Who this book is for

This is advanced Python. You'll need to be quite familiar with Python 3. You'll also benefit from having fairly large or complex problems to solve.

If you are a skilled programmer with the other languages, you may find this book helpful if you want to switch to Python. This book doesn't introduce syntax or other foundational concepts.

Advanced Python 2 programmers may find this helpful when they switch to Python 3. We won't cover any of the conversion utilities (such as from Version 2 to 3) or any of the coexistence libraries (such as six.) This book is focused on new development that has happened entirely in Python 3.