Copyright for python-greenlet source package in Yangtze V1.0

Format: https://www.debian.org/doc/packaging-manuals/copyright-format/1.0/
Upstream-Name: greenlet
Source: https://github.com/python-greenlet/greenlet
Copyright: Alexey Borzenkov 

Files: *
Copyright: Armin Rigo ,
 Christian Tismer ,
 contributors
License: MIT
 Permission is hereby granted, free of charge, to any person obtaining a
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Files: appveyor/*
Copyright: (c) Olivier Grisel
 (c) Jonathan Helmus
 (c) Kyle Kastner
 (c) Alex Willmer
License: CC0-1.0-Universal

Files: slp_platformselect.h
 platform/*
Copyright: Copyright (C) 2004-2006 Bob Ippolito ,
 Copyright (C) 2005 Thiemo Seufer ,
 Copyright (C) 2002-2004 Hye-Shik Chang ,
 Copyright (C) 2002 Gerd Woetzel ,
 Copyright (C) 2002 Armin Rigo ,
 Copyright (C) 2002 Christian Tismer ,
 Copyright (C) 2002 Gustavo Niemeyer ,
 Copyright (C) 2002 Armin Rigo ,
 Copyright (C) 2002 Samual M. Rushing 
License: PSFL-2

Files: debian/*
Copyright: (c) 2012- Laszlo Boszormenyi (GCS) ,
 (c) 2010-2012 Örjan Persson 
License: GPL-3

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 On Debian systems, the complete text of the GNU General Public
 License version 3 can be found in `/usr/share/common-licenses/GPL-3'.

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