I now see that I can accomplish what I want using the Canvas widget, instead of the Text widget (I.e., I can create a window on it, delete the window, then re add it without recreating the underlying widget object).
As I don't want the raw contents user-editable, I guess its better to use a Canvas, rather than a Text (slightly harder to use, though, I guess) neal -- http://mail.python.org/mailman/listinfo/python-list
