title: How do I get the vertices on the shortest path using igraph?
body: <p>I'm using <code>igraph</code> to generate a matrix of shortest path distances between pairs of vertices but I can't figure out how to return the vertices. So far I have:</p>
  
  <pre><code>path_length_matrix = ig_graph.shortest_paths_dijkstra(None,None,"distance", "ALL")
  </code></pre>
  
  <p>I'm looking for a function which returns a matrix of paths like the matrix of distances but I can't see anything in the <a href="http://packages.python.org/python-igraph/igraph.Graph-class.html" rel="noreferrer">igraph documentation</a> which shows how to get the paths.</p>