On Tue, Aug 26, 2008 at 12:09 AM, William Stein <[EMAIL PROTECTED]> wrote:
>> I don't know if for this particular project it's a >> realistic/valid/interesting solution or not, but how about using LGPL >> as a middle solution? > > This is not an option because Pynac derives from Ginac and Ginac > is GPL'd: http://www.ginac.de/ So for this project I have absolutely > no choice in the matter. Ah, I see. Thanks for the clarification. BTW, numpy/scipy/mpl/ipython pretty much have to stay away from GPL code because it would force them to relicense completely (something impossible to do in practice even if someone wanted to, given the long history and large developer pool). But there's a fair amount of use of LGPL code in all those projects and related. for example Mayavi and all the Enthought GUI stuff is based on WXPython, which is itself LGPL. Since that code is used as a library and not to copy/paste, the LGPL is not really an issue at all in such cases. In any case, I'm really happy to see better symbolics coming. This will be a huge step forward, and I really hope that you guys all figure out a technical way for sympy to continue, perhaps with an optional pynac backend (I'd have no problem using it myself in research, like I use tons of GPL code elsewhere, I just don't copy any of it in ipython/numpy). Cheers, f --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
