Show the motherboard chipset

It should be possible to display the motherboard chipset using the lspci | grep 'Host bridge'. I try to add this method in the script

    def mobochipset(self):
        chipset = os.popen('lspci | grep \'Host bridge\'').read()

        return chipset[21:len(chipset)-1]

If you want I have 2 *.diff files with the changes.
Best regards