Summary  
This chapter explains that variables defined inside a function exist only within that function’s scope and cannot be accessed globally.  

General domain of usage  
Modular code design and scope management in functions

A local variable is defined inside a function. You cannot access this variable outside the function's definition.

def greet():
    message = "Aloha"
    print(message, "# local message")

greet()
print(message)  # This line will result in an error

The output is:
``` python
Aloha # local message
NameError: name 'message' is not defined
```


The ***message*** variable is **not accessible** in the **global scope**; it exists only inside the function. When the function exits, this variable ceases to exist.

In this course, you will learn advanced topics such as function arguments, iterators, generators, closures, and decorators. Dozens of practice exercises will help you grasp these topics.

You'll find this topic enjoyable, and you'll learn how to pack and unpack values in a single assignment.

Explore the power of Python's function arguments, *args, **kwargs, and learn how to effectively use functions as arguments.

Discover the higher-order functions and how functions can be passed as arguments to other functions in programming.

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.

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.

Local Variables in Python: Understanding Function-Level Scope

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Local Variables in Python: Understanding Function-Level Scope