A constructor is a special kind of method that Python calls when it instantiates an object using the definitions found in your class. Python relies on the constructor to perform tasks such as initializing (assigning values to) any instance variables that the object will need when it starts. Constructors can also verify that there are enough resources for the object and perform any other start-up task you can think of.
The name of a constructor is always the same, __init__(). The constructor can accept arguments when necessary to create the object. When you create a class without a constructor, Python automatically creates a default constructor for you that doesn’t do anything. Every class must have a constructor, even if it simply relies on the default constructor.Python doesn’t support true function overloading. Many strict adherents to strict Object-Oriented Programming (OOP) principles consider default values to be something different from function overloading. However, the use of default values obtains the same result, and it’s the only option that Python offers. In true function overloading, you see multiple copies of the same function, each of which could process the input differently.
