[sage-support] Re: Licensing and copyright of sage contributions
On Apr 13, 4:40 pm, Rolando san...@gmail.com wrote: Hi, Is it possible to make a contribution of code to Sage which has no license and no copyright? No, it should be licensed in a GPL V2+ compatible way. The Sage Programming Guide seems to suggest that copyright should be given to yourself and William Stein. No, you should retain copyright yourself, there is no reason to give copyright to William. Cheers, Michael --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Licensing and copyright of sage contributions
Could you please explain why the license should be GPL and the code should be copyrighted? On Apr 14, 9:45 am, mabshoff michael.absh...@mathematik.uni- dortmund.de wrote: On Apr 13, 4:40 pm, Rolando san...@gmail.com wrote: Hi, Is it possible to make a contribution of code to Sage which has no license and no copyright? No, it should be licensed in a GPL V2+ compatible way. The Sage Programming Guide seems to suggest that copyright should be given to yourself and William Stein. No, you should retain copyright yourself, there is no reason to give copyright to William. Cheers, Michael --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
[sage-support] Re: Licensing and copyright of sage contributions
On Mon, Apr 13, 2009 at 8:05 PM, Rolando san...@gmail.com wrote: Could you please explain why the license should be GPL and the code should be copyrighted? Any tangable creative work is copyrighted by its author in all countries which obey the Berne convention. In the US you can revoke copyright by stating you are putting the work in the public domain. This notion does not exist in some other countries, so it is best to just keep the copyright and then release your contribution under a license consistent with the other contributions. Some people prefer to use the modified BSD license for their code, which is fine too. This allows us to redistribute your code and modify it (for example, in case you quit the project and bugs are found down the road). On Apr 14, 9:45 am, mabshoff michael.absh...@mathematik.uni- dortmund.de wrote: On Apr 13, 4:40 pm, Rolando san...@gmail.com wrote: Hi, Is it possible to make a contribution of code to Sage which has no license and no copyright? No, it should be licensed in a GPL V2+ compatible way. The Sage Programming Guide seems to suggest that copyright should be given to yourself and William Stein. No, you should retain copyright yourself, there is no reason to give copyright to William. Cheers, Michael --~--~-~--~~~---~--~~ To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URLs: http://www.sagemath.org -~--~~~~--~~--~--~---
