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# Licensing and credits

## Licence

The software is distributed under an MIT licence. The text is as follows (from `LICENSE.txt`):

    Copyright (c) 2013-2015 Python Charmers Pty Ltd, Australia

    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 restriction, including without limitation the rights
    to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
    copies of the Software, and to permit persons to whom the Software is
    furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in
    all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
    FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
    AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
    LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
    OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
    THE SOFTWARE.

## Sponsor

Python Charmers Pty Ltd, Australia, and Python Charmers Pte Ltd, Singapore. http://pythoncharmers.com

## Authors

Python-Future is written and maintained by Ed Schofield with the help of various contributors:

### Development Lead

- Ed Schofield <ed@pythoncharmers.com>

### Patches

- Jacob Beck
- Denis Cornehl
- Nicolas Delaby
- Corey Farwell
- Eric Firing
- Michael Joseph
- Waldemar Kornewald
- Alexey Kotlyarov
- Lion Krischer
- Marcin Kuzminski
- Joshua Landau
- German Larrain
- Chris Lasher
- Elliott Sales de Andrade
- Tim Shaffer
- Daniel Szoska
- Jeff Tratner
- Tim Tröndle
- Brad Walker
- Mystic-Mirage (GitHub)
- str4d (GitHub)
- 9seconds (GitHub)

### Suggestions and Feedback

- Chris Adams
- Martijn Faassen
- Lion Krischer
- Danielle Madeley
- wluebbe (GitHub)

## Other Credits

- The backported `super()` and `range()` functions are derived from Ryan Kelly’s `magicsuper` module and Dan Crosta’s `xrange` module.
- The `futurize` and `pasteurize` scripts use `lib2to3`, `lib3to2`, and parts of Armin Ronacher’s `python-modernize` code.
- The `python_2_unicode_compatible` decorator is from Django. The `implements_iterator` and `with_metaclass` decorators are from Jinja2.
- The `exec_` function and some others in `future.utils` are from the `six` module by Benjamin Peterson.
- The `raise_` and `raise_with_traceback` functions were contributed by Jeff Tratner.
- Documentation is generated with Sphinx using the `sphinx-bootstrap` theme.
- `past.translation` is inspired by and borrows some code from Sanjay Vinip’s `uprefix` module.

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