Example logging code for Python (since I'm always having to look it up).

python_logging_examples.py

#!/usr/bin/env python

"""
Originally taken from my pandoc filter code.   
It has good examples of logging in use.  
"""
import logging

LOG_FILENAME = 'my_log_name_here.log'

# create formatter and add it to the handlers
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')

# Set up a specific logger with our desired output level
named_logger = logging.getLogger('Name this logger')
named_logger.setLevel(logging.DEBUG)

# Create file handler which logs even debug messages
fh = logging.FileHandler(LOG_FILENAME)
fh.setLevel(logging.DEBUG)
fh.setFormatter(formatter)
# add the handler to logger
named_logger.addHandler(fh)

# Create console handler with a higher log level
ch = logging.StreamHandler()
ch.setLevel(logging.DEBUG)
ch.setFormatter(formatter)
# add the handler to the logger
named_logger.addHandler(ch)

named_logger.warning('This is a warning entry.')
named_logger.debug('This is a debug entry.')
named_logger.info('This is an information entry.')

def function_with_logging(someText):
	named_logger.info("Text in argument: %s", someText)
	return