Exercises

Decorators have a huge range of uses, so you can probably think of some yourself after reading this chapter, but you can easily elaborate on some of the decorators we wrote earlier:

• Extend the track function to monitor execution time.
• Extend the track function with min/max/average execution time and call count.
• Modify the memoization function to function with unhashable types.
• Modify the memoization function to have a cache per function instead of a global one.
• Create a version of functools.cached_property that can be recalculated as needed.
• Create a single-dispatch decorator that considers all or a configurable number of arguments instead of only the first one.
• Enhance the type_check decorator to include additional checks such as requiring a number to be greater than or less than a given value.

Example answers for these exercises can be found on GitHub: https://github.com/mastering-python/exercises. You are...