.. _license:
======================
Licenses and Copyright
======================
Licenses
========
IPython source code and examples are licensed under the terms of the
new or revised BSD license, as follows::
Copyright (c) 2011, IPython Development Team
All 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.
Neither the name of the IPython Development Team nor the names of its
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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,
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IPython documentation, examples and other materials are licensed under
the terms of the Attribution 4.0 International (CC BY 4.0) license, as
follows::
Creative Commons Attribution 4.0 International Public License
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Section 1 -- Definitions.
a. Adapted Material means material subject to Copyright and Similar
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c. The disclaimer of warranties and limitation of liability provided
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Section 6 -- Term and Termination.
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b. Where Your right to use the Licensed Material has terminated under
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For the avoidance of doubt, this Section 6(b) does not affect any
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c. For the avoidance of doubt, the Licensor may also offer the
Licensed Material under separate terms or conditions or stop
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b. Any arrangements, understandings, or agreements regarding the
Licensed Material not stated herein are separate from and
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Section 8 -- Interpretation.
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shall not be interpreted to, reduce, limit, restrict, or impose
conditions on any use of the Licensed Material that could lawfully
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b. To the extent possible, if any provision of this Public License is
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c. No term or condition of this Public License will be waived and no
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d. Nothing in this Public License constitutes or may be interpreted
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that apply to the Licensor or You, including from the legal
processes of any jurisdiction or authority.
About the IPython Development Team
==================================
Fernando Perez began IPython in 2001 based on code from Janko Hauser
<jhauser-AT-zscout.de> and Nathaniel Gray <n8gray-AT-caltech.edu>. Fernando is still
the project lead.
The IPython Development Team is the set of all contributors to the IPython
project. This includes all of the IPython subprojects. Here is a list of the
currently active contributors:
* Matthieu Brucher
* Ondrej Certik
* Laurent Dufrechou
* Robert Kern
* Thomas Kluyver
* Brian E. Granger
* Paul Ivanov
* Evan Patterson
* Fernando Perez (project leader)
* Benjamin Ragan-Kelley
* Ville M. Vainio
* Gael Varoququx
* Stefan van der Walt
* Barry Wark
If your name is missing, please add it.
Our Copyright Policy
====================
IPython uses a shared copyright model. Each contributor maintains copyright
over their contributions to IPython. But, it is important to note that these
contributions are typically only changes (diffs/commits) to the repositories.
Thus, the IPython source code, in its entirety is not the copyright of any
single person or institution. Instead, it is the collective copyright of the
entire IPython Development Team. If individual contributors want to maintain a
record of what changes/contributions they have specific copyright on, they
should indicate their copyright in the commit message of the change, when they
commit the change to one of the IPython repositories.
Any new code contributed to IPython must be licensed under the BSD license or
a similar (MIT) open source license.
Miscellaneous
=============
Some files (DPyGetOpt.py, for example) may be licensed under different
conditions. Ultimately each file indicates clearly the conditions under which
its author/authors have decided to publish the code.
Versions of IPython up to and including 0.6.3 were released under the GNU
Lesser General Public License (LGPL), available at
http://www.gnu.org/copyleft/lesser.html.
Online versions of the Creative Commons licenses can be found at:
* http://creativecommons.org/licenses/by/4.0/
* http://creativecommons.org/licenses/by/4.0/legalcode.txt