'calls the unix `sensors` command with `-f` flag if user has specified that
the output should be read in Fahrenheit.'

@catch_exception_and_warn(warning=UnixCommandNotFound, excepts=OSError)
def get_temp_sensors(self):

    command = ['sensors']
    if (not self.metric):
        command.append('-f')
    sensors_out = self.call_process(command)
    return self._format_sensors_output(sensors_out)
