Matt Harrison on Twitter: "I often teach about Decorators in Python. Many know how to use them, but few can write them. These are tricky because nested functions make our brains hurt.
Python Decorators: A Step-By-Step Introduction – dbader.org
Decorator in Python | How to Use Decorators in Python with Examples
How to Use Decorators in Python, by example - Learning Actors
closures - Trying to Understand this bit of Python code on the topic of decorators - Stack Overflow