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How to create abstract class in python3

In the example below; "Polygon" class is the base class which has the abstract method. "Triangle" is the derived class which overrides the abstract method. All required syntax can be found below:

from abc import ABC, abstractmethod

# Defining an abstract class

class Polygon(ABC):


    def noofsides(self):


# Define Trinangle class, from the abstract Polygon class

class Triangle(Polygon):

    # overriding abstract method

    def noofsides(self):

        print("I have 3 sides")

How to create abstract class in python3
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