1 .. highlightlang:: none
3 .. _history-and-license:
10 History of the software
11 =======================
13 Python was created in the early 1990s by Guido van Rossum at Stichting
14 Mathematisch Centrum (CWI, see http://www.cwi.nl/) in the Netherlands as a
15 successor of a language called ABC. Guido remains Python's principal author,
16 although it includes many contributions from others.
18 In 1995, Guido continued his work on Python at the Corporation for National
19 Research Initiatives (CNRI, see http://www.cnri.reston.va.us/) in Reston,
20 Virginia where he released several versions of the software.
22 In May 2000, Guido and the Python core development team moved to BeOpen.com to
23 form the BeOpen PythonLabs team. In October of the same year, the PythonLabs
24 team moved to Digital Creations (now Zope Corporation; see
25 http://www.zope.com/). In 2001, the Python Software Foundation (PSF, see
26 http://www.python.org/psf/) was formed, a non-profit organization created
27 specifically to own Python-related Intellectual Property. Zope Corporation is a
28 sponsoring member of the PSF.
30 All Python releases are Open Source (see http://www.opensource.org/ for the Open
31 Source Definition). Historically, most, but not all, Python releases have also
32 been GPL-compatible; the table below summarizes the various releases.
34 +----------------+--------------+-----------+------------+-----------------+
35 | Release | Derived from | Year | Owner | GPL compatible? |
36 +================+==============+===========+============+=================+
37 | 0.9.0 thru 1.2 | n/a | 1991-1995 | CWI | yes |
38 +----------------+--------------+-----------+------------+-----------------+
39 | 1.3 thru 1.5.2 | 1.2 | 1995-1999 | CNRI | yes |
40 +----------------+--------------+-----------+------------+-----------------+
41 | 1.6 | 1.5.2 | 2000 | CNRI | no |
42 +----------------+--------------+-----------+------------+-----------------+
43 | 2.0 | 1.6 | 2000 | BeOpen.com | no |
44 +----------------+--------------+-----------+------------+-----------------+
45 | 1.6.1 | 1.6 | 2001 | CNRI | no |
46 +----------------+--------------+-----------+------------+-----------------+
47 | 2.1 | 2.0+1.6.1 | 2001 | PSF | no |
48 +----------------+--------------+-----------+------------+-----------------+
49 | 2.0.1 | 2.0+1.6.1 | 2001 | PSF | yes |
50 +----------------+--------------+-----------+------------+-----------------+
51 | 2.1.1 | 2.1+2.0.1 | 2001 | PSF | yes |
52 +----------------+--------------+-----------+------------+-----------------+
53 | 2.2 | 2.1.1 | 2001 | PSF | yes |
54 +----------------+--------------+-----------+------------+-----------------+
55 | 2.1.2 | 2.1.1 | 2002 | PSF | yes |
56 +----------------+--------------+-----------+------------+-----------------+
57 | 2.1.3 | 2.1.2 | 2002 | PSF | yes |
58 +----------------+--------------+-----------+------------+-----------------+
59 | 2.2.1 | 2.2 | 2002 | PSF | yes |
60 +----------------+--------------+-----------+------------+-----------------+
61 | 2.2.2 | 2.2.1 | 2002 | PSF | yes |
62 +----------------+--------------+-----------+------------+-----------------+
63 | 2.2.3 | 2.2.2 | 2002-2003 | PSF | yes |
64 +----------------+--------------+-----------+------------+-----------------+
65 | 2.3 | 2.2.2 | 2002-2003 | PSF | yes |
66 +----------------+--------------+-----------+------------+-----------------+
67 | 2.3.1 | 2.3 | 2002-2003 | PSF | yes |
68 +----------------+--------------+-----------+------------+-----------------+
69 | 2.3.2 | 2.3.1 | 2003 | PSF | yes |
70 +----------------+--------------+-----------+------------+-----------------+
71 | 2.3.3 | 2.3.2 | 2003 | PSF | yes |
72 +----------------+--------------+-----------+------------+-----------------+
73 | 2.3.4 | 2.3.3 | 2004 | PSF | yes |
74 +----------------+--------------+-----------+------------+-----------------+
75 | 2.3.5 | 2.3.4 | 2005 | PSF | yes |
76 +----------------+--------------+-----------+------------+-----------------+
77 | 2.4 | 2.3 | 2004 | PSF | yes |
78 +----------------+--------------+-----------+------------+-----------------+
79 | 2.4.1 | 2.4 | 2005 | PSF | yes |
80 +----------------+--------------+-----------+------------+-----------------+
81 | 2.4.2 | 2.4.1 | 2005 | PSF | yes |
82 +----------------+--------------+-----------+------------+-----------------+
83 | 2.4.3 | 2.4.2 | 2006 | PSF | yes |
84 +----------------+--------------+-----------+------------+-----------------+
85 | 2.4.4 | 2.4.3 | 2006 | PSF | yes |
86 +----------------+--------------+-----------+------------+-----------------+
87 | 2.5 | 2.4 | 2006 | PSF | yes |
88 +----------------+--------------+-----------+------------+-----------------+
89 | 2.5.1 | 2.5 | 2007 | PSF | yes |
90 +----------------+--------------+-----------+------------+-----------------+
91 | 2.5.2 | 2.5.1 | 2008 | PSF | yes |
92 +----------------+--------------+-----------+------------+-----------------+
93 | 2.5.3 | 2.5.2 | 2008 | PSF | yes |
94 +----------------+--------------+-----------+------------+-----------------+
95 | 2.6 | 2.5 | 2008 | PSF | yes |
96 +----------------+--------------+-----------+------------+-----------------+
97 | 2.6.1 | 2.6 | 2008 | PSF | yes |
98 +----------------+--------------+-----------+------------+-----------------+
99 | 2.6.2 | 2.6.1 | 2009 | PSF | yes |
100 +----------------+--------------+-----------+------------+-----------------+
101 | 2.6.3 | 2.6.2 | 2009 | PSF | yes |
102 +----------------+--------------+-----------+------------+-----------------+
103 | 2.6.4 | 2.6.3 | 2009 | PSF | yes |
104 +----------------+--------------+-----------+------------+-----------------+
108 GPL-compatible doesn't mean that we're distributing Python under the GPL. All
109 Python licenses, unlike the GPL, let you distribute a modified version without
110 making your changes open source. The GPL-compatible licenses make it possible to
111 combine Python with other software that is released under the GPL; the others
114 Thanks to the many outside volunteers who have worked under Guido's direction to
115 make these releases possible.
118 Terms and conditions for accessing or otherwise using Python
119 ============================================================
122 .. centered:: PSF LICENSE AGREEMENT FOR PYTHON |release|
124 #. This LICENSE AGREEMENT is between the Python Software Foundation ("PSF"), and
125 the Individual or Organization ("Licensee") accessing and otherwise using Python
126 |release| software in source or binary form and its associated documentation.
128 #. Subject to the terms and conditions of this License Agreement, PSF hereby
129 grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
130 analyze, test, perform and/or display publicly, prepare derivative works,
131 distribute, and otherwise use Python |release| alone or in any derivative
132 version, provided, however, that PSF's License Agreement and PSF's notice of
133 copyright, i.e., "Copyright © 2001-2010 Python Software Foundation; All Rights
134 Reserved" are retained in Python |release| alone or in any derivative version
135 prepared by Licensee.
137 #. In the event Licensee prepares a derivative work that is based on or
138 incorporates Python |release| or any part thereof, and wants to make the
139 derivative work available to others as provided herein, then Licensee hereby
140 agrees to include in any such work a brief summary of the changes made to Python
143 #. PSF is making Python |release| available to Licensee on an "AS IS" basis.
144 PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF
145 EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND DISCLAIMS ANY REPRESENTATION OR
146 WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE
147 USE OF PYTHON |release| WILL NOT INFRINGE ANY THIRD PARTY RIGHTS.
149 #. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON |release|
150 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF
151 MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON |release|, OR ANY DERIVATIVE
152 THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
154 #. This License Agreement will automatically terminate upon a material breach of
155 its terms and conditions.
157 #. Nothing in this License Agreement shall be deemed to create any relationship
158 of agency, partnership, or joint venture between PSF and Licensee. This License
159 Agreement does not grant permission to use PSF trademarks or trade name in a
160 trademark sense to endorse or promote products or services of Licensee, or any
163 #. By copying, installing or otherwise using Python |release|, Licensee agrees
164 to be bound by the terms and conditions of this License Agreement.
167 .. centered:: BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
170 .. centered:: BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
172 #. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an office at
173 160 Saratoga Avenue, Santa Clara, CA 95051, and the Individual or Organization
174 ("Licensee") accessing and otherwise using this software in source or binary
175 form and its associated documentation ("the Software").
177 #. Subject to the terms and conditions of this BeOpen Python License Agreement,
178 BeOpen hereby grants Licensee a non-exclusive, royalty-free, world-wide license
179 to reproduce, analyze, test, perform and/or display publicly, prepare derivative
180 works, distribute, and otherwise use the Software alone or in any derivative
181 version, provided, however, that the BeOpen Python License is retained in the
182 Software, alone or in any derivative version prepared by Licensee.
184 #. BeOpen is making the Software available to Licensee on an "AS IS" basis.
185 BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF
186 EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND DISCLAIMS ANY REPRESENTATION OR
187 WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE
188 USE OF THE SOFTWARE WILL NOT INFRINGE ANY THIRD PARTY RIGHTS.
190 #. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE SOFTWARE FOR
191 ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF USING,
192 MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY DERIVATIVE THEREOF, EVEN IF
193 ADVISED OF THE POSSIBILITY THEREOF.
195 #. This License Agreement will automatically terminate upon a material breach of
196 its terms and conditions.
198 #. This License Agreement shall be governed by and interpreted in all respects
199 by the law of the State of California, excluding conflict of law provisions.
200 Nothing in this License Agreement shall be deemed to create any relationship of
201 agency, partnership, or joint venture between BeOpen and Licensee. This License
202 Agreement does not grant permission to use BeOpen trademarks or trade names in a
203 trademark sense to endorse or promote products or services of Licensee, or any
204 third party. As an exception, the "BeOpen Python" logos available at
205 http://www.pythonlabs.com/logos.html may be used according to the permissions
206 granted on that web page.
208 #. By copying, installing or otherwise using the software, Licensee agrees to be
209 bound by the terms and conditions of this License Agreement.
212 .. centered:: CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
214 #. This LICENSE AGREEMENT is between the Corporation for National Research
215 Initiatives, having an office at 1895 Preston White Drive, Reston, VA 20191
216 ("CNRI"), and the Individual or Organization ("Licensee") accessing and
217 otherwise using Python 1.6.1 software in source or binary form and its
218 associated documentation.
220 #. Subject to the terms and conditions of this License Agreement, CNRI hereby
221 grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
222 analyze, test, perform and/or display publicly, prepare derivative works,
223 distribute, and otherwise use Python 1.6.1 alone or in any derivative version,
224 provided, however, that CNRI's License Agreement and CNRI's notice of copyright,
225 i.e., "Copyright © 1995-2001 Corporation for National Research Initiatives; All
226 Rights Reserved" are retained in Python 1.6.1 alone or in any derivative version
227 prepared by Licensee. Alternately, in lieu of CNRI's License Agreement,
228 Licensee may substitute the following text (omitting the quotes): "Python 1.6.1
229 is made available subject to the terms and conditions in CNRI's License
230 Agreement. This Agreement together with Python 1.6.1 may be located on the
231 Internet using the following unique, persistent identifier (known as a handle):
232 1895.22/1013. This Agreement may also be obtained from a proxy server on the
233 Internet using the following URL: http://hdl.handle.net/1895.22/1013."
235 #. In the event Licensee prepares a derivative work that is based on or
236 incorporates Python 1.6.1 or any part thereof, and wants to make the derivative
237 work available to others as provided herein, then Licensee hereby agrees to
238 include in any such work a brief summary of the changes made to Python 1.6.1.
240 #. CNRI is making Python 1.6.1 available to Licensee on an "AS IS" basis. CNRI
241 MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF EXAMPLE,
242 BUT NOT LIMITATION, CNRI MAKES NO AND DISCLAIMS ANY REPRESENTATION OR WARRANTY
243 OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF
244 PYTHON 1.6.1 WILL NOT INFRINGE ANY THIRD PARTY RIGHTS.
246 #. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON 1.6.1 FOR
247 ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF
248 MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1, OR ANY DERIVATIVE
249 THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
251 #. This License Agreement will automatically terminate upon a material breach of
252 its terms and conditions.
254 #. This License Agreement shall be governed by the federal intellectual property
255 law of the United States, including without limitation the federal copyright
256 law, and, to the extent such U.S. federal law does not apply, by the law of the
257 Commonwealth of Virginia, excluding Virginia's conflict of law provisions.
258 Notwithstanding the foregoing, with regard to derivative works based on Python
259 1.6.1 that incorporate non-separable material that was previously distributed
260 under the GNU General Public License (GPL), the law of the Commonwealth of
261 Virginia shall govern this License Agreement only as to issues arising under or
262 with respect to Paragraphs 4, 5, and 7 of this License Agreement. Nothing in
263 this License Agreement shall be deemed to create any relationship of agency,
264 partnership, or joint venture between CNRI and Licensee. This License Agreement
265 does not grant permission to use CNRI trademarks or trade name in a trademark
266 sense to endorse or promote products or services of Licensee, or any third
269 #. By clicking on the "ACCEPT" button where indicated, or by copying, installing
270 or otherwise using Python 1.6.1, Licensee agrees to be bound by the terms and
271 conditions of this License Agreement.
277 .. centered:: CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
279 Copyright © 1991 - 1995, Stichting Mathematisch Centrum Amsterdam, The
280 Netherlands. All rights reserved.
282 Permission to use, copy, modify, and distribute this software and its
283 documentation for any purpose and without fee is hereby granted, provided that
284 the above copyright notice appear in all copies and that both that copyright
285 notice and this permission notice appear in supporting documentation, and that
286 the name of Stichting Mathematisch Centrum or CWI not be used in advertising or
287 publicity pertaining to distribution of the software without specific, written
290 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
291 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
292 EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE FOR ANY SPECIAL, INDIRECT
293 OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
294 DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
295 ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
299 Licenses and Acknowledgements for Incorporated Software
300 =======================================================
302 This section is an incomplete, but growing list of licenses and acknowledgements
303 for third-party software incorporated in the Python distribution.
309 The :mod:`_random` module includes code based on a download from
310 http://www.math.keio.ac.jp/ matumoto/MT2002/emt19937ar.html. The following are
311 the verbatim comments from the original code::
313 A C-program for MT19937, with initialization improved 2002/1/26.
314 Coded by Takuji Nishimura and Makoto Matsumoto.
316 Before using, initialize the state by using init_genrand(seed)
317 or init_by_array(init_key, key_length).
319 Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
322 Redistribution and use in source and binary forms, with or without
323 modification, are permitted provided that the following conditions
326 1. Redistributions of source code must retain the above copyright
327 notice, this list of conditions and the following disclaimer.
329 2. Redistributions in binary form must reproduce the above copyright
330 notice, this list of conditions and the following disclaimer in the
331 documentation and/or other materials provided with the distribution.
333 3. The names of its contributors may not be used to endorse or promote
334 products derived from this software without specific prior written
337 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
338 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
339 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
340 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
341 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
342 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
343 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
344 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
345 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
346 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
347 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
350 Any feedback is very welcome.
351 http://www.math.keio.ac.jp/matumoto/emt.html
352 email: matumoto@math.keio.ac.jp
358 The :mod:`socket` module uses the functions, :func:`getaddrinfo`, and
359 :func:`getnameinfo`, which are coded in separate source files from the WIDE
360 Project, http://www.wide.ad.jp/. ::
362 Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
365 Redistribution and use in source and binary forms, with or without
366 modification, are permitted provided that the following conditions
368 1. Redistributions of source code must retain the above copyright
369 notice, this list of conditions and the following disclaimer.
370 2. Redistributions in binary form must reproduce the above copyright
371 notice, this list of conditions and the following disclaimer in the
372 documentation and/or other materials provided with the distribution.
373 3. Neither the name of the project nor the names of its contributors
374 may be used to endorse or promote products derived from this software
375 without specific prior written permission.
377 THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
378 GAI_ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
379 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
380 ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
381 FOR GAI_ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
382 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
383 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
384 HOWEVER CAUSED AND ON GAI_ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
385 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN GAI_ANY WAY
386 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
390 Floating point exception control
391 --------------------------------
393 The source for the :mod:`fpectl` module includes the following notice::
395 ---------------------------------------------------------------------
396 / Copyright (c) 1996. \
397 | The Regents of the University of California. |
398 | All rights reserved. |
400 | Permission to use, copy, modify, and distribute this software for |
401 | any purpose without fee is hereby granted, provided that this en- |
402 | tire notice is included in all copies of any software which is or |
403 | includes a copy or modification of this software and in all |
404 | copies of the supporting documentation for such software. |
406 | This work was produced at the University of California, Lawrence |
407 | Livermore National Laboratory under contract no. W-7405-ENG-48 |
408 | between the U.S. Department of Energy and The Regents of the |
409 | University of California for the operation of UC LLNL. |
413 | This software was prepared as an account of work sponsored by an |
414 | agency of the United States Government. Neither the United States |
415 | Government nor the University of California nor any of their em- |
416 | ployees, makes any warranty, express or implied, or assumes any |
417 | liability or responsibility for the accuracy, completeness, or |
418 | usefulness of any information, apparatus, product, or process |
419 | disclosed, or represents that its use would not infringe |
420 | privately-owned rights. Reference herein to any specific commer- |
421 | cial products, process, or service by trade name, trademark, |
422 | manufacturer, or otherwise, does not necessarily constitute or |
423 | imply its endorsement, recommendation, or favoring by the United |
424 | States Government or the University of California. The views and |
425 | opinions of authors expressed herein do not necessarily state or |
426 | reflect those of the United States Government or the University |
427 | of California, and shall not be used for advertising or product |
428 \ endorsement purposes. /
429 ---------------------------------------------------------------------
432 MD5 message digest algorithm
433 ----------------------------
435 The source code for the :mod:`md5` module contains the following notice::
437 Copyright (C) 1999, 2002 Aladdin Enterprises. All rights reserved.
439 This software is provided 'as-is', without any express or implied
440 warranty. In no event will the authors be held liable for any damages
441 arising from the use of this software.
443 Permission is granted to anyone to use this software for any purpose,
444 including commercial applications, and to alter it and redistribute it
445 freely, subject to the following restrictions:
447 1. The origin of this software must not be misrepresented; you must not
448 claim that you wrote the original software. If you use this software
449 in a product, an acknowledgment in the product documentation would be
450 appreciated but is not required.
451 2. Altered source versions must be plainly marked as such, and must not be
452 misrepresented as being the original software.
453 3. This notice may not be removed or altered from any source distribution.
458 Independent implementation of MD5 (RFC 1321).
460 This code implements the MD5 Algorithm defined in RFC 1321, whose
462 http://www.ietf.org/rfc/rfc1321.txt
463 The code is derived from the text of the RFC, including the test suite
464 (section A.5) but excluding the rest of Appendix A. It does not include
465 any code or documentation that is identified in the RFC as being
468 The original and principal author of md5.h is L. Peter Deutsch
469 <ghost@aladdin.com>. Other authors are noted in the change history
470 that follows (in reverse chronological order):
472 2002-04-13 lpd Removed support for non-ANSI compilers; removed
473 references to Ghostscript; clarified derivation from RFC 1321;
474 now handles byte order either statically or dynamically.
475 1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
476 1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
477 added conditionalization for C++ compilation from Martin
478 Purschke <purschke@bnl.gov>.
479 1999-05-03 lpd Original version.
482 Asynchronous socket services
483 ----------------------------
485 The :mod:`asynchat` and :mod:`asyncore` modules contain the following notice::
487 Copyright 1996 by Sam Rushing
491 Permission to use, copy, modify, and distribute this software and
492 its documentation for any purpose and without fee is hereby
493 granted, provided that the above copyright notice appear in all
494 copies and that both that copyright notice and this permission
495 notice appear in supporting documentation, and that the name of Sam
496 Rushing not be used in advertising or publicity pertaining to
497 distribution of the software without specific, written prior
500 SAM RUSHING DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
501 INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
502 NO EVENT SHALL SAM RUSHING BE LIABLE FOR ANY SPECIAL, INDIRECT OR
503 CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
504 OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
505 NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
506 CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
512 The :mod:`Cookie` module contains the following notice::
514 Copyright 2000 by Timothy O'Malley <timo@alum.mit.edu>
518 Permission to use, copy, modify, and distribute this software
519 and its documentation for any purpose and without fee is hereby
520 granted, provided that the above copyright notice appear in all
521 copies and that both that copyright notice and this permission
522 notice appear in supporting documentation, and that the name of
523 Timothy O'Malley not be used in advertising or publicity
524 pertaining to distribution of the software without specific, written
527 Timothy O'Malley DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
528 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
529 AND FITNESS, IN NO EVENT SHALL Timothy O'Malley BE LIABLE FOR
530 ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
531 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
532 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
533 ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
534 PERFORMANCE OF THIS SOFTWARE.
540 The :mod:`profile` and :mod:`pstats` modules contain the following notice::
542 Copyright 1994, by InfoSeek Corporation, all rights reserved.
543 Written by James Roskind
545 Permission to use, copy, modify, and distribute this Python software
546 and its associated documentation for any purpose (subject to the
547 restriction in the following sentence) without fee is hereby granted,
548 provided that the above copyright notice appears in all copies, and
549 that both that copyright notice and this permission notice appear in
550 supporting documentation, and that the name of InfoSeek not be used in
551 advertising or publicity pertaining to distribution of the software
552 without specific, written prior permission. This permission is
553 explicitly restricted to the copying and modification of the software
554 to remain in Python, compiled Python, or other languages (such as C)
555 wherein the modified or derived code is exclusively imported into a
558 INFOSEEK CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
559 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
560 FITNESS. IN NO EVENT SHALL INFOSEEK CORPORATION BE LIABLE FOR ANY
561 SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
562 RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
563 CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
564 CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
570 The :mod:`trace` module contains the following notice::
572 portions copyright 2001, Autonomous Zones Industries, Inc., all rights...
573 err... reserved and offered to the public under the terms of the
575 Author: Zooko O'Whielacronx
577 mailto:zooko@zooko.com
579 Copyright 2000, Mojam Media, Inc., all rights reserved.
580 Author: Skip Montanaro
582 Copyright 1999, Bioreason, Inc., all rights reserved.
585 Copyright 1995-1997, Automatrix, Inc., all rights reserved.
586 Author: Skip Montanaro
588 Copyright 1991-1995, Stichting Mathematisch Centrum, all rights reserved.
591 Permission to use, copy, modify, and distribute this Python software and
592 its associated documentation for any purpose without fee is hereby
593 granted, provided that the above copyright notice appears in all copies,
594 and that both that copyright notice and this permission notice appear in
595 supporting documentation, and that the name of neither Automatrix,
596 Bioreason or Mojam Media be used in advertising or publicity pertaining to
597 distribution of the software without specific, written prior permission.
600 UUencode and UUdecode functions
601 -------------------------------
603 The :mod:`uu` module contains the following notice::
605 Copyright 1994 by Lance Ellinghouse
606 Cathedral City, California Republic, United States of America.
608 Permission to use, copy, modify, and distribute this software and its
609 documentation for any purpose and without fee is hereby granted,
610 provided that the above copyright notice appear in all copies and that
611 both that copyright notice and this permission notice appear in
612 supporting documentation, and that the name of Lance Ellinghouse
613 not be used in advertising or publicity pertaining to distribution
614 of the software without specific, written prior permission.
615 LANCE ELLINGHOUSE DISCLAIMS ALL WARRANTIES WITH REGARD TO
616 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
617 FITNESS, IN NO EVENT SHALL LANCE ELLINGHOUSE CENTRUM BE LIABLE
618 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
619 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
620 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
621 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
623 Modified by Jack Jansen, CWI, July 1995:
624 - Use binascii module to do the actual line-by-line conversion
625 between ascii and binary. This results in a 1000-fold speedup. The C
626 version is still 5 times faster, though.
627 - Arguments more compliant with Python standard
630 XML Remote Procedure Calls
631 --------------------------
633 The :mod:`xmlrpclib` module contains the following notice::
635 The XML-RPC client interface is
637 Copyright (c) 1999-2002 by Secret Labs AB
638 Copyright (c) 1999-2002 by Fredrik Lundh
640 By obtaining, using, and/or copying this software and/or its
641 associated documentation, you agree that you have read, understood,
642 and will comply with the following terms and conditions:
644 Permission to use, copy, modify, and distribute this software and
645 its associated documentation for any purpose and without fee is
646 hereby granted, provided that the above copyright notice appears in
647 all copies, and that both that copyright notice and this permission
648 notice appear in supporting documentation, and that the name of
649 Secret Labs AB or the author not be used in advertising or publicity
650 pertaining to distribution of the software without specific, written
653 SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
654 TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANT-
655 ABILITY AND FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR
656 BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
657 DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
658 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
659 ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
666 The :mod:`test_epoll` contains the following notice::
668 Copyright (c) 2001-2006 Twisted Matrix Laboratories.
670 Permission is hereby granted, free of charge, to any person obtaining
671 a copy of this software and associated documentation files (the
672 "Software"), to deal in the Software without restriction, including
673 without limitation the rights to use, copy, modify, merge, publish,
674 distribute, sublicense, and/or sell copies of the Software, and to
675 permit persons to whom the Software is furnished to do so, subject to
676 the following conditions:
678 The above copyright notice and this permission notice shall be
679 included in all copies or substantial portions of the Software.
681 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
682 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
683 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
684 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
685 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
686 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
687 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
692 The :mod:`select` and contains the following notice for the kqueue interface::
694 Copyright (c) 2000 Doug White, 2006 James Knight, 2007 Christian Heimes
697 Redistribution and use in source and binary forms, with or without
698 modification, are permitted provided that the following conditions
700 1. Redistributions of source code must retain the above copyright
701 notice, this list of conditions and the following disclaimer.
702 2. Redistributions in binary form must reproduce the above copyright
703 notice, this list of conditions and the following disclaimer in the
704 documentation and/or other materials provided with the distribution.
706 THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
707 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
708 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
709 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
710 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
711 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
712 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
713 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
714 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
715 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
722 The file :file:`Python/dtoa.c`, which supplies C functions dtoa and
723 strtod for conversion of C doubles to and from strings, is derived
724 from the file of the same name by David M. Gay, currently available
725 from http://www.netlib.org/fp/. The original file, as retrieved on
726 March 16, 2009, contains the following copyright and licensing
729 /****************************************************************
731 * The author of this software is David M. Gay.
733 * Copyright (c) 1991, 2000, 2001 by Lucent Technologies.
735 * Permission to use, copy, modify, and distribute this software for any
736 * purpose without fee is hereby granted, provided that this entire notice
737 * is included in all copies of any software which is or includes a copy
738 * or modification of this software and in all copies of the supporting
739 * documentation for such software.
741 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED
742 * WARRANTY. IN PARTICULAR, NEITHER THE AUTHOR NOR LUCENT MAKES ANY
743 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY
744 * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
746 ***************************************************************/