Dynamic signal handling and button creating in PyQt4

# Functioning example of how to dynamically generate buttons (or any element)
# in PyQt4 and capture their emitted signals
# Full code: www.github.com/mathomastech/HBS_Communicator
# File of interest, handler.py

import functools
from PyQt4 import QtGui, QtCore
from gui import GUI
from communicator import Communicator

class Handler(QtGui.QMainWindow):
    def __init__(self):
        super(Handler,self).__init__()
    self.generate_channels()

    def generate_channels(self):
            for i in range(0,len(Communicator.CHANNEL_LIST)):
                GUI.generate_channel_info(Communicator.CHANNEL_LIST[i][0],
                                        Communicator.CHANNEL_LIST[i][1],
                                        Communicator.CHANNEL_LIST[i][2],
                                        Communicator.CHANNEL_LIST[i][3]
                                     )


            for i in range(0,len(GUI.CHANNELS)):
                self.button = QtGui.QPushButton(GUI.CHANNELS[i][GUI.CHANNEL_NAME])
                self.button.clicked.connect(functools.partial(self.channel_clicked,GUI.CHANNELS[i][GUI.CHANNEL_NAME]))
                GUI.CHANNELS[i][GUI.GUI_ELEMENT] = self.button
                self.button.setFlat(True)
                self.button.setSizePolicy(sizePolicy)
                self.button.setAutoDefault(True)
                if GUI.CHANNELS[i][GUI.CHANNEL_GROUP] == "command":
                    self.com.commandLayout.addWidget(self.button)
                elif GUI.CHANNELS[i][GUI.CHANNEL_GROUP] == "general":
                    self.com.generalLayout.addWidget(self.button)

    def channel_clicked(self,channel,flag):
        Communicator.switch_channel(channel)