LICENSE.txt

OpenOPC for Python
Copyright (c) 2008-2012 by Barry Barnreiter (barry_b@users.sourceforge.net)
Copyright (c) 2014 by Anton D. Kachalov (mouse@yandex.ru)
Copyright (c) 2017 by Michal Kwiatkowski (michal@trivas.pl)
Copyright (c) 2020 by John Ladasky (john.ladasky@gmail.com)

This software is licensed under the terms of the GNU GPL v2 license plus
a special linking exception for portions of the package.

 		    GNU GENERAL PUBLIC LICENSE
		       Version 2, June 1991

 Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 Everyone is permitted to copy and distribute verbatim copies
 of this license document, but changing it is not allowed.

			    Preamble

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  The precise terms and conditions for copying, distribution and
modification follow.

		    GNU GENERAL PUBLIC LICENSE
   TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION

  0. This License applies to any program or other work which contains
a notice placed by the copyright holder saying it may be distributed
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  2. You may modify your copy or copies of the Program or any portion
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    c) If the modified program normally reads commands interactively
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These requirements apply to the modified work as a whole.  If
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This section is intended to make thoroughly clear what is believed to
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  8. If the distribution and/or use of the Program is restricted in
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may add an explicit geographical distribution limitation excluding
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  9. The Free Software Foundation may publish revised and/or new versions
of the General Public License from time to time.  Such new versions will
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Each version is given a distinguishing version number.  If the Program
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  10. If you wish to incorporate parts of the Program into other free
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			    NO WARRANTY

  11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW.  EXCEPT WHEN
OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  THE ENTIRE RISK AS
TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU.  SHOULD THE
PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
REPAIR OR CORRECTION.

  12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.

   13. Linking Exception (additional terms provided by OpenOPC project)
   
   The following linking exception applies only to the OpenOPC for Python
library module (OpenOPC.py).  It does not apply to any other files or
or programs included as part of the OpenOPC project or this installation.

   As a special exception, the copyright holders of this library give you
permission to link this library with independent modules to produce an
executable, regardless of the license terms of these independent modules,
and to copy and distribute the resulting executable under terms of your
choice, provided that you also meet, for each linked independent module,
the terms and conditions of the license of that module. An independent
module is a module which is not derived from or based on this library.
If you modify this library, you may extend this exception to your version
of the library, but you are not obliged to do so. If you do not wish to
do so, delete this exception statement from your version.

                     END OF TERMS AND CONDITIONS