Loggingdemo

log_example.py

import logging

''' 
Set up logger
'''
log = logging.getLogger(__file__.rsplit('/',1)[1]) ## if running interactively with ipython, replace this with a descriptive string
log.propagate = False
log.setLevel(logging.DEBUG)
logfile = 'test.log' 

'''
remove existing handlers
'''
while log.hasHandlers():
  log.removeHandler(log.handlers[0])


'''
Console Stream
'''
console = logging.StreamHandler()
formatter = logging.Formatter('%(levelname)-10s  %(message)s')
console.setFormatter(formatter)
console.setLevel(logging.INFO)
log.addHandler(console)


'''
File Debug
'''
tofile = logging.FileHandler(logfile, mode='a')
formatter = logging.Formatter('%(asctime)s ~ %(name)s ~ %(levelname)s ~ %(message)s')
tofile.setFormatter(formatter)
tofile.setLevel(logging.DEBUG)
log.addHandler(tofile)


'''
testData
'''
log.warning('Arrgghh!')
log.info('This is an info message!')
log.debug('Lets hope the user does not see this bug')


'''
Optional: replace print function with logger
'''
def print(*argv): 
    return log.info(' '.join(map(str,argv)))