class AppFilter(logging.Filter):

    def filter(self, record):
        record.app_name = 'Super App'
return True
logger = logging.getLogger(__name__)
logger.addFilter(AppFilter())
syslog = logging.StreamHandler()
formatter = logging.Formatter('%(asctime)s %(app_name)s : %(message)s')
syslog.setFormatter(formatter)
logger.setLevel(logging.INFO)
logger.addHandler(syslog)
logger.info('The sky is so blue')
Как добавить настраиваемое поле в строку формата журнала Python?