I have been searching for some libraries for python to deal with some fundamental geometrical operations like region intersections / line-shape intersections, the only one that comes close is shapely but I couldn’t get it to work probably because its not pure python (i.e. require some C dll which the maya python didn’t like). Another interesting one, CGAL that can be used to deal with pointset creating delaunay, voronoi, convex hull and alpha shape, its python binding is not compiled for 2.6 so I couldn’t get that to work either. (qHull doesn’t do alpha shape to my understanding).