MIT License

Copyright (c) 2026 Louie Slocombe

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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Third-party code
----------------

The MIT licence above covers this distribution with one exception, set out
second below.

reactiontools/tools_geodesic.py is derived from geodesic-interpolate
(https://github.com/virtualzx-nad/geodesic-interpolate), which is distributed
under the MIT licence set out above:

Copyright (c) 2024 Xiaolei Zhu

The header of that file names the fork and commit it was taken from.

reactiontools/tools_sella.py is derived from Sella
(https://github.com/zadorlab/sella); the header of that file names the fork and
commit it was taken from. It is NOT covered by the MIT licence above. It is
licensed under the GNU Lesser General Public License, version 3 or later, as
the code it derives from is:

Copyright 2019 National Technology & Engineering Solutions of Sandia, LLC
(NTESS). Under the terms of Contract DE-NA0003525 with NTESS, the U.S.
Government retains certain rights in this software.

The full text of that licence is in LICENSE.LGPL, together with the GNU
General Public License version 3 it incorporates by reference, in LICENSE.GPL.
You may modify reactiontools/tools_sella.py and relink it against the rest of
this package under the terms of the LGPL; the header of that file records the
changes already made to it relative to upstream Sella.
