#python using logging module

gistfile1.py

# http://docs.python.org/release/2.3.5/lib/node304.html
# http://www.blog.pythonlibrary.org/2012/08/02/python-101-an-intro-to-logging/

import logging
logger = logging.getLogger('myapp')
hdlr = logging.FileHandler('/var/tmp/myapp.log')
formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s')
hdlr.setFormatter(formatter)
logger.addHandler(hdlr) 
logger.setLevel(logging.WARNING)
We can use this logger object now to write entries to the log file:

logger.error('We have a problem')
logger.info('While this is just chatty')