The logging module’s FileHandler takes care of that for you. No need for complexity. The handler takes an optional mode parameter, to specify whether it starts writing or appending data to it. From the docs: class logging.FileHandler(filename, mode=”a”, encoding=None, delay=False) The specified file is opened and used as the stream for logging. If mode is … Read more
Try this: filehandler_dbg = logging.FileHandler( logger.name + ‘-debug.log’, mode=”w”) to open the filename in write mode instead of append mode, clobbering logger.name More information: logging.FileHandler docs, open() and list of modes
Lose basicConfig() and use RotatingFileHandler: import logging from logging.handlers import RotatingFileHandler log_formatter = logging.Formatter(‘%(asctime)s %(levelname)s %(funcName)s(%(lineno)d) %(message)s’) logFile=”C:\\Temp\\log” my_handler = RotatingFileHandler(logFile, mode=”a”, maxBytes=5*1024*1024, backupCount=2, encoding=None, delay=0) my_handler.setFormatter(log_formatter) my_handler.setLevel(logging.INFO) app_log = logging.getLogger(‘root’) app_log.setLevel(logging.INFO) app_log.addHandler(my_handler) while True: app_log.info(“data”)