Once Decorator: Run a Function Only Once
Implement a decorator that caches and returns the result of the first call for subsequent calls.
Timing Decorator
Implement a decorator that prints the execution time of a function.
Context Manager Class
Implement a context manager class that measures execution time and sets duration, with None if an exception occurred.
Print Args Decorator
Write a decorator that prints function name and arguments, then returns the original result.
File Open Context Manager
Create a class that acts as a context manager for opening a virtual file in memory.
Timer Context Manager
Implement a context manager that measures execution time of a with block and stores it.
Suppress stderr manager
Implement a context manager that suppresses all output written to stderr during its block.
Context Decorator Dual
Implement a timing decorator and a context manager that both record elapsed time in seconds.
Showing 8 challenges · easy · Decorators & Context Managers
Decorators & Context Managers — Python coding challenges
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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.
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