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# RPG Roller challenge part 2.

I found three different answers regarding this particular challenge and none of them seem to be working out for me. What am I doing wrong?

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

@classmethod
def roll(cls, num_of_dice):
Hand = cls()
for _ in range(num_of_dice):
Hand.append(num_of_dice())
return (Hand())
```

Can't get the length of a `Hand`

```from dice import D20

class Hand(list):
@property
def total(self):
return sum(self)

@classmethod
def roll(cls, D20):
self = cls()
for _ in range(D20):
self.append(D20())
return (self)
```

[Mod: there needs to be a blank line above and below triple backticks ```. adding python will colorize]

MOD

Hey Jake Williams, Here some errors to fix:

• the item appended should be an `D20()` instance, not "num_of_dice"
• the object return should be the object created "Hand" not "Hand()"

Other areas to fix (not needed to pass, but good coding practice:

• Do not use the class name `Hand` as a local method variable name. In class methods, `self` is a good name to use since you are creating an instance.

Post back if you need more help. Good luck!!

I am still struggling with this. Tells me "Didn't get `D20`s in my `Hand` instance". Is this how you want me to do it?

```from dice import D20

class Hand(list):
@property
def total(self):
return sum(self)

@classmethod
def roll(cls, D20):
self = cls()
for _ in range(D20):
self.append(D20)
return (self)
```

You're almost there. An instance of `D20()` should be appended. Not the class reference `D20`. I've edited my answer above to clarify this.

You got this!!

Sorry, missed one more error. The parameter name can not be "D20". This creates a local variable local to the method named "D20" that prevents the method from accessing the imported `D20`.

• change the parameter D20 and the `range` argument to something else. You had `num_of_dice` before. That would be a good choice.

Whoa Boy!!! Don't know why that was so tricky for me.