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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def display_notes(self):
 """Display information about scores and raters. """

        if self.annot is not None:
            short_xml_file = short_strings(basename(self.annot.xml_file))
            self.idx_annotations.setText(short_xml_file)
            # if annotations were loaded without dataset
            if self.parent.overview.scene is None:
                self.parent.overview.update()

            if not self.annot.raters:
                self.new_rater()

            self.idx_rater.setText(self.annot.current_rater)
            self.display_eventtype()
            self.update_annotations()
            self.display_stats()
            self.epoch_length = self.annot.epoch_length