Copyright © 2001-2009 Gerard Vermeulen
Copyright © 2000 Mark Colclough
PyQwt 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.
PyQwt 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 PyQwt; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
In addition, as a special exception, Gerard Vermeulen gives permission to link PyQwt dynamically with non-free versions of Qt and PyQt, and to distribute PyQwt in this form, provided that equally powerful versions of Qt and PyQt have been released under the terms of the GNU General Public License.
If PyQwt is dynamically linked with non-free versions of Qt and PyQt, PyQwt becomes a free plug-in for a non-free program.