CODEWITHSUNDEEP
python-3.x
kasuals
kasuals

Reputation: 11

Super in this case makes no sense to me

class SimpleRoundedCorners(QWidget):
    def __init__(self):
        super(SimpleRoundedCorners, self).__init__()
        self.initUI()

This makes no sense to me. I've read how super() works, and maybe I'm just not good enough at objects to grasp it. This seems like a very redundant call. Why am I calling init twice on the same object?

Upvotes: 1

Views: 92

Answers (1)

Omar AlSuwaidi
Omar AlSuwaidi

Reputation: 1404

In OOP, super() is very useful for the purpose of multiple-inheritance. It gives you access to methods and attributes from a superclass, to be used in a sub/child class, which saves a lot of time and effort.

The second init call is used to access the superclass from the base/sub class. Where you pass in the arguments required by the superclass's init constructor; such that when you instantiate the base/sub class, you only pass in the arguments required by its init constructor only, not the arguments required for the superclass's init constructor. A nice example of that is looking at the implementation in this answer.

Moreover, you can just write super().__init__() without explicitly referring to the base class.

Upvotes: 1

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