RotatingFileHandler

example_rotating_file_handler.py

import logging

LOG_FILENAME = '/tmp/mongodb_backups.log'
# Set up a specific logger with our desired output level
logger = logging.getLogger('dico')
logger.setLevel(logging.DEBUG)
# Add the log message handler to the logger
handler = logging.handlers.RotatingFileHandler(
              LOG_FILENAME, backupCount=3, maxBytes=10000000)
handler.setFormatter(logging.Formatter("%(asctime)s;%(levelname)s;%(message)s",
                              "%Y-%m-%d %H:%M:%S"))
logger.addHandler(handler)