How Do You Invoke the Super Constructor in Python?

Invoking the Super Constructor in Python

The reference to "other languages" in the question suggests that theinquirer is familiar with object-oriented (OO)programming in other languages, where it is typically thecase that the base(super) class constructor is invoked implicitly. This is also the case in Python, althoughthere are methods for explicitly invoking the superclassconstructor.

To address the inquirer's expectations, Python 3 has simplified the process of invoking the superclass constructor. The following example provides an explicit demonstration that works in Python 3:

class A(object):
    def __init__(self):
        print("world")

class B(A):
    def __init__(self):
        print("hello")
        super().__init__()  

In Python 2, invoking the superclass constructor requires a slightly more verbose form:

class A(object):
    def __init__(self):
        print "world"

class B(A):
    def __init__(self):
        print "hello"
        super(B, self).__init__()  

Both examples output "hello" followed by "world," demonstrating the correct invocation of the superclass constructor.

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