Format: http://www.debian.org/doc/packaging-manuals/copyright-format/1.0/

Files: *
Copyright: 2012-2018 Trevor L Davis 
License: GPL-2+

File: exec/example.R
Copyright: 2008 Allen Day
           2012-2013 Trevor L Davis 
License: GPL-2+

File: R/argparse.R 
Copyright: 1990-2009 Python Software Foundation
           2012-2020 Trevor L Davis 
License:  GPL-2+ and Python-2.7.3
Comment: The FSF considers recent Python licenses (post Python version 2.1.1) to be
  GPL-compatible (http://www.gnu.org/licenses/license-list.html#Python).  Note
  that the "Python License" the FSF has on their website
  (http://directory.fsf.org/wiki?title=License:Python2.0.1) is the full Python
  license stack which includes the historical modified CNRI and BEOPEN licenses
  and not merely the PSF License Agreement at the top.  In 2001 ago the FSF
  negotiated with CNRI to change the wording of an earlier Python license
  (https://www.gnu.org/licenses/license-list.html#PythonOld, 
  http://directory.fsf.org/wiki/License:Python1.6b1) because it had an overly
  strong "governed in Virginia" clause but later Python license stacks have a version
  of the CNRI license with a weakened enough clause to satisfy the FSF
  lawyers as being GPL-compatible.

File: tests/test-argparse.R
Copyright: 1990-2009 Python Software Foundation
           2012-2018 Trevor L Davis 
License:  GPL-2+ and Python-2.7.3
Comment: The FSF considers recent Python licenses (post Python version 2.1.1) to be
  GPL-compatible (http://www.gnu.org/licenses/license-list.html#Python).  Note
  that the "Python License" the FSF has on their website
  (http://directory.fsf.org/wiki?title=License:Python2.0.1) is the full Python
  license stack which includes the historical modified CNRI and BEOPEN licenses
  and not merely the PSF License Agreement at the top.  In 2001 ago the FSF
  negotiated with CNRI to change the wording of an earlier Python license
  (https://www.gnu.org/licenses/license-list.html#PythonOld, 
  http://directory.fsf.org/wiki/License:Python1.6b1) because it had an overly
  strong "governed in Virginia" clause but later Python license stacks have a version
  of the CNRI license with a weakened enough clause to satisfy the FSF
  lawyers as being GPL-compatible.

License: GPL-2+
  This program is free software; you can redistribute it and/or modify it under
  the terms of the GNU General Public License as published by the Free Software
  Foundation; either version 2 of the License, or (at your option) any later
  version.
  .
  This program is distributed in the hope that it will be useful, but WITHOUT
  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
  details.
  .
  You should have received a copy of the GNU General Public License along with
  this package; if not, write to the Free Software Foundation, Inc., 51
  Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  .
  The full text of the GNU General Public License version 2 can be found in the
  file COPYING (source) or `R_HOME/share/licenses/GPL-2' (installed).

License: Python-2.7.3
  PSF LICENSE AGREEMENT FOR PYTHON 2.7.3
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  CNRI LICENSE AGREEMENT FOR PYTHON 1.6.1
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  3. In the event Licensee prepares a derivative work that is based on or
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  CWI LICENSE AGREEMENT FOR PYTHON 0.9.0 THROUGH 1.2
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