A Whirlwind Tour of Python (Charles Severance)
This book a fast-paced introduction to essential features of the Python language, aimed at researchers and developers who are already familiar with programming in another language, particularly for using Python for data science and/or scientific programming.

The Coder's Apprentice: Learning Programming with Python 3
This book is aimed at teaching Python 3 to students and teenagers who are completely new to programming, assumes no previous knowledge of programming on the part of the students, and contains numerous exercises to train their programming skills.

Python for Everybody: Exploring Data in Python 3
This book is designed to introduce students to programming and software development through the lens of exploring data. You can think of the Python programming language as your tool to solve data problems that are beyond the capability of a spreadsheet.

Python Notes for Professionals (Stack Overflow Contributors)
This book is compiled from Stack Overflow Documentation, the content is written by the beautiful people at Stack Overflow. Text content is released under Creative Commons BY-SA. See credits at the end of this book whom contributed to the various chapters.

Fast Lane to Python (Norm Matloff)
his book aims to enable the reader to quickly acquire a Python foundation. The material particularly feel quite comfortable to anyone with background in an object-oriented programming (OOP) language such as C++ or Java.