finesse.graph.operator_graph.OperatorGraph.source_nodes¶
- OperatorGraph.source_nodes(self, ignore_self_loops=False)¶
 Nodes which have no input edges
- Parameters
 - ignore_self_loopsbool, optional
 When true any self loops at a node are not included in the determination if this node is a source
- Returns
 - nodesTuple
 node integer values