Ex 42: Is-a, has-a examples

Python
#1

So I was drillling the is-a has-a stuff (and still am) but there’s one thing I’m not entirely sure about because it’s not explicitly covered in the examples…

From ex 42 we know that

foo = Bar()

means “set foo to an instance of class Bar”

and we know that

class Bar(Thing):

means “Make a class Bar that is-a Thing”

But what of this?

foo = Bar(thing)

Would that be “set foo to an instance of class Bar that is-a thing”?

or would it be “set foo to an instance of class Bar that takes parameter thing”?

Or something else? I’m not clear on this point…

#2

Set foo to an instance of class Bar and initialize it with the argument thing.

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