Reference library

OOP & classes

Classes, instances, methods, dataclasses, and object-oriented design in Python.

1 match
OOP & classes easy

Add property getter setter validation in Python

Shows how to use @property with a setter to validate values before assigning them in a Python class.

property validation oop
Python
class Temperature:
    def __init__(self, celsius=0):
        self._celsius = celsius  # Use underscore to avoid recursion
    
    @property
    def celsius(self):
        """Getter returns the stored value."""
        return self._celsius
    
    @celsius.setter
    def celsius(self, value):
        """Setter valid…
16 0 Open

Browse by section

Each section groups closely related Python snippets.

OOP & classes — Python code examples

What you will find here

This page collects oop & classes snippets — short, copy-ready Python you can paste into our free online IDE and run without installing anything. Each sample includes a plain-English explanation and the full source code.

Samples vs tutorials and challenges

Samples are quick reference — one concept per page. For step-by-step teaching, use our Python tutorials. To test yourself, try quizzes or coding challenges. Clean up style with the Python formatter.