Administrator's Guide

Appendix E. License Conditions
Modules under this license
openswan 2.4.13
The Python license
A. HISTORY OF THE SOFTWARE
Python was created in the early 1990s by Guido van Rossum at Stichting Mathematisch Cen-
trum (CWI, see http://www.cwi.nl/) in the Netherlands as a successor of a language called
ABC. Guido remains Python’s principal author, although it includes many contributions
from others.
In 1995, Guido continued his work on Python at the Corporation for National Research
Initiatives (CNRI, see http://www.cnri.reston.va.us/) in Reston, Virginia where he released
several versions of the software.
In May 2000, Guido and the Python core development team moved to BeOpen.com to form
the BeOpen PythonLabs team. In October of the same year, the PythonLabs team moved to
Digital Creations (now Zope Corporation, see http://www.zope.com/). In 2001, the Python
Software Foundation (PSF, see http://www.python.org/psf/) was formed, a non-profit orga-
nization created specifically to own Python-related Intellectual Property. Zope Corporation
is a sponsoring member of the PSF.
All Python releases are Open Source (see http://www.opensource.org/ for the Open Source
Definition). Historically, most, but not all, Python releases have also been GPL-compatible;
the table below summarizes the various releases.
Release Derived
from
Year Owner GPL- compatible?
(1)
0.9.0 thru 1.2 1991-1995 CWI yes
1.3 thru 1.5.2 1.2 1995-1999 CNRI yes
1.6 1.5.2 2000 CNRI no
2.0 1.6 2000 BeOpen.com no
1.6.1 1.6 2001 CNRI yes (2)
2.1 2.0+1.6.1 2001 PSF no
2.0.1 2.0+1.6.1 2001 PSF yes
2.1.1 2.1+2.0.1 2001 PSF yes
2.2 2.1.1 2001 PSF yes
2.1.2 2.1.1 2002 PSF yes
2.1.3 2.1.2 2002 PSF yes
2.2.1 2.2 2002 PSF yes
2.2.2 2.2.1 2002 PSF yes
2.2.3 2.2.2 2003 PSF yes
2.3 2.2.2 2002-2003 PSF yes
2.3.1 2.3 2002-2003 PSF yes
2.3.2 2.3.1 2002-2003 PSF yes
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