Have you learned the polymorphism of Python object oriented programming?

Mondo Technology Updated on 2024-03-05

Polymorphism is a very important concept in Python object-oriented programming. Polymorphism means that an interface can be implemented in multiple ways, or that an interface can be implemented by a variety of objects. This is very important in programming because it helps us write more flexible and scalable **.

Imagine if you had a function that needed to handle different objects, but they all implemented the same interface, then you could use polymorphism to make your function more concise and easy to maintain.

In Python, you can implement polymorphism by defining an interface. For example, you can define an animal class and have other classes inherit from that class. You can then define a method in the animal class and override it in other classes. This way, when you call a call method, python automatically calls the correct implementation.

Here's a simple example:

Class definitions.

parent class animal(object): def eat(self): print("How the animal eats"Class fish(animal): def eat(self): print("Heavy rain eats small fish, and small fish eat dried shrimp")class cat(animal): def eat(self): print("Cats love to eat fishy")class dog(animal): def eat(self): print("Dogs love to eat bones"Create a subclass object fish = fish() cat = cat() dog = dog() different subclass objects, call the eat method with the same name, and call the object's own method, which is a simple polymorphic embodiment of fisheat()cat.eat()dog.eat() is a strict polymorphic embodiment of class person(object): def feed(self, animal): animaleat()person().feed(dog)person().feed(cat)person().feed(fish)
Execution result.

Heavy rain eats small fish, and small fish eat dried shrimpCats love to eat fishyDogs love to eat bonesDogs love to eat bonesCats love to eat fishyHeavy rain eats small fish, and small fish eat dried shrimp
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