In this recipe, we will create a nice working slideshow GUI using pure Python.
We will see the limitations the core Python built-ins have, and then we will explore another third-party module available called Pillow, which extends tkinter's built-in functionality in regards to image processing.
While the name Pillow might sound a little bit strange at first, it actually comes with a lot of history behind it.
We are only using Python 3.4 and above in this book.
We are not going back to Python 2.
Guido has expressed his decision to intentionally break backwards compatibility and has decided that Python 3 is the future of Python programming.
For GUIs and images, the older line of Python 2 has this very powerful module ...