Running Qiskit Circuit Composer locally on Jupyer Notebook

Question

I was wondering if I could use Qiskit locally on Jupyter Notebook and thus loaded my IBM-Q account via API token. I could construct circuits execute jobs but when I tried to use circuit composer, it returned nothing like the interactive circuit-composer as it does in IBM Quantum Lab. I ran the following code:

from qiskit import QuantumCircuit, execute, Aer, IBMQ 
from qiskit.compiler import transpile, assemble
from qiskit.tools.jupyter import *
from qiskit.visualization import *
from ibm_quantum_widgets import *
%matplotlib inline
from ibm_quantum_widgets import CircuitComposer
CircuitComposer()

It returned the following:

CircuitComposer(circuit=<qiskit.circuit.quantumcircuit.QuantumCircuit object at 0x15C528F8>)

Is there anything I am possibly missing out? p.s qiskit has the latest version installed.

Answer 1

Before running the local notebook, you need to enable the ibm_quantum_widgets extension. You can check if it is enable with jupyter nbextension list.

Otherwise, you can enable it, for example, like this:

jupyter nbextension enable --py --user ibm_quantum_widgets

Or by the jupyter_nbextensions_configurator server, typically in http://127.0.0.1:8888/nbextensions :