I wanted to add that the Gurobi Optimizer is a high-end LP and MIP solver whose command-line interface is through Python (Sage actually provided inspiration for our interface). I'm guessing it would be fairly easy to call Gurobi from Sage, although I haven't tried it myself. Gurobi is free for academics (http://gurobi.com/html/ academic.html).
Ed -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org