#!/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.
     #
     
     """Simple logging to stderr using different levels.
     
     See http://blog.doughellmann.com/2007/05/pymotw-logging.html
     
     """
     
     __module_id__ = "$Id$"
     #end_pymotw_header
     
     import logging
     import sys
     
     LEVELS = { 'debug':logging.DEBUG,
                 'info':logging.INFO,
                 'warning':logging.WARNING,
                 'error':logging.ERROR,
                 'critical':logging.CRITICAL,
                 }
     
     if len(sys.argv) > 1:
         level_name = sys.argv[1]
         level = LEVELS.get(level_name, logging.NOTSET)
         logging.basicConfig(level=level)
     
     logging.debug('This is a debug message')
     logging.info('This is an info message')
     logging.warning('This is a warning message')
     logging.error('This is an error message')
     logging.critical('This is a critical error message')