voltservice.py file using dbus

voltservice.py

#!/usr/bin/python2

import gtk
import dbus
import dbus.service
import dbus.mainloop
import dbus.mainloop.glib
import spivolt
from dbus.mainloop.glib import DBusGMainLoop

class SpiVoltService(dbus.service.Object):
    def __init__(self):
        self.dev = spivolt.SpiVolt()
        bus_name = dbus.service.BusName('net.watte.robots.voltmon', bus = dbus.SystemBus())
        dbus.service.Object.__init__(self, object_path='/net/watte/robots/voltmon', bus_name=bus_name);

    @dbus.service.method('net.watte.robots.voltmon')
    def read(self):
        ret = self.dev.read()
        if not ret:
            return 0.0
        return ret

    @dbus.service.method('net.watte.robots.voltmon')
    def off(self):
        self.dev.off()

if __name__ == "__main__":
    theLoop = DBusGMainLoop(set_as_default=True)
    theSvc = SpiVoltService()
    gtk.main()