propagating variables through classes

import BaseHTTPServer, CGIHTTPServer, time, os, sys
from PyQt4 import QtCore
from PyQt4.QtCore import *
from PyQt4.QtGui import *
from PyQt4.QtWebKit import QWebView
from PyQt4.QtNetwork import *

class server:

def initServer(self):
	server = BaseHTTPServer.HTTPServer
	handler = CGIHTTPServer.CGIHTTPRequestHandler

server_address = ("",0)
	httpd = server(server_address, handler)
	return httpd

class wrapper(QMainWindow):

def __init__(self):
    self.cs = ccpemServer().initServer()
    self.port = self.cs.server_port

super(wrapper, self).__init__()
    self.createActions()
    self.createToolbar()

def createToolbar(self):
    self.toolbar = self.addToolBar("MainMenu")
    self.toolbar.addAction(self.web)

def createActions(self):
    self.web = QAction("web", self, triggered=self.webwidget)
    
  def webwidget(self):
    self.webw = webwidget(self.port)
    self.setCentralWidget(self.webw)

class webwidget(QWidget):

def __init__(self,port):
    super(webwidget, self).__init__()

titleLabel = QLabel("<strong>Welcome to my web widget!</strong>")
    
    self.b = Browser(port)
    self.grid = QGridLayout()
    self.grid.addWidget(titleLabel,0,0)
    self.grid.addWidget(self.b,0,1)
    self.setLayout(self.grid)

class Browser(QWebView):

def __init__(self,port):
    QWebView.__init__(self)
    self.load(QUrl('http://localhost:'+port+'/test.htm'))
    self.loadFinished.connect(self._result_available)

def _result_available(self, ok):
    frame = self.page().mainFrame()
    
if __name__ == '__main__':
    app = QApplication(sys.argv)
    gui = wrapper()
    gui.show()
    app.exec_()

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