wxPython :: Problem with threads

[Blujacker]

Hello
I am trying to work with threads and wxPython, but i have one problem.
In my application i open main Window and i then i am trying to open another window in thread, but the second window does not work. Take look on my code, please:

#-*- coding: utf-8 -*-
import re, time
import thread,threading, socket,wx
DEFAULT_HOST='localhost'
DEFAULT_PORT=1991
class ReceiveEmail:
    def __init__(self):
        while 1:
            self.send_warning("some warning")
            time.sleep(15)  
    def send_warning(self,what):
        s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        s.connect((DEFAULT_HOST, DEFAULT_PORT))
        s.send(what)
        s.close()
class Server(threading.Thread):
    def __init__(self,prijimaci_funkce):
        self.prijimaci_funkce=prijimaci_funkce
        self.S = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
        self.S.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
        self.S.bind((DEFAULT_HOST,DEFAULT_PORT))
        self.S.listen(5)
        threading.Thread.__init__(self)
        self.start()
        #Start thread:
        thread.start_new_thread(ReceiveEmail, ())
    def run(self):
        while True:
            try:
                newS, address = self.S.accept()
                receivedData = newS.recv(1024)
                self.prijimaci_funkce(receivedData)
                newS.close()
            finally: pass
        self.S.close()
class EmailWarningWindow:
    def __init__(self):
        self.okno=wx.Frame(None,title="Second Window",id=1987,size=(490,340),style =wx.SIMPLE_BORDER|wx.STAY_ON_TOP)
        wx.StaticText(self.okno, label="some text")
        wx.Yield()
        self.okno.SetAutoLayout(True)
        self.okno.Show(True)
class App:
    def __init__(self):
        okno = wx.App(0)
        self.okno=wx.Frame(None,title="First window",id=-1,size=(490,340))
        Server(accept)
        self.okno.Show(True)
        okno.MainLoop()
def accept(data):
    #Run the second window; 
    EmailWarningWindow()
if __name__ == "__main__":
    App()

The first window (called "first window") does work normall, but the second window (called "second window") does not work:(
I tryied to solve it for several hours, but i didnt solve it; please help me

Thanks