[sage-support] Re: Licensing and copyright of sage contributions

2009-04-13 Thread David Joyner
On Mon, Apr 13, 2009 at 8:05 PM, Rolando 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 stat

[sage-support] Re: Licensing and copyright of sage contributions

2009-04-13 Thread Rolando
Could you please explain why the license should be GPL and the code should be copyrighted? On Apr 14, 9:45 am, mabshoff wrote: > On Apr 13, 4:40 pm, Rolando wrote: > > Hi, > > > Is it possible to make a contribution of code to Sage which has no > > license and no copyright? > > No, it should be

[sage-support] Re: Licensing and copyright of sage contributions

2009-04-13 Thread mabshoff
On Apr 13, 4:40 pm, Rolando 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 Willi