In object-oriented programming (OOP) with Python, the `super()` function provides a clean and efficient way to call methods from a parent or superclass within a derived or child class. This is particularly useful when you want to extend or modify the behavior of a parent class method without completely rewriting it.

One common use case is in the `__init__()` method, the constructor for a class. Using `super()` in `__init__()` ensures that the parent class’s initialization logic is executed, which is crucial for setting up the object correctly. This avoids explicitly naming the parent class, which can be beneficial, especially in multiple inheritance scenarios [2].

How to Call a Parent class Function

To call a parent class function from a derived class, you use the `super()` function followed by the method name. Here’s the basic syntax:

class parent:
    def my_method(self):
        print("Parent's method")

class Child(Parent):
    def my_method(self):
        super().my_method()  # Calls Parent's my_method
        print("Child's method")

child = Child()
child.my_method()

In this example, when `child.my_method()` is called, it first executes the `my_method()` from the `Parent` class and then executes the `my_method()` from the `Child` class. This allows you to add functionality to the parent’s method without completely overriding it.

“super() lets you avoid referring to the base class explicitly, which can be nice.” [2]

Why Use super()?

While you could directly call the parent class method using `Parent.my_method(self)`, `super()` offers several advantages:

• Avoids Explicit Naming: You don’t need to explicitly name the parent class, making your code more maintainable and less prone to errors if the inheritance hierarchy changes [2].
• handles Multiple Inheritance: `super()` is essential for managing method resolution in complex multiple inheritance scenarios [2].
• Flexibility: It allows you to easily insert additional logic before or after the parent class method call.

There are situations where you might want to prevent users of a child class from directly accessing a parent class method. For example, the parent class might have a method that is not meaningful or could be misused in the context of the child class. In such cases, you can still use `super()` internally within the child class to leverage the parent’s functionality while controlling the external interface [1].