hierarchy.py 文件源码

def _remove_cycles(self):
        """
        Really hacky way to remove cycles in hierarchies (wtf).
        """

        G = self.make_graph()
        cycles = list(networkx.simple_cycles(G))
        if not cycles:
            return False
        else:
            cycles[0][0].looped = True
            cycles[0][0].sources[:] = [ ]
            return True