License
- License Text

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 sticksaround, the conditions are not modified and the disclaimer is present.Furthermore, you must not use the names of the authors to promote derivativesof the software without written consent.

License Text

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

Some rights reserved.

Redistribution and use in source and binary forms, with or withoutmodification, are permitted provided that the following conditions aremet:

Redistributions of source code must retain the above copyrightnotice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the abovecopyright notice, this list of conditions and the followingdisclaimer in the documentation and/or other materials providedwith the distribution.
The names of the contributors may not be used to endorse orpromote products derived from this software without specificprior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOTLIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FORA PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHTOWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOTLIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANYTHEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USEOF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.