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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

Functions & Closures medium

Memoize decorator

Implement a @memoize decorator that caches results of a function.

decorators closures caching

Functions & Closures medium

Function composition

Return a function that applies f after g: compose(f, g)(x) == f(g(x)).

functional closures higher-order

Functions & Closures hard

Curry a function

Auto-curry any multi-argument function so it returns partial applications until fully saturated.

functional closures inspect

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