Hello Alan,
On 30.10.06, Alan G Isaac wrote:
> On Sun, 29 Oct 2006, Christoph apparently wrote:
> > http://kib2.free.fr/geoPyX
> 2. Did you really think about the license before
> picking it? Most "academic" software, including yours, is
> IMO best served by the MIT license.
>
> If you are concerned that this is a "derivative
> work" well IANAL but I do not think so
> http://www4.law.cornell.edu/uscode/17/101.html (and
> such complicated considerations again highlight the
> clean simplicity of the MIT license)
IANAL neither, but just to make this point clear: If a module using PyX,
which is licensed under the GPL, is considered to be a derivative work,
then it can only be distributed and/or if it is published free of charge
under the terms of the GPL. [1]
Now the question whether a work is a derivative work or not can be a
rather subtle one. The most prominent example in the context of the GPL
is arguably the case of binary-only Linux kernel modules. The opinions
as to whether they are allowed according to the GPL or not strongly
differ.
So I really do not want to start a discussion on the question whether
modules using PyX are derivative works, but I can only recommend anybody
who wants to be on the safe side to license work using PyX under the
GPL. Alternatively, one can obtain PyX under a proprietary license from
the authors. [2]
Jörg
[1] Sect. 2 of the GNU General Public license.
[2] http://pyx.sourceforge.net/license.html
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