On May 13, 8:19 am, bearophileh...@lycos.com wrote: > godshorse, you may use the "shortestPaths" method of this graph class > of mine:http://sourceforge.net/projects/pynetwork/ > > (It uses the same Dijkstra code by Eppstein). > (Once you have all distances from a node to the other ones, it's not > too much difficult to find the tree you talk about). > > Also see the Minimum spanning > tree:http://en.wikipedia.org/wiki/Minimum_spanning_tree > > Bye, > bearophile
Let me add a caution to what bearophile says here- a minimum spanning tree minimizes the weight of the *whole tree*, not the individual paths in that tree, which seems to be what you're going after. Those can be pretty different things. Geremy Condra -- http://mail.python.org/mailman/listinfo/python-list