Clicar em um Menu e abrir outro frame. abrir uma (tela)

Thank you Claudia, I'll do it the way you said, but I have another problem. if I want to open another frame by clicking on the (ex: network) or scan. How should I do it ?? Why do I want to make it open another screen if I click on SubMenus



import wx

class Tela(wx.Frame):

    def __init__(self, *args, **kwa):
        super(Tela, self).__init__(*args, **kwa)
        self.Centre()
        self.SetTitle("Halzon")
        self.SetSize((800,500))
        self.FUN()
        self.FUN1()

    def FUN(self):
        menubar = wx.MenuBar()
        menu = wx.Menu()

        menubar.Append(menu, "NetWork")

        menu.Append(wx.NewId(), "Scan")
        self.SetMenuBar(menubar)

def main():
    app = wx.App()
    frame = Tela(None)
    frame.Show()
    app.MainLoop()
main()

Duplicate to https://groups.google.com/forum/#!topic/wxpython-users/g7j87W6cDyc I guess.