click license
Copyright (C) 2017, Armin Ronacher.

Source Code: http://click.pocoo.org
License URL: http://click.pocoo.org/license/

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                                  License
                              ---------------

Click is licensed under a three-clause BSD License. It basically means: do
whatever you want with it as long as the copyright in Click sticks around, the
conditions are not modified and the disclaimer is present. Furthermore, you
must not use the names of the authors to promote derivatives of the software
without written consent.

                                License Text
                            ---------------------

Copyright (c) 2014 by Armin Ronacher.

Click uses parts of optparse written by Gregory P. Ward and maintained by the
Python software foundation. This is limited to code in the parser.py module:

Copyright (c) 2001-2006 Gregory P. Ward. All rights reserved.
Copyright (c) 2002-2006 Python Software Foundation. All rights reserved.

Some rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:

     - Redistributions of source code must retain the above copyright notice,
       this list of conditions and the following disclaimer.

     - 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.

     - The names of the contributors may not be used to endorse or promote
       products derived from this software without specific prior written
       permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND
ANY EXPRESS 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 OWNER OR CONTRIBUTORS 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.
