tkinter GUI, problem running seperate files

[joe_momma]

One thing I saw was this error:

Error:
 line 75, in <lambda>
    command=lambda: controller.show_frame(PageFour))

briefly searched your classes and found no class or function controller you are requiring it in all the page inits but not supplying.? PageFour is a class and in show_frame you're looking for an integer or count??