Define A Decorator Function Log

A decorator is a special kind of declaration that can be attached to a class declaration method accessor property or parameter.

Define a decorator function log. And the result should be something like. A function that takes another function as an argument generates a new function augmenting the work of the original function and returning the generated function so we can use it anywhere. F 1 pippo 4 paperino luca enter f a 1 b 2 pippo 4 paperino luca exit f.

Decorators are a sort of syntactic sugar for something very simple. A simple decorator named log. Define a decorator function log which logs information on a function and the arguments passed to itdef log func.

Stdout accessed the function with arguments format func name args kwdargs return stdout return inner def greet msg. Def inner args kwdargs. But now it looks pretty since it got decorated.

The nature of the object that got decorated actual gift inside does not alter. My current implementation is this. A decorator decorates a class or method and provides some extra functionality at initialisation time i e.

Decorator to print function call details. It should work like this. When you place a decorator in front of a function you re actually saying you want to pass that function to another function.

Parameters names and effective values. This sounds confusing but it s really not especially after you ve seen a few examples of how decorators work. We can see that the decorator function added some new functionality to the original function.