Thank you all.
Ondrej,
I tried again and I think the structure can be kept as is,
only that I the mutable default set([]) should be avoided since
it is assigned one per class.
So in the definition of an instance I needed to replace
V=Vertex('V')
with
V=Vertex('V',set([]))
On Mar 21, 8:35 pm, Neal Becker <[email protected]> wrote:
> There is also igraph with a python interface.
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