Zope Public License (ZPL) Version 2.0
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      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:
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          Redistributions in source code must retain the above copyright notice, this list of conditions,
             and the following disclaimer.
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          Redistributions in binary form must reproduce the above copyright notice, this list of
             conditions, and the following disclaimer in the documentation and/or other materials provided
             with the distribution.
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          The name Zope Corporation (tm) must not be used to endorse or promote products derived from this
             software without prior written permission from Zope Corporation.
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          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 Zope Corporation. Use of them is covered in a
             separate agreement (see http://www.zope.com/Marks).
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          If any files are modified, you must cause the modified files to carry prominent notices stating
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      Disclaimer
      THIS SOFTWARE IS PROVIDED BY ZOPE CORPORATION ``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 ZOPE CORPORATION OR ITS CONTRIBUTORS BE LIABLE FOR ANY
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         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.

      This software consists of contributions made by Zope Corporation and many individuals on behalf of Zope
         Corporation. Specific attributions are listed in the accompanying credits file.