William, I have contacted all of the devs who are listed on the hg logs of the relevant files (interrupt.h/interrupt.c) and asked them if they would be OK re-licensing their contirbutions to these files under a Cython friendly license. All the responses I got were positive:
Martin Albrecht: "I'm happy to re-license my contribution." Gonzalo Tornaria: "I'm ok with relicensing" David Harvey: "Sure. Whatever license you normally use for Cython is fine." Craig Citro: "I'm happy to relicense any code that I wrote to anything everyone else is happy with." Joel Mohler: It doesn't look like touched the code, but did have a diff in which he moved the files. I have contacted him as well, but I am not sure this is needed. If you want to wait to hear from him that is fine. Are you OK with moving forward with the re-licensing of these two files? I am not sure what license would be best, but my guess is that Apache would work as Cython is released under this license. If you are OK with this plan, could you (or another sage dev) change the copyright and license of these two files in the main Sage repo? Also, it would probably be a good idea of list all of these contributors as copyright holders in these files, so this information doesn't get lost when the files are moved to Cython. Once the license has been changed I will begin to port them over to Cython and add Windows support. Cheers and thanks everyone! Brian On Wed, Mar 10, 2010 at 1:10 PM, Ondrej Certik <ond...@certik.cz> wrote: > On Wed, Mar 10, 2010 at 12:32 PM, Brian Granger <ellisonbg....@gmail.com> > wrote: > > Ondrej, > > > > On Wed, Mar 10, 2010 at 12:25 PM, Ondrej Certik <ond...@certik.cz> > wrote: > >> > >> On Wed, Mar 10, 2010 at 11:18 AM, Robert Bradshaw > >> <rober...@math.washington.edu> wrote: > >> > On Mar 10, 2010, at 11:01 AM, Brian Granger wrote: > >> > > >> >> Hello all, > >> >> > >> >> In the older Cython docs here: > >> >> > >> >> > >> >> > >> >> > http://modular.math.washington.edu/home/was/www/home/gfurnish/old/sage-3.0.6/doc/prog/node55.html > >> >> > >> >> The _sig_on and _sig_off macros are mentioned. But, when I try these > >> >> in > >> >> current Cython it fails. I found this > >> >> thread started by Ondrej a few years ago: > >> >> > >> >> http://codespeak.net/pipermail/cython-dev/2008-November/003081.html > >> >> > >> >> in which William brought up the possibility of moving the relevant > code > >> >> from Sage to Cython. William, > >> >> are you willing to relicense the interrupt.h and interrupt.c > functions > >> >> under LGPL or another license > >> >> that would allow their inclusion in Cython and other Cython using > >> >> projects? I would like to port these > >> >> to Cython and try to add Windows support. > >> > > >> > That would be great! > >> > > > >> > >> This would really be great! I didn't have time to finish this, but it > >> annoys me a lot in our solvers, that I can't kill it easily. > >> > > > > Yep, I have the same issue. > > > >> > >> The only problem in my case is that I am mixing Python and C++ too > >> much, I don't know what happens if you do > >> > >> _sig_on > >> # some C++ stuff, that calls Python.... > >> _sig_off > > > > Hopefully we will find out! Might be a bit messy though. > > essentially, 98% of the time is spent in pure C++ code, but then it > calls some Python at the end (for convert matrices to different > formats using scipy etc.) internally. So once it gets into python, > then ctrl-C works fine (raises an exception, that gets propagated into > a C++ exception, that gets converted back to a Python exception and > all is fine), but that 98% don't work with ctrl-C. So maybe this > _sig_off can somehow get called from my Python() class in C++, that > handles the interaction with Python. > > I've looked into the pynac and only expression.pyx contains > sig_off/sig_on, for example in the _derivative(). So either > _derivative will never invoke any python code, or it works. > > Ondrej > > -- > 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<sage-devel%2bunsubscr...@googlegroups.com> > For more options, visit this group at > http://groups.google.com/group/sage-devel > URL: http://www.sagemath.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 URL: http://www.sagemath.org
