| 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 |
| 3.2.4 3.2.3 2013 PSF yes |
| 3.3.0 3.2 2012 PSF yes |
| 3.3.1 3.3.0 2013 PSF yes |
| 3.4.0 3.3.0 2014 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, 2013 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. |