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Python Object-Oriented Python Inheritance Inheritance Quiz

Do not really understand why a class attribute is not accessible in a class method

In one of the quiz of the Object oriented Python course we have the following code:

class Orange(Fruit):
    has_pulp = True

    def squeeze(self):
        return has_pulp

I cannot understand why:

print(Orange().squeeze())

doesn't return True

2 Answers

Steven Parker
Steven Parker
231,236 Points

The issue here is that since the "squeeze" method returns "has_pulp" and not "self.has_pulp" we don't have any information to really know what it will return. It might return True, perhaps there's a global variable (not shown here) that was also set to True. It could just as easily have been set to False. Or perhaps it is not defined and the function will cause a NameError exception.

So since we can't say for sure that it will return True, the statement itself is then false.

Thanks you so much Steven for your explanation That was crystal clear :-)