From the first chapter of this book, we have been adding Flask extensions to our app in order to add new features and to save us from spending lots of time reinventing the wheel. Up to this point, it has been unknown how these Flask extensions worked.
In this chapter, we'll learn about the following topics:
- How to create two simple Flask extensions in order to better understand Flask internals and allow you to extend Flask with your own functionality
- How to extend Jinja
- How to create a Python package, ready to be published to PyPI
