Reference library

OOP & classes

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

1 match
OOP & classes medium

How to Implement the State Pattern in Python

Implement the State design pattern in Python by delegating behavior to state objects, letting a media player change actions dynamically without if-else chains.

state-pattern design-patterns oop
Python 
class State:
    def play(self, player): pass
    def pause(self, player): pass
    def stop(self, player): pass

class PlayingState(State):
    def play(self, player):
        return "Already playing"
    def pause(self, player):
        player.state = PausedState()
        return "Pausing playback"
    def stop(self…
12 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.

Related coding tools

Free online Python IDE Write and run Python in your browser — no install. Free Python code formatter Format with autopep8 — side-by-side PEP 8 cleanup. Python code samples Copy-ready snippets to study and run in the IDE.