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Python Basic Object-Oriented Python Creating a Memory Game Card Class

Jonathan Grieve
MOD
Jonathan Grieve
Treehouse Moderator 91,253 Points
Posted by Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,253 Points

self.card

In the video, Megan refers to a card attribute in the __init__ method of the Card class but passes in word as an argument. But she uses self.card = word when setting it.

Is this an error?

I tried changing the code to set the attribute to self.word = word as I think it should be and the code works the same way. Was this a mistake and it should have been self.word?

(Sorry, I didn't mean to make this post sound so blunt and critical) 😊

2 Answers

Chris Freeman
MOD
Chris Freeman
Treehouse Moderator 68,457 Points
Chris Freeman
Chris Freeman
Treehouse Moderator 68,457 Points

Hey Jonathan Grieve, good question!

TL;DR: yes, it could, and probably would have been, a better choice to use Card.word or Card.text as the attribute name.

Since the name of an initialization parameter is not exposed, it could be anything, and the proper choice makes a difference in the readability of the code. Obviously,

def __init__(self, rockpile, location):
    self.card = rockpile
    #...

would also work, but makes it a bit confusing.

The attribute name card is exposed and has a direct effect on the readability of the code. Card.card can be argued is not as descriptive as it could be. You are correct that Card.word or even Card.text might be more appropriate. In some cases, if an attribute has already been established and exists in legacy code, a painful less-than-optimum choice lives on forever.

As to whether this is a "mistake", only those present at the code review could say. 🤷‍♂️

Post back if you wish to discuss this more. Happy coding!!