def get_plant_specs(plant, spec, key='description'):
    """Returns a specific plant attribute for a specific plant"""
    if spec == 'water':
        return plant.get_water(key)
    elif spec == 'sun':
        return plant.get_sun(key)
    elif spec == 'humidity':
        return plant.get_humidity(key)
    elif spec == 'temp':
        return plant.get_temp(key)
    else:
        return None