On Thu, Apr 30, 2009 at 9:17 AM, Michel <michel.vandenbe...@uhasselt.be> wrote: > > That's too bad. I knew GraphViz was open source. I didn't know > they chose a GPL incompatible license. > > Michel
It couldn't hurt for you to write to them and complain. William > On Apr 30, 6:06 pm, William Stein <wst...@gmail.com> wrote: >> On Thu, Apr 30, 2009 at 9:02 AM, Michel <michel.vandenbe...@uhasselt.be> >> wrote: >> >> > I wonder if GraphViz is part of sage. I thought it was >> > specially designed for visualizing graphs. >> >> 1) GraphViz doesn't work as a web application (via a web browser). >> >> 2) GraphViz cannot be included in Sage because it is licensed under a >> GPL-incompatible license. See >> >> http://www.graphviz.org/License.php >> >> http://gplv3.fsf.org/wiki/index.php/Common_Public_License,_version_1.0 >> >> "The Common Public License is incompatible with version 2 of the GPL >> because it has various specific requirements that are not in the GPL. >> The license is still incompatible with version 3 of the GPL because it >> contains a choice of law clause, which is expressly prohibited in >> section 7. " >> >> William > > > -- William Stein Associate Professor of Mathematics University of Washington http://wstein.org --~--~---------~--~----~------------~-------~--~----~ To post to this group, send email to sage-devel@googlegroups.com To unsubscribe from this group, send email to sage-devel-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URLs: http://www.sagemath.org -~----------~----~----~----~------~----~------~--~---
