This is my code
logger = logging.getLogger("MAIN")
main_handler_logger = logging.FileHandler("./LOGS/MAIN.log", encoding='utf-8')
main_handler_logger.setLevel(logging.INFO)
main_handler_logger.setFormatter(logging.Formatter('%(asctime)s - %(name)s - %(message)s'))
logger.addHandler(main_handler_logger)
logger.info("Started!")
why logging creates an empty .log file? whats wrong?
You are setting the level on your FileHandler - main_handler_logger. If you set the level for logger it will log to the file.
import logging
logger = logging.getLogger("MAIN")
logger.setLevel(logging.INFO)
main_handler_logger = logging.FileHandler("./LOGS/MAIN.log", encoding="utf-8")
main_handler_logger.setFormatter(
logging.Formatter("%(asctime)s - %(name)s - %(message)s")
)
logger.addHandler(main_handler_logger)
logger.info("Started!")
For easier setup with logging, I would use the basicConfig function.
import logging
logging.basicConfig(
level=logging.INFO,
format="%(asctime)s - %(name)s - %(message)s",
filename="myapp.log",
encoding="utf-8",
)
logger = logging.getLogger("MAIN")
logger.info("Started!")
delay kwarg is set to True on the FileHandler it won't create an empty file on instantiation.