On Mon, Jul 22, 2019 at 2:45 PM John Cremona <john.crem...@gmail.com> wrote: > > > > On Mon, 22 Jul 2019 at 12:47, Dima Pasechnik <dimp...@gmail.com> wrote: >> >> On Mon, Jul 22, 2019 at 11:45 AM John Cremona <john.crem...@gmail.com> wrote: >> > >> > >> > >> > >> > On Sun, 21 Jul 2019 at 16:06, 'Julien Puydt' via sage-devel >> > <sage-devel@googlegroups.com> wrote: >> >> >> >> Le 21/07/2019 à 13:19, John Cremona a écrit : >> >> > >> >> > On Sat, 20 Jul 2019 at 21:08, 'Julien Puydt' via sage-devel >> >> > <sage-devel@googlegroups.com <mailto:sage-devel@googlegroups.com>> >> >> > wrote: >> >> > >> >> > Le 19/07/2019 à 16:41, John Cremona a écrit : >> >> > >> >> > > Not written by me, just used by me to update Sage's optional >> >> > package. >> >> > > William would remember who wrote it. >> >> > >> >> > I crossed the build/pkgs/elliptic_curves and >> >> > src/sage/databases/cremona.py files and obtained the following build >> >> > script. >> >> > >> >> > >> >> > I'm a bit annoyed because the elliptic_curve pkg ships a 470M >> >> > cremona.db, and I get a 479M cremona.db ; but perhaps it's because I >> >> > pack everything (no bound on the genus : everything in the files!)? >> >> > >> >> > "genus" --> "conductor". This would be explained (I think) by the fact >> >> > that the shipped spkg goes up to conductor 400k while ecdata on github >> >> > now goes up to 410k. That's all. I will soon have finished to 500k and >> >> > then the spkg will presumably be around 500M. >> >> >> >> Yes, conductor. >> >> >> >> Could you add a nice LICENSE file to clarify things? I think it's public >> >> domain since it's a list of mathematical objects... but I'd rather have >> >> a nice file by the author to tell that :-P >> > >> > >> > Certainly. I think that CC0 is most appropriate. The significant part of >> > the repo is the data, not the code. (The most important code used to >> > compute this data is in another repository, eclib; here there are just >> > some utility scripts). But github does not list any CC licenses in its >> > "add a license" menu. Any advice? >> >> Nothing prevents one to add LICENSE.md (or LICENSE) with any content >> one sees fit. > > > OK. fair enough. > >> >> Did you consider FDL, by the way? >> > > No. That is for documentation, while this is data. How about https://opensource.org/licenses/Artistic-2.0 ? This is what e.g. SmallGrp GAP package is under. https://gap-packages.github.io/smallgrp/README.html (and the authors of the latter thought long and hard about the question)
Basically, the rationale is that you'd like your data to be an autoritative source, you'd rather not let someone to create a derivative for purpose of self-promotion. You probably don't want a company with the name started with M to offer a copy of your data without any reference to the original source, and I gather that's what CC0 would allow... HTH Dima > >> >> > >> >> >> >> >> >> Thanks, >> >> >> >> JP >> >> >> >> -- >> >> You received this message because you are subscribed to the Google Groups >> >> "sage-devel" group. >> >> To unsubscribe from this group and stop receiving emails from it, send an >> >> email to sage-devel+unsubscr...@googlegroups.com. >> >> To view this discussion on the web visit >> >> https://groups.google.com/d/msgid/sage-devel/63694530-e253-7c92-f0f5-2d2838d2e666%40laposte.net. >> > >> > -- >> > You received this message because you are subscribed to the Google Groups >> > "sage-devel" group. >> > To unsubscribe from this group and stop receiving emails from it, send an >> > email to sage-devel+unsubscr...@googlegroups.com. >> > To view this discussion on the web visit >> > https://groups.google.com/d/msgid/sage-devel/CAD0p0K6nSnYHm7qTNKqnmfuX-4dy16BSj981o0M4ki9SL-p%2Btw%40mail.gmail.com. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "sage-devel" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to sage-devel+unsubscr...@googlegroups.com. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/sage-devel/CAAWYfq2J3v_fsZ-E5nYuV6M6YbRA2aAy%2BEyimJTXMZHZQUwDbQ%40mail.gmail.com. > > -- > You received this message because you are subscribed to the Google Groups > "sage-devel" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sage-devel+unsubscr...@googlegroups.com. > To view this discussion on the web visit > https://groups.google.com/d/msgid/sage-devel/CAD0p0K5DNY8F5VrVTUrz%2B9FoN6HbAyTEXG-%3DDPwkK%3D%3DQD2nEig%40mail.gmail.com. -- You received this message because you are subscribed to the Google Groups "sage-devel" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-devel+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sage-devel/CAAWYfq3Bwav3oEKVz2OEAJxE1TpweKMDFx23Y%2Buq02YZ_G7EmA%40mail.gmail.com.
