#!/usr/bin/env python
     #
     # Copyright 2007 Doug Hellmann.
     #
     #
     #                         All Rights Reserved
     #
     # Permission to use, copy, modify, and distribute this software and
     # its documentation for any purpose and without fee is hereby
     # granted, provided that the above copyright notice appear in all
     # copies and that both that copyright notice and this permission
     # notice appear in supporting documentation, and that the name of Doug
     # Hellmann not be used in advertising or publicity pertaining to
     # distribution of the software without specific, written prior
     # permission.
     #
     # DOUG HELLMANN DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
     # INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN
     # NO EVENT SHALL DOUG HELLMANN BE LIABLE FOR ANY SPECIAL, INDIRECT OR
     # CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
     # OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
     # NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
     # CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     #
     
     """Log to a file, creating a new file every 20 bytes
     
     See http://blog.doughellmann.com/2007/05/pymotw-logging.html
     
     """
     
     __module_id__ = "$Id$"
     #end_pymotw_header
     
     import glob
     import logging
     import logging.handlers
     
     LOG_FILENAME = 'logging_rotatingfile_example.out'
     
     # Set up a specific logger with our desired output level
     my_logger = logging.getLogger('MyLogger')
     my_logger.setLevel(logging.DEBUG)
     
     # Add the log message handler to the logger
     handler = logging.handlers.RotatingFileHandler(LOG_FILENAME,
                                                    maxBytes=20,
                                                    backupCount=5,
                                                    )
     my_logger.addHandler(handler)
     
     # Log some messages
     for i in range(20):
         my_logger.debug('i = %d' % i)
     
     # See what files are created
     logfiles = glob.glob('%s*' % LOG_FILENAME)
     for filename in logfiles:
         print filename