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- A. HISTORY OF THE SOFTWARE
- ==========================
- Python was created in the early 1990s by Guido van Rossum at Stichting
- Mathematisch Centrum (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 organization 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 Year Owner GPL-
- from 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
- 2.3.3 2.3.2 2002-2003 PSF yes
- 2.3.4 2.3.3 2004 PSF yes
- 2.3.5 2.3.4 2005 PSF yes
- 2.4 2.3 2004 PSF yes
- 2.4.1 2.4 2005 PSF yes
- 2.4.2 2.4.1 2005 PSF yes
- 2.4.3 2.4.2 2006 PSF yes
- 2.4.4 2.4.3 2006 PSF yes
- 2.5 2.4 2006 PSF yes
- 2.5.1 2.5 2007 PSF yes
- 2.5.2 2.5.1 2008 PSF yes
- 2.5.3 2.5.2 2008 PSF yes
- 2.6 2.5 2008 PSF yes
- 2.6.1 2.6 2008 PSF yes
- 2.6.2 2.6.1 2009 PSF yes
- 2.6.3 2.6.2 2009 PSF yes
- 2.6.4 2.6.3 2009 PSF yes
- 2.6.5 2.6.4 2010 PSF yes
- 3.0 2.6 2008 PSF yes
- 3.0.1 3.0 2009 PSF yes
- 3.1 3.0.1 2009 PSF yes
- 3.1.1 3.1 2009 PSF yes
- 3.1.2 3.1.1 2010 PSF yes
- 3.1.3 3.1.2 2010 PSF yes
- 3.1.4 3.1.3 2011 PSF yes
- 3.2 3.1 2011 PSF yes
- 3.2.1 3.2 2011 PSF yes
- 3.2.2 3.2.1 2011 PSF yes
- 3.2.3 3.2.2 2012 PSF yes
- Footnotes:
- (1) GPL-compatible doesn't mean that we're distributing Python under
- the GPL. All Python licenses, unlike the GPL, let you distribute
- a modified version without making your changes open source. The
- GPL-compatible licenses make it possible to combine Python with
- other software that is released under the GPL; the others don't.
- (2) According to Richard Stallman, 1.6.1 is not GPL-compatible,
- because its license has a choice of law clause. According to
- CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1
- is "not incompatible" with the GPL.
- Thanks to the many outside volunteers who have worked under Guido's
- direction to make these releases possible.
- B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON
- ===============================================================
- PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
- --------------------------------------------
- 1. This LICENSE AGREEMENT is between the Python Software Foundation
- ("PSF"), and the Individual or Organization ("Licensee") accessing and
- otherwise using this software ("Python") in source or binary form and
- its associated documentation.
- 2. Subject to the terms and conditions of this License Agreement, PSF hereby
- grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
- analyze, test, perform and/or display publicly, prepare derivative works,
- distribute, and otherwise use Python alone or in any derivative version,
- provided, however, that PSF's License Agreement and PSF's notice of copyright,
- i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
- 2011, 2012 Python Software Foundation; All Rights Reserved" are retained in Python
- alone or in any derivative version prepared by Licensee.
- 3. In the event Licensee prepares a derivative work that is based on
- or incorporates Python or any part thereof, and wants to make
- the derivative work available to others as provided herein, then
- Licensee hereby agrees to include in any such work a brief summary of
- the changes made to Python.
- 4. PSF is making Python available to Licensee on an "AS IS"
- basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
- IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
- DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
- FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
- INFRINGE ANY THIRD PARTY RIGHTS.
- 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
- FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
- A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
- OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
- 6. This License Agreement will automatically terminate upon a material
- breach of its terms and conditions.
- 7. Nothing in this License Agreement shall be deemed to create any
- relationship of agency, partnership, or joint venture between PSF and
- Licensee. This License Agreement does not grant permission to use PSF
- trademarks or trade name in a trademark sense to endorse or promote
- products or services of Licensee, or any third party.
- 8. By copying, installing or otherwise using Python, Licensee
- agrees to be bound by the terms and conditions of this License
- Agreement.
- BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
- -------------------------------------------
- BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
- 1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an
- office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the
- Individual or Organization ("Licensee") accessing and otherwise using
- this software in source or binary form and its associated
- documentation ("the Software").
- 2. Subject to the terms and conditions of this BeOpen Python License
- Agreement, BeOpen hereby grants Licensee a non-exclusive,
- royalty-free, world-wide license to reproduce, analyze, test, perform
- and/or display publicly, prepare derivative works, distribute, and
- otherwise use the Software alone or in any derivative version,
- provided, however, that the BeOpen Python License is retained in the
- Software, alone or in any derivative version prepared by Licensee.
- 3. BeOpen is making the Software available to Licensee on an "AS IS"
- basis. BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
- IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND
- DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
- FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT
- INFRINGE ANY THIRD PARTY RIGHTS.
- 4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE
- SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS
- AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY
- DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
- 5. This License Agreement will automatically terminate upon a material
- breach of its terms and conditions.
- 6. This License Agreement shall be governed by and interpreted in all
- respects by the law of the State of California, excluding conflict of
- law provisions. Nothing in this License Agreement shall be deemed to
- create any relationship of agency, partnership, or joint venture
- between BeOpen and Licensee. This License Agreement does not grant
- permission to use BeOpen trademarks or trade names in a trademark
- sense to endorse or promote products or services of Licensee, or any
- third party. As an exception, the "BeOpen Python" logos available at
- http://www.pythonlabs.com/logos.html may be used according to the
- permissions granted on that web page.
- 7. By copying, installing or otherwise using the software, Licensee
- agrees to be bound by the terms and conditions of this License
- Agreement.
- CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
- ---------------------------------------
- 1. This LICENSE AGREEMENT is between the Corporation for National
- Research Initiatives, having an office at 1895 Preston White Drive,
- Reston, VA 20191 ("CNRI"), and the Individual or Organization
- ("Licensee") accessing and otherwise using Python 1.6.1 software in
- source or binary form and its associated documentation.
- 2. Subject to the terms and conditions of this License Agreement, CNRI
- hereby grants Licensee a nonexclusive, royalty-free, world-wide
- license to reproduce, analyze, test, perform and/or display publicly,
- prepare derivative works, distribute, and otherwise use Python 1.6.1
- alone or in any derivative version, provided, however, that CNRI's
- License Agreement and CNRI's notice of copyright, i.e., "Copyright (c)
- 1995-2001 Corporation for National Research Initiatives; All Rights
- Reserved" are retained in Python 1.6.1 alone or in any derivative
- version prepared by Licensee. Alternately, in lieu of CNRI's License
- Agreement, Licensee may substitute the following text (omitting the
- quotes): "Python 1.6.1 is made available subject to the terms and
- conditions in CNRI's License Agreement. This Agreement together with
- Python 1.6.1 may be located on the Internet using the following
- unique, persistent identifier (known as a handle): 1895.22/1013. This
- Agreement may also be obtained from a proxy server on the Internet
- using the following URL: http://hdl.handle.net/1895.22/1013".
- 3. In the event Licensee prepares a derivative work that is based on
- or incorporates Python 1.6.1 or any part thereof, and wants to make
- the derivative work available to others as provided herein, then
- Licensee hereby agrees to include in any such work a brief summary of
- the changes made to Python 1.6.1.
- 4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS"
- basis. CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
- IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND
- DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
- FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT
- INFRINGE ANY THIRD PARTY RIGHTS.
- 5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
- 1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
- A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1,
- OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
- 6. This License Agreement will automatically terminate upon a material
- breach of its terms and conditions.
- 7. This License Agreement shall be governed by the federal
- intellectual property law of the United States, including without
- limitation the federal copyright law, and, to the extent such
- U.S. federal law does not apply, by the law of the Commonwealth of
- Virginia, excluding Virginia's conflict of law provisions.
- Notwithstanding the foregoing, with regard to derivative works based
- on Python 1.6.1 that incorporate non-separable material that was
- previously distributed under the GNU General Public License (GPL), the
- law of the Commonwealth of Virginia shall govern this License
- Agreement only as to issues arising under or with respect to
- Paragraphs 4, 5, and 7 of this License Agreement. Nothing in this
- License Agreement shall be deemed to create any relationship of
- agency, partnership, or joint venture between CNRI and Licensee. This
- License Agreement does not grant permission to use CNRI trademarks or
- trade name in a trademark sense to endorse or promote products or
- services of Licensee, or any third party.
- 8. By clicking on the "ACCEPT" button where indicated, or by copying,
- installing or otherwise using Python 1.6.1, Licensee agrees to be
- bound by the terms and conditions of this License Agreement.
- ACCEPT
- CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
- --------------------------------------------------
- Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam,
- The Netherlands. All rights reserved.
- Permission to use, copy, modify, and distribute this software and its
- documentation for any purpose and without fee is hereby granted,
- provided that the above copyright notice appear in all copies and that
- both that copyright notice and this permission notice appear in
- supporting documentation, and that the name of Stichting Mathematisch
- Centrum or CWI not be used in advertising or publicity pertaining to
- distribution of the software without specific, written prior
- permission.
- STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
- THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
- FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
- FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
- OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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