def str_lsnode(self, astr_path=""):
            """
            Print/return the set of nodes branching from current node as string
            """
            self.sCore.reset()
            str_cwd       = self.cwd()
            if len(astr_path): self.cdnode(astr_path)
            for node in self.snode_current.d_nodes.keys():
                self.sCore.write('%s\n' % node)
            str_ls = self.sCore.strget()
            if len(astr_path): self.cdnode(str_cwd)
            return str_ls