new_contents: from pygraphc.clustering.ClusterDistance import *
  from pygraphc.clustering.ClusterEvaluation import *
  from pygraphc.clustering.ClusterUtility import *
  from pygraphc.clustering.ConnectedComponents import *
  from pygraphc.clustering.KCliquePercolation import *
  from pygraphc.clustering.MaxCliquesPercolation import *
  
  import pygraphc.clustering.ClusterDistance
  import pygraphc.clustering.ClusterEvaluation
  import pygraphc.clustering.ClusterUtility
  import pygraphc.clustering.ConnectedComponents
  import pygraphc.clustering.KCliquePercolation
  import pygraphc.clustering.MaxCliquesPercolation
  
subject: Add import for __init__.py in clustering module