new_contents: #!/usr/bin/env python
  import vtk
  
  def main():
      randomGraphSource = vtk.vtkRandomGraphSource()
      randomGraphSource.SetNumberOfVertices(5)
      randomGraphSource.SetNumberOfEdges(4)
      randomGraphSource.SetSeed(0) # This ensures repeatable results for testing. Turn this off for real use.
      randomGraphSource.Update()
      
      graphLayoutView = vtk.vtkGraphLayoutView()
      graphLayoutView.AddRepresentationFromInput(randomGraphSource.GetOutput())
      graphLayoutView.ResetCamera()
      graphLayoutView.Render()
      graphLayoutView.GetInteractor().Start()
  
  if __name__ == '__main__':
      main()
  
subject: Create RandomGraphSource.py