You can do a free online course. For example, MIT Open Courseware Introduction to Computer Science and Programming, OCW Scholar version. (Google for "ocw 6.00sc" to find it.)
Or you could buy a Python book, download Python to your computer, and work through the book. For example, "Learning Python," by Lutz and Ascher.
Last edited by photodad; 07-03-2013 at 12:34 PM.