9.7 Where to Learn Python
Below is a very basic list of some free, online, Python tutorials. (Note: some of the tutorials are for Python 2.7, but are incredibly well made, and thus included).
Khan Academy https://www.khanacademy.org/science/computer-science
Google Developers https://developers.google.com/edu/python/?csw=1
Learn Python The Hard Way http://learnpythonthehardway.org/