NEWBIE Tkinter.Text question

[Denis Treskunov]

Could someone tell me how to scroll by page in the Text widget?

I've been looking for an answer for a long time. The problem is, I don't 
know how to find out the index of the first invisible line at the top of 
the widget. I tried using .yview()[0] but it doesn't work as expected. 
I'm sure I'm missing something here.

Denis Treskunov
Berkeley, California