Constructor in simple inheritance in python by R4R Team

Inheritance-
-Inheritance allows us to define a class that inherits all the methods and properties from another class.
Parent class-
it is the class being inherited from, also called base class.
Child class-
Child class is the class that inherits from another class, also called derived class.

Syntax-
class parent():
body
class child(parent):
body

Constructor-
-constructor is a special type of function of the class which is automatically call when the instance of the class is created.

Syntax-

def __init__(self,arg):
body


program-

#create parent class
class A():
def __init__(self):
print("Constructor of class A")

#create child class
class B(A):
def __init__(self):
print("Constructor of class B")

#create object of child class
b=B()

output-

Constructor of class B

-In this program, we have a two class, class A and class B.
-Here both class contain the constructor and class B is a child class which inherits the property of class A.
-In c++, when we create a object of the child class then the constructor of parent class also call along with the constructor of child class.
-But in python, constructor of only child class is call,when the object of child class is created.