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Python Coding
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925 challenges 556 easy 323 medium 46 hard

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Decorators & Context Managers easy

Once Decorator: Run a Function Only Once

Implement a decorator that caches and returns the result of the first call for subsequent calls.

decorators closures caching

Decorators & Context Managers easy

Timing Decorator

Implement a decorator that prints the execution time of a function.

decorators time performance

Decorators & Context Managers medium

Memoize with TTL

Implement a decorator that caches function results for a limited time, returning cached values within the TTL and recomputing after expiry.

decorators memoization caching

Decorators & Context Managers medium

LRU Memoize

Implement an LRU memoization decorator that caches results for a fixed number of arguments.

decorators caching lru

Decorators & Context Managers medium

Cache result decorator

Create a decorator that stores results of function calls keyed by positional arguments.

decorators memoization functools

Decorators & Context Managers medium

Profile time decorator

Create a decorator that tracks how many times a function is called and its cumulative execution time.

decorators timing profiling

Decorators & Context Managers easy

Print Args Decorator

Write a decorator that prints function name and arguments, then returns the original result.

decorators functions wrappers

Decorators & Context Managers easy

Log Calls Decorator

Create a decorator that prints call details and returns the original result.

decorators logging function-wrappers

Decorators & Context Managers medium

Benchmark decorator

Implement a benchmarking decorator that records call count and timing statistics per function.

decorators timing functools

Decorators & Context Managers easy

Class-based decorator with call validation

Build a class-based decorator that validates a single argument's type and logs successful invocation.

decorators class validation

Showing 1–10 of 10 challenges · Decorators & Context Managers

Decorators & Context Managers — Python coding challenges

What you will find here

This page lists decorators & context managers 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.