[AstroPy] Co-ordinating Python astronomy libraries?
Thu Jul 8 12:55:35 CDT 2010
Just a quick question, how does the SciPy community feel about the LGPL license?
----- Original Message ----
> From: James Turner <firstname.lastname@example.org>
> To: Scott Ransom <email@example.com>
> Cc: firstname.lastname@example.org
> Sent: Thu, July 8, 2010 1:44:20 PM
> Subject: Re: [AstroPy] Co-ordinating Python astronomy libraries?
> I'm still catching up on reading this monster thread between doing
> vacation things (thanks for all the comments, everyone)... I'll
> quickly comment on this first.
> > The Fortran version of SLALIB that I wrapped was GPLd. You can get the
> > code here (SLALIB + wrappers and tests):
> > http://www.cv.nrao.edu/~sransom/pyslalib-1.0.tar.gz
> Yes, the latest SLALIB does have an open source licence, but it's GPL,
> which will put off a lot of the SciPy community (which may or may not
> matter in this case). Any application that links with SLALIB will also
> need to be GPL (at least its binaries) and the SciPy people are quite
> adamant about using BSD. I suspect that's largely because Enthought
> has contributed a lot to SciPy and their business model depends on
> selling the code in commercial apps. It's hard to argue with that,
> given how central the Enthought people have been in making SciPy and
> NumPy happen.
> There is, however, an older version of SLALIB distributed with IRAF,
> prior to JAC relicensing the library with their changes under the GPL.
> The licensing of that is not clearly stated though, as far as non-IRAF
> apps are concerned.
> Does anyone have comments on 1) whether people need the latest SLALIB
> (or is IRAF's version good enough?) and 2) whether we're concerned
> about licence-compatibility with SciPy for libraries that are so
> astronomy specific? For more general stuff (eg. deconvolution) I'd
> suggest that we should care about the licence, so we can share code
> with other disciplines and maintain goodwill in the SciPy community.
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