Function Decorators
Explore how to use function decorators in Python to apply reusable logic such as retry mechanisms and parameter validation. Understand how decorators promote maintainability by separating concerns and following the DRY principle.
We'll cover the following...
We'll cover the following...
Functions are probably the simplest representation of a Python object that can be decorated. We can use decorators on functions to apply all sorts of logic to them—we can validate parameters, check preconditions, change the behavior entirely, modify its signature, cache results (create a memoized version of the original function), and more.
As an example, we will create a basic decorator that implements a retry ...