def discover_sensors(topic, payload):
 parts = topic.split('/')
 unit = payload.get('units', '')
 domain = parts[1]
 if (domain == 'temperature'):
  name = parts[2]
  if (unit == 'F'):
   unit = TEMP_FAHRENHEIT
  else:
   unit = TEMP_CELSIUS
  return ArwnSensor(name, 'temp', unit)
 if (domain == 'barometer'):
  return ArwnSensor('Barometer', 'pressure', unit)
 if (domain == 'wind'):
  return (ArwnSensor('Wind Speed', 'speed', unit), ArwnSensor('Wind Gust', 'gust', unit), ArwnSensor('Wind Direction', 'direction', '\xc2\xb0'))

def discover_sensors ( topic , payload ) : parts = topic . split ( '/' ) unit = payload . get ( 'units' , '' ) domain = parts [ 1 ] if ( domain == 'temperature' ) : name = parts [ 2 ] if ( unit == 'F' ) : unit = TEMP_FAHRENHEIT else : unit = TEMP_CELSIUS return ArwnSensor ( name , 'temp' , unit ) if ( domain == 'barometer' ) : return ArwnSensor ( 'Barometer' , 'pressure' , unit ) if ( domain == 'wind' ) : return ( ArwnSensor ( 'Wind Speed' , 'speed' , unit ) , ArwnSensor ( 'Wind Gust' , 'gust' , unit ) , ArwnSensor ( 'Wind Direction' , 'direction' , '\xc2\xb0' ) )
given a topic .