PyOpenCL is licensed to you under the MIT/X Consortium license:

Copyright (c) 2009-13 Andreas Klöckner and Contributors.

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
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copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following
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The above copyright notice and this permission notice shall be
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PyOpenCL includes derivatives of parts of the `Thrust
<https://github.com/NVIDIA/thrust>`_ computing package (in particular the scan
implementation). These parts are licensed as follows:

    Copyright 2008-2011 NVIDIA Corporation

    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at

        <https://www.apache.org/licenses/LICENSE-2.0>

    Unless required by applicable law or agreed to in writing, software
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    See the License for the specific language governing permissions and
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.. note::

    If you use Apache-licensed parts, be aware that these may be incompatible
    with software licensed exclusively under GPL2.  (Most software is licensed
    as GPL2 or later, in which case this is not an issue.)

PyOpenCL includes parts of the Random123 suite of random number generators:

    Copyright 2010-2012, D. E. Shaw Research.
    All rights reserved.

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