Doc/texinputs/license.tex

   1 \section{History of the software}
   2
   3 Python was created in the early 1990s by Guido van Rossum at Stichting
   4 Mathematisch Centrum (CWI, see \url{http://www.cwi.nl/}) in the Netherlands
   5 as a successor of a language called ABC.  Guido remains Python's
   6 principal author, although it includes many contributions from others.
   7
   8 In 1995, Guido continued his work on Python at the Corporation for
   9 National Research Initiatives (CNRI, see \url{http://www.cnri.reston.va.us/})
  10 in Reston, Virginia where he released several versions of the
  11 software.
  12
  13 In May 2000, Guido and the Python core development team moved to
  14 BeOpen.com to form the BeOpen PythonLabs team.  In October of the same
  15 year, the PythonLabs team moved to Digital Creations (now Zope
  16 Corporation; see \url{http://www.zope.com/}).  In 2001, the Python
  17 Software Foundation (PSF, see \url{http://www.python.org/psf/}) was
  18 formed, a non-profit organization created specifically to own
  19 Python-related Intellectual Property.  Zope Corporation is a
  20 sponsoring member of the PSF.
  21
  22 All Python releases are Open Source (see
  23 \url{http://www.opensource.org/} for the Open Source Definition).
  24 Historically, most, but not all, Python releases have also been
  25 GPL-compatible; the table below summarizes the various releases.
  26
  27 \begin{tablev}{c|c|c|c|c}{textrm}{Release}{Derived from}{Year}{Owner}{GPL compatible?}
  28   \linev{0.9.0 thru 1.2}{n/a}{1991-1995}{CWI}{yes}
  29   \linev{1.3 thru 1.5.2}{1.2}{1995-1999}{CNRI}{yes}
  30   \linev{1.6}{1.5.2}{2000}{CNRI}{no}
  31   \linev{2.0}{1.6}{2000}{BeOpen.com}{no}
  32   \linev{1.6.1}{1.6}{2001}{CNRI}{no}
  33   \linev{2.1}{2.0+1.6.1}{2001}{PSF}{no}
  34   \linev{2.0.1}{2.0+1.6.1}{2001}{PSF}{yes}
  35   \linev{2.1.1}{2.1+2.0.1}{2001}{PSF}{yes}
  36   \linev{2.2}{2.1.1}{2001}{PSF}{yes}
  37   \linev{2.1.2}{2.1.1}{2002}{PSF}{yes}
  38   \linev{2.1.3}{2.1.2}{2002}{PSF}{yes}
  39   \linev{2.2.1}{2.2}{2002}{PSF}{yes}
  40 \end{tablev}
  41
  42 \note{GPL-compatible doesn't mean that we're distributing
  43 Python under the GPL.  All Python licenses, unlike the GPL, let you
  44 distribute a modified version without making your changes open source.
  45 The GPL-compatible licenses make it possible to combine Python with
  46 other software that is released under the GPL; the others don't.}
  47
  48 Thanks to the many outside volunteers who have worked under Guido's
  49 direction to make these releases possible.
  50
  51
  52 \section{Terms and conditions for accessing or otherwise using Python}
  53
  54 \centerline{\strong{PSF LICENSE AGREEMENT FOR PYTHON 2.3}}
  55
  56 \begin{enumerate}
  57 \item
  58 This LICENSE AGREEMENT is between the Python Software Foundation
  59 (``PSF''), and the Individual or Organization (``Licensee'') accessing
  60 and otherwise using Python \version{} software in source or binary
  61 form and its associated documentation.
  62
  63 \item
  64 Subject to the terms and conditions of this License Agreement, PSF
  65 hereby grants Licensee a nonexclusive, royalty-free, world-wide
  66 license to reproduce, analyze, test, perform and/or display publicly,
  67 prepare derivative works, distribute, and otherwise use Python
  68 \version{} alone or in any derivative version, provided, however, that
  69 PSF's License Agreement and PSF's notice of copyright, i.e.,
  70 ``Copyright \copyright{} 2001, 2002 Python Software Foundation; All
  71 Rights Reserved'' are retained in Python \version{} alone or in any
  72 derivative version prepared by Licensee.
  73
  74 \item
  75 In the event Licensee prepares a derivative work that is based on
  76 or incorporates Python \version{} or any part thereof, and wants to
  77 make the derivative work available to others as provided herein, then
  78 Licensee hereby agrees to include in any such work a brief summary of
  79 the changes made to Python \version.
  80
  81 \item
  82 PSF is making Python \version{} available to Licensee on an ``AS IS''
  83 basis.  PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
  84 IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND
  85 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
  86 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON \version{} WILL
  87 NOT INFRINGE ANY THIRD PARTY RIGHTS.
  88
  89 \item
  90 PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
  91 \version{} FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR
  92 LOSS AS A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON
  93 \version, OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE
  94 POSSIBILITY THEREOF.
  95
  96 \item
  97 This License Agreement will automatically terminate upon a material
  98 breach of its terms and conditions.
  99
 100 \item
 101 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 \item
 108 By copying, installing or otherwise using Python \version, Licensee
 109 agrees to be bound by the terms and conditions of this License
 110 Agreement.
 111 \end{enumerate}
 112
 113
 114 \centerline{\strong{BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0}}
 115
 116 \centerline{\strong{BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1}}
 117
 118 \begin{enumerate}
 119 \item
 120 This LICENSE AGREEMENT is between BeOpen.com (``BeOpen''), having an
 121 office at 160 Saratoga Avenue, Santa Clara, CA 95051, and the
 122 Individual or Organization (``Licensee'') accessing and otherwise
 123 using this software in source or binary form and its associated
 124 documentation (``the Software'').
 125
 126 \item
 127 Subject to the terms and conditions of this BeOpen Python License
 128 Agreement, BeOpen hereby grants Licensee a non-exclusive,
 129 royalty-free, world-wide license to reproduce, analyze, test, perform
 130 and/or display publicly, prepare derivative works, distribute, and
 131 otherwise use the Software alone or in any derivative version,
 132 provided, however, that the BeOpen Python License is retained in the
 133 Software, alone or in any derivative version prepared by Licensee.
 134
 135 \item
 136 BeOpen is making the Software available to Licensee on an ``AS IS''
 137 basis.  BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
 138 IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND
 139 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
 140 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF THE SOFTWARE WILL NOT
 141 INFRINGE ANY THIRD PARTY RIGHTS.
 142
 143 \item
 144 BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE
 145 SOFTWARE FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS
 146 AS A RESULT OF USING, MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY
 147 DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
 148
 149 \item
 150 This License Agreement will automatically terminate upon a material
 151 breach of its terms and conditions.
 152
 153 \item
 154 This License Agreement shall be governed by and interpreted in all
 155 respects by the law of the State of California, excluding conflict of
 156 law provisions.  Nothing in this License Agreement shall be deemed to
 157 create any relationship of agency, partnership, or joint venture
 158 between BeOpen and Licensee.  This License Agreement does not grant
 159 permission to use BeOpen trademarks or trade names in a trademark
 160 sense to endorse or promote products or services of Licensee, or any
 161 third party.  As an exception, the ``BeOpen Python'' logos available
 162 at http://www.pythonlabs.com/logos.html may be used according to the
 163 permissions granted on that web page.
 164
 165 \item
 166 By copying, installing or otherwise using the software, Licensee
 167 agrees to be bound by the terms and conditions of this License
 168 Agreement.
 169 \end{enumerate}
 170
 171
 172 \centerline{\strong{CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1}}
 173
 174 \begin{enumerate}
 175 \item
 176 This LICENSE AGREEMENT is between the Corporation for National
 177 Research Initiatives, having an office at 1895 Preston White Drive,
 178 Reston, VA 20191 (``CNRI''), and the Individual or Organization
 179 (``Licensee'') accessing and otherwise using Python 1.6.1 software in
 180 source or binary form and its associated documentation.
 181
 182 \item
 183 Subject to the terms and conditions of this License Agreement, CNRI
 184 hereby grants Licensee a nonexclusive, royalty-free, world-wide
 185 license to reproduce, analyze, test, perform and/or display publicly,
 186 prepare derivative works, distribute, and otherwise use Python 1.6.1
 187 alone or in any derivative version, provided, however, that CNRI's
 188 License Agreement and CNRI's notice of copyright, i.e., ``Copyright
 189 \copyright{} 1995-2001 Corporation for National Research Initiatives;
 190 All Rights Reserved'' are retained in Python 1.6.1 alone or in any
 191 derivative version prepared by Licensee.  Alternately, in lieu of
 192 CNRI's License Agreement, Licensee may substitute the following text
 193 (omitting the quotes): ``Python 1.6.1 is made available subject to the
 194 terms and conditions in CNRI's License Agreement.  This Agreement
 195 together with Python 1.6.1 may be located on the Internet using the
 196 following unique, persistent identifier (known as a handle):
 197 1895.22/1013.  This Agreement may also be obtained from a proxy server
 198 on the Internet using the following URL:
 199 \url{http://hdl.handle.net/1895.22/1013}.''
 200
 201 \item
 202 In the event Licensee prepares a derivative work that is based on
 203 or incorporates Python 1.6.1 or any part thereof, and wants to make
 204 the derivative work available to others as provided herein, then
 205 Licensee hereby agrees to include in any such work a brief summary of
 206 the changes made to Python 1.6.1.
 207
 208 \item
 209 CNRI is making Python 1.6.1 available to Licensee on an ``AS IS''
 210 basis.  CNRI MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR
 211 IMPLIED.  BY WAY OF EXAMPLE, BUT NOT LIMITATION, CNRI MAKES NO AND
 212 DISCLAIMS ANY REPRESENTATION OR WARRANTY OF MERCHANTABILITY OR FITNESS
 213 FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF PYTHON 1.6.1 WILL NOT
 214 INFRINGE ANY THIRD PARTY RIGHTS.
 215
 216 \item
 217 CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
 218 1.6.1 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
 219 A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1,
 220 OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
 221
 222 \item
 223 This License Agreement will automatically terminate upon a material
 224 breach of its terms and conditions.
 225
 226 \item
 227 This License Agreement shall be governed by the federal
 228 intellectual property law of the United States, including without
 229 limitation the federal copyright law, and, to the extent such
 230 U.S. federal law does not apply, by the law of the Commonwealth of
 231 Virginia, excluding Virginia's conflict of law provisions.
 232 Notwithstanding the foregoing, with regard to derivative works based
 233 on Python 1.6.1 that incorporate non-separable material that was
 234 previously distributed under the GNU General Public License (GPL), the
 235 law of the Commonwealth of Virginia shall govern this License
 236 Agreement only as to issues arising under or with respect to
 237 Paragraphs 4, 5, and 7 of this License Agreement.  Nothing in this
 238 License Agreement shall be deemed to create any relationship of
 239 agency, partnership, or joint venture between CNRI and Licensee.  This
 240 License Agreement does not grant permission to use CNRI trademarks or
 241 trade name in a trademark sense to endorse or promote products or
 242 services of Licensee, or any third party.
 243
 244 \item
 245 By clicking on the ``ACCEPT'' button where indicated, or by copying,
 246 installing or otherwise using Python 1.6.1, Licensee agrees to be
 247 bound by the terms and conditions of this License Agreement.
 248 \end{enumerate}
 249
 250 \centerline{ACCEPT}
 251
 252
 253
 254 \centerline{\strong{CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2}}
 255
 256 Copyright \copyright{} 1991 - 1995, Stichting Mathematisch Centrum
 257 Amsterdam, The Netherlands.  All rights reserved.
 258
 259 Permission to use, copy, modify, and distribute this software and its
 260 documentation for any purpose and without fee is hereby granted,
 261 provided that the above copyright notice appear in all copies and that
 262 both that copyright notice and this permission notice appear in
 263 supporting documentation, and that the name of Stichting Mathematisch
 264 Centrum or CWI not be used in advertising or publicity pertaining to
 265 distribution of the software without specific, written prior
 266 permission.
 267
 268 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO
 269 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
 270 FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE
 271 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 272 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 273 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
 274 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.