How to write GUI and event separately in wxPython??

[Jia Lu]

HI all

 I am making an application with wxpython.
 But I got a problem when I want to change the display string
according to process status.

 I passed the frame to the processing function and use the
frame.txtobj to change displaying strings.

 I found it is a bad method to do that.
 Can any one tell me how to do that usually?
( How to separate GUI and Control code? )

Thank you.