Copying Docutils

Most of the files included in this project are in the public domain, and therefore have no license requirement and no restrictions on copying or usage. The exceptions are:

• docutils/optik.py, copyright Gregory P. Ward, released under a BSD-style license (which can be found in the module's source code).
• docutils/roman.py, copyright by Mark Pilgrim, released under the Python 2.1.1 license.
• test/difflib.py, copyright by the Python Software Foundation, released under the Python 2.2 license. This file is included for compatibility with Python versions less than 2.2; if you have Python 2.2 or higher, difflib.py is not needed and may be removed. (It's only used to report test failures anyhow; it isn't installed anywhere. The included file is a pre-generator version of the difflib.py module included in Python 2.2.)

(Disclaimer: I am not a lawyer.) Both the BSD license and the Python license are OSI-approved and GPL-compatible. Although complicated by multiple owners and lots of legalese, the Python license basically lets you copy, use, modify, and redistribute files as long as you keep the copyright attribution intact, note any changes you make, and don't use the owner's name in vain. The BSD license is similar.