Tkinter - changing existing Dialog?

[Michael Yanowitz]

Hello:


   I have a Tkinter GUI Dialog with many buttons and labels and text
widgets.
What I would like to do is, can I:

1) Disable/deactivate/hide a button, text widget that is already drawn (and
   of course the opposite enable/activate/show it)?

2) Change the text of a label or button that is already drawn?

  based on actions taken by the user. Can it be done without destroying
the present dialog or the objects in it and creating a new one?

  Sorry for what probably is such a trivial and basic question. I just can't
find the answer or know what the technical term for what I want to do is to
search for it myself.

Thanks in advance:
Michael Yanowitz