def _formatted_cluster_iterator(self):
    'Iterates over the clusters and formats them into a string to be\n        presented in the summary.'
    if self._graph.is_named():
        names = self._graph.vs['name']
        for cluster in self:
            (yield ', '.join((str(names[member]) for member in cluster)))
    else:
        for cluster in self:
            (yield ', '.join((str(member) for member in cluster)))
Iterates over the clusters and formats them into a string to be
presented in the summary.
def _formatted_cluster_iterator(self):
    'Iterates over the clusters and formats them into a string to be\n        presented in the summary.'
    if self._graph.is_named():
        names = self._graph.vs['name']
        for cluster in self:
            (yield ', '.join((str(names[member]) for member in cluster)))
    else:
        for cluster in self:
            (yield ', '.join((str(member) for member in cluster)))