-                b = wx.Button(frame, -1, " Exit ")
-                frame.SetSize((200, 100))
-                wx.EVT_BUTTON(frame, b.GetId(), self.OnButton)
+                p = wx.Panel(frame, -1)
+                b = wx.Button(p, -1, " Exit ", (10,10))
+                p.Fit()
+                frame.SetClientSize(p.GetSize())
+                #frame.SetSize((200, 100))
+                frame.Bind(wx.EVT_BUTTON, self.OnButton, b)