Practice Arena

Python Coding
Challenges

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

925 challenges 556 easy 323 medium 46 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

Count word occurrences

Write a function that takes a sentence and returns a dictionary of word counts.

strings counting dictionaries

Python Basics easy

Parse environment variables

Write parse_env_vars that parses KEY=VALUE lines into a dict, converting booleans/numbers and ignoring comments.

strings parsing dictionaries

Python Basics easy

Filter by Age

Filter a list of person dictionaries by age and return their names.

loops conditionals dictionaries

Python Basics easy

Rank Employees by Salary

Sort a list of employee dictionaries by salary descending, tie-break by name, and return ranked strings.

sorting dictionaries lists

Showing 1–4 of 4 challenges · easy · Python Basics

Python Basics — Python coding challenges

What you will find here

This page lists python basics 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.