Simple composite objects
A composite object can also be called a
container. We'll look at a simple composite object: a deck of individual cards. This is a basic collection. Indeed, it's so basic that we can, without too much struggle, use a simple list as a deck.
Before designing a new class, we need to ask this question: is using a simple list appropriate?
We can use random.shuffle() to shuffle the deck and deck.pop() to deal cards into a player's Hand.
Some programmers rush to define new classes as if using a built-in class violates some object-oriented design principle. Avoiding a new class leaves us with something as shown in the following code snippet:
d= [card6(r+1,s) for r in range(13) for s in (Club, Diamond, Heart, Spade)] random.shuffle(d) ...
Get Mastering Object-oriented Python now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
