DatedLogFile.py

import logging
import sys
import traceback
import os
import time
import Queue


class DatedLogFile(logging.FileHandler):
    """A logging handler class that uses a site standard
    filename and format.
    """

    def __init__(self, path, debug=False):
        """Open a file in the `dir` directory as a stream for logging.

        The log's filename will be automatically formatted to the current date in following Python strftime form::
            ``time.strftime("%Y%m%d")+".log")``

        :param path: Logfile directory
        :param debug: Should debug messages be logged?
        """

        filename = os.path.join(path, time.strftime("%Y%m%d") + ".log")
        logging.FileHandler.__init__(self, filename)
        self.setFormatter(logging.Formatter('%(asctime)s - %(levelname)s - %(message)s'))


        if debug:
            logging.getLogger().setLevel(logging.DEBUG)
        else:
            logging.getLogger().setLevel(logging.INFO)

example.py

import logging
from DatedLogFile import DatedLogFile

LOG_DIR = '/var/log/foo/'

# attach to root logger
logging.getLogger().addHandler(DatedLogFile(LOG_DIR))

logging.info('stuff')