def __configure_timeline(self, *args):
        """Function from ScrolledFrame, adapted for the _timeline"""
        # Resize the canvas scrollregion to fit the entire frame
        (size_x, size_y) = (self._timeline.winfo_reqwidth(), self._timeline.winfo_reqheight())
        self._canvas_scroll.config(scrollregion="0 0 {0} {1}".format(size_x, size_y - 5))
Function from ScrolledFrame, adapted for the _timeline