child process - this holds all the GUI elements

def child_task(self):
        '''child process - this holds all the GUI elements'''
        mp_util.child_close_fds()
        
        import matplotlib
        import wx_processguard
        from wx_loader import wx
        from live_graph_ui import GraphFrame

        matplotlib.use('WXAgg')
        app = wx.App(False)
        app.frame = GraphFrame(state=self)
        app.frame.Show()
        app.MainLoop()