cut_nodes returns nodes while are not cutting nodes

[GoogleCodeExporter]

What steps will reproduce the problem?

a = digraph()
a.add_nodes([1,2,3,4,5])
a.add_edge((1,2))
a.add_edge((2,3))
a.add_edge((2,4))
a.add_edge((3,5))
a.add_edge((4,5))
cut_nodes(a)

What is the expected output? What do you see instead?

expected: [2]
actual result: [2, 3]

What version of the product are you using? On what operating system?

1.7.0
Ubuntu Linux 10.10

Please provide any additional information below.

Original issue reported on code.google.com by emanuelez@gmail.com on 21 Mar 2011 at 12:23

[GoogleCodeExporter]

cut_nodes() expects graphs and hypergraphs, not digraphs.

Original comment by pmatiello on 4 Apr 2011 at 2:49

• Changed state: Invalid