What is variable scope, and how did we manage without it before? This topic is essential for understanding the following subjects: Closures and Decorators. I assure you that this topic will be both enjoyable and practical. You will gain knowledge about local, nonlocal, and global variables.

Global Variable

Local Variable

Challenge: Modifying a Global Variable

Nested Functions

Nonlocal Variable

Closures

Challenge: Threshold Checker

5. Decorators

This section provides an in-depth exploration of Python decorators, a powerful feature that allows for the modification and enhancement of function behavior. Participants will learn how to write their own decorators, understand built-in decorators, and apply decorators in practical scenarios.

Introduction to Decorators

Syntax

Challenge: Create Your Decorator

Decorators with Parameters

Chaining Decorators

Challenge: Basic Smores Recipe

Practical Examples of Decorator Usage

Challenge: The Champions League

Tarea

Imagine we have a table with the final results of the qualification round for the Champions League. Let's store the teams with first and second place in the team_a and team_b. The third team save in the team_c variable. Save the team with the fewest points in the last team_d variable. We will use these variables to print the announcements.

Please don't change the print statements and the function.

Your task is simply to unpack the list group_c within the function call parameters.