Python Decorator: Exercises, Solutions, and Practice

Python Decorator [ 12 exercises with solution ]

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Python decorators are a way to modify a function or class's behavior without directly modifying its code. They allow you to wrap a function or class around another function, adding additional functionality before, after, or around the original function's execution. Decorators are denoted by the @ symbol followed by the name of the decorator function. They provide a concise and reusable way to extend Python code functionality. They are commonly used for logging, authentication, caching, and more.

1. Write a Python program to create a decorator that logs the arguments and return value of a function.
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2. Write a Python program to create a decorator function to measure the execution time of a function.
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3. Write a Python program to create a decorator to convert the return value of a function to a specified data type.
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4. Write a Python program that implements a decorator to cache the result of a function.
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5. Write a Python program that implements a decorator to validate function arguments based on a given condition.
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6. Write a Python program that implements a decorator to retry a function multiple times in case of failure.
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7. Write a Python program that implements a decorator to enforce rate limits on a function.
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8. Write a Python program that implements a decorator to add logging functionality to a function.
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9. Write a Python program that implements a decorator to handle exceptions raised by a function and provide a default response.
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10. Write a Python program that implements a decorator to enforce type checking on the arguments of a function.
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11. Write a Python program that implements a decorator to measure the memory usage of a function.
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12. Write a Python program that implements a decorator to provide caching with expiration time for a function.
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