66 lines
2.2 KiB
Plaintext
66 lines
2.2 KiB
Plaintext
---
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title: DAGOpNode
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description: API reference for qiskit.dagcircuit.DAGOpNode
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in_page_toc_min_heading_level: 1
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python_api_type: class
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python_api_name: qiskit.dagcircuit.DAGOpNode
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---
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# DAGOpNode
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<Class id="qiskit.dagcircuit.DAGOpNode" isDedicatedPage={true} github="https://github.com/qiskit/qiskit/tree/stable/0.23/qiskit/dagcircuit/dagnode.py" signature="DAGOpNode(op, qargs=(), cargs=())" modifiers="class">
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Bases: [`qiskit.dagcircuit.dagnode.DAGNode`](qiskit.dagcircuit.DAGNode "qiskit.dagcircuit.dagnode.DAGNode")
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Object to represent an Instruction at a node in the DAGCircuit.
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Create an Instruction node
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## Methods
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### semantic\_eq
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<Function id="qiskit.dagcircuit.DAGOpNode.semantic_eq" signature="DAGOpNode.semantic_eq(node1, node2, bit_indices1=None, bit_indices2=None)" modifiers="static">
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Check if DAG nodes are considered equivalent, e.g., as a node\_match for nx.is\_isomorphic.
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**Parameters**
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* **node1** ([*DAGOpNode*](qiskit.dagcircuit.DAGOpNode "qiskit.dagcircuit.DAGOpNode")*,* [*DAGInNode*](qiskit.dagcircuit.DAGInNode "qiskit.dagcircuit.DAGInNode")*,* [*DAGOutNode*](qiskit.dagcircuit.DAGOutNode "qiskit.dagcircuit.DAGOutNode")) – A node to compare.
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* **node2** ([*DAGOpNode*](qiskit.dagcircuit.DAGOpNode "qiskit.dagcircuit.DAGOpNode")*,* [*DAGInNode*](qiskit.dagcircuit.DAGInNode "qiskit.dagcircuit.DAGInNode")*,* [*DAGOutNode*](qiskit.dagcircuit.DAGOutNode "qiskit.dagcircuit.DAGOutNode")) – The other node to compare.
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* **bit\_indices1** (*dict*) – Dictionary mapping Bit instances to their index within the circuit containing node1
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* **bit\_indices2** (*dict*) – Dictionary mapping Bit instances to their index within the circuit containing node2
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**Returns**
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If node1 == node2
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**Return type**
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Bool
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</Function>
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## Attributes
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### op
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<Attribute id="qiskit.dagcircuit.DAGOpNode.op" />
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### qargs
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<Attribute id="qiskit.dagcircuit.DAGOpNode.qargs" />
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### cargs
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<Attribute id="qiskit.dagcircuit.DAGOpNode.cargs" />
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### sort\_key
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<Attribute id="qiskit.dagcircuit.DAGOpNode.sort_key" />
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### name
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<Attribute id="qiskit.dagcircuit.DAGOpNode.name">
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Returns the Instruction name corresponding to the op for this node
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</Attribute>
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</Class>
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