On 22.12.2010 12:02, ext Algis Kabaila wrote:
LGPL is somewhat
unsuitable license for examples because you'd be unable to
directly copy code from them when writing non-(L)GPL
software.
But the examples are based on PySide which is under LGPL, yet
that does not restrict the authors of the examples as far as
licensing is concerned. Where is the real difference?
Hi,
the difference here is in HOW you use it: according to LGPL (and here
I'm paraphrasing, and this is not an implied license or legal advice,
etc etc), you can use PySide as a separate library in your programs but
if you distribute modified versions of PySide, you must also provide the
source code. However, in the case of the examples, you're most likely
interested in copying blocks of code from them, and that triggers the
viral effect in LGPL. So, the cases indeed are quite different.
My problem with BSD is that I can not find "the BSD" - only a
series of "BSD like" licences.
This is very true, and I don't like BSD too much because of that either.
My personal preference would be the MIT license, but then again, it
probably pays off to align PySide licensing to Qt wherever possible.
This is the boilerplate used in native Qt examples, and the one I'd
recommend to be used in any new PySide examples as well (sans the Nokia
copyright assignment if the code is not written by the core dev team
members, of course):
/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation ([email protected])
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** You may use this file under the terms of the BSD license as follows:
**
** "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 Nokia Corporation and its Subsidiary(-ies) nor
** the names of its contributors may be used to endorse or promote
** products derived from this 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, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
** $QT_END_LICENSE$
**
****************************************************************************/
Cheers,
ma.
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