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Python Classes and Objects

In Python, classes and objects are the fundamental concepts of object-oriented programming (OOP).

Classes define the blueprint or template for creating objects, which are instances of a class. Objects encapsulate data (attributes) and behaviors (methods) into a single entity.


The greet method is a behavior defined within the class. It takes self as its first parameter, which represents the object calling the method. self is a convention in Python to refer to the current instance of the class.

To create objects, you simply call the class as if it were a function, passing any required arguments defined in the __init__ method. The resulting objects (person1 and person2) can then access their attributes using dot notation (object.attribute) and invoke their methods using dot notation as well (object.method()).



The class also has two additional methods, start_engine and stop_engine, which define behaviors that objects of the class can perform. These methods can access the object's attributes using the self parameter.

Here is an example of classes and objects in Python:


In this example, Car is a class that represents a car. It has three attributes: make, model, and year. It also has two methods: drive() and stop().

To create an instance of the Car class, we use the Car() constructor. We pass in the make, model, and year of the car to the constructor. We can then use the object's methods to interact with it.

For example, we can call the drive() method to make the car drive, and we can call the stop() method to make the car stop.

Classes and objects are a powerful way to organize and structure code in Python. They allow us to encapsulate data and behavior together, making our code more reusable and easier to understand.

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