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+.. highlightlang:: none
+
+.. _history-and-license:
+
+*******************
+History and License
+*******************
+
+
+History of the software
+=======================
+
+Python was created in the early 1990s by Guido van Rossum at Stichting
+Mathematisch Centrum (CWI, see http://www.cwi.nl/) in the Netherlands as a
+successor of a language called ABC.  Guido remains Python's principal author,
+although it includes many contributions from others.
+
+In 1995, Guido continued his work on Python at the Corporation for National
+Research Initiatives (CNRI, see http://www.cnri.reston.va.us/) in Reston,
+Virginia where he released several versions of the software.
+
+In May 2000, Guido and the Python core development team moved to BeOpen.com to
+form the BeOpen PythonLabs team.  In October of the same year, the PythonLabs
+team moved to Digital Creations (now Zope Corporation; see
+http://www.zope.com/).  In 2001, the Python Software Foundation (PSF, see
+http://www.python.org/psf/) was formed, a non-profit organization created
+specifically to own Python-related Intellectual Property.  Zope Corporation is a
+sponsoring member of the PSF.
+
+All Python releases are Open Source (see http://www.opensource.org/ for the Open
+Source Definition). Historically, most, but not all, Python releases have also
+been GPL-compatible; the table below summarizes the various releases.
+
++----------------+--------------+-----------+------------+-----------------+
+| Release        | Derived from | Year      | Owner      | GPL compatible? |
++================+==============+===========+============+=================+
+| 0.9.0 thru 1.2 | n/a          | 1991-1995 | CWI        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 1.3 thru 1.5.2 | 1.2          | 1995-1999 | CNRI       | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 1.6            | 1.5.2        | 2000      | CNRI       | no              |
++----------------+--------------+-----------+------------+-----------------+
+| 2.0            | 1.6          | 2000      | BeOpen.com | no              |
++----------------+--------------+-----------+------------+-----------------+
+| 1.6.1          | 1.6          | 2001      | CNRI       | no              |
++----------------+--------------+-----------+------------+-----------------+
+| 2.1            | 2.0+1.6.1    | 2001      | PSF        | no              |
++----------------+--------------+-----------+------------+-----------------+
+| 2.0.1          | 2.0+1.6.1    | 2001      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.1.1          | 2.1+2.0.1    | 2001      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.2            | 2.1.1        | 2001      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.1.2          | 2.1.1        | 2002      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.1.3          | 2.1.2        | 2002      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.2.1          | 2.2          | 2002      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.2.2          | 2.2.1        | 2002      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.2.3          | 2.2.2        | 2002-2003 | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.3            | 2.2.2        | 2002-2003 | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.3.1          | 2.3          | 2002-2003 | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.3.2          | 2.3.1        | 2003      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.3.3          | 2.3.2        | 2003      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.3.4          | 2.3.3        | 2004      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.3.5          | 2.3.4        | 2005      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.4            | 2.3          | 2004      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.4.1          | 2.4          | 2005      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.4.2          | 2.4.1        | 2005      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.4.3          | 2.4.2        | 2006      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.4.4          | 2.4.3        | 2006      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.5            | 2.4          | 2006      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+| 2.5.1          | 2.5          | 2007      | PSF        | yes             |
++----------------+--------------+-----------+------------+-----------------+
+
+.. note::
+
+   GPL-compatible doesn't mean that we're distributing Python under the GPL.  All
+   Python licenses, unlike the GPL, let you distribute a modified version without
+   making your changes open source. The GPL-compatible licenses make it possible to
+   combine Python with other software that is released under the GPL; the others
+   don't.
+
+Thanks to the many outside volunteers who have worked under Guido's direction to
+make these releases possible.
+
+
+Terms and conditions for accessing or otherwise using Python
+============================================================
+
+
+.. centered:: PSF LICENSE AGREEMENT FOR PYTHON |release|
+
+#. This LICENSE AGREEMENT is between the Python Software Foundation ("PSF"), and
+   the Individual or Organization ("Licensee") accessing and otherwise using Python
+   |release| software in source or binary form and its associated documentation.
+
+#. Subject to the terms and conditions of this License Agreement, PSF hereby
+   grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
+   analyze, test, perform and/or display publicly, prepare derivative works,
+   distribute, and otherwise use Python |release| alone or in any derivative
+   version, provided, however, that PSF's License Agreement and PSF's notice of
+   copyright, i.e., "Copyright © 2001-2007 Python Software Foundation; All Rights
+   Reserved" are retained in Python |release| alone or in any derivative version
+   prepared by Licensee.
+
+#. In the event Licensee prepares a derivative work that is based on or
+   incorporates Python |release| or any part thereof, and wants to make the
+   derivative work available to others as provided herein, then Licensee hereby
+   agrees to include in any such work a brief summary of the changes made to Python
+   |release|.
+
+#. PSF is making Python |release| available to Licensee on an "AS IS" basis.
+   PSF MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED.  BY WAY OF
+   EXAMPLE, BUT NOT LIMITATION, PSF MAKES NO AND DISCLAIMS ANY REPRESENTATION OR
+   WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE
+   USE OF PYTHON |release| WILL NOT INFRINGE ANY THIRD PARTY RIGHTS.
+
+#. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON |release|
+   FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF
+   MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON |release|, OR ANY DERIVATIVE
+   THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+#. This License Agreement will automatically terminate upon a material breach of
+   its terms and conditions.
+
+#. Nothing in this License Agreement shall be deemed to create any relationship
+   of agency, partnership, or joint venture between PSF and Licensee.  This License
+   Agreement does not grant permission to use PSF trademarks or trade name in a
+   trademark sense to endorse or promote products or services of Licensee, or any
+   third party.
+
+#. By copying, installing or otherwise using Python |release|, Licensee agrees
+   to be bound by the terms and conditions of this License Agreement.
+
+
+.. centered:: BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
+
+
+.. centered:: BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
+
+#. This LICENSE AGREEMENT is between BeOpen.com ("BeOpen"), having an office at
+   160 Saratoga Avenue, Santa Clara, CA 95051, and the Individual or Organization
+   ("Licensee") accessing and otherwise using this software in source or binary
+   form and its associated documentation ("the Software").
+
+#. Subject to the terms and conditions of this BeOpen Python License Agreement,
+   BeOpen hereby grants Licensee a non-exclusive, royalty-free, world-wide license
+   to reproduce, analyze, test, perform and/or display publicly, prepare derivative
+   works, distribute, and otherwise use the Software alone or in any derivative
+   version, provided, however, that the BeOpen Python License is retained in the
+   Software, alone or in any derivative version prepared by Licensee.
+
+#. BeOpen is making the Software available to Licensee on an "AS IS" basis.
+   BEOPEN MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED.  BY WAY OF
+   EXAMPLE, BUT NOT LIMITATION, BEOPEN MAKES NO AND DISCLAIMS ANY REPRESENTATION OR
+   WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE
+   USE OF THE SOFTWARE WILL NOT INFRINGE ANY THIRD PARTY RIGHTS.
+
+#. BEOPEN SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF THE SOFTWARE FOR
+   ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF USING,
+   MODIFYING OR DISTRIBUTING THE SOFTWARE, OR ANY DERIVATIVE THEREOF, EVEN IF
+   ADVISED OF THE POSSIBILITY THEREOF.
+
+#. This License Agreement will automatically terminate upon a material breach of
+   its terms and conditions.
+
+#. This License Agreement shall be governed by and interpreted in all respects
+   by the law of the State of California, excluding conflict of law provisions.
+   Nothing in this License Agreement shall be deemed to create any relationship of
+   agency, partnership, or joint venture between BeOpen and Licensee.  This License
+   Agreement does not grant permission to use BeOpen trademarks or trade names in a
+   trademark sense to endorse or promote products or services of Licensee, or any
+   third party.  As an exception, the "BeOpen Python" logos available at
+   http://www.pythonlabs.com/logos.html may be used according to the permissions
+   granted on that web page.
+
+#. By copying, installing or otherwise using the software, Licensee agrees to be
+   bound by the terms and conditions of this License Agreement.
+
+
+.. centered:: CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
+
+#. This LICENSE AGREEMENT is between the Corporation for National Research
+   Initiatives, having an office at 1895 Preston White Drive, Reston, VA 20191
+   ("CNRI"), and the Individual or Organization ("Licensee") accessing and
+   otherwise using Python 1.6.1 software in source or binary form and its
+   associated documentation.
+
+#. Subject to the terms and conditions of this License Agreement, CNRI hereby
+   grants Licensee a nonexclusive, royalty-free, world-wide license to reproduce,
+   analyze, test, perform and/or display publicly, prepare derivative works,
+   distribute, and otherwise use Python 1.6.1 alone or in any derivative version,
+   provided, however, that CNRI's License Agreement and CNRI's notice of copyright,
+   i.e., "Copyright © 1995-2001 Corporation for National Research Initiatives; All
+   Rights Reserved" are retained in Python 1.6.1 alone or in any derivative version
+   prepared by Licensee.  Alternately, in lieu of CNRI's License Agreement,
+   Licensee may substitute the following text (omitting the quotes): "Python 1.6.1
+   is made available subject to the terms and conditions in CNRI's License
+   Agreement.  This Agreement together with Python 1.6.1 may be located on the
+   Internet using the following unique, persistent identifier (known as a handle):
+   1895.22/1013.  This Agreement may also be obtained from a proxy server on the
+   Internet using the following URL: http://hdl.handle.net/1895.22/1013."
+
+#. In the event Licensee prepares a derivative work that is based on or
+   incorporates Python 1.6.1 or any part thereof, and wants to make the derivative
+   work available to others as provided herein, then Licensee hereby agrees to
+   include in any such work a brief summary of the changes made to Python 1.6.1.
+
+#. CNRI is making Python 1.6.1 available to Licensee on an "AS IS" basis.  CNRI
+   MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED.  BY WAY OF EXAMPLE,
+   BUT NOT LIMITATION, CNRI MAKES NO AND DISCLAIMS ANY REPRESENTATION OR WARRANTY
+   OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE OR THAT THE USE OF
+   PYTHON 1.6.1 WILL NOT INFRINGE ANY THIRD PARTY RIGHTS.
+
+#. CNRI SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON 1.6.1 FOR
+   ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS A RESULT OF
+   MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON 1.6.1, OR ANY DERIVATIVE
+   THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
+
+#. This License Agreement will automatically terminate upon a material breach of
+   its terms and conditions.
+
+#. This License Agreement shall be governed by the federal intellectual property
+   law of the United States, including without limitation the federal copyright
+   law, and, to the extent such U.S. federal law does not apply, by the law of the
+   Commonwealth of Virginia, excluding Virginia's conflict of law provisions.
+   Notwithstanding the foregoing, with regard to derivative works based on Python
+   1.6.1 that incorporate non-separable material that was previously distributed
+   under the GNU General Public License (GPL), the law of the Commonwealth of
+   Virginia shall govern this License Agreement only as to issues arising under or
+   with respect to Paragraphs 4, 5, and 7 of this License Agreement.  Nothing in
+   this License Agreement shall be deemed to create any relationship of agency,
+   partnership, or joint venture between CNRI and Licensee.  This License Agreement
+   does not grant permission to use CNRI trademarks or trade name in a trademark
+   sense to endorse or promote products or services of Licensee, or any third
+   party.
+
+#. By clicking on the "ACCEPT" button where indicated, or by copying, installing
+   or otherwise using Python 1.6.1, Licensee agrees to be bound by the terms and
+   conditions of this License Agreement.
+
+
+.. centered:: ACCEPT
+
+
+.. centered:: CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
+
+Copyright © 1991 - 1995, Stichting Mathematisch Centrum Amsterdam, The
+Netherlands.  All rights reserved.
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted, provided that
+the above copyright notice appear in all copies and that both that copyright
+notice and this permission notice appear in supporting documentation, and that
+the name of Stichting Mathematisch Centrum or CWI not be used in advertising or
+publicity pertaining to distribution of the software without specific, written
+prior permission.
+
+STICHTING MATHEMATISCH CENTRUM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
+EVENT SHALL STICHTING MATHEMATISCH CENTRUM BE LIABLE FOR ANY SPECIAL, INDIRECT
+OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
+SOFTWARE.
+
+
+Licenses and Acknowledgements for Incorporated Software
+=======================================================
+
+This section is an incomplete, but growing list of licenses and acknowledgements
+for third-party software incorporated in the Python distribution.
+
+
+Mersenne Twister
+----------------
+
+The :mod:`_random` module includes code based on a download from
+http://www.math.keio.ac.jp/ matumoto/MT2002/emt19937ar.html. The following are
+the verbatim comments from the original code::
+
+   A C-program for MT19937, with initialization improved 2002/1/26.
+   Coded by Takuji Nishimura and Makoto Matsumoto.
+
+   Before using, initialize the state by using init_genrand(seed)
+   or init_by_array(init_key, key_length).
+
+   Copyright (C) 1997 - 2002, Makoto Matsumoto and Takuji Nishimura,
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+
+    1. Redistributions of source code must retain the above copyright
+       notice, this list of conditions and the following disclaimer.
+
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+    3. The names of its contributors may not be used to endorse or promote
+       products derived from this software without specific prior written
+       permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+   A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+   PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+   LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+   Any feedback is very welcome.
+   http://www.math.keio.ac.jp/matumoto/emt.html
+   email: matumoto@math.keio.ac.jp
+
+
+Sockets
+-------
+
+The :mod:`socket` module uses the functions, :func:`getaddrinfo`, and
+:func:`getnameinfo`, which are coded in separate source files from the WIDE
+Project, http://www.wide.ad.jp/about/index.html. ::
+
+   Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project.
+   All rights reserved.
+
+   Redistribution and use in source and binary forms, with or without
+   modification, are permitted provided that the following conditions
+   are met:
+   1. Redistributions of source code must retain the above copyright
+      notice, this list of conditions and the following disclaimer.
+   2. Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+   3. Neither the name of the project nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+   THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND
+   GAI_ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+   IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+   ARE DISCLAIMED.  IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE
+   FOR GAI_ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+   OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+   HOWEVER CAUSED AND ON GAI_ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+   LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN GAI_ANY WAY
+   OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+   SUCH DAMAGE.
+
+
+Floating point exception control
+--------------------------------
+
+The source for the :mod:`fpectl` module includes the following notice::
+
+     ---------------------------------------------------------------------  
+    /                       Copyright (c) 1996.                           \ 
+   |          The Regents of the University of California.                 |
+   |                        All rights reserved.                           |
+   |                                                                       |
+   |   Permission to use, copy, modify, and distribute this software for   |
+   |   any purpose without fee is hereby granted, provided that this en-   |
+   |   tire notice is included in all copies of any software which is or   |
+   |   includes  a  copy  or  modification  of  this software and in all   |
+   |   copies of the supporting documentation for such software.           |
+   |                                                                       |
+   |   This  work was produced at the University of California, Lawrence   |
+   |   Livermore National Laboratory under  contract  no.  W-7405-ENG-48   |
+   |   between  the  U.S.  Department  of  Energy and The Regents of the   |
+   |   University of California for the operation of UC LLNL.              |
+   |                                                                       |
+   |                              DISCLAIMER                               |
+   |                                                                       |
+   |   This  software was prepared as an account of work sponsored by an   |
+   |   agency of the United States Government. Neither the United States   |
+   |   Government  nor the University of California nor any of their em-   |
+   |   ployees, makes any warranty, express or implied, or  assumes  any   |
+   |   liability  or  responsibility  for the accuracy, completeness, or   |
+   |   usefulness of any information,  apparatus,  product,  or  process   |
+   |   disclosed,   or  represents  that  its  use  would  not  infringe   |
+   |   privately-owned rights. Reference herein to any specific  commer-   |
+   |   cial  products,  process,  or  service  by trade name, trademark,   |
+   |   manufacturer, or otherwise, does not  necessarily  constitute  or   |
+   |   imply  its endorsement, recommendation, or favoring by the United   |
+   |   States Government or the University of California. The views  and   |
+   |   opinions  of authors expressed herein do not necessarily state or   |
+   |   reflect those of the United States Government or  the  University   |
+   |   of  California,  and shall not be used for advertising or product   |
+    \  endorsement purposes.                                              / 
+     ---------------------------------------------------------------------
+
+
+MD5 message digest algorithm
+----------------------------
+
+The source code for the :mod:`md5` module contains the following notice::
+
+     Copyright (C) 1999, 2002 Aladdin Enterprises.  All rights reserved.
+
+     This software is provided 'as-is', without any express or implied
+     warranty.  In no event will the authors be held liable for any damages
+     arising from the use of this software.
+
+     Permission is granted to anyone to use this software for any purpose,
+     including commercial applications, and to alter it and redistribute it
+     freely, subject to the following restrictions:
+
+     1. The origin of this software must not be misrepresented; you must not
+        claim that you wrote the original software. If you use this software
+        in a product, an acknowledgment in the product documentation would be
+        appreciated but is not required.
+     2. Altered source versions must be plainly marked as such, and must not be
+        misrepresented as being the original software.
+     3. This notice may not be removed or altered from any source distribution.
+
+     L. Peter Deutsch
+     ghost@aladdin.com
+
+     Independent implementation of MD5 (RFC 1321).
+
+     This code implements the MD5 Algorithm defined in RFC 1321, whose
+     text is available at
+   	http://www.ietf.org/rfc/rfc1321.txt
+     The code is derived from the text of the RFC, including the test suite
+     (section A.5) but excluding the rest of Appendix A.  It does not include
+     any code or documentation that is identified in the RFC as being
+     copyrighted.
+
+     The original and principal author of md5.h is L. Peter Deutsch
+     <ghost@aladdin.com>.  Other authors are noted in the change history
+     that follows (in reverse chronological order):
+
+     2002-04-13 lpd Removed support for non-ANSI compilers; removed
+   	references to Ghostscript; clarified derivation from RFC 1321;
+   	now handles byte order either statically or dynamically.
+     1999-11-04 lpd Edited comments slightly for automatic TOC extraction.
+     1999-10-18 lpd Fixed typo in header comment (ansi2knr rather than md5);
+   	added conditionalization for C++ compilation from Martin
+   	Purschke <purschke@bnl.gov>.
+     1999-05-03 lpd Original version.
+
+
+Asynchronous socket services
+----------------------------
+
+The :mod:`asynchat` and :mod:`asyncore` modules contain the following notice::
+
+   Copyright 1996 by Sam Rushing
+
+                           All Rights Reserved
+
+   Permission to use, copy, modify, and distribute this software and
+   its documentation for any purpose and without fee is hereby
+   granted, provided that the above copyright notice appear in all
+   copies and that both that copyright notice and this permission
+   notice appear in supporting documentation, and that the name of Sam
+   Rushing not be used in advertising or publicity pertaining to
+   distribution of the software without specific, written prior
+   permission.
+
+   SAM RUSHING DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+   INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
+   NO EVENT SHALL SAM RUSHING BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+   CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+   OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
+   NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+   CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Cookie management
+-----------------
+
+The :mod:`Cookie` module contains the following notice::
+
+   Copyright 2000 by Timothy O'Malley <timo@alum.mit.edu>
+
+                  All Rights Reserved
+
+   Permission to use, copy, modify, and distribute this software
+   and its documentation for any purpose and without fee is hereby
+   granted, provided that the above copyright notice appear in all
+   copies and that both that copyright notice and this permission
+   notice appear in supporting documentation, and that the name of
+   Timothy O'Malley  not be used in advertising or publicity
+   pertaining to distribution of the software without specific, written
+   prior permission.
+
+   Timothy O'Malley DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+   SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+   AND FITNESS, IN NO EVENT SHALL Timothy O'Malley BE LIABLE FOR
+   ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+   WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+   ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+   PERFORMANCE OF THIS SOFTWARE.
+
+
+Profiling
+---------
+
+The :mod:`profile` and :mod:`pstats` modules contain the following notice::
+
+   Copyright 1994, by InfoSeek Corporation, all rights reserved.
+   Written by James Roskind
+
+   Permission to use, copy, modify, and distribute this Python software
+   and its associated documentation for any purpose (subject to the
+   restriction in the following sentence) without fee is hereby granted,
+   provided that the above copyright notice appears in all copies, and
+   that both that copyright notice and this permission notice appear in
+   supporting documentation, and that the name of InfoSeek not be used in
+   advertising or publicity pertaining to distribution of the software
+   without specific, written prior permission.  This permission is
+   explicitly restricted to the copying and modification of the software
+   to remain in Python, compiled Python, or other languages (such as C)
+   wherein the modified or derived code is exclusively imported into a
+   Python module.
+
+   INFOSEEK CORPORATION DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+   SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+   FITNESS. IN NO EVENT SHALL INFOSEEK CORPORATION BE LIABLE FOR ANY
+   SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+   RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
+   CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
+   CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+
+Execution tracing
+-----------------
+
+The :mod:`trace` module contains the following notice::
+
+   portions copyright 2001, Autonomous Zones Industries, Inc., all rights...
+   err...  reserved and offered to the public under the terms of the
+   Python 2.2 license.
+   Author: Zooko O'Whielacronx
+   http://zooko.com/
+   mailto:zooko@zooko.com
+
+   Copyright 2000, Mojam Media, Inc., all rights reserved.
+   Author: Skip Montanaro
+
+   Copyright 1999, Bioreason, Inc., all rights reserved.
+   Author: Andrew Dalke
+
+   Copyright 1995-1997, Automatrix, Inc., all rights reserved.
+   Author: Skip Montanaro
+
+   Copyright 1991-1995, Stichting Mathematisch Centrum, all rights reserved.
+
+
+   Permission to use, copy, modify, and distribute this Python software and
+   its associated documentation for any purpose without fee is hereby
+   granted, provided that the above copyright notice appears in all copies,
+   and that both that copyright notice and this permission notice appear in
+   supporting documentation, and that the name of neither Automatrix,
+   Bioreason or Mojam Media be used in advertising or publicity pertaining to
+   distribution of the software without specific, written prior permission.
+
+
+UUencode and UUdecode functions
+-------------------------------
+
+The :mod:`uu` module contains the following notice::
+
+   Copyright 1994 by Lance Ellinghouse
+   Cathedral City, California Republic, United States of America.
+                          All Rights Reserved
+   Permission to use, copy, modify, and distribute this software and its
+   documentation for any purpose and without fee is hereby granted,
+   provided that the above copyright notice appear in all copies and that
+   both that copyright notice and this permission notice appear in
+   supporting documentation, and that the name of Lance Ellinghouse
+   not be used in advertising or publicity pertaining to distribution
+   of the software without specific, written prior permission.
+   LANCE ELLINGHOUSE DISCLAIMS ALL WARRANTIES WITH REGARD TO
+   THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+   FITNESS, IN NO EVENT SHALL LANCE ELLINGHOUSE CENTRUM BE LIABLE
+   FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+   OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+   Modified by Jack Jansen, CWI, July 1995:
+   - Use binascii module to do the actual line-by-line conversion
+     between ascii and binary. This results in a 1000-fold speedup. The C
+     version is still 5 times faster, though.
+   - Arguments more compliant with python standard
+
+
+XML Remote Procedure Calls
+--------------------------
+
+The :mod:`xmlrpclib` module contains the following notice::
+
+       The XML-RPC client interface is
+
+   Copyright (c) 1999-2002 by Secret Labs AB
+   Copyright (c) 1999-2002 by Fredrik Lundh
+
+   By obtaining, using, and/or copying this software and/or its
+   associated documentation, you agree that you have read, understood,
+   and will comply with the following terms and conditions:
+
+   Permission to use, copy, modify, and distribute this software and
+   its associated documentation for any purpose and without fee is
+   hereby granted, provided that the above copyright notice appears in
+   all copies, and that both that copyright notice and this permission
+   notice appear in supporting documentation, and that the name of
+   Secret Labs AB or the author not be used in advertising or publicity
+   pertaining to distribution of the software without specific, written
+   prior permission.
+
+   SECRET LABS AB AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD
+   TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANT-
+   ABILITY AND FITNESS.  IN NO EVENT SHALL SECRET LABS AB OR THE AUTHOR
+   BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY
+   DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
+   WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
+   ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
+   OF THIS SOFTWARE.
+