Multi-threading in PyQt 4

# This is an example of how to properly do multi-threading in PyQt 4.
# This is a stripped down version of the code, in order to emphasize
# the multi-threading proccess. To view the full code, go to
# www.github.com/mathomastech/HBS_Communicator
# The files of interest in handler.py and worker.py

#worker.py
from PyQt4 import QtCore
from communicator import Communicator

class Worker(QtCore.QThread):
    update_online_list = QtCore.pyqtSignal()

    def __init__(self, parent=None):
        QtCore.QThread.__init__(self)

    def run (self):
        # Do a bunch of long running logic here
    # Emit signal to main thread
    self.update_online_list.emit()
        return

# handler.py
from PyQt4 import QtGui, QtCore
from communicator import Communicator
from worker import Worker

class Handler(QtGui.QMainWindow):

    def __init__(self):
        super(Handler,self).__init__()

        # Threading
        QtCore.QThread.currentThread().setObjectName("MAIN")
        self.thread = QtCore.QThread()
        self.thread.name = "auto_refresh"

        self.worker = Worker()
        self.worker.moveToThread(self.thread)
        self.worker.start()
        self.worker.update_online_list.connect(self.online_list)