1.. highlight:: none 2 3.. _history-and-license: 4 5******************* 6History and License 7******************* 8 9 10History of the software 11======================= 12 13Python was created in the early 1990s by Guido van Rossum at Stichting 14Mathematisch Centrum (CWI, see https://www.cwi.nl/) in the Netherlands as a 15successor of a language called ABC. Guido remains Python's principal author, 16although it includes many contributions from others. 17 18In 1995, Guido continued his work on Python at the Corporation for National 19Research Initiatives (CNRI, see https://www.cnri.reston.va.us/) in Reston, 20Virginia where he released several versions of the software. 21 22In May 2000, Guido and the Python core development team moved to BeOpen.com to 23form the BeOpen PythonLabs team. In October of the same year, the PythonLabs 24team moved to Digital Creations (now Zope Corporation; see 25https://www.zope.org/). In 2001, the Python Software Foundation (PSF, see 26https://www.python.org/psf/) was formed, a non-profit organization created 27specifically to own Python-related Intellectual Property. Zope Corporation is a 28sponsoring member of the PSF. 29 30All Python releases are Open Source (see https://opensource.org/ for the Open 31Source Definition). Historically, most, but not all, Python releases have also 32been GPL-compatible; the table below summarizes the various releases. 33 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| 2.1.2 | 2.1.1 | 2002 | PSF | yes | 54+----------------+--------------+------------+------------+-----------------+ 55| 2.1.3 | 2.1.2 | 2002 | PSF | yes | 56+----------------+--------------+------------+------------+-----------------+ 57| 2.2 and above | 2.1.1 | 2001-now | PSF | yes | 58+----------------+--------------+------------+------------+-----------------+ 59 60.. note:: 61 62 GPL-compatible doesn't mean that we're distributing Python under the GPL. All 63 Python licenses, unlike the GPL, let you distribute a modified version without 64 making your changes open source. The GPL-compatible licenses make it possible to 65 combine Python with other software that is released under the GPL; the others 66 don't. 67 68Thanks to the many outside volunteers who have worked under Guido's direction to 69make these releases possible. 70 71 72Terms and conditions for accessing or otherwise using Python 73============================================================ 74 75Python software and documentation are licensed under the 76:ref:`PSF License Agreement <PSF-license>`. 77 78Starting with Python 3.8.6, examples, recipes, and other code in 79the documentation are dual licensed under the PSF License Agreement 80and the :ref:`Zero-Clause BSD license <BSD0>`. 81 82Some software incorporated into Python is under different licenses. 83The licenses are listed with code falling under that license. 84See :ref:`OtherLicenses` for an incomplete list of these licenses. 85 86 87.. _PSF-license: 88 89PSF LICENSE AGREEMENT FOR PYTHON |release| 90------------------------------------------ 91 92.. parsed-literal:: 93 94 1. This LICENSE AGREEMENT is between the Python Software Foundation ("PSF"), and 95 the Individual or Organization ("Licensee") accessing and otherwise using Python 96 |release| software in source or binary form and its associated documentation. 97 98 2. Subject to the terms and conditions of this License Agreement, PSF hereby 99 grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce, 100 analyze, test, perform and/or display publicly, prepare derivative works, 101 distribute, and otherwise use Python |release| alone or in any derivative 102 version, provided, however, that PSF's License Agreement and PSF's notice of 103 copyright, i.e., "Copyright © 2001-2021 Python Software Foundation; All Rights 104 Reserved" are retained in Python |release| alone or in any derivative version 105 prepared by Licensee. 106 107 3. In the event Licensee prepares a derivative work that is based on or 108 incorporates Python |release| or any part thereof, and wants to make the 109 derivative work available to others as provided herein, then Licensee hereby 110 agrees to include in any such work a brief summary of the changes made to Python 111 |release|. 112 113 4. PSF is making Python |release| available to Licensee on an "AS IS" basis. 114 PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF 115 EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND DISCLAIMS ANY REPRESENTATION OR 116 WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE 117 USE OF PYTHON |release| WILL NOT INFRINGE ANY THIRD PARTY RIGHTS. 118 119 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON |release| 120 FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF 121 MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON |release|, OR ANY DERIVATIVE 122 THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. 123 124 6. This License Agreement will automatically terminate upon a material breach of 125 its terms and conditions. 126 127 7. Nothing in this License Agreement shall be deemed to create any relationship 128 of agency, partnership, or joint venture between PSF and Licensee. This License 129 Agreement does not grant permission to use PSF trademarks or trade name in a 130 trademark sense to endorse or promote products or services of Licensee, or any 131 third party. 132 133 8. By copying, installing or otherwise using Python |release|, Licensee agrees 134 to be bound by the terms and conditions of this License Agreement. 135 136 137BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0 138------------------------------------------- 139 140BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1 141 142.. parsed-literal:: 143 144 1. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an office at 145 160 Saratoga Avenue, Santa Clara, CA 95051, and the Individual or Organization 146 ("Licensee") accessing and otherwise using this software in source or binary 147 form and its associated documentation ("the Software"). 148 149 2. Subject to the terms and conditions of this BeOpen Python License Agreement, 150 BeOpen hereby grants Licensee a non-exclusive, royalty-free, world-wide license 151 to reproduce, analyze, test, perform and/or display publicly, prepare derivative 152 works, distribute, and otherwise use the Software alone or in any derivative 153 version, 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" basis. 157 BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF 158 EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND DISCLAIMS ANY REPRESENTATION OR 159 WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE 160 USE OF THE SOFTWARE WILL NOT INFRINGE ANY THIRD PARTY RIGHTS. 161 162 4. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE SOFTWARE FOR 163 ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF USING, 164 MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY DERIVATIVE THEREOF, EVEN IF 165 ADVISED OF THE POSSIBILITY THEREOF. 166 167 5. This License Agreement will automatically terminate upon a material breach of 168 its terms and conditions. 169 170 6. This License Agreement shall be governed by and interpreted in all respects 171 by the law of the State of California, excluding conflict of law provisions. 172 Nothing in this License Agreement shall be deemed to create any relationship of 173 agency, partnership, or joint venture between BeOpen and Licensee. This License 174 Agreement does not grant permission to use BeOpen trademarks or trade names in a 175 trademark sense to endorse or promote products or services of Licensee, or any 176 third party. As an exception, the "BeOpen Python" logos available at 177 http://www.pythonlabs.com/logos.html may be used according to the permissions 178 granted on that web page. 179 180 7. By copying, installing or otherwise using the software, Licensee agrees to be 181 bound by the terms and conditions of this License Agreement. 182 183 184CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1 185--------------------------------------- 186 187.. parsed-literal:: 188 189 1. This LICENSE AGREEMENT is between the Corporation for National Research 190 Initiatives, having an office at 1895 Preston White Drive, Reston, VA 20191 191 ("CNRI"), and the Individual or Organization ("Licensee") accessing and 192 otherwise using Python 1.6.1 software in source or binary form and its 193 associated documentation. 194 195 2. Subject to the terms and conditions of this License Agreement, CNRI hereby 196 grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce, 197 analyze, test, perform and/or display publicly, prepare derivative works, 198 distribute, and otherwise use Python 1.6.1 alone or in any derivative version, 199 provided, however, that CNRI's License Agreement and CNRI's notice of copyright, 200 i.e., "Copyright © 1995-2001 Corporation for National Research Initiatives; All 201 Rights Reserved" are retained in Python 1.6.1 alone or in any derivative version 202 prepared by Licensee. Alternately, in lieu of CNRI's License Agreement, 203 Licensee may substitute the following text (omitting the quotes): "Python 1.6.1 204 is made available subject to the terms and conditions in CNRI's License 205 Agreement. This Agreement together with Python 1.6.1 may be located on the 206 Internet using the following unique, persistent identifier (known as a handle): 207 1895.22/1013. This Agreement may also be obtained from a proxy server on the 208 Internet using the following URL: http://hdl.handle.net/1895.22/1013." 209 210 3. In the event Licensee prepares a derivative work that is based on or 211 incorporates Python 1.6.1 or any part thereof, and wants to make the derivative 212 work available to others as provided herein, then Licensee hereby agrees to 213 include in any such work a brief summary of the changes made to Python 1.6.1. 214 215 4. CNRI is making Python 1.6.1 available to Licensee on an "AS IS" basis. CNRI 216 MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED. BY WAY OF EXAMPLE, 217 BUT NOT LIMITATION, CNRI MAKES NO AND DISCLAIMS ANY REPRESENTATION OR WARRANTY 218 OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF 219 PYTHON 1.6.1 WILL NOT INFRINGE ANY THIRD PARTY RIGHTS. 220 221 5. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON 1.6.1 FOR 222 ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF 223 MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1, OR ANY DERIVATIVE 224 THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF. 225 226 6. This License Agreement will automatically terminate upon a material breach of 227 its terms and conditions. 228 229 7. This License Agreement shall be governed by the federal intellectual property 230 law of the United States, including without limitation the federal copyright 231 law, and, to the extent such U.S. federal law does not apply, by the law of the 232 Commonwealth of Virginia, excluding Virginia's conflict of law provisions. 233 Notwithstanding the foregoing, with regard to derivative works based on Python 234 1.6.1 that incorporate non-separable material that was previously distributed 235 under the GNU General Public License (GPL), the law of the Commonwealth of 236 Virginia shall govern this License Agreement only as to issues arising under or 237 with respect to Paragraphs 4, 5, and 7 of this License Agreement. Nothing in 238 this License Agreement shall be deemed to create any relationship of agency, 239 partnership, or joint venture between CNRI and Licensee. This License Agreement 240 does not grant permission to use CNRI trademarks or trade name in a trademark 241 sense to endorse or promote products or services of Licensee, or any third 242 party. 243 244 8. By clicking on the "ACCEPT" button where indicated, or by copying, installing 245 or otherwise using Python 1.6.1, Licensee agrees to be bound by the terms and 246 conditions of this License Agreement. 247 248 249CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2 250-------------------------------------------------- 251 252.. parsed-literal:: 253 254 Copyright © 1991 - 1995, Stichting Mathematisch Centrum Amsterdam, The 255 Netherlands. All rights reserved. 256 257 Permission to use, copy, modify, and distribute this software and its 258 documentation for any purpose and without fee is hereby granted, provided that 259 the above copyright notice appear in all copies and that both that copyright 260 notice and this permission notice appear in supporting documentation, and that 261 the name of Stichting Mathematisch Centrum or CWI not be used in advertising or 262 publicity pertaining to distribution of the software without specific, written 263 prior permission. 264 265 STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS 266 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 267 EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE FOR ANY SPECIAL, INDIRECT 268 OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 269 DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 270 ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS 271 SOFTWARE. 272 273 274.. _BSD0: 275 276ZERO-CLAUSE BSD LICENSE FOR CODE IN THE PYTHON |release| DOCUMENTATION 277---------------------------------------------------------------------- 278 279.. parsed-literal:: 280 281 Permission to use, copy, modify, and/or distribute this software for any 282 purpose with or without fee is hereby granted. 283 284 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH 285 REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 286 AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, 287 INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM 288 LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR 289 OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 290 PERFORMANCE OF THIS SOFTWARE. 291 292 293.. _OtherLicenses: 294 295Licenses and Acknowledgements for Incorporated Software 296======================================================= 297 298This section is an incomplete, but growing list of licenses and acknowledgements 299for third-party software incorporated in the Python distribution. 300 301 302Mersenne Twister 303---------------- 304 305The :mod:`_random` module includes code based on a download from 306http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/MT2002/emt19937ar.html. The following are 307the verbatim comments from the original code:: 308 309 A C-program for MT19937, with initialization improved 2002/1/26. 310 Coded by Takuji Nishimura and Makoto Matsumoto. 311 312 Before using, initialize the state by using init_genrand(seed) 313 or init_by_array(init_key, key_length). 314 315 Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura, 316 All rights reserved. 317 318 Redistribution and use in source and binary forms, with or without 319 modification, are permitted provided that the following conditions 320 are met: 321 322 1. Redistributions of source code must retain the above copyright 323 notice, this list of conditions and the following disclaimer. 324 325 2. Redistributions in binary form must reproduce the above copyright 326 notice, this list of conditions and the following disclaimer in the 327 documentation and/or other materials provided with the distribution. 328 329 3. The names of its contributors may not be used to endorse or promote 330 products derived from this software without specific prior written 331 permission. 332 333 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 334 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 335 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 336 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR 337 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 338 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 339 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 340 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 341 LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 342 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 343 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 344 345 346 Any feedback is very welcome. 347 http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt.html 348 email: m-mat @ math.sci.hiroshima-u.ac.jp (remove space) 349 350 351Sockets 352------- 353 354The :mod:`socket` module uses the functions, :func:`getaddrinfo`, and 355:func:`getnameinfo`, which are coded in separate source files from the WIDE 356Project, http://www.wide.ad.jp/. :: 357 358 Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project. 359 All rights reserved. 360 361 Redistribution and use in source and binary forms, with or without 362 modification, are permitted provided that the following conditions 363 are met: 364 1. Redistributions of source code must retain the above copyright 365 notice, this list of conditions and the following disclaimer. 366 2. Redistributions in binary form must reproduce the above copyright 367 notice, this list of conditions and the following disclaimer in the 368 documentation and/or other materials provided with the distribution. 369 3. Neither the name of the project nor the names of its contributors 370 may be used to endorse or promote products derived from this software 371 without specific prior written permission. 372 373 THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND 374 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 375 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 376 ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE 377 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 378 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 379 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 380 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 381 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 382 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 383 SUCH DAMAGE. 384 385 386Asynchronous socket services 387---------------------------- 388 389The :mod:`asynchat` and :mod:`asyncore` modules contain the following notice:: 390 391 Copyright 1996 by Sam Rushing 392 393 All Rights Reserved 394 395 Permission to use, copy, modify, and distribute this software and 396 its documentation for any purpose and without fee is hereby 397 granted, provided that the above copyright notice appear in all 398 copies and that both that copyright notice and this permission 399 notice appear in supporting documentation, and that the name of Sam 400 Rushing not be used in advertising or publicity pertaining to 401 distribution of the software without specific, written prior 402 permission. 403 404 SAM RUSHING DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 405 INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN 406 NO EVENT SHALL SAM RUSHING BE LIABLE FOR ANY SPECIAL, INDIRECT OR 407 CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS 408 OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, 409 NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 410 CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 411 412 413Cookie management 414----------------- 415 416The :mod:`http.cookies` module contains the following notice:: 417 418 Copyright 2000 by Timothy O'Malley <timo@alum.mit.edu> 419 420 All Rights Reserved 421 422 Permission to use, copy, modify, and distribute this software 423 and its documentation for any purpose and without fee is hereby 424 granted, provided that the above copyright notice appear in all 425 copies and that both that copyright notice and this permission 426 notice appear in supporting documentation, and that the name of 427 Timothy O'Malley not be used in advertising or publicity 428 pertaining to distribution of the software without specific, written 429 prior permission. 430 431 Timothy O'Malley DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS 432 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 433 AND FITNESS, IN NO EVENT SHALL Timothy O'Malley BE LIABLE FOR 434 ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 435 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 436 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS 437 ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR 438 PERFORMANCE OF THIS SOFTWARE. 439 440 441Execution tracing 442----------------- 443 444The :mod:`trace` module contains the following notice:: 445 446 portions copyright 2001, Autonomous Zones Industries, Inc., all rights... 447 err... reserved and offered to the public under the terms of the 448 Python 2.2 license. 449 Author: Zooko O'Whielacronx 450 http://zooko.com/ 451 mailto:zooko@zooko.com 452 453 Copyright 2000, Mojam Media, Inc., all rights reserved. 454 Author: Skip Montanaro 455 456 Copyright 1999, Bioreason, Inc., all rights reserved. 457 Author: Andrew Dalke 458 459 Copyright 1995-1997, Automatrix, Inc., all rights reserved. 460 Author: Skip Montanaro 461 462 Copyright 1991-1995, Stichting Mathematisch Centrum, all rights reserved. 463 464 465 Permission to use, copy, modify, and distribute this Python software and 466 its associated documentation for any purpose without fee is hereby 467 granted, provided that the above copyright notice appears in all copies, 468 and that both that copyright notice and this permission notice appear in 469 supporting documentation, and that the name of neither Automatrix, 470 Bioreason or Mojam Media be used in advertising or publicity pertaining to 471 distribution of the software without specific, written prior permission. 472 473 474UUencode and UUdecode functions 475------------------------------- 476 477The :mod:`uu` module contains the following notice:: 478 479 Copyright 1994 by Lance Ellinghouse 480 Cathedral City, California Republic, United States of America. 481 All Rights Reserved 482 Permission to use, copy, modify, and distribute this software and its 483 documentation for any purpose and without fee is hereby granted, 484 provided that the above copyright notice appear in all copies and that 485 both that copyright notice and this permission notice appear in 486 supporting documentation, and that the name of Lance Ellinghouse 487 not be used in advertising or publicity pertaining to distribution 488 of the software without specific, written prior permission. 489 LANCE ELLINGHOUSE DISCLAIMS ALL WARRANTIES WITH REGARD TO 490 THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND 491 FITNESS, IN NO EVENT SHALL LANCE ELLINGHOUSE CENTRUM BE LIABLE 492 FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 493 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 494 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT 495 OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 496 497 Modified by Jack Jansen, CWI, July 1995: 498 - Use binascii module to do the actual line-by-line conversion 499 between ascii and binary. This results in a 1000-fold speedup. The C 500 version is still 5 times faster, though. 501 - Arguments more compliant with Python standard 502 503 504XML Remote Procedure Calls 505-------------------------- 506 507The :mod:`xmlrpc.client` module contains the following notice:: 508 509 The XML-RPC client interface is 510 511 Copyright (c) 1999-2002 by Secret Labs AB 512 Copyright (c) 1999-2002 by Fredrik Lundh 513 514 By obtaining, using, and/or copying this software and/or its 515 associated documentation, you agree that you have read, understood, 516 and will comply with the following terms and conditions: 517 518 Permission to use, copy, modify, and distribute this software and 519 its associated documentation for any purpose and without fee is 520 hereby granted, provided that the above copyright notice appears in 521 all copies, and that both that copyright notice and this permission 522 notice appear in supporting documentation, and that the name of 523 Secret Labs AB or the author not be used in advertising or publicity 524 pertaining to distribution of the software without specific, written 525 prior permission. 526 527 SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD 528 TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANT- 529 ABILITY AND FITNESS. IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR 530 BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY 531 DAMAGES 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 PERFORMANCE 534 OF THIS SOFTWARE. 535 536 537test_epoll 538---------- 539 540The :mod:`test_epoll` module contains the following notice:: 541 542 Copyright (c) 2001-2006 Twisted Matrix Laboratories. 543 544 Permission is hereby granted, free of charge, to any person obtaining 545 a copy of this software and associated documentation files (the 546 "Software"), to deal in the Software without restriction, including 547 without limitation the rights to use, copy, modify, merge, publish, 548 distribute, sublicense, and/or sell copies of the Software, and to 549 permit persons to whom the Software is furnished to do so, subject to 550 the following conditions: 551 552 The above copyright notice and this permission notice shall be 553 included in all copies or substantial portions of the Software. 554 555 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 556 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 557 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 558 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE 559 LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION 560 OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 561 WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 562 563Select kqueue 564------------- 565 566The :mod:`select` module contains the following notice for the kqueue 567interface:: 568 569 Copyright (c) 2000 Doug White, 2006 James Knight, 2007 Christian Heimes 570 All rights reserved. 571 572 Redistribution and use in source and binary forms, with or without 573 modification, are permitted provided that the following conditions 574 are met: 575 1. Redistributions of source code must retain the above copyright 576 notice, this list of conditions and the following disclaimer. 577 2. Redistributions in binary form must reproduce the above copyright 578 notice, this list of conditions and the following disclaimer in the 579 documentation and/or other materials provided with the distribution. 580 581 THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 582 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 583 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 584 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 585 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 586 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 587 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 588 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 589 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 590 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 591 SUCH DAMAGE. 592 593 594SipHash24 595--------- 596 597The file :file:`Python/pyhash.c` contains Marek Majkowski' implementation of 598Dan Bernstein's SipHash24 algorithm. It contains the following note:: 599 600 <MIT License> 601 Copyright (c) 2013 Marek Majkowski <marek@popcount.org> 602 603 Permission is hereby granted, free of charge, to any person obtaining a copy 604 of this software and associated documentation files (the "Software"), to deal 605 in the Software without restriction, including without limitation the rights 606 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 607 copies of the Software, and to permit persons to whom the Software is 608 furnished to do so, subject to the following conditions: 609 610 The above copyright notice and this permission notice shall be included in 611 all copies or substantial portions of the Software. 612 </MIT License> 613 614 Original location: 615 https://github.com/majek/csiphash/ 616 617 Solution inspired by code from: 618 Samuel Neves (supercop/crypto_auth/siphash24/little) 619 djb (supercop/crypto_auth/siphash24/little2) 620 Jean-Philippe Aumasson (https://131002.net/siphash/siphash24.c) 621 622 623strtod and dtoa 624--------------- 625 626The file :file:`Python/dtoa.c`, which supplies C functions dtoa and 627strtod for conversion of C doubles to and from strings, is derived 628from the file of the same name by David M. Gay, currently available 629from http://www.netlib.org/fp/. The original file, as retrieved on 630March 16, 2009, contains the following copyright and licensing 631notice:: 632 633 /**************************************************************** 634 * 635 * The author of this software is David M. Gay. 636 * 637 * Copyright (c) 1991, 2000, 2001 by Lucent Technologies. 638 * 639 * Permission to use, copy, modify, and distribute this software for any 640 * purpose without fee is hereby granted, provided that this entire notice 641 * is included in all copies of any software which is or includes a copy 642 * or modification of this software and in all copies of the supporting 643 * documentation for such software. 644 * 645 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED 646 * WARRANTY. IN PARTICULAR, NEITHER THE AUTHOR NOR LUCENT MAKES ANY 647 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY 648 * OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE. 649 * 650 ***************************************************************/ 651 652 653OpenSSL 654------- 655 656The modules :mod:`hashlib`, :mod:`posix`, :mod:`ssl`, :mod:`crypt` use 657the OpenSSL library for added performance if made available by the 658operating system. Additionally, the Windows and Mac OS X installers for 659Python may include a copy of the OpenSSL libraries, so we include a copy 660of the OpenSSL license here:: 661 662 663 LICENSE ISSUES 664 ============== 665 666 The OpenSSL toolkit stays under a dual license, i.e. both the conditions of 667 the OpenSSL License and the original SSLeay license apply to the toolkit. 668 See below for the actual license texts. Actually both licenses are BSD-style 669 Open Source licenses. In case of any license issues related to OpenSSL 670 please contact openssl-core@openssl.org. 671 672 OpenSSL License 673 --------------- 674 675 /* ==================================================================== 676 * Copyright (c) 1998-2008 The OpenSSL Project. All rights reserved. 677 * 678 * Redistribution and use in source and binary forms, with or without 679 * modification, are permitted provided that the following conditions 680 * are met: 681 * 682 * 1. Redistributions of source code must retain the above copyright 683 * notice, this list of conditions and the following disclaimer. 684 * 685 * 2. Redistributions in binary form must reproduce the above copyright 686 * notice, this list of conditions and the following disclaimer in 687 * the documentation and/or other materials provided with the 688 * distribution. 689 * 690 * 3. All advertising materials mentioning features or use of this 691 * software must display the following acknowledgment: 692 * "This product includes software developed by the OpenSSL Project 693 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 694 * 695 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 696 * endorse or promote products derived from this software without 697 * prior written permission. For written permission, please contact 698 * openssl-core@openssl.org. 699 * 700 * 5. Products derived from this software may not be called "OpenSSL" 701 * nor may "OpenSSL" appear in their names without prior written 702 * permission of the OpenSSL Project. 703 * 704 * 6. Redistributions of any form whatsoever must retain the following 705 * acknowledgment: 706 * "This product includes software developed by the OpenSSL Project 707 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 708 * 709 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 710 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 711 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 712 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 713 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 714 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 715 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 716 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 717 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 718 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 719 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 720 * OF THE POSSIBILITY OF SUCH DAMAGE. 721 * ==================================================================== 722 * 723 * This product includes cryptographic software written by Eric Young 724 * (eay@cryptsoft.com). This product includes software written by Tim 725 * Hudson (tjh@cryptsoft.com). 726 * 727 */ 728 729 Original SSLeay License 730 ----------------------- 731 732 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 733 * All rights reserved. 734 * 735 * This package is an SSL implementation written 736 * by Eric Young (eay@cryptsoft.com). 737 * The implementation was written so as to conform with Netscapes SSL. 738 * 739 * This library is free for commercial and non-commercial use as long as 740 * the following conditions are aheared to. The following conditions 741 * apply to all code found in this distribution, be it the RC4, RSA, 742 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 743 * included with this distribution is covered by the same copyright terms 744 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 745 * 746 * Copyright remains Eric Young's, and as such any Copyright notices in 747 * the code are not to be removed. 748 * If this package is used in a product, Eric Young should be given attribution 749 * as the author of the parts of the library used. 750 * This can be in the form of a textual message at program startup or 751 * in documentation (online or textual) provided with the package. 752 * 753 * Redistribution and use in source and binary forms, with or without 754 * modification, are permitted provided that the following conditions 755 * are met: 756 * 1. Redistributions of source code must retain the copyright 757 * notice, this list of conditions and the following disclaimer. 758 * 2. Redistributions in binary form must reproduce the above copyright 759 * notice, this list of conditions and the following disclaimer in the 760 * documentation and/or other materials provided with the distribution. 761 * 3. All advertising materials mentioning features or use of this software 762 * must display the following acknowledgement: 763 * "This product includes cryptographic software written by 764 * Eric Young (eay@cryptsoft.com)" 765 * The word 'cryptographic' can be left out if the rouines from the library 766 * being used are not cryptographic related :-). 767 * 4. If you include any Windows specific code (or a derivative thereof) from 768 * the apps directory (application code) you must include an acknowledgement: 769 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 770 * 771 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 772 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 773 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 774 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 775 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 776 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 777 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 778 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 779 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 780 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 781 * SUCH DAMAGE. 782 * 783 * The licence and distribution terms for any publically available version or 784 * derivative of this code cannot be changed. i.e. this code cannot simply be 785 * copied and put under another distribution licence 786 * [including the GNU Public Licence.] 787 */ 788 789 790expat 791----- 792 793The :mod:`pyexpat` extension is built using an included copy of the expat 794sources unless the build is configured ``--with-system-expat``:: 795 796 Copyright (c) 1998, 1999, 2000 Thai Open Source Software Center Ltd 797 and Clark Cooper 798 799 Permission is hereby granted, free of charge, to any person obtaining 800 a copy of this software and associated documentation files (the 801 "Software"), to deal in the Software without restriction, including 802 without limitation the rights to use, copy, modify, merge, publish, 803 distribute, sublicense, and/or sell copies of the Software, and to 804 permit persons to whom the Software is furnished to do so, subject to 805 the following conditions: 806 807 The above copyright notice and this permission notice shall be included 808 in all copies or substantial portions of the Software. 809 810 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 811 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 812 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 813 IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY 814 CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 815 TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 816 SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 817 818 819libffi 820------ 821 822The :mod:`_ctypes` extension is built using an included copy of the libffi 823sources unless the build is configured ``--with-system-libffi``:: 824 825 Copyright (c) 1996-2008 Red Hat, Inc and others. 826 827 Permission is hereby granted, free of charge, to any person obtaining 828 a copy of this software and associated documentation files (the 829 ``Software''), to deal in the Software without restriction, including 830 without limitation the rights to use, copy, modify, merge, publish, 831 distribute, sublicense, and/or sell copies of the Software, and to 832 permit persons to whom the Software is furnished to do so, subject to 833 the following conditions: 834 835 The above copyright notice and this permission notice shall be included 836 in all copies or substantial portions of the Software. 837 838 THE SOFTWARE IS PROVIDED ``AS IS'', WITHOUT WARRANTY OF ANY KIND, 839 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 840 MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 841 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 842 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 843 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 844 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 845 DEALINGS IN THE SOFTWARE. 846 847 848zlib 849---- 850 851The :mod:`zlib` extension is built using an included copy of the zlib 852sources if the zlib version found on the system is too old to be 853used for the build:: 854 855 Copyright (C) 1995-2011 Jean-loup Gailly and Mark Adler 856 857 This software is provided 'as-is', without any express or implied 858 warranty. In no event will the authors be held liable for any damages 859 arising from the use of this software. 860 861 Permission is granted to anyone to use this software for any purpose, 862 including commercial applications, and to alter it and redistribute it 863 freely, subject to the following restrictions: 864 865 1. The origin of this software must not be misrepresented; you must not 866 claim that you wrote the original software. If you use this software 867 in a product, an acknowledgment in the product documentation would be 868 appreciated but is not required. 869 870 2. Altered source versions must be plainly marked as such, and must not be 871 misrepresented as being the original software. 872 873 3. This notice may not be removed or altered from any source distribution. 874 875 Jean-loup Gailly Mark Adler 876 jloup@gzip.org madler@alumni.caltech.edu 877 878 879cfuhash 880------- 881 882The implementation of the hash table used by the :mod:`tracemalloc` is based 883on the cfuhash project:: 884 885 Copyright (c) 2005 Don Owens 886 All rights reserved. 887 888 This code is released under the BSD license: 889 890 Redistribution and use in source and binary forms, with or without 891 modification, are permitted provided that the following conditions 892 are met: 893 894 * Redistributions of source code must retain the above copyright 895 notice, this list of conditions and the following disclaimer. 896 897 * Redistributions in binary form must reproduce the above 898 copyright notice, this list of conditions and the following 899 disclaimer in the documentation and/or other materials provided 900 with the distribution. 901 902 * Neither the name of the author nor the names of its 903 contributors may be used to endorse or promote products derived 904 from this software without specific prior written permission. 905 906 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 907 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 908 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 909 FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 910 COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 911 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 912 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 913 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 914 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 915 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 916 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 917 OF THE POSSIBILITY OF SUCH DAMAGE. 918 919 920libmpdec 921-------- 922 923The :mod:`_decimal` module is built using an included copy of the libmpdec 924library unless the build is configured ``--with-system-libmpdec``:: 925 926 Copyright (c) 2008-2016 Stefan Krah. All rights reserved. 927 928 Redistribution and use in source and binary forms, with or without 929 modification, are permitted provided that the following conditions 930 are met: 931 932 1. Redistributions of source code must retain the above copyright 933 notice, this list of conditions and the following disclaimer. 934 935 2. Redistributions in binary form must reproduce the above copyright 936 notice, this list of conditions and the following disclaimer in the 937 documentation and/or other materials provided with the distribution. 938 939 THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND 940 ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 941 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 942 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 943 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 944 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 945 OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 946 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 947 LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 948 OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 949 SUCH DAMAGE. 950 951 952W3C C14N test suite 953------------------- 954 955The C14N 2.0 test suite in the :mod:`test` package 956(``Lib/test/xmltestdata/c14n-20/``) was retrieved from the W3C website at 957https://www.w3.org/TR/xml-c14n2-testcases/ and is distributed under the 9583-clause BSD license: 959 960 Copyright (c) 2013 W3C(R) (MIT, ERCIM, Keio, Beihang), 961 All Rights Reserved. 962 963 Redistribution and use in source and binary forms, with or without 964 modification, are permitted provided that the following conditions 965 are met: 966 967 * Redistributions of works must retain the original copyright notice, 968 this list of conditions and the following disclaimer. 969 * Redistributions in binary form must reproduce the original copyright 970 notice, this list of conditions and the following disclaimer in the 971 documentation and/or other materials provided with the distribution. 972 * Neither the name of the W3C nor the names of its contributors may be 973 used to endorse or promote products derived from this work without 974 specific prior written permission. 975 976 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 977 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 978 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 979 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 980 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 981 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 982 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 983 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 984 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 985 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 986 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 987