would also be equivalent to `Hand(size=5)`. Since both keyword arguments have a default value, any that don't have a value provided just use the default.
I'm not sure what you're printing here (and I don't see any `__str__` methods). If you're printing a `Hand` instance, though, that's just using `list.__str__` (since it extends `list`) which will use the `__repr__` output for each thing in the list. If your `Die` class doesn't have a `__repr__` method, you'll get what you showed there, a class name and memory location.