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 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. 8 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. 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 (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. 22 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. 27 28 Release Derived Year Owner GPL- 29 from compatible? (1) 30 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 2.7 2.6 2010 PSF yes 67 68 Footnotes: 69 70 (1) GPL-compatible doesn't mean that we're distributing Python under 71 the GPL. All Python licenses, unlike the GPL, let you distribute 72 a modified version without making your changes open source. The 73 GPL-compatible licenses make it possible to combine Python with 74 other software that is released under the GPL; the others don't. 75 76 (2) According to Richard Stallman, 1.6.1 is not GPL-compatible, 77 because its license has a choice of law clause. According to 78 CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1 79 is "not incompatible" with the GPL. 80 81 Thanks to the many outside volunteers who have worked under Guido's 82 direction to make these releases possible. 83 84 85 B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON 86 =============================================================== 87 88 PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2 89 -------------------------------------------- 90 91 1. This LICENSE AGREEMENT is between the Python Software Foundation 92 ("PSF"), and the Individual or Organization ("Licensee") accessing and 93 otherwise using this software ("Python") in source or binary form and 94 its associated documentation. 95 96 2. Subject to the terms and conditions of this License Agreement, PSF hereby 97 grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce, 98 analyze, test, perform and/or display publicly, prepare derivative works, 99 distribute, and otherwise use Python alone or in any derivative version, 100 provided, however, that PSF's License Agreement and PSF's notice of copyright, 101 i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 102 2011, 2012, 2013 Python Software Foundation; All Rights Reserved" are retained 103 in Python alone or in any derivative version prepared by Licensee. 104 105 3. In the event Licensee prepares a derivative work that is based on 106 or incorporates Python or any part thereof, and wants to make 107 the derivative work available to others as provided herein, then 108 Licensee hereby agrees to include in any such work a brief summary of 109 the changes made to Python. 110 111 4. PSF is making Python available to Licensee on an "AS IS" 112 basis. PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR 113 IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND 114 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS 115 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON WILL NOT 116 INFRINGE ANY THIRD PARTY RIGHTS. 117 118 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON 119 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS 120 A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON, 121 OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. 122 123 6. This License Agreement will automatically terminate upon a material 124 breach of its terms and conditions. 125 126 7. Nothing in this License Agreement shall be deemed to create any 127 relationship of agency, partnership, or joint venture between PSF and 128 Licensee. This License Agreement does not grant permission to use PSF 129 trademarks or trade name in a trademark sense to endorse or promote 130 products or services of Licensee, or any third party. 131 132 8. By copying, installing or otherwise using Python, Licensee 133 agrees to be bound by the terms and conditions of this License 134 Agreement. 135 136 137 BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0 138 ------------------------------------------- 139 140 BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1 141 142 1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an 143 office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the 144 Individual or Organization ("Licensee") accessing and otherwise using 145 this software in source or binary form and its associated 146 documentation ("the Software"). 147 148 2. Subject to the terms and conditions of this BeOpen Python License 149 Agreement, BeOpen hereby grants Licensee a non-exclusive, 150 royalty-free, world-wide license to reproduce, analyze, test, perform 151 and/or display publicly, prepare derivative works, distribute, and 152 otherwise use the Software alone or in any derivative version, 153 provided, however, that the BeOpen Python License is retained in the 154 Software, alone or in any derivative version prepared by Licensee. 155 156 3. BeOpen is making the Software available to Licensee on an "AS IS" 157 basis. BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR 158 IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND 159 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS 160 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT 161 INFRINGE ANY THIRD PARTY RIGHTS. 162 163 4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE 164 SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS 165 AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY 166 DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. 167 168 5. This License Agreement will automatically terminate upon a material 169 breach of its terms and conditions. 170 171 6. This License Agreement shall be governed by and interpreted in all 172 respects by the law of the State of California, excluding conflict of 173 law provisions. Nothing in this License Agreement shall be deemed to 174 create any relationship of agency, partnership, or joint venture 175 between BeOpen and Licensee. This License Agreement does not grant 176 permission to use BeOpen trademarks or trade names in a trademark 177 sense to endorse or promote products or services of Licensee, or any 178 third party. As an exception, the "BeOpen Python" logos available at 179 http://www.pythonlabs.com/logos.html may be used according to the 180 permissions granted on that web page. 181 182 7. By copying, installing or otherwise using the software, Licensee 183 agrees to be bound by the terms and conditions of this License 184 Agreement. 185 186 187 CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1 188 --------------------------------------- 189 190 1. This LICENSE AGREEMENT is between the Corporation for National 191 Research Initiatives, having an office at 1895 Preston White Drive, 192 Reston, VA 20191 ("CNRI"), and the Individual or Organization 193 ("Licensee") accessing and otherwise using Python 1.6.1 software in 194 source or binary form and its associated documentation. 195 196 2. Subject to the terms and conditions of this License Agreement, CNRI 197 hereby grants Licensee a nonexclusive, royalty-free, world-wide 198 license to reproduce, analyze, test, perform and/or display publicly, 199 prepare derivative works, distribute, and otherwise use Python 1.6.1 200 alone or in any derivative version, provided, however, that CNRI's 201 License Agreement and CNRI's notice of copyright, i.e., "Copyright (c) 202 1995-2001 Corporation for National Research Initiatives; All Rights 203 Reserved" are retained in Python 1.6.1 alone or in any derivative 204 version prepared by Licensee. Alternately, in lieu of CNRI's License 205 Agreement, Licensee may substitute the following text (omitting the 206 quotes): "Python 1.6.1 is made available subject to the terms and 207 conditions in CNRI's License Agreement. This Agreement together with 208 Python 1.6.1 may be located on the Internet using the following 209 unique, persistent identifier (known as a handle): 1895.22/1013. This 210 Agreement may also be obtained from a proxy server on the Internet 211 using the following URL: http://hdl.handle.net/1895.22/1013". 212 213 3. In the event Licensee prepares a derivative work that is based on 214 or incorporates Python 1.6.1 or any part thereof, and wants to make 215 the derivative work available to others as provided herein, then 216 Licensee hereby agrees to include in any such work a brief summary of 217 the changes made to Python 1.6.1. 218 219 4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS" 220 basis. CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR 221 IMPLIED. BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND 222 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS 223 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT 224 INFRINGE ANY THIRD PARTY RIGHTS. 225 226 5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON 227 1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS 228 A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1, 229 OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. 230 231 6. This License Agreement will automatically terminate upon a material 232 breach of its terms and conditions. 233 234 7. This License Agreement shall be governed by the federal 235 intellectual property law of the United States, including without 236 limitation the federal copyright law, and, to the extent such 237 U.S. federal law does not apply, by the law of the Commonwealth of 238 Virginia, excluding Virginia's conflict of law provisions. 239 Notwithstanding the foregoing, with regard to derivative works based 240 on Python 1.6.1 that incorporate non-separable material that was 241 previously distributed under the GNU General Public License (GPL), the 242 law of the Commonwealth of Virginia shall govern this License 243 Agreement only as to issues arising under or with respect to 244 Paragraphs 4, 5, and 7 of this License Agreement. Nothing in this 245 License Agreement shall be deemed to create any relationship of 246 agency, partnership, or joint venture between CNRI and Licensee. This 247 License Agreement does not grant permission to use CNRI trademarks or 248 trade name in a trademark sense to endorse or promote products or 249 services of Licensee, or any third party. 250 251 8. By clicking on the "ACCEPT" button where indicated, or by copying, 252 installing or otherwise using Python 1.6.1, Licensee agrees to be 253 bound by the terms and conditions of this License Agreement. 254 255 ACCEPT 256 257 258 CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2 259 -------------------------------------------------- 260 261 Copyright (c) 1991 - 1995, Stichting Mathematisch Centrum Amsterdam, 262 The Netherlands. All rights reserved. 263 264 Permission to use, copy, modify, and distribute this software and its 265 documentation for any purpose and without fee is hereby granted, 266 provided that the above copyright notice appear in all copies and that 267 both that copyright notice and this permission notice appear in 268 supporting documentation, and that the name of Stichting Mathematisch 269 Centrum or CWI not be used in advertising or publicity pertaining to 270 distribution of the software without specific, written prior 271 permission. 272 273 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO 274 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND 275 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE 276 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 277 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 278 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 279 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 280
