qiskit.dagcircuit.DAGCircuit.op_nodes

DAGCircuit.op_nodes(op=None, include_directives=True)

Get the list of “op” nodes in the dag.

Parameters

• op (Type) – qiskit.circuit.Instruction subclass op nodes to return. If None, return all op nodes.

• include_directives (bool) – include barrier, snapshot etc.

Returns

the list of node ids containing the given op.

Return type

list[DAGNode]