I'd like to add scipy.spatial.cKDTree for really fast kd-trees. Just used it for a geospatial data analysis application (find the closest N facilities to a give

I'd like to add scipy.spatial.cKDTree for really fast kd-trees. Just used it for a geospatial data analysis application (find the closest N facilities to a given point) and it blew the numpy and standard python alternatives out of the water in terms of speed.