PySpiro is a wrapper for libspiro, a C library for Raph Levien's "Spiro"
curve design tool.
PySpiro is copyright © 2015, 2016 Timothy Pederick. It is based on libspiro, which is copyright © 2007 Raph Levien.
PySpiro 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 3 of the License, or (at your option) any later version.
See the file COPYING for the full licence terms.