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Python Object-Oriented Python (retired) Inheritance __str__

Simone Watson
Simone Watson
2,072 Points
Posted by Simone Watson
Simone Watson
2,072 Points

Expected "Player 1: 5; Player 2: 2". Got "Player 1: 5, Player 2: 10".

Please help me figure out the tuple aspect of this question. I'm not sure how to define self.score, and I think that's why my code is messing up...

2 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,454 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,454 Points

Two issues:

from game import Game

class GameScore(Game):
  pass 

  def __str__(self):
    # self.score = (5,10)  # <-- comment this line. not needed
    self.player_1, self.player_2 = self.score
    return "Player 1: {}; Player 2: {}".format(self.player_1, self.player_2)  # <-- replace comma with semi-colon

The grader can be so picky!

Niels Dhollander-Barclay
Niels Dhollander-Barclay
4,674 Points

I found this solution after I was trying to pass the following return statement:

return "Player 1: {}; Player 2: {}".format(self.score)

Why can't I just pass the self.score tuple in my return statement?

Edit: Thank you for your solution, I like the last one referencing the indices the best! So much elegant!

Chris Freeman
Chris Freeman
Treehouse Moderator 68,454 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,454 Points

The error you maybe seeing is due to a mismatch between the number of fields {} and the number of arguments provided.

Try either:

## Using a repeat field number
return "Player 1: {0}; Player 2: {0}".format(self.score)

## OR repeating argument 
return "Player 1: {}; Player 2: {}".format(self.score, self.score)
Chris Freeman
Chris Freeman
Treehouse Moderator 68,454 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,454 Points

I found two other ways to use the format statement: pass an object so you can reference attributes directly:

class GameScore(Game):
    pass

    def __str__(self):
        return "Player 1: {s[0]}; Player 2: {s[1]}".format(s=self.score)

Even more dense is to reference off of positional arguments: self.score is in positional position 0, the references 0[0] and 0[1] reference the first and second item of the object.

class GameScore(Game):
    pass

    def __str__(self):
        return "Player 1: {0[0]}; Player 2: {0[1]}".format(self.score)
Simone Watson
Simone Watson
2,072 Points
Simone Watson
Simone Watson
2,072 Points

Here's my code...

from game import Game

class GameScore(Game):
  pass 

  def __str__(self):
    self.score = (5,10)
    self.player_1, self.player_2 = self.score
    return "Player 1: {}, Player 2: {}".format(self.player_1, self.player_2)

[MOD: fixed code formatting with backtick ` instead of single quote ` -cf]

Chris Freeman
Chris Freeman
Treehouse Moderator 68,454 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,454 Points

I noticed you have a comma (,) instead of a semi-colon (;) in the return string.

Also, you do not want to set the value of self.score. It will be inherited from the Game class.