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The term "polymorphism" refers to a function or method taking different form in different contexts. Since Python is a dynamically typed language, Polymorphism in Python is very easily implemented.

If a method in a parent class is overridden with different business logic in its different child classes, the base class method is a polymorphic method.

Example

As an example of polymorphism given below, we have shape which is an abstract class. It is used as parent by two classes circle and rectangle. Both classes overrideparent's draw() method in different ways.

 
from abc import ABC, abstractmethod class shape(ABC): @abstractmethod def draw(self): "Abstract method" return class circle(shape): def draw(self): super().draw() print ("Draw a circle") return class rectangle(shape): def draw(self): super().draw() print ("Draw a rectangle") return shapes = [circle(), rectangle()] for shp in shapes: shp.draw()

Output

When you execute this code, it will produce the following output −

Draw a circle
Draw a rectangle

The variable shp first refers to circle object and calls draw() method from circle class. In next iteration, it refers to rectangle object and calls draw() method from rectangle class. Hence draw() method in shape class is polymorphic.

 

 

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