This change you describe sound like one that has been made for performance reasons. But since it obviously breaks tracebacks I think it should be either undone or made such that tracebacks work. There should at least be made a trac ticket for this issue.
-- 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
