Mine

#!/usr/bin/pythonimport pygtkimport gtkimport commandsclass progressbar:    def delete_event(self, widget, event, data=None):    gtk.main_quit()    return False  def __init__(self, fraction):    self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)    self.window.set_border_width(10)    self.window.connect("delete_event", self.delete_event)    self.bar = gtk.ProgressBar()    self.bar.set_fraction(fraction)    self.bar.set_orientation(gtk.PROGRESS_LEFT_TO_RIGHT)    self.bar.set_text("Volume")    self.bar.show()    self.window.add(self.bar)    self.window.show()def main():  gtk.main()#volume = float(commands.getoutput("aumix -q | awk '/vol/ {print $3}'"))/100volume = 0.5progress = progressbar(volume)main()