ZeroMQ in PyQt?

# Inspiration: http://zetcode.com/gui/pysidetutorial/widgets/
import sys, zmq, infoPack_pb2
from PyQt4 import QtGui, QtCore

class Example(QtGui.QWidget):

    def __init__(self):
        super(Example, self).__init__()
        self.initUI()

        # Set up zeromq send connection
        context = zmq.Context()
        self.publisher = context.socket(zmq.PUB)
        self.publisher.connect('tcp://localhost:2000')
        # Set up zeromq receiver connection
        self.receiver = context.socket(zmq.SUB)
        self.receiver.connect('tcp://localhost:4444')
        self.receiver.setsockopt(zmq.SUBSCRIBE, '')

        ## WHERE TO PUT THE ZEROMQ.POLLER() AND WHERE TO RECEIVE THE MESSAGE AND INVOKE THE currentSteerUpdate() METHOD?


    def initUI(self):

        steeringInstruction = QtGui.QSlider(QtCore.Qt.Horizontal, self)
        steeringInstruction.setTickPosition(QtGui.QSlider.TicksBothSides)
        steeringInstruction.setTickInterval(10)
        steeringInstruction.setFocusPolicy(QtCore.Qt.NoFocus)
        steeringInstruction.setRange(-100, 100)
        steeringInstruction.setGeometry(10, 40, 480, 30)
        steeringInstruction.valueChanged[int].connect(self.sendSteerInstruction)

        self.currentSteer = QtGui.QSlider(QtCore.Qt.Horizontal, self)
        self.currentSteer.setFocusPolicy(QtCore.Qt.NoFocus)
        self.currentSteer.setRange(-100, 100)
        self.currentSteer.setGeometry(10, 90, 480, 30)

        self.label = QtGui.QLabel('0', self)
        self.label.move(245, 5)
        self.label.setGeometry(245, 5, 30, 30)

        self.setGeometry(300, 300, 500, 150)
        self.setWindowTitle('Steering')
        self.show()

    def sendSteerInstruction(self, value):
        instructionObj = infoPack_pb2.steeringInstruction()
        instructionObj.steeringInstruction = value
        steeringPb = instructionObj.SerializeToString()
        self.publisher.send(steeringPb)
        self.label.setText(str(value))
        print(value)

    def currentSteerUpdate(self, message):
        currentSteerObj = infoPack_pb2.currentSteer()
        currentSteerObj.ParseFromString(message)
        self.currentSteer.setValue(currentSteerObj.currentSteer)

def main():
    app = QtGui.QApplication(sys.argv)
    ex = Example()
    sys.exit(app.exec_())

if __name__ == '__main__':
    main()