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---
title: pauli_measurement
description: API reference for qiskit.aqua.operators.legacy.pauli_measurement
in_page_toc_min_heading_level: 1
python_api_type: function
python_api_name: qiskit.aqua.operators.legacy.pauli_measurement
---
# qiskit.aqua.operators.legacy.pauli\_measurement
<Function id="qiskit.aqua.operators.legacy.pauli_measurement" isDedicatedPage={true} github="https://github.com/qiskit-community/qiskit-aqua/tree/stable/0.9/qiskit/aqua/operators/legacy/common.py" signature="pauli_measurement(circuit, pauli, qr, cr, barrier=False)">
Add the proper post-rotation gate on the circuit.
**Parameters**
* **circuit** ([*QuantumCircuit*](qiskit.circuit.QuantumCircuit "qiskit.circuit.QuantumCircuit")) the circuit to be modified.
* **pauli** ([*Pauli*](qiskit.quantum_info.Pauli "qiskit.quantum_info.Pauli")) the pauli will be added.
* **qr** ([*QuantumRegister*](qiskit.circuit.QuantumRegister "qiskit.circuit.QuantumRegister")) the quantum register associated with the circuit.
* **cr** ([*ClassicalRegister*](qiskit.circuit.ClassicalRegister "qiskit.circuit.ClassicalRegister")) the classical register associated with the circuit.
* **barrier** (*bool, optional*) whether or not add barrier before measurement.
**Returns**
the original circuit object with post-rotation gate
**Return type**
[QuantumCircuit](qiskit.circuit.QuantumCircuit "qiskit.circuit.QuantumCircuit")
</Function>