import wx

class App(wx.App):
    def OnInit(self):
        frame1 = wx.Frame(None)
        panel1 = wx.Panel(frame1)
        wx.StaticText(panel1, -1, "This is panel 1")
        frame1.Show()
        frame2 = wx.Frame(frame1)
        panel2 = wx.Panel(frame2)
        wx.StaticText(panel2, -1, "This is panel 2")
        frame2.Show()
        return True

app = App(redirect = False)
app.MainLoop()