How to Understand Python Class vs Object with a Tiny Example

Feb 9, 2026

Problem

I understood functions and loops, but I could not explain the difference between a class and an object. The syntax felt weird and I did not know what was real and what was just a template.

Environment

Python 3.11
macOS

What happened?

I tried to read examples, but I kept mixing the class definition and the object itself. I finally forced myself to write one tiny file and run it.

class Dog:
    def __init__(self, name: str, color: str):
        self.name = name
        self.color = color

    def bark(self) -> str:
        return f"{self.name} says woof"

blueprint = Dog  # This is the class, not an object

buddy = Dog("Buddy", "black")
maxy = Dog("Maxy", "brown")

print(blueprint)
print(buddy)
print(buddy.name, buddy.color)
print(maxy.name, maxy.color)
print(buddy.bark())

When I run it:

python3 class_vs_object.py

I get:

<class '__main__.Dog'>
<__main__.Dog object at 0x105f6b1c0>
Buddy black
Maxy brown
Buddy says woof

This tiny output finally made it click.

How to solve it?

I used a blueprint analogy. The class is the blueprint. The object is the real thing you build from it. The class tells Python what attributes and methods an object should have, but the object holds the real data.

If you are new to this, start with the smallest possible class. No fancy features, just one attribute and one method.

class Box:
    def __init__(self, size: int):
        self.size = size

    def area(self) -> int:
        return self.size * self.size

box_a = Box(2)
box_b = Box(5)

print(box_a.size, box_a.area())
print(box_b.size, box_b.area())

python3 tiny_class.py

2 4
5 25

You can see that the class is one definition, but I can create many objects with different values.

The reason

I think the key reason people get stuck is that class syntax looks like a function, but it does not run by itself. It only becomes real when you call the class to create an object. Once I saw two objects with different values, the difference felt obvious.

Summary

In this post, I explained Python class vs object with a tiny runnable example. The key point is a class is a blueprint, and an object is a concrete instance created from it.

Final Words + More Resources

My intention with this article was to help others share my knowledge and experience. If you want to contact me, you can contact by email: Email me

Here are also the most important links from this article along with some further resources that will help you in this scope:

Oh, and if you found these resources useful, don’t forget to support me by starring the repo on GitHub!