What are Python decorators and how can I chain them?

What are Python decorators and how can I chain them?

Python decorators are functions that modify the behavior of another function. Chaining decorators means applying multiple decorators to a single function.

Can you give me an example of chaining decorators?

Sure! Here's a simple example:

def decorator_one(func):
    def wrapper():
        print('Decorator One')
        return func()
    return wrapper


def decorator_two(func):
    def wrapper():
        print('Decorator Two')
        return func()
    return wrapper

@decorator_one
@decorator_two
def my_function():
    print('Hello, World!')

my_function()

This will print:

Decorator One
Decorator Two
Hello, World!

What happens if I change the order of the decorators?

Changing the order of decorators affects the output and behavior. The decorator closest to the function is applied first. For example, if you switch them, decorator_two will execute before decorator_one.