Copyright for python-typing-extensions source package in Yangtze V1.0

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Files:     CHANGELOG.md
           PKG-INFO
           README.md
           pyproject.toml
           src/test_typing_extensions.py
           src/typing_extensions.py
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# License file: LICENSE
 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
     2.1.2           2.1.1       2002        PSF         yes
     2.1.3           2.1.2       2002        PSF         yes
     2.2 and above   2.1.1       2001-now    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, 2014 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.