Practice Arena

Python Coding
Challenges

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467 challenges 330 easy 120 medium 17 hard

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All Python Basics Strings & Text Lists & Arrays Dicts & Sets Functions & Closures OOP & Classes Data Structures & Algorithms Advanced Python Iterators & Generators Decorators & Context Managers Error Handling & Exceptions Regular Expressions Math & Number Theory Bit Manipulation Dynamic Programming Trees & Binary Trees Graphs & Graph Algorithms Recursion & Backtracking Greedy Algorithms Binary Search Two Pointers & Sliding Window Stacks & Queues Heaps & Priority Queues Linked Lists Matrix & 2D Arrays Datetime & Time Calculations Data Formats & Parsing SQL & SQLite Numpy & Vectorized Computing Cryptography & Hashing

Python Basics easy

Cycle a List Once

Implement a function that rotates a list right by one position.

lists rotation indexing

Strings & Text easy

Is rotation of another string

Write a function to determine if one string is a rotation of another string.

strings rotation membership

Strings & Text easy

Rotate String Right

Implement a function that rotates a given string to the right by a specified number of positions, handling shifts larger than the string length.

strings rotation slicing

Lists & Arrays easy

Rotate Left by k

Implement a function that rotates a list left by k positions.

rotation lists slicing

Bit Manipulation easy

Rotate Bits Left

Implement a function that rotates the bits of an integer to the left by a specified number of positions.

bit-manipulation integer rotation

Showing 5 challenges

Guide: free Python coding challenges

Practice Python by solving problems

PythonSkillset challenges are hands-on coding exercises from beginner to advanced. Open a challenge, read the problem, write Python in the split-pane editor, and run tests with Pyodide — no install required.

How to use the arena

Pick a category — basics, algorithms, strings, and more
Open a challenge, read the statement, and edit the starter code
Run tests, fix failures, then try a related quiz or tutorial lesson

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.