---
title: How does inheritance work in python?
description: How does inheritance work in python?
---
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# How does inheritance work in python?
Inheritance gives the power to a class to access all attributes and methods of another class. It aids in code reusability and helps the developer to maintain applications without redundant code. The class inheriting from another class is a child class or also called a derived class. The class from which a child class derives the members are called parent class or superclass.
Python supports different kinds of inheritance, they are:
Single Inheritance: Child class derives members of one parent class.
\# Parent class
class ParentClass:
def par\_func(self):
print("I am parent class function")
\# Child class
class ChildClass(ParentClass):
def child\_func(self):
print("I am child class function")
\# Driver code
obj1 = ChildClass()
obj1.par\_func()
obj1.child\_func()
Multi-level Inheritance: The members of the parent class, A, are inherited by child class which is then inherited by another child class, B. The features of the base class and the derived class are further inherited into the new derived class, C. Here, A is the grandfather class of class C.
\# Parent class
class A:
def \_\_init\_\_(self, a\_name):
self.a\_name = a\_name
\# Intermediate class
class B(A):
def \_\_init\_\_(self, b\_name, a\_name):
self.b\_name = b\_name
\# invoke constructor of class A
A.\_\_init\_\_(self, a\_name)
\# Child class
class C(B):
def \_\_init\_\_(self,c\_name, b\_name, a\_name):
self.c\_name = c\_name
\# invoke constructor of class B
B.\_\_init\_\_(self, b\_name, a\_name)
def display\_names(self):
print("A name : ", self.a\_name)
print("B name : ", self.b\_name)
print("C name : ", self.c\_name)
\# Driver code
obj1 = C('child', 'intermediate', 'parent')
print(obj1.a\_name)
obj1.display\_names()
Multiple Inheritance: This is achieved when one child class derives members from more than one parent class. All features of parent classes are inherited in the child class.
\# Parent class1
class Parent1:
def parent1\_func(self):
print("Hi I am first Parent")
\# Parent class2
class Parent2:
def parent2\_func(self):
print("Hi I am second Parent")
\# Child class
class Child(Parent1, Parent2):
def child\_func(self):
self.parent1\_func()
self.parent2\_func()
\# Driver's code
obj1 = Child()
obj1.child\_func()
Hierarchical Inheritance: When a parent class is derived by more than one child class, it is called hierarchical inheritance.
\# Base class
class A:
def a\_func(self):
print("I am from the parent class.")
\# 1st Derived class
class B(A):
def b\_func(self):
print("I am from the first child.")
\# 2nd Derived class
class C(A):
def c\_func(self):
print("I am from the second child.")
\# Driver's code
obj1 = B()
obj2 = C()
obj1.a\_func()
obj1.b\_func() #child 1 method
obj2.a\_func()
obj2.c\_func() #child 2 method
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