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1 | A. HISTORY OF THE SOFTWARE | |
2 | ========================== | |
3 | ||
4 | Python was created in the early 1990s by Guido van Rossum at Stichting | |
5 | Mathematisch Centrum (CWI, see https://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. | |
8 | ||
9 | In 1995, Guido continued his work on Python at the Corporation for | |
10 | National Research Initiatives (CNRI, see https://www.cnri.reston.va.us) | |
11 | in Reston, Virginia where he released several versions of the | |
12 | software. | |
13 | ||
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, which became | |
17 | Zope Corporation. In 2001, the Python Software Foundation (PSF, see | |
18 | https://www.python.org/psf/) was formed, a non-profit organization | |
19 | created specifically to own Python-related Intellectual Property. | |
20 | Zope Corporation was a sponsoring member of the PSF. | |
21 | ||
22 | All Python releases are Open Source (see https://opensource.org for | |
23 | the Open Source Definition). Historically, most, but not all, Python | |
24 | releases have also been GPL-compatible; the table below summarizes | |
25 | the various releases. | |
26 | ||
27 | Release Derived Year Owner GPL- | |
28 | from compatible? (1) | |
29 | ||
30 | 0.9.0 thru 1.2 1991-1995 CWI yes | |
31 | 1.3 thru 1.5.2 1.2 1995-1999 CNRI yes | |
32 | 1.6 1.5.2 2000 CNRI no | |
33 | 2.0 1.6 2000 BeOpen.com no | |
34 | 1.6.1 1.6 2001 CNRI yes (2) | |
35 | 2.1 2.0+1.6.1 2001 PSF no | |
36 | 2.0.1 2.0+1.6.1 2001 PSF yes | |
37 | 2.1.1 2.1+2.0.1 2001 PSF yes | |
38 | 2.1.2 2.1.1 2002 PSF yes | |
39 | 2.1.3 2.1.2 2002 PSF yes | |
40 | 2.2 and above 2.1.1 2001-now PSF yes | |
41 | ||
42 | Footnotes: | |
43 | ||
44 | (1) GPL-compatible doesn't mean that we're distributing Python under | |
45 | the GPL. All Python licenses, unlike the GPL, let you distribute | |
46 | a modified version without making your changes open source. The | |
47 | GPL-compatible licenses make it possible to combine Python with | |
48 | other software that is released under the GPL; the others don't. | |
49 | ||
50 | (2) According to Richard Stallman, 1.6.1 is not GPL-compatible, | |
51 | because its license has a choice of law clause. According to | |
52 | CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1 | |
53 | is "not incompatible" with the GPL. | |
54 | ||
55 | Thanks to the many outside volunteers who have worked under Guido's | |
56 | direction to make these releases possible. | |
57 | ||
58 | ||
59 | B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON | |
60 | =============================================================== | |
61 | ||
62 | PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2 | |
63 | -------------------------------------------- | |
64 | ||
65 | 1. This LICENSE AGREEMENT is between the Python Software Foundation | |
66 | ("PSF"), and the Individual or Organization ("Licensee") accessing and | |
67 | otherwise using this software ("Python") in source or binary form and | |
68 | its associated documentation. | |
69 | ||
70 | 2. Subject to the terms and conditions of this License Agreement, PSF hereby | |
71 | grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce, | |
72 | analyze, test, perform and/or display publicly, prepare derivative works, | |
73 | distribute, and otherwise use Python alone or in any derivative version, | |
74 | provided, however, that PSF's License Agreement and PSF's notice of copyright, | |
75 | i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, | |
76 | 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018 Python Software Foundation; All | |
77 | Rights Reserved" are retained in Python alone or in any derivative version | |
78 | prepared by Licensee. | |
79 | ||
80 | 3. In the event Licensee prepares a derivative work that is based on | |
81 | or incorporates Python or any part thereof, and wants to make | |
82 | the derivative work available to others as provided herein, then | |
83 | Licensee hereby agrees to include in any such work a brief summary of | |
84 | the changes made to Python. | |
85 | ||
86 | 4. PSF is making Python available to Licensee on an "AS IS" | |
87 | basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR | |
88 | IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND | |
89 | DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS | |
90 | FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT | |
91 | INFRINGE ANY THIRD PARTY RIGHTS. | |
92 | ||
93 | 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON | |
94 | FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS | |
95 | A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON, | |
96 | OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. | |
97 | ||
98 | 6. This License Agreement will automatically terminate upon a material | |
99 | breach of its terms and conditions. | |
100 | ||
101 | 7. Nothing in this License Agreement shall be deemed to create any | |
102 | relationship of agency, partnership, or joint venture between PSF and | |
103 | Licensee. This License Agreement does not grant permission to use PSF | |
104 | trademarks or trade name in a trademark sense to endorse or promote | |
105 | products or services of Licensee, or any third party. | |
106 | ||
107 | 8. By copying, installing or otherwise using Python, Licensee | |
108 | agrees to be bound by the terms and conditions of this License | |
109 | Agreement. | |
110 | ||
111 | ||
112 | BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0 | |
113 | ------------------------------------------- | |
114 | ||
115 | BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1 | |
116 | ||
117 | 1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an | |
118 | office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the | |
119 | Individual or Organization ("Licensee") accessing and otherwise using | |
120 | this software in source or binary form and its associated | |
121 | documentation ("the Software"). | |
122 | ||
123 | 2. Subject to the terms and conditions of this BeOpen Python License | |
124 | Agreement, BeOpen hereby grants Licensee a non-exclusive, | |
125 | royalty-free, world-wide license to reproduce, analyze, test, perform | |
126 | and/or display publicly, prepare derivative works, distribute, and | |
127 | otherwise use the Software alone or in any derivative version, | |
128 | provided, however, that the BeOpen Python License is retained in the | |
129 | Software, alone or in any derivative version prepared by Licensee. | |
130 | ||
131 | 3. BeOpen is making the Software available to Licensee on an "AS IS" | |
132 | basis. BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR | |
133 | IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND | |
134 | DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS | |
135 | FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT | |
136 | INFRINGE ANY THIRD PARTY RIGHTS. | |
137 | ||
138 | 4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE | |
139 | SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS | |
140 | AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY | |
141 | DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. | |
142 | ||
143 | 5. This License Agreement will automatically terminate upon a material | |
144 | breach of its terms and conditions. | |
145 | ||
146 | 6. This License Agreement shall be governed by and interpreted in all | |
147 | respects by the law of the State of California, excluding conflict of | |
148 | law provisions. Nothing in this License Agreement shall be deemed to | |
149 | create any relationship of agency, partnership, or joint venture | |
150 | between BeOpen and Licensee. This License Agreement does not grant | |
151 | permission to use BeOpen trademarks or trade names in a trademark | |
152 | sense to endorse or promote products or services of Licensee, or any | |
153 | third party. As an exception, the "BeOpen Python" logos available at | |
154 | http://www.pythonlabs.com/logos.html may be used according to the | |
155 | permissions granted on that web page. | |
156 | ||
157 | 7. By copying, installing or otherwise using the software, Licensee | |
158 | agrees to be bound by the terms and conditions of this License | |
159 | Agreement. | |
160 | ||
161 | ||
162 | CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1 | |
163 | --------------------------------------- | |
164 | ||
165 | 1. This LICENSE AGREEMENT is between the Corporation for National | |
166 | Research Initiatives, having an office at 1895 Preston White Drive, | |
167 | Reston, VA 20191 ("CNRI"), and the Individual or Organization | |
168 | ("Licensee") accessing and otherwise using Python 1.6.1 software in | |
169 | source or binary form and its associated documentation. | |
170 | ||
171 | 2. Subject to the terms and conditions of this License Agreement, CNRI | |
172 | hereby grants Licensee a nonexclusive, royalty-free, world-wide | |
173 | license to reproduce, analyze, test, perform and/or display publicly, | |
174 | prepare derivative works, distribute, and otherwise use Python 1.6.1 | |
175 | alone or in any derivative version, provided, however, that CNRI's | |
176 | License Agreement and CNRI's notice of copyright, i.e., "Copyright (c) | |
177 | 1995-2001 Corporation for National Research Initiatives; All Rights | |
178 | Reserved" are retained in Python 1.6.1 alone or in any derivative | |
179 | version prepared by Licensee. Alternately, in lieu of CNRI's License | |
180 | Agreement, Licensee may substitute the following text (omitting the | |
181 | quotes): "Python 1.6.1 is made available subject to the terms and | |
182 | conditions in CNRI's License Agreement. This Agreement together with | |
183 | Python 1.6.1 may be located on the Internet using the following | |
184 | unique, persistent identifier (known as a handle): 1895.22/1013. This | |
185 | Agreement may also be obtained from a proxy server on the Internet | |
186 | using the following URL: http://hdl.handle.net/1895.22/1013". | |
187 | ||
188 | 3. In the event Licensee prepares a derivative work that is based on | |
189 | or incorporates Python 1.6.1 or any part thereof, and wants to make | |
190 | the derivative work available to others as provided herein, then | |
191 | Licensee hereby agrees to include in any such work a brief summary of | |
192 | the changes made to Python 1.6.1. | |
193 | ||
194 | 4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS" | |
195 | basis. CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR | |
196 | IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND | |
197 | DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS | |
198 | FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT | |
199 | INFRINGE ANY THIRD PARTY RIGHTS. | |
200 | ||
201 | 5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON | |
202 | 1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS | |
203 | A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1, | |
204 | OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. | |
205 | ||
206 | 6. This License Agreement will automatically terminate upon a material | |
207 | breach of its terms and conditions. | |
208 | ||
209 | 7. This License Agreement shall be governed by the federal | |
210 | intellectual property law of the United States, including without | |
211 | limitation the federal copyright law, and, to the extent such | |
212 | U.S. federal law does not apply, by the law of the Commonwealth of | |
213 | Virginia, excluding Virginia's conflict of law provisions. | |
214 | Notwithstanding the foregoing, with regard to derivative works based | |
215 | on Python 1.6.1 that incorporate non-separable material that was | |
216 | previously distributed under the GNU General Public License (GPL), the | |
217 | law of the Commonwealth of Virginia shall govern this License | |
218 | Agreement only as to issues arising under or with respect to | |
219 | Paragraphs 4, 5, and 7 of this License Agreement. Nothing in this | |
220 | License Agreement shall be deemed to create any relationship of | |
221 | agency, partnership, or joint venture between CNRI and Licensee. This | |
222 | License Agreement does not grant permission to use CNRI trademarks or | |
223 | trade name in a trademark sense to endorse or promote products or | |
224 | services of Licensee, or any third party. | |
225 | ||
226 | 8. By clicking on the "ACCEPT" button where indicated, or by copying, | |
227 | installing or otherwise using Python 1.6.1, Licensee agrees to be | |
228 | bound by the terms and conditions of this License Agreement. | |
229 | ||
230 | ACCEPT | |
231 | ||
232 | ||
233 | CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2 | |
234 | -------------------------------------------------- | |
235 | ||
236 | Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam, | |
237 | The Netherlands. All rights reserved. | |
238 | ||
239 | Permission to use, copy, modify, and distribute this software and its | |
240 | documentation for any purpose and without fee is hereby granted, | |
241 | provided that the above copyright notice appear in all copies and that | |
242 | both that copyright notice and this permission notice appear in | |
243 | supporting documentation, and that the name of Stichting Mathematisch | |
244 | Centrum or CWI not be used in advertising or publicity pertaining to | |
245 | distribution of the software without specific, written prior | |
246 | permission. | |
247 | ||
248 | STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO | |
249 | THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
250 | FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE | |
251 | FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
252 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
253 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT | |
254 | OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |