def set_burn_in_from_config(self, cp):
        """Sets the burn in class from the given config file.

        If no burn-in section exists in the file, then this just set the
        burn-in class to None.
        """
        try:
            bit = self.burn_in_class.from_config(cp, self)
        except ConfigParser.Error:
            bit = None
        self.set_burn_in(bit)
Sets the burn in class from the given config file.

        If no burn-in section exists in the file, then this just set the
        burn-in class to None.