(self, number, what)
Shift the y-view according to NUMBER which is measured in
        "units" or "pages" (WHAT).
Shift the y-view according to NUMBER which is measured in
        "units" or "pages" (WHAT).
Shift the y - view according to NUMBER which is measured in units or pages ( WHAT ) .
def yview_scroll(self, number, what):
        """Shift the y-view according to NUMBER which is measured in
        "units" or "pages" (WHAT)."""
        self.tk.call(self._w, 'yview', 'scroll', number, what)
def yview_scroll ( self , number , what ) : self . tk . call ( self . _w , 'yview' , 'scroll' , number , what )