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Python

Khaleel Yusuf
Khaleel Yusuf
15,208 Points
Posted by Khaleel Yusuf
Khaleel Yusuf
15,208 Points

We're playing a popular board game about snatching up real estate in Atlantic City. I need you finish out the Capitalism

I need so much help.

hands.py 
from dice import D6


class Hand(list):
    def __init__(self, size=0, die_class=None, *args, **kwargs):
        if not die_class:
            raise ValueError("You must provide a die class")
        super().__init__()

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

    def _by_value(self, value):
        dice = []
        for die in self:
            if die == value:
                dice.append(die)
        return dice


class CapitalismHand(Hand):
    def __init__(self, *args, **kwargs):
        super().__init__(size=2, die_class=D6, *args, **kwargs)
    @property
    def ones(self):
        return self._by_value(1)

    @property
    def twos(self):
        return self._by_value(2)

    @property
    def threes(self):
        return self._by_value(3)

    @property
    def fours(self):
        return self._by_value(4)

    @property
    def fives(self):
        return self._by_value(5)

    @property
    def sixes(self):
        return self._by_value(6)

    @property
    def _sets(self):
        return {
            1: len(self.ones),
            2: len(self.twos),
            3: len(self.threes),
            4: len(self.fours),
            5: len(self.fives),
            6: len(self.sixes)
        }

11 Answers

Steven Parker
Steven Parker
229,787 Points
Steven Parker
Steven Parker
229,787 Points

But the point is to learn how to do it.

So the instructions say, "Alright! Now I need you to add a new property called doubles. It should return True if both of the dice have the same value. Otherwise, return False." Let's try breaking it down to smaller steps:

  • add a "property" line
  • add a "def" line to declare the method
  • the name of the method is "doubles"
  • the method takes no arguments
  • the object has 2 dice in it (you made that happen in task 1)
  • each item can be accessed by indexing ("self[0]" and "self[1]")
  • an equality comparison ("==") will return True of both items have the same value

I'll bet you can do it now.

Omar G.
Omar G.
3,620 Points

Thanks for this explanation. I was trying to do something like self.value == self. value but as soon as I read "the object has 2 dice in it (you made that happen in task 1)" I understood how to solve this problem

Steven Parker
Steven Parker
229,787 Points
Steven Parker
Steven Parker
229,787 Points

That's not exactly "more specific". But try breaking the instructions down into smaller steps and/or re-watching the videos.

Khaleel Yusuf
Khaleel Yusuf
15,208 Points
Khaleel Yusuf
Khaleel Yusuf
15,208 Points

I did rewatch the videos and I didn't understand anything. Could just give me the code to finish this code challenge, please?

Steven Parker
Steven Parker
229,787 Points
Steven Parker
Steven Parker
229,787 Points

Can you be a bit more specific? I'm not sure what part you are having trouble with.

Steven Parker
Steven Parker
229,787 Points
Steven Parker
Steven Parker
229,787 Points

It looks like you've passed task 1 but have not yet done task 2.

For task 2 you will " add a new property called doubles". There are a lot of properties already to serve as a model for the basic structure of a property. Then, your property "should return True if both of the dice have the same value". So since "CapitalismHand" is a type of "list:", you can directly return the result of comparing the first two items (the ones with index values "0" and "1") with each other.

pierreilyamukuru
pierreilyamukuru
9,831 Points
pierreilyamukuru
pierreilyamukuru
9,831 Points

class CapitalismHand(Hand): def init(self,*args, **kwargs): super().init(size=2, die_class=D6, *args, **kwargs) @property def ones(self): return self._by_value(1)

@property
def twos(self):
    return self._by_value(2)

@property
def threes(self):
    return self._by_value(3)

@property
def fours(self):
    return self._by_value(4)

@property
def fives(self):
    return self._by_value(5)

@property
def sixes(self):
    return self._by_value(6)

@property
def _sets(self):
    return {
        1: len(self.ones),
        2: len(self.twos),
        3: len(self.threes),
        4: len(self.fours),
        5: len(self.fives),
        6: len(self.sixes)
    }
Khaleel Yusuf
Khaleel Yusuf
15,208 Points
Khaleel Yusuf
Khaleel Yusuf
15,208 Points

Isn't this correct: @property def doubles(self): if self[0] == self[1]: return True

Steven Parker
Steven Parker
229,787 Points
Steven Parker
Steven Parker
229,787 Points

Very close! Now you just need to return False if the values don't match.

To show code with indentation, use the instructions for code formatting in the Markdown Cheatsheet pop-up below the "Add an Answer" area. :arrow_heading_down:   Or watch this video on code formatting.

Khaleel Yusuf
Khaleel Yusuf
15,208 Points
Khaleel Yusuf
Khaleel Yusuf
15,208 Points

My code won't let me pass the first question.

Steven Parker
Steven Parker
229,787 Points
Steven Parker
Steven Parker
229,787 Points

Show the code as it is now. Be sure to format it.

Khaleel Yusuf
Khaleel Yusuf
15,208 Points
Khaleel Yusuf
Khaleel Yusuf
15,208 Points 
from dice import D6

class Hand(list): 
    def init(self, size=0, die_class=None, *args, **kwargs): 
        if not die_class:
            raise ValueError("You must provide a die class") 
            super().init()

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

    def _by_value(self, value):
        dice = []
        for die in self:
            if die == value:
                dice.append(die)
            return dice


class CapitalismHand(Hand): 
    def init(self, args, **kwargs): 
        super().init(size=2, die_class=D6, *args, *kwargs)

@property
def ones(self):
    return self._by_value(1)

@property
def twos(self):
    return self._by_value(2)

@property
def threes(self):
    return self._by_value(3)

@property
def fours(self):
    return self._by_value(4)

@property
def fives(self):
    return self._by_value(5)

@property
def sixes(self):
    return self._by_value(6)

@property
def _sets(self):
    return {
        1: len(self.ones),
        2: len(self.twos),
        3: len(self.threes),
        4: len(self.fours),
        5: len(self.fives),
        6: len(self.sixes)
    }
Khaleel Yusuf
Khaleel Yusuf
15,208 Points
Khaleel Yusuf
Khaleel Yusuf
15,208 Points

I indented it but it didn't work

Steven Parker
Steven Parker
229,787 Points
Steven Parker
Steven Parker
229,787 Points

The formatting seems to be correct, which would mean that the indentation is not correct.

Also, the task 1 code which was correct before seems to have changed and is no longer good. Is used to have "__init__" but now only has "init".

And I can't see the code you added for "doubles".

Khaleel Yusuf
Khaleel Yusuf
15,208 Points
Khaleel Yusuf
Khaleel Yusuf
15,208 Points

Now I need help on the next question: And, finally, if I have doubles, I want to reroll the hand. Add a classmethod to CapitalismHand named reroll that returns a new instance of the class, effectively rerolling the hand.

Steven Parker
Steven Parker
229,787 Points
Steven Parker
Steven Parker
229,787 Points

The next step is just a matter of declaring a "classmethod", and creating a new "Hand" object in it and returning it. If you still have trouble, start a new question which includes your code.

Happy coding!