[igraph] on VertexClustering

[Claudio Martella]

Hello,

I'm trying to get some graph clustering done, so I create a graph from
my graphml and try to run VertexClustering.

The code is very simple:

g = igraph.Graph.Read_GraphML("myfile.xml")
c = igraph.VertexClustering(g)

but it throws:

TypeError: sequence or iterable expected

any idea about what's wrong? the constructor prototype talks about
graph as first/necessary parameter.

Thanks!

-- 
   Claudio Martella
  address@hidden