
# A. 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     Year        Owner       GPL-
# from                                compatible? (1)
#
# 0.9.0 thru 1.2              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        yes (2)
# 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       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       2002-2003   PSF         yes
# 2.3.3           2.3.2       2002-2003   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
# 2.5.2           2.5.1       2008        PSF         yes
# 2.5.3           2.5.2       2008        PSF         yes
# 2.6             2.5         2008        PSF         yes
# 2.6.1           2.6         2008        PSF         yes
# 2.6.2           2.6.1       2009        PSF         yes
# 2.6.3           2.6.2       2009        PSF         yes
# 2.6.4           2.6.3       2009        PSF         yes
# 2.6.5           2.6.4       2010        PSF         yes
# 2.7             2.6         2010        PSF         yes
#
# Footnotes:
#
# (1) 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.
#
# (2) According to Richard Stallman, 1.6.1 is not GPL-compatible,
# because its license has a choice of law clause.  According to
# CNRI, however, Stallman's lawyer has told CNRI's lawyer that 1.6.1
# is "not incompatible" with the GPL.
#
# Thanks to the many outside volunteers who have worked under Guido's
# direction to make these releases possible.
#
#
# B. TERMS AND CONDITIONS FOR ACCESSING OR OTHERWISE USING PYTHON
# ===============================================================
#
# PYTHON SOFTWARE FOUNDATION LICENSE VERSION 2
# --------------------------------------------
#
# 1. This LICENSE AGREEMENT is between the Python Software Foundation
# ("PSF"), and the Individual or Organization ("Licensee") accessing and
# otherwise using this software ("Python") in source or binary form and
# its associated documentation.
#
# 2. 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 alone or in any derivative version,
# provided, however, that PSF's License Agreement and PSF's notice of copyright,
# i.e., "Copyright (c) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
# 2011, 2012, 2013 Python Software Foundation; All Rights Reserved" are retained
# in Python alone or in any derivative version prepared by Licensee.
#
# 3. In the event Licensee prepares a derivative work that is based on
# or incorporates Python 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.
#
# 4. PSF is making Python 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 WILL NOT
# INFRINGE ANY THIRD PARTY RIGHTS.
#
# 5. PSF SHALL NOT BE LIABLE TO LICENSEE OR ANY OTHER USERS OF PYTHON
# FOR ANY INCIDENTAL, SPECIAL, OR CONSEQUENTIAL DAMAGES OR LOSS AS
# A RESULT OF MODIFYING, DISTRIBUTING, OR OTHERWISE USING PYTHON,
# OR ANY DERIVATIVE THEREOF, EVEN IF ADVISED OF THE POSSIBILITY THEREOF.
#
# 6. This License Agreement will automatically terminate upon a material
# breach of its terms and conditions.
#
# 7. 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.
#
# 8. By copying, installing or otherwise using Python, Licensee
# agrees to be bound by the terms and conditions of this License
# Agreement.
#
#
# BEOPEN.COM LICENSE AGREEMENT FOR PYTHON 2.0
# -------------------------------------------
#
# BEOPEN PYTHON OPEN SOURCE LICENSE AGREEMENT VERSION 1
#
# 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").
#
# 2. 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.
#
# 3. 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.
#
# 4. 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.
#
# 5. This License Agreement will automatically terminate upon a material
# breach of its terms and conditions.
#
# 6. 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.
#
# 7. By copying, installing or otherwise using the software, Licensee
# agrees to be bound by the terms and conditions of this License
# Agreement.
#
#
# CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
# ---------------------------------------
#
# 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.
#
# 2. 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 (c)
# 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".
#
# 3. 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.
#
# 4. 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.
#
# 5. 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.
#
# 6. This License Agreement will automatically terminate upon a material
# breach of its terms and conditions.
#
# 7. 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.
#
# 8. 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.
#
# ACCEPT
#
#
# CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
# --------------------------------------------------
#
# Copyright (c) 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.