Sponsored Reserved space — layout preview until AdSense is connected

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

Sponsored Reserved space — layout preview until AdSense is connected

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

Python Basics easy

Sum of digits

Return the sum of all decimal digits of a non-negative integer.

arithmetic loops

Python Basics easy

Collatz steps

Count how many steps the Collatz sequence takes to reach 1 from n.

Python Basics easy

Factorial (iterative)

Compute n! iteratively without recursion.

Python Basics easy

Prime checker

Return True if n is a prime number.

Showing 4 challenges · easy · filtered by category