How to use the scons.scons-time.Gnuplotter function in SCons

def gnuplot_results(self, results, fmt='%s %.3f'):
        """
        Prints out a set of results in Gnuplot format.
        """
        gp = Gnuplotter(self.title, self.key_location)

        for i in sorted(results.keys()):
            try:
                t = self.run_titles[i]
            except IndexError:
                t = '??? %s ???' % i
            results[i].sort()
            gp.line(results[i], i+1, t, None, t, fmt=fmt)

        for bar_tuple in self.vertical_bars:
            try:
                x, type, label, comment = bar_tuple
            except ValueError:
                x, type, label = bar_tuple
                comment = label
            gp.vertical_bar(x, type, label, comment)

def gnuplot_results(self, results, fmt='%s %.3f'):
        """
        Prints out a set of results in Gnuplot format.
        """
        gp = Gnuplotter(self.title, self.key_location)

        for i in sorted(results.keys()):
            try:
                t = self.run_titles[i]
            except IndexError:
                t = '??? %s ???' % i
            results[i].sort()
            gp.line(results[i], i+1, t, None, t, fmt=fmt)

        for bar_tuple in self.vertical_bars:
            try:
                x, type, label, comment = bar_tuple
            except ValueError:
                x, type, label = bar_tuple
                comment = label
            gp.vertical_bar(x, type, label, comment)