]>
Commit | Line | Data |
---|---|---|
3225c1fa GR |
1 | A. HISTORY OF THE SOFTWARE |
2 | ========================== | |
ea70b490 GR |
3 | |
4 | Python was created in the early 1990s by Guido van Rossum at Stichting | |
ea4be278 | 5 | Mathematisch Centrum (CWI, see https://www.cwi.nl) in the Netherlands |
7b4dd76b GR |
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 | |
ea4be278 | 10 | National Research Initiatives (CNRI, see https://www.cnri.reston.va.us) |
7b4dd76b GR |
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 | |
8474d871 M |
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. | |
7b4dd76b | 21 | |
ea4be278 | 22 | All Python releases are Open Source (see https://opensource.org for |
7b4dd76b GR |
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- | |
7cb13a97 | 28 | from compatible? (1) |
7b4dd76b GR |
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 | |
7df772b2 | 34 | 1.6.1 1.6 2001 CNRI yes (2) |
7b4dd76b GR |
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 | |
b0f3ceaf TP |
38 | 2.1.2 2.1.1 2002 PSF yes |
39 | 2.1.3 2.1.2 2002 PSF yes | |
587b3057 | 40 | 2.2 and above 2.1.1 2001-now PSF yes |
7b4dd76b GR |
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. | |
ea70b490 | 49 | |
7df772b2 GR |
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 | ||
3225c1fa GR |
55 | Thanks to the many outside volunteers who have worked under Guido's |
56 | direction to make these releases possible. | |
ea70b490 | 57 | |
3225c1fa | 58 | |
aa815df1 GR |
59 | B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON |
60 | =============================================================== | |
3225c1fa | 61 | |
e223d06a T |
62 | Python software and documentation are licensed under the |
63 | Python Software Foundation License Version 2. | |
64 | ||
65 | Starting with Python 3.8.6, examples, recipes, and other code in | |
66 | the documentation are dual licensed under the PSF License Version 2 | |
67 | and the Zero-Clause BSD license. | |
68 | ||
69 | Some software incorporated into Python is under different licenses. | |
70 | The licenses are listed with code falling under that license. | |
71 | ||
72 | ||
acaffe65 TP |
73 | PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2 |
74 | -------------------------------------------- | |
9ea60c51 GR |
75 | |
76 | 1. This LICENSE AGREEMENT is between the Python Software Foundation | |
77 | ("PSF"), and the Individual or Organization ("Licensee") accessing and | |
cb91900f TP |
78 | otherwise using this software ("Python") in source or binary form and |
79 | its associated documentation. | |
9ea60c51 | 80 | |
b1441c7e GB |
81 | 2. Subject to the terms and conditions of this License Agreement, PSF hereby |
82 | grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce, | |
83 | analyze, test, perform and/or display publicly, prepare derivative works, | |
84 | distribute, and otherwise use Python alone or in any derivative version, | |
85 | provided, however, that PSF's License Agreement and PSF's notice of copyright, | |
c86571e4 | 86 | i.e., "Copyright (c) 2001-2024 Python Software Foundation; All Rights Reserved" |
87 | are retained in Python alone or in any derivative version prepared by Licensee. | |
9ea60c51 GR |
88 | |
89 | 3. In the event Licensee prepares a derivative work that is based on | |
acaffe65 | 90 | or incorporates Python or any part thereof, and wants to make |
9ea60c51 GR |
91 | the derivative work available to others as provided herein, then |
92 | Licensee hereby agrees to include in any such work a brief summary of | |
acaffe65 | 93 | the changes made to Python. |
9ea60c51 | 94 | |
acaffe65 | 95 | 4. PSF is making Python available to Licensee on an "AS IS" |
9ea60c51 GR |
96 | basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR |
97 | IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND | |
98 | DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS | |
acaffe65 | 99 | FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT |
9ea60c51 GR |
100 | INFRINGE ANY THIRD PARTY RIGHTS. |
101 | ||
102 | 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON | |
acaffe65 TP |
103 | FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS |
104 | A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON, | |
9ea60c51 GR |
105 | OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. |
106 | ||
107 | 6. This License Agreement will automatically terminate upon a material | |
108 | breach of its terms and conditions. | |
109 | ||
648b4de3 GR |
110 | 7. Nothing in this License Agreement shall be deemed to create any |
111 | relationship of agency, partnership, or joint venture between PSF and | |
112 | Licensee. This License Agreement does not grant permission to use PSF | |
113 | trademarks or trade name in a trademark sense to endorse or promote | |
114 | products or services of Licensee, or any third party. | |
9ea60c51 | 115 | |
acaffe65 | 116 | 8. By copying, installing or otherwise using Python, Licensee |
859d9b50 GR |
117 | agrees to be bound by the terms and conditions of this License |
118 | Agreement. | |
119 | ||
575d7f3f | 120 | |
7b4dd76b GR |
121 | BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0 |
122 | ------------------------------------------- | |
028d0693 | 123 | |
2e0d3311 | 124 | BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1 |
ea70b490 | 125 | |
028d0693 GR |
126 | 1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an |
127 | office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the | |
ea70b490 GR |
128 | Individual or Organization ("Licensee") accessing and otherwise using |
129 | this software in source or binary form and its associated | |
130 | documentation ("the Software"). | |
131 | ||
028d0693 GR |
132 | 2. Subject to the terms and conditions of this BeOpen Python License |
133 | Agreement, BeOpen hereby grants Licensee a non-exclusive, | |
134 | royalty-free, world-wide license to reproduce, analyze, test, perform | |
135 | and/or display publicly, prepare derivative works, distribute, and | |
136 | otherwise use the Software alone or in any derivative version, | |
137 | provided, however, that the BeOpen Python License is retained in the | |
138 | Software, alone or in any derivative version prepared by Licensee. | |
139 | ||
82271161 | 140 | 3. BeOpen is making the Software available to Licensee on an "AS IS" |
ea70b490 GR |
141 | basis. BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR |
142 | IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND | |
143 | DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS | |
144 | FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT | |
145 | INFRINGE ANY THIRD PARTY RIGHTS. | |
146 | ||
82271161 | 147 | 4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE |
ea70b490 GR |
148 | SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS |
149 | AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY | |
150 | DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. | |
151 | ||
82271161 | 152 | 5. This License Agreement will automatically terminate upon a material |
ea70b490 GR |
153 | breach of its terms and conditions. |
154 | ||
82271161 | 155 | 6. This License Agreement shall be governed by and interpreted in all |
ea70b490 GR |
156 | respects by the law of the State of California, excluding conflict of |
157 | law provisions. Nothing in this License Agreement shall be deemed to | |
158 | create any relationship of agency, partnership, or joint venture | |
159 | between BeOpen and Licensee. This License Agreement does not grant | |
ac1c818f GR |
160 | permission to use BeOpen trademarks or trade names in a trademark |
161 | sense to endorse or promote products or services of Licensee, or any | |
162 | third party. As an exception, the "BeOpen Python" logos available at | |
028d0693 GR |
163 | http://www.pythonlabs.com/logos.html may be used according to the |
164 | permissions granted on that web page. | |
ea70b490 | 165 | |
82271161 | 166 | 7. By copying, installing or otherwise using the software, Licensee |
ea70b490 GR |
167 | agrees to be bound by the terms and conditions of this License |
168 | Agreement. | |
169 | ||
170 | ||
7b4dd76b GR |
171 | CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1 |
172 | --------------------------------------- | |
ea761c0d GR |
173 | |
174 | 1. This LICENSE AGREEMENT is between the Corporation for National | |
175 | Research Initiatives, having an office at 1895 Preston White Drive, | |
176 | Reston, VA 20191 ("CNRI"), and the Individual or Organization | |
3225c1fa GR |
177 | ("Licensee") accessing and otherwise using Python 1.6.1 software in |
178 | source or binary form and its associated documentation. | |
ea761c0d GR |
179 | |
180 | 2. Subject to the terms and conditions of this License Agreement, CNRI | |
181 | hereby grants Licensee a nonexclusive, royalty-free, world-wide | |
182 | license to reproduce, analyze, test, perform and/or display publicly, | |
3225c1fa | 183 | prepare derivative works, distribute, and otherwise use Python 1.6.1 |
ea761c0d GR |
184 | alone or in any derivative version, provided, however, that CNRI's |
185 | License Agreement and CNRI's notice of copyright, i.e., "Copyright (c) | |
3225c1fa GR |
186 | 1995-2001 Corporation for National Research Initiatives; All Rights |
187 | Reserved" are retained in Python 1.6.1 alone or in any derivative | |
188 | version prepared by Licensee. Alternately, in lieu of CNRI's License | |
189 | Agreement, Licensee may substitute the following text (omitting the | |
190 | quotes): "Python 1.6.1 is made available subject to the terms and | |
191 | conditions in CNRI's License Agreement. This Agreement together with | |
11749e2d | 192 | Python 1.6.1 may be located on the internet using the following |
3225c1fa | 193 | unique, persistent identifier (known as a handle): 1895.22/1013. This |
11749e2d | 194 | Agreement may also be obtained from a proxy server on the internet |
3225c1fa | 195 | using the following URL: http://hdl.handle.net/1895.22/1013". |
ea761c0d GR |
196 | |
197 | 3. In the event Licensee prepares a derivative work that is based on | |
3225c1fa GR |
198 | or incorporates Python 1.6.1 or any part thereof, and wants to make |
199 | the derivative work available to others as provided herein, then | |
200 | Licensee hereby agrees to include in any such work a brief summary of | |
201 | the changes made to Python 1.6.1. | |
202 | ||
203 | 4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS" | |
204 | basis. CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR | |
205 | IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND | |
ea761c0d | 206 | DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS |
3225c1fa | 207 | FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT |
ea761c0d GR |
208 | INFRINGE ANY THIRD PARTY RIGHTS. |
209 | ||
210 | 5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON | |
3225c1fa GR |
211 | 1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS |
212 | A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1, | |
213 | OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. | |
ea761c0d GR |
214 | |
215 | 6. This License Agreement will automatically terminate upon a material | |
216 | breach of its terms and conditions. | |
217 | ||
3225c1fa GR |
218 | 7. This License Agreement shall be governed by the federal |
219 | intellectual property law of the United States, including without | |
220 | limitation the federal copyright law, and, to the extent such | |
221 | U.S. federal law does not apply, by the law of the Commonwealth of | |
222 | Virginia, excluding Virginia's conflict of law provisions. | |
223 | Notwithstanding the foregoing, with regard to derivative works based | |
224 | on Python 1.6.1 that incorporate non-separable material that was | |
225 | previously distributed under the GNU General Public License (GPL), the | |
226 | law of the Commonwealth of Virginia shall govern this License | |
227 | Agreement only as to issues arising under or with respect to | |
228 | Paragraphs 4, 5, and 7 of this License Agreement. Nothing in this | |
229 | License Agreement shall be deemed to create any relationship of | |
230 | agency, partnership, or joint venture between CNRI and Licensee. This | |
231 | License Agreement does not grant permission to use CNRI trademarks or | |
232 | trade name in a trademark sense to endorse or promote products or | |
233 | services of Licensee, or any third party. | |
ea761c0d GR |
234 | |
235 | 8. By clicking on the "ACCEPT" button where indicated, or by copying, | |
3225c1fa GR |
236 | installing or otherwise using Python 1.6.1, Licensee agrees to be |
237 | bound by the terms and conditions of this License Agreement. | |
ea761c0d | 238 | |
3225c1fa | 239 | ACCEPT |
ea70b490 GR |
240 | |
241 | ||
7b4dd76b GR |
242 | CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2 |
243 | -------------------------------------------------- | |
ea70b490 GR |
244 | |
245 | Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam, | |
246 | The Netherlands. All rights reserved. | |
247 | ||
248 | Permission to use, copy, modify, and distribute this software and its | |
249 | documentation for any purpose and without fee is hereby granted, | |
250 | provided that the above copyright notice appear in all copies and that | |
251 | both that copyright notice and this permission notice appear in | |
252 | supporting documentation, and that the name of Stichting Mathematisch | |
253 | Centrum or CWI not be used in advertising or publicity pertaining to | |
254 | distribution of the software without specific, written prior | |
255 | permission. | |
256 | ||
257 | STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO | |
258 | THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
259 | FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE | |
260 | FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
261 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
262 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT | |
263 | OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
e223d06a T |
264 | |
265 | ZERO-CLAUSE BSD LICENSE FOR CODE IN THE PYTHON DOCUMENTATION | |
266 | ---------------------------------------------------------------------- | |
267 | ||
268 | Permission to use, copy, modify, and/or distribute this software for any | |
269 | purpose with or without fee is hereby granted. | |
270 | ||
271 | THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH | |
272 | REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY | |
273 | AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, | |
274 | INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM | |
275 | LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR | |
276 | OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR | |
277 | PERFORMANCE OF THIS SOFTWARE. |