On Thu, Aug 13, 2009 at 4:55 PM, Robert Kern<robert.k...@gmail.com> wrote: > On 2009-08-13 16:25 PM, Kurt Smith wrote: >> On Thu, Aug 13, 2009 at 1:42 PM, Kurt Smith<kwmsm...@gmail.com> wrote: >>> On Thu, Aug 13, 2009 at 12:33 PM, Dag Sverre >>> Seljebotn<da...@student.matnat.uio.no> wrote: >>>> Robert Bradshaw wrote: >> <snip> >>>>>> >>>>>> ~150K compressed. >>>>> >>>>> That seems acceptable to me. Given that you've volunteered to >>>>> maintain it, and numerics certainly is an important audience of >>>>> Cython, it seems to make sense to bundle it. >>>> >>> >>> Good -- I sent an email to Pearu Peterson on the f2py-dev list to get >>> his official approval, to check on licensing compatibilites, and to >>> sort out the nuts and bolts of versioning fparser once it stabilizes, >>> etc. >> >> I have Pearu's permission to include fparser in Cython. Fparser is >> BSD licensed, and I'll be reading through it to see what requirements >> there are. If the following site is authoritative: >> >> http://www.dwheeler.com/essays/floss-license-slide.html >> >> then it looks like we won't have licensing issues. > > It would be worth asking Pearu to explicitly give his code to you under the > Apache license. He doesn't have to relicense fparser in general, but just give > it to you under that license so you can correctly claim that all of Cython is > Apache licensed. > > It's an annoying process for substantially similar licenses, but it will make > a > few things easier down the line. In particular, if Cython is still serious > about > inclusion into the standard library, this is a necessity since the PSF will > accept Apache-licensed code and not BSD-licensed code.
I'm just curious. Why does the PSF reject BSD-licensed code, but accept Apache-licensed code, given that the Apache license is vastly more restrictive than BSD? I can understand this, but find it surprising. The Apache license isn't GPL v2 compatible according to the FSF by the way, but it is GPL v3 compatible (http://www.apache.org/licenses/GPL-compatibility.html). This is relevant to another thread on sage-devel right now, because we claim jsmath is the only Apache licensed code in Sage. In fact Cython is another Apache-licensed component of Sage. In our COPYING.txt file we write: cython GPL (pyrex has no restrictions) which is clearly very wrong. -- William > I believe this was one of > the original reasons for using the Apache license for Cython to begin with. > > -- > Robert Kern > > "I have come to believe that the whole world is an enigma, a harmless enigma > that is made terrible by our own mad attempt to interpret it as though it had > an underlying truth." > -- Umberto Eco > > _______________________________________________ > Cython-dev mailing list > cython-...@codespeak.net > http://codespeak.net/mailman/listinfo/cython-dev > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~---------~--~----~------------~-------~--~----~ To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
