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setup: use old importlib_metadata version to fix kombu failing on python < 3.8 Many libraries use the importlib_metadata library as fallback when running on Python versions older than 3.8 . For example setuptools when easy_install is used for install the Kallithea console_scripts entrypoints in the bin folder. The dependencies on importlib_metadata were indirect and without constrains on version number. The problem is that Celery uses Kombu, which (on Python < 3.8) uses importlib_metadata in a way that is incompatible with importlib_metadata > 5. Most obvious, building docs failed as: Running Sphinx v5.1.1 Configuration error: There is a programmable error in your configuration file: Traceback (most recent call last): File ".../kallithea/venv/lib64/python3.7/site-packages/sphinx/config.py", line 347, in eval_config_file exec(code, namespace) File ".../kallithea/docs/conf.py", line 17, in <module> import kallithea File ".../kallithea/kallithea/__init__.py", line 45, in <module> CELERY_APP = celery.Celery() # needed at import time but is lazy and can be configured later File ".../kallithea/venv/lib64/python3.7/site-packages/celery/local.py", line 492, in __getattr__ [name]) File ".../kallithea/venv/lib64/python3.7/site-packages/celery/app/__init__.py", line 2, in <module> from celery import _state File ".../kallithea/venv/lib64/python3.7/site-packages/celery/_state.py", line 15, in <module> from celery.utils.threads import LocalStack File ".../kallithea/venv/lib64/python3.7/site-packages/celery/utils/__init__.py", line 16, in <module> from .nodenames import nodename, nodesplit, worker_direct File ".../kallithea/venv/lib64/python3.7/site-packages/celery/utils/nodenames.py", line 6, in <module> from kombu.entity import Exchange, Queue File ".../kallithea/venv/lib64/python3.7/site-packages/kombu/entity.py", line 7, in <module> from .serialization import prepare_accept_content File ".../kallithea/venv/lib64/python3.7/site-packages/kombu/serialization.py", line 440, in <module> for ep, args in entrypoints('kombu.serializers'): # pragma: no cover File ".../kallithea/venv/lib64/python3.7/site-packages/kombu/utils/compat.py", line 82, in entrypoints for ep in importlib_metadata.entry_points().get(namespace, []) AttributeError: 'EntryPoints' object has no attribute 'get' That made readthedocs builds fail, when it in the default web configuration used Python 3.7 . Fixed by introducing an explicit dependency on importlib_metadata < 5.
author Mads Kiilerich <mads@kiilerich.com>
date Tue, 13 Dec 2022 16:46:09 +0100
parents 006d68c4d7b9
children
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Kallithea License
=================

Kallithea as a whole is copyrighted by various authors and is licensed under
the terms of the GNU General Public License, version 3 (GPLv3), which is a
license published by the Free Software Foundation,
Inc. [A copy of GPLv3](/COPYING) is included herein.

Some individual files have copyright notices and those who offer changes to
those files should update the copyright notices in those specific files if
they so chose.

However, the definitive list of copyright holders for this project is kept in
[the about page template](kallithea/templates/about.html) so that it is
displayed appropriately when Kallithea is installed.  This is the most
important place to update copyright notices.

Third-Party Code Incorporated in Kallithea
==========================================

Various third-party code under GPLv3-compatible licenses is included as part
of Kallithea.


Alembic
-------

Kallithea incorporates an [Alembic](http://alembic.zzzcomputing.com/en/latest/)
"migration environment" in `kallithea/alembic`, portions of which is:

Copyright &copy; 2009-2016 by Michael Bayer.
Alembic is a trademark of Michael Bayer.

and licensed under the MIT-permissive license, which is
[included in this distribution](MIT-Permissive-License.txt).


Bootstrap
---------

Kallithea uses the web framework called
[Bootstrap](http://getbootstrap.com/), which is:

Copyright &copy; 2011-2016 Twitter, Inc.

and licensed under the MIT-permissive license, which is
[included in this distribution](MIT-Permissive-License.txt).

It is not distributed with Kallithea, but will be downloaded
using the ''kallithea-cli front-end-build'' command.



Codemirror
----------

Kallithea uses the Javascript system called
[Codemirror](http://codemirror.net/), version 4.7.0, which is primarily:

Copyright &copy; 2013-2014 by Marijn Haverbeke <marijnh@gmail.com>

and licensed under the MIT-permissive license, which is
[included in this distribution](MIT-Permissive-License.txt).

Additional files from upstream Codemirror are copyrighted by various authors
and licensed under other permissive licenses.

It is not distributed with Kallithea, but will be downloaded
using the ''kallithea-cli front-end-build'' command.



jQuery
------

Kallithea uses the Javascript system called
[jQuery](http://jquery.org/).

It is Copyright 2013 jQuery Foundation and other contributors http://jquery.com/ and is under an
[MIT-permissive license](MIT-Permissive-License.txt).

It is not distributed with Kallithea, but will be downloaded
using the ''kallithea-cli front-end-build'' command.



At.js
-----

Kallithea uses the Javascript system called
[At.js](http://ichord.github.com/At.js),
which can be found together with its Corresponding Source in
https://github.com/ichord/At.js at tag v1.5.4.

It is Copyright 2013 chord.luo@gmail.com and is under an
[MIT-permissive license](MIT-Permissive-License.txt).

It is not distributed with Kallithea, but will be downloaded
using the ''kallithea-cli front-end-build'' command.



Caret.js
--------

Kallithea uses the Javascript system called
[Caret.js](http://ichord.github.com/Caret.js/),
which can be found together with its Corresponding Source in
https://github.com/ichord/Caret.js at tag v0.3.1.

It is Copyright 2013 chord.luo@gmail.com and is under an
[MIT-permissive license](MIT-Permissive-License.txt).

It is not distributed with Kallithea, but will be downloaded
using the ''kallithea-cli front-end-build'' command.



DataTables
----------

Kallithea uses the Javascript system called
[DataTables](http://www.datatables.net/).

It is Copyright 2008-2015 SpryMedia Ltd. and is under an
[MIT-permissive license](MIT-Permissive-License.txt).

It is not distributed with Kallithea, but will be downloaded
using the ''kallithea-cli front-end-build'' command.



Mergely
-------

Kallithea incorporates some code from the Javascript system called
[Mergely](http://www.mergely.com/), version 3.3.9.
[Mergely's license](http://www.mergely.com/license.php), a
[copy of which is included in this repository](LICENSE-MERGELY.html),
is (GPL|LGPL|MPL).  Kallithea as GPLv3'd project chooses the GPL arm of that
tri-license.



Select2
-------

Kallithea uses the Javascript system called
[Select2](http://ivaynberg.github.io/select2/), which is:

Copyright 2012 Igor Vaynberg (and probably others)

and is licensed [under the following license](https://github.com/ivaynberg/select2/blob/master/LICENSE):

> This software is licensed under the Apache License, Version 2.0 (the
> "Apache License") or the GNU General Public License version 2 (the "GPL
> License"). You may choose either license to govern your use of this
> software only upon the condition that you accept all of the terms of either
> the Apache License or the GPL License.

A [copy of the Apache License 2.0](Apache-License-2.0.txt) is also included
in this distribution.

Kallithea will take the Apache license fork of the dual license, since
Kallithea is GPLv3'd.

It is not distributed with Kallithea, but will be downloaded
using the ''kallithea-cli front-end-build'' command.



Select2-Bootstrap-CSS
---------------------

Kallithea uses some CSS from a system called
[Select2-bootstrap-css](https://github.com/t0m/select2-bootstrap-css), which
is:

Copyright &copy; 2013 Tom Terrace (and likely others)

and licensed under the MIT-permissive license, which is
[included in this distribution](MIT-Permissive-License.txt).

It is not distributed with Kallithea, but will be downloaded
using the ''kallithea-cli front-end-build'' command.



Flot
----

Kallithea uses some parts of a Javascript system called
[Flot](http://www.flotcharts.org/), which is:

Copyright (c) 2007-2014 IOLA and Ole Laursen

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.

It is not distributed with Kallithea, but will be downloaded
using the ''kallithea-cli front-end-build'' command.



Icon fonts
----------

Kallithea incorporates subsets of both
[Font Awesome](http://fontawesome.io) and
[GitHub Octicons](https://octicons.github.com) for icons. Font Awesome is:

Copyright (c) 2016, Dave Gandy

Octicons is:

Copyright (c) 2012-2014 GitHub

These two sets are distributed under [SIL OFL 1.1](http://scripts.sil.org/OFL)
and have been combined into one font called "kallithea."


EOF