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1 A. HISTORY OF THE SOFTWARE
2 ==========================
4 Python was created in the early 1990s by Guido van Rossum at Stichting
5 Mathematisch Centrum (CWI, see http://www.cwi.nl) in the Netherlands
6 as a successor of a language called ABC. Guido remains Python's
7 principal author, although it includes many contributions from others.
9 In 1995, Guido continued his work on Python at the Corporation for
10 National Research Initiatives (CNRI, see http://www.cnri.reston.va.us)
11 in Reston, Virginia where he released several versions of the
12 software.
14 In May 2000, Guido and the Python core development team moved to
15 BeOpen.com to form the BeOpen PythonLabs team. In October of the same
16 year, the PythonLabs team moved to Digital Creations (now Zope
17 Corporation, see http://www.zope.com). In 2001, the Python Software
18 Foundation (PSF, see http://www.python.org/psf/) was formed, a
19 non-profit organization created specifically to own Python-related
20 Intellectual Property. Zope Corporation is a sponsoring member of
21 the PSF.
23 All Python releases are Open Source (see http://www.opensource.org for
24 the Open Source Definition). Historically, most, but not all, Python
25 releases have also been GPL-compatible; the table below summarizes
26 the various releases.
28 Release Derived Year Owner GPL-
29 from compatible? (1)
31 0.9.0 thru 1.2 1991-1995 CWI yes
32 1.3 thru 1.5.2 1.2 1995-1999 CNRI yes
33 1.6 1.5.2 2000 CNRI no
34 2.0 1.6 2000 BeOpen.com no
35 1.6.1 1.6 2001 CNRI yes (2)
36 2.1 2.0+1.6.1 2001 PSF no
37 2.0.1 2.0+1.6.1 2001 PSF yes
38 2.1.1 2.1+2.0.1 2001 PSF yes
39 2.2 2.1.1 2001 PSF yes
40 2.1.2 2.1.1 2002 PSF yes
41 2.1.3 2.1.2 2002 PSF yes
42 2.2.1 2.2 2002 PSF yes
43 2.2.2 2.2.1 2002 PSF yes
44 2.2.3 2.2.2 2003 PSF yes
45 2.3 2.2.2 2002-2003 PSF yes
46 2.3.1 2.3 2002-2003 PSF yes
47 2.3.2 2.3.1 2002-2003 PSF yes
48 2.3.3 2.3.2 2002-2003 PSF yes
49 2.3.4 2.3.3 2004 PSF yes
50 2.3.5 2.3.4 2005 PSF yes
51 2.4 2.3 2004 PSF yes
52 2.4.1 2.4 2005 PSF yes
53 2.4.2 2.4.1 2005 PSF yes
54 2.4.3 2.4.2 2006 PSF yes
55 2.4.4 2.4.3 2006 PSF yes
56 2.5 2.4 2006 PSF yes
57 2.5.1 2.5 2007 PSF yes
58 2.5.2 2.5.1 2008 PSF yes
59 2.5.3 2.5.2 2008 PSF yes
60 2.6 2.5 2008 PSF yes
61 2.6.1 2.6 2008 PSF yes
62 2.6.2 2.6.1 2009 PSF yes
63 2.6.3 2.6.2 2009 PSF yes
64 2.6.4 2.6.3 2009 PSF yes
65 2.6.5 2.6.4 2010 PSF yes
66 3.0 2.6 2008 PSF yes
67 3.0.1 3.0 2009 PSF yes
68 3.1 3.0.1 2009 PSF yes
69 3.1.1 3.1 2009 PSF yes
70 3.1.2 3.1.1 2010 PSF yes
71 3.1.3 3.1.2 2010 PSF yes
72 3.1.4 3.1.3 2011 PSF yes
73 3.2 3.1 2011 PSF yes
74 3.2.1 3.2 2011 PSF yes
75 3.2.2 3.2.1 2011 PSF yes
76 3.2.3 3.2.2 2012 PSF yes
77 3.3.0 3.2 2012 PSF yes
79 Footnotes:
81 (1) GPL-compatible doesn't mean that we're distributing Python under
82 the GPL. All Python licenses, unlike the GPL, let you distribute
83 a modified version without making your changes open source. The
84 GPL-compatible licenses make it possible to combine Python with
85 other software that is released under the GPL; the others don't.
87 (2) According to Richard Stallman, 1.6.1 is not GPL-compatible,
88 because its license has a choice of law clause. According to
89 CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1
90 is "not incompatible" with the GPL.
92 Thanks to the many outside volunteers who have worked under Guido's
93 direction to make these releases possible.
96 B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON
97 ===============================================================
99 PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
100 --------------------------------------------
102 1. This LICENSE AGREEMENT is between the Python Software Foundation
103 ("PSF"), and the Individual or Organization ("Licensee") accessing and
104 otherwise using this software ("Python") in source or binary form and
105 its associated documentation.
107 2. Subject to the terms and conditions of this License Agreement, PSF hereby
108 grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
109 analyze, test, perform and/or display publicly, prepare derivative works,
110 distribute, and otherwise use Python alone or in any derivative version,
111 provided, however, that PSF's License Agreement and PSF's notice of copyright,
112 i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
113 2011, 2012 Python Software Foundation; All Rights Reserved" are retained in Python
114 alone or in any derivative version prepared by Licensee.
116 3. In the event Licensee prepares a derivative work that is based on
117 or incorporates Python or any part thereof, and wants to make
118 the derivative work available to others as provided herein, then
119 Licensee hereby agrees to include in any such work a brief summary of
120 the changes made to Python.
122 4. PSF is making Python available to Licensee on an "AS IS"
123 basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
124 IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
125 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
126 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT
127 INFRINGE ANY THIRD PARTY RIGHTS.
129 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
130 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
131 A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
132 OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
134 6. This License Agreement will automatically terminate upon a material
135 breach of its terms and conditions.
137 7. Nothing in this License Agreement shall be deemed to create any
138 relationship of agency, partnership, or joint venture between PSF and
139 Licensee. This License Agreement does not grant permission to use PSF
140 trademarks or trade name in a trademark sense to endorse or promote
141 products or services of Licensee, or any third party.
143 8. By copying, installing or otherwise using Python, Licensee
144 agrees to be bound by the terms and conditions of this License
145 Agreement.
148 BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
149 -------------------------------------------
151 BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
153 1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an
154 office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the
155 Individual or Organization ("Licensee") accessing and otherwise using
156 this software in source or binary form and its associated
157 documentation ("the Software").
159 2. Subject to the terms and conditions of this BeOpen Python License
160 Agreement, BeOpen hereby grants Licensee a non-exclusive,
161 royalty-free, world-wide license to reproduce, analyze, test, perform
162 and/or display publicly, prepare derivative works, distribute, and
163 otherwise use the Software alone or in any derivative version,
164 provided, however, that the BeOpen Python License is retained in the
165 Software, alone or in any derivative version prepared by Licensee.
167 3. BeOpen is making the Software available to Licensee on an "AS IS"
168 basis. BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
169 IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND
170 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
171 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT
172 INFRINGE ANY THIRD PARTY RIGHTS.
174 4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE
175 SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS
176 AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY
177 DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
179 5. This License Agreement will automatically terminate upon a material
180 breach of its terms and conditions.
182 6. This License Agreement shall be governed by and interpreted in all
183 respects by the law of the State of California, excluding conflict of
184 law provisions. Nothing in this License Agreement shall be deemed to
185 create any relationship of agency, partnership, or joint venture
186 between BeOpen and Licensee. This License Agreement does not grant
187 permission to use BeOpen trademarks or trade names in a trademark
188 sense to endorse or promote products or services of Licensee, or any
189 third party. As an exception, the "BeOpen Python" logos available at
190 http://www.pythonlabs.com/logos.html may be used according to the
191 permissions granted on that web page.
193 7. By copying, installing or otherwise using the software, Licensee
194 agrees to be bound by the terms and conditions of this License
195 Agreement.
198 CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
199 ---------------------------------------
201 1. This LICENSE AGREEMENT is between the Corporation for National
202 Research Initiatives, having an office at 1895 Preston White Drive,
203 Reston, VA 20191 ("CNRI"), and the Individual or Organization
204 ("Licensee") accessing and otherwise using Python 1.6.1 software in
205 source or binary form and its associated documentation.
207 2. Subject to the terms and conditions of this License Agreement, CNRI
208 hereby grants Licensee a nonexclusive, royalty-free, world-wide
209 license to reproduce, analyze, test, perform and/or display publicly,
210 prepare derivative works, distribute, and otherwise use Python 1.6.1
211 alone or in any derivative version, provided, however, that CNRI's
212 License Agreement and CNRI's notice of copyright, i.e., "Copyright (c)
213 1995-2001 Corporation for National Research Initiatives; All Rights
214 Reserved" are retained in Python 1.6.1 alone or in any derivative
215 version prepared by Licensee. Alternately, in lieu of CNRI's License
216 Agreement, Licensee may substitute the following text (omitting the
217 quotes): "Python 1.6.1 is made available subject to the terms and
218 conditions in CNRI's License Agreement. This Agreement together with
219 Python 1.6.1 may be located on the Internet using the following
220 unique, persistent identifier (known as a handle): 1895.22/1013. This
221 Agreement may also be obtained from a proxy server on the Internet
222 using the following URL: http://hdl.handle.net/1895.22/1013".
224 3. In the event Licensee prepares a derivative work that is based on
225 or incorporates Python 1.6.1 or any part thereof, and wants to make
226 the derivative work available to others as provided herein, then
227 Licensee hereby agrees to include in any such work a brief summary of
228 the changes made to Python 1.6.1.
230 4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS"
231 basis. CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
232 IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND
233 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
234 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT
235 INFRINGE ANY THIRD PARTY RIGHTS.
237 5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
238 1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
239 A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1,
240 OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
242 6. This License Agreement will automatically terminate upon a material
243 breach of its terms and conditions.
245 7. This License Agreement shall be governed by the federal
246 intellectual property law of the United States, including without
247 limitation the federal copyright law, and, to the extent such
248 U.S. federal law does not apply, by the law of the Commonwealth of
249 Virginia, excluding Virginia's conflict of law provisions.
250 Notwithstanding the foregoing, with regard to derivative works based
251 on Python 1.6.1 that incorporate non-separable material that was
252 previously distributed under the GNU General Public License (GPL), the
253 law of the Commonwealth of Virginia shall govern this License
254 Agreement only as to issues arising under or with respect to
255 Paragraphs 4, 5, and 7 of this License Agreement. Nothing in this
256 License Agreement shall be deemed to create any relationship of
257 agency, partnership, or joint venture between CNRI and Licensee. This
258 License Agreement does not grant permission to use CNRI trademarks or
259 trade name in a trademark sense to endorse or promote products or
260 services of Licensee, or any third party.
262 8. By clicking on the "ACCEPT" button where indicated, or by copying,
263 installing or otherwise using Python 1.6.1, Licensee agrees to be
264 bound by the terms and conditions of this License Agreement.
266 ACCEPT
269 CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
270 --------------------------------------------------
272 Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam,
273 The Netherlands. All rights reserved.
275 Permission to use, copy, modify, and distribute this software and its
276 documentation for any purpose and without fee is hereby granted,
277 provided that the above copyright notice appear in all copies and that
278 both that copyright notice and this permission notice appear in
279 supporting documentation, and that the name of Stichting Mathematisch
280 Centrum or CWI not be used in advertising or publicity pertaining to
281 distribution of the software without specific, written prior
282 permission.
284 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
285 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
286 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
287 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
288 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
289 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
290 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.