logging_schema.py

import logging
from logging.handlers import RotatingFileHandler
import inspect

def create_rotating_log():
    '''
    Creates a rotating logger function
    :return:
    '''
    logger = logging.getLogger(_settings.Name)

    logger.setLevel(logging.DEBUG)
    # create console handler with a higher log level
    ch = logging.StreamHandler()
    ch.setLevel(logging.ERROR)
    # add a rotating handler
    # create file handler which logs even debug messages
    fh = logging.handlers.RotatingFileHandler('app.log', maxBytes=5000,
                                  backupCount=4)
    fh.setLevel(logging.DEBUG)
    # create formatter and add it to the handlers
    formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
    fh.setFormatter(formatter)
    ch.setFormatter(formatter)
    # add the handlers to the logger
    logger.addHandler(fh)
    logger.addHandler(ch)

    return logger

logger = create_rotating_log()


def log_name(f):
    @wraps(f)
    def wrapper(*args, **kwds):
        logger.info('Calling: {0}'.format(f.__name__))
        return f(*args,**kwds)

    return wrapper
  
@log_name
def a_function():
  
  print('do stuff')
  
  try:
    print('do_tricky_stuff')
  except Exception as ex:
    logger.exception('Function {0} : {1}'.format(inspect.getframeinfo(inspect.currentframe()).function, ex))