choosealicense.com/licenses/artistic.txt

---
layout: license
title: Artistic License 2.0
permalink: /licenses/artistic/

source: http://opensource.org/licenses/Artistic-2.0

description: A license that’s heavily favored by the Perl community.

how: Create a text file (typically named LICENSE or LICENSE.txt) in the root of your source code and copy the text of the license into the file. Replace <<year>> with the current year and <<copyright holders>> with the name (or names) of the copyright holders.

required:
  - include-copyright
  - document-changes
  - disclose-source
permitted:
  - commercial-use
  - modifications
  - distribution
  - sublicense
  - private-use
forbidden:
  - no-liability
  - trademark-use
---

Artistic License 2.0
Copyright (c) 2000-2006, The Perl Foundation.

Everyone is permitted to copy and distribute verbatim copies of this license
document, but changing it is not allowed.

Preamble
This license establishes the terms under which a given free software Package may
be copied, modified, distributed, and/or redistributed. The intent is that the
Copyright Holder maintains some artistic control over the development of that
Package while still keeping the Package available as open source and free
software.

You are always permitted to make arrangements wholly outside of this license
directly with the Copyright Holder of a given Package. If the terms of this
license do not permit the full use that you propose to make of the Package, you
should contact the Copyright Holder and seek a different licensing arrangement.

Definitions
"Copyright Holder" means the individual(s) or organization(s) named in the
copyright notice for the entire Package.

"Contributor" means any party that has contributed code or other material to the
Package, in accordance with the Copyright Holder's procedures.

"You" and "your" means any person who would like to copy, distribute, or modify
the Package.

"Package" means the collection of files distributed by the Copyright Holder, and
derivatives of that collection and/or of those files. A given Package may
consist of either the Standard Version, or a Modified Version.

"Distribute" means providing a copy of the Package or making it accessible to
anyone else, or in the case of a company or organization, to others outside of
your company or organization.

"Distributor Fee" means any fee that you charge for Distributing this Package or
providing support for this Package to another party. It does not mean licensing
fees.

"Standard Version" refers to the Package if it has not been modified, or has
been modified only in ways explicitly requested by the Copyright Holder.

"Modified Version" means the Package, if it has been changed, and such changes
were not explicitly requested by the Copyright Holder.

"Original License" means this Artistic License as Distributed with the Standard
Version of the Package, in its current version or as it may be modified by The
Perl Foundation in the future.

"Source" form means the source code, documentation source, and configuration
files for the Package.

"Compiled" form means the compiled bytecode, object code, binary, or any other
form resulting from mechanical transformation or translation of the Source form.

Permission for Use and Modification Without Distribution
(1) You are permitted to use the Standard Version and create and use Modified
Versions for any purpose without restriction, provided that you do not
Distribute the Modified Version.

Permissions for Redistribution of the Standard Version
(2) You may Distribute verbatim copies of the Source form of the Standard
Version of this Package in any medium without restriction, either gratis or for
a Distributor Fee, provided that you duplicate all of the original copyright
notices and associated disclaimers. At your discretion, such verbatim copies may
or may not include a Compiled form of the Package.

(3) You may apply any bug fixes, portability changes, and other modifications
made available from the Copyright Holder. The resulting Package will still be
considered the Standard Version, and as such will be subject to the Original
License.

Distribution of Modified Versions of the Package as Source
(4) You may Distribute your Modified Version as Source (either gratis or for a
Distributor Fee, and with or without a Compiled form of the Modified Version)
provided that you clearly document how it differs from the Standard Version,
including, but not limited to, documenting any non-standard features,
executables, or modules, and provided that you do at least ONE of the following:

(a) make the Modified Version available to the Copyright Holder of the Standard
Version, under the Original License, so that the Copyright Holder may include
your modifications in the Standard Version.
(b) ensure that installation of your Modified Version does not prevent the user
installing or running the Standard Version. In addition, the Modified Version
must bear a name that is different from the name of the Standard Version.
(c) allow anyone who receives a copy of the Modified Version to make the Source
form of the Modified Version available to others under
(i) the Original License or
(ii) a license that permits the licensee to freely copy, modify and redistribute
the Modified Version using the same licensing terms that apply to the copy that
the licensee received, and requires that the Source form of the Modified
Version, and of any works derived from it, be made freely available in that
license fees are prohibited but Distributor Fees are allowed.

Distribution of Compiled Forms of the Standard Version or Modified Versions
without the Source
(5) You may Distribute Compiled forms of the Standard Version without the
Source, provided that you include complete instructions on how to get the Source
of the Standard Version. Such instructions must be valid at the time of your
distribution. If these instructions, at any time while you are carrying out such
distribution, become invalid, you must provide new instructions on demand or
cease further distribution. If you provide valid instructions or cease
distribution within thirty days after you become aware that the instructions are
invalid, then you do not forfeit any of your rights under this license.

(6) You may Distribute a Modified Version in Compiled form without the Source,
provided that you comply with Section 4 with respect to the Source of the
Modified Version.

Aggregating or Linking the Package
(7) You may aggregate the Package (either the Standard Version or Modified
Version) with other packages and Distribute the resulting aggregation provided
that you do not charge a licensing fee for the Package. Distributor Fees are
permitted, and licensing fees for other components in the aggregation are
permitted. The terms of this license apply to the use and Distribution of the
Standard or Modified Versions as included in the aggregation.

(8) You are permitted to link Modified and Standard Versions with other works,
to embed the Package in a larger work of your own, or to build stand-alone
binary or bytecode versions of applications that include the Package, and
Distribute the result without restriction, provided the result does not expose a
direct interface to the Package.

Items That are Not Considered Part of a Modified Version

(9) Works (including, but not limited to, modules and scripts) that merely
extend or make use of the Package, do not, by themselves, cause the Package to
be a Modified Version. In addition, such works are not considered parts of the
Package itself, and are not subject to the terms of this license.

General Provisions

(10) Any use, modification, and distribution of the Standard or Modified
Versions is governed by this Artistic License. By using, modifying or
distributing the Package, you accept this license. Do not use, modify, or
distribute the Package, if you do not accept this license.

(11) If your Modified Version has been derived from a Modified Version made by
someone other than you, you are nevertheless required to ensure that your
Modified Version complies with the requirements of this license.

(12) This license does not grant you the right to use any trademark, service
mark, tradename, or logo of the Copyright Holder.

(13) This license includes the non-exclusive, worldwide, free-of-charge patent
license to make, have made, use, offer to sell, sell, import and otherwise
transfer the Package with respect to any patent claims licensable by the
Copyright Holder that are necessarily infringed by the Package. If you institute
patent litigation (including a cross-claim or counterclaim) against any party
alleging that the Package constitutes direct or contributory patent
infringement, then this Artistic License to you shall terminate on the date that
such litigation is filed.

(14) Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT HOLDER AND
CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES. THE IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR
NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT PERMITTED BY YOUR LOCAL LAW.
UNLESS REQUIRED BY LAW, NO COPYRIGHT HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY
OUT OF THE USE OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.