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  1. In Python, classes are blueprints for creating objects, encapsulating data (attributes) and behavior (methods) into a single unit. Objects are instances of classes, each with its own state but sharing the class’s defined structure and behavior.

    Creating a Class and Object

    class Dog:
    species = "Canine" # Class attribute (shared)

    def __init__(self, name, age):
    self.name = name # Instance attribute (unique per object)
    self.age = age

    def bark(self): # Instance method
    return f"{self.name} says woof!"

    dog1 = Dog("Buddy", 3)
    print(dog1.bark()) # Buddy says woof!
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    • Class attributes are shared across all instances.

    • Instance attributes are unique to each object.

    • The __init__ method initializes object state.

    • Methods always take self as the first parameter for instance access.

    Collections in Classes Classes can store and manage collections like lists, dicts, or sets as attributes:

    class Library:
    def __init__(self):
    self.books = [] # Collection attribute

    def add_book(self, title):
    self.books.append(title)

    def list_books(self):
    return self.books

    lib = Library()
    lib.add_book("Python 101")
    print(lib.list_books()) # ['Python 101']
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  1. 9. Classes — Python 3.14.3 documentation

    Learn how to create and use classes in Python, a mixture of C++ and Modula-3 class mechanisms. Understand scopes, namespaces, attributes, methods, inheritance, and m…

    • Objects have individuality, and multiple names (in multiple scopes) can be bound to the same object. This is known as aliasing in other languages. This is usually not appreciated on a first glance at Python…
    See more on docs.python.org
  2. Python Classes: The Power of Object-Oriented …

    In this tutorial, you’ll learn how to define and use Python classes, understand the distinction between classes and objects, and explore methods and attributes. …

  3. Python Classes - W3Schools

    Python is an object oriented programming language. Almost everything in Python is an object, with its properties and methods. A Class is like an object constructor, or a "blueprint" for creating objects. To …

    Code sample

    # Create a class named MyClass, with a property named x
    class MyClass:
      x = 5
  4. Object-Oriented Programming in Python: Complete OOP …

    Feb 19, 2026 · Master Python OOP fundamentals: classes, objects, inheritance, encapsulation, polymorphism, and abstraction. Includes practical examples and …

  5. Python Classes and Objects [Guide] – PYnative

    Feb 24, 2024 · Learn What is classes and objects in Python, class attributes and methods, modify and accessing object properties.

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  7. An Essential Guide to the Python Class By Practical …

    Learn how to define and use classes and objects in Python, and how to create instances of a class. A class is a blueprint for creating objects, and a class is …

  8. Python Classes and Objects: A Beginner's Guide (2026)

    Feb 16, 2026 · Learn Python classes with clear examples. Understand constructors, instance variables, inheritance, and OOP basics. Perfect guide for beginners.

  9. Python - Classes and Objects - Online Tutorials Library

    What is a Class in Python? In Python, a class is a user defined entity (data types) that defines the type of data an object can contain and the actions it can perform. It is used as a template for creating objects.