from ibm_quantum_widgets import CircuitComposer
from qiskit import QuantumRegister, ClassicalRegister, QuantumCircuit
from numpy import pi

qreg_q = QuantumRegister(3, 'q')
creg_c = ClassicalRegister(3, 'c')
circuit = QuantumCircuit(qreg_q, creg_c)

circuit.x(qreg_q[0])
circuit.barrier(qreg_q[0])
circuit.x(qreg_q[1])
circuit.barrier(qreg_q[1])
circuit.ccx(qreg_q[0], qreg_q[1], qreg_q[2])
circuit.x(qreg_q[2])
circuit.measure(qreg_q[2], creg_c[2])


editor = CircuitComposer(circuit=circuit)
editor

CircuitComposer(circuit=<qiskit.circuit.quantumcircuit.QuantumCircuit object at 0x7f62e35c58a0>)