---
title: pauli_basis (v2.0)
description: API reference for qiskit.quantum_info.pauli_basis in qiskit v2.0
source: https://quantum.cloud.ibm.com/docs/en/api/qiskit/2.0/qiskit.quantum_info.pauli_basis
---

# qiskit.quantum\_info.pauli\_basis

`qiskit.quantum_info.pauli_basis(num_qubits, weight=False)`

[GitHub](https://github.com/Qiskit/qiskit/tree/stable/2.0/qiskit/quantum_info/operators/symplectic/pauli_utils.py#L21-L40)

Return the ordered PauliList for the n-qubit Pauli basis.

**Parameters**

- **num\_qubits** ([*int*](https://docs.python.org/3/library/functions.html#int)) – number of qubits
- **weight** ([*bool*](https://docs.python.org/3/library/functions.html#bool)) – if True optionally return the basis sorted by Pauli weight rather than lexicographic order (Default: False)

**Returns**

the Paulis for the basis

**Return type**

[PauliList](/docs/api/qiskit/2.0/qiskit.quantum_info.PauliList "qiskit.quantum_info.PauliList")