Zope Public License Version 2.1

A copyright notice accompanies this license document that identifies the
copyright holders. This license has been certified as open source. It has
also been designated as GPL compatible by the Free Software Foundation (FSF).
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

1. Redistributions in source code must retain the accompanying copyright
   notice, this list of conditions, and the following disclaimer.

2. Redistributions in binary form must reproduce the accompanying copyright
   notice, this list of conditions, and the following disclaimer in the
   documentation and/or other materials provided with the distribution.

3. Names of the copyright holders must not be used to endorse or promote
   products derived from this software without prior written permission
   from the copyright holders.

4. The right to distribute this software or to use it for any purpose does
   not give You the right to use Servicemarks (sm) or Trademarks (tm) of
   the copyright holders.

5. If You make a patent infringement claim against any entity (including a
   cross- claim or counterclaim in a lawsuit) alleging that the software
   licensed hereunder constitutes direct or contributory patent infringement,
   then any patent and any right-to-use licenses granted to You under this
   License for that software shall terminate as of the date such claim is made.

If any files are modified by You then you must cause the modified files to
carry prominent notices stating that you changed the files and the date of
any change.

Disclaimer

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS “AS IS” AND ANY
EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.