Object-oriented programming in Python 3
A Quick Primer
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Python is a powerful programming language that is widely used in many different applications today. Python is known for its ease of use and readability, making it a great choice for beginners and experienced programmers alike.
One of the most important concepts in Python is object-oriented programming (OOP). OOP is a way of structuring code so that it is easier to reuse and maintain. In this blog post, we’ll give a quick primer on OOP in Python 3.
Introduction to OOP
In object-oriented programming, a class is a template for creating objects. An object is an instance of a class. Objects have attributes (data) and methods (functions).
In Python 3, all classes inherit from the built-inobjectclass. This means that every object in Python has the same basic set of attributes and methods. However, you can create your own custom classes with their own attributes and methods.
Creating a Class in Python 3
To create a class in Python 3, use theclasskeyword:
>>> class MyClass:
Defining Classes and Objects
A class is a template for creating objects. An object is an instance of a class. Objects have attributes (data) and methods (functions).
In Python 3, all classes inherit from the built-inobjectclass. This means that every object in Python has the same basic set of attributes and methods. However, you can create your own custom classes with their own attributes and methods
Creating Instances
Classes are templates for creating objects. Objects are instances of classes. You can create an instance of a class by using theclassname followed by parentheses:
>>> my_instance = MyClass()
This will create an object that is an instance of theMyClassclass. You can access the attributes and methods of this object using dot notation:
>>> my_instance.some_attribute
Accessing Attributes and Methods
Accessing Attributes and Methods
Once you have created an object, you can access its attributes and methods using dot notation. For example, if you have an object named my_instance that is an instance of the MyClass class, you can access its some_attribute attribute like this:
>>> my_instance.some_attribute
Special Methods
Special methods are functions that are defined in a class that have special meaning. For example, the__init__method is used to initialize an object. The__str__method is used to return a string representation of an object.
In Python 3, all classes inherit from the built-inobjectclass. This means that every object in Python has the same basic set of attributes and methods. However, you can create your own custom classes with their own attributes and methods
OOP is a powerful tool that can help you write more readable and reusable code. In this blog post, we’ve given a quick overview of OOP in Python 3. If you’re new to Python or programming in general, we hope this has been a helpful introduction.
