Python Decorator: Exercises, Solutions, and Practice
This resource offers a total of 60 Python Decorator problems for practice. It includes 12 main exercises, each accompanied by solutions, detailed explanations, and four related problems.
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.
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1. Create a Decorator to Log Function Arguments and Return Value
Write a Python program to create a decorator that logs the arguments and return value of a function.
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2. Create a Decorator to Measure Function Execution Time
Write a Python program to create a decorator function to measure the execution time of a function.
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3. Create a decorator to convert function return value type
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. Implement a Decorator to Cache Function Results
Write a Python program that implements a decorator to cache the result of a function.
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5. Implement a Decorator to Validate Function Arguments
Write a Python program that implements a decorator to validate function arguments based on a given condition.
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6. Implement a Decorator to Retry a Function on Failure
Write a Python program that implements a decorator to retry a function multiple times in case of failure.
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7. Implement a Decorator to Enforce Rate Limits on a Function
Write a Python program that implements a decorator to enforce rate limits on a function.
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8. Implement a Decorator to Add Logging Functionality
Write a Python program that implements a decorator to add logging functionality to a function.
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9. Implement a decorator to handle exceptions with a default value
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. Implement a decorator to enforce type checking on arguments
Write a Python program that implements a decorator to enforce type checking on the arguments of a function.
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11. Implement a Decorator to Measure Memory Usage of a Function
Write a Python program that implements a decorator to measure the memory usage of a function.
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12. Implement a Decorator for Caching with Expiration Time
Write a Python program that implements a decorator to provide caching with expiration time for a function.
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