[SciPy-user] Re[2]: ANN: Veusz 0.5 - a scientific plotting package

Robert Kern rkern at ucsd.edu
Mon Apr 18 23:53:45 CDT 2005

Robert Kern wrote:
> Gerard Vermeulen wrote:

>> If you do not use commercial licensed releases of PyQt and Qt, you
>> are using the GPL versions.  This implies that you have to release
>> your software based on PyQt also under the GPL license.
>> The modified BSD being compatible with the GPL does not mean that
>> you can release GPL derived works under the BSD license.
> The work as a whole must be distributed under the terms of the GPL. 
> However, Jeremy's code can be under whatever license he wishes as long 
> as it is compatible with the GPL. If he chose the modified BSD license, 
> one could take pieces of that code, inasmuch as they are separable from 
> PyQt, and incorporate them into matplotlib. Just because the 
> BSD-licensed code is combined with GPL-licensed code doesn't mean that 
> the BSD-licensed code is not BSD-licensed.
 > Or if he feels like avoiding this silliness, Jeremy could, if he
 > wanted to, just separately license the bits that other people want to
 > use in BSDish-licensed, non-PyQt projects.

C.f. http://www.opensource.org/licenses/gpl-license.php
Section 2

"""These requirements apply to the modified work as a whole. If 
identifiable sections of that work are not derived from the Program, and 
can be reasonably considered independent and separate works in 
themselves, then this License, and its terms, do not apply to those 
sections when you distribute them as separate works. But when you 
distribute the same sections as part of a whole which is a work based on 
the Program, the distribution of the whole must be on the terms of this 
License, whose permissions for other licensees extend to the entire 
whole, and thus to each and every part regardless of who wrote it.

Robert Kern
rkern at ucsd.edu

"In the fields of hell where the grass grows high
  Are the graves of dreams allowed to die."
   -- Richard Harter

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