Dive Into Python 3 comprises original prose and graphics licensed under the CC-BY-SA-3.0 license. Illustrations from the Open Clip Art Library are public domain.

The chardet library is licensed under the LGPL 2.1 or later. The alphametics solver is a port of Raymond Hettinger’s version, released under the MIT license. Several chapters contain code from the Python standard library, released under the PSF License 2.0. All other original code is licensed under the MIT license.

The online edition uses jQuery, released under the MIT and GPL licenses. Color syntax highlighting is provided by prettify.js, other parsing code is adapted from highlighter.js; both are released under the Apache License 2.0.

Corrections and feedback to mark@diveintomark.org or on Github.