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Practice Arena

Python Coding
Challenges

Write real Python in the browser. Instant feedback. From beginner to expert.

56 challenges 25 easy 23 medium 8 hard

All Easy Medium Hard

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All Python Basics Strings & Text Lists & Arrays Dicts & Sets Functions & Closures OOP & Classes Data Structures & Algorithms Advanced Python

OOP & Classes easy

Stack class

Implement a Stack class with push, pop, peek, is_empty, and size.

OOP stack data-structures

OOP & Classes medium

Linked list reversal

Implement a singly linked list and a function to reverse it in place.

linked-list OOP pointers

OOP & Classes medium

Matrix addition operator

Implement a Matrix class that supports + and * operators.

OOP dunder matrix

Showing 3 challenges · OOP & Classes

OOP & Classes — Python coding challenges

What you will find here

This page lists oop & classes challenges — real Python problems you solve in the browser IDE with instant test feedback. Each challenge includes a clear brief, starter code, and automated checks.

Challenges vs tutorials and quizzes

Challenges test what you can build under constraints. For guided teaching, use our Python tutorials. For quick checks, try quizzes or copy snippets from code samples.