# DAGNode¶

class DAGNode(type=None, op=None, name=None, qargs=None, cargs=None, wire=None, nid=- 1)[source]

Bases: object

Object to represent the information at a node in the DAGCircuit.

It is used as the return value from *_nodes() functions and can be supplied to functions that take a node.

Create a node

Methods

 semantic_eq Check if DAG nodes are considered equivalent, e.g., as a node_match for nx.is_isomorphic.

Attributes

cargs
condition

Returns the condition of the node.op

name

Returns the Instruction name corresponding to the op for this node

op

Returns the Instruction object corresponding to the op for the node, else None

qargs

Returns list of Qubit, else an empty list.

sort_key
type
wire

Returns the Bit object, else None.