def main(script, n='11', *args):
# create n Vertices
n = int(n)
labels = string.ascii_lowercase + string.ascii_uppercase
vs = [Vertex(c) for c in labels[:n]]
# create a graph and a layout
g = Graph(vs)
#g.add_all_edges()
g.regularize(4)
layout = CircleLayout(g)
# draw the graph
gw = GraphWorld()
gw.show_graph(g, layout)
gw.mainloop()
