config_logger.py

import logging, os
import userConfig


def memoize(function):
    """ decorator for caching results """
    memo = {}

    def wrapper(*args):
        if args in memo:
            return memo[args]
        else:
            rv = function(*args)
            memo[args] = rv
            return rv

    return wrapper


#only call once !
@memoize
def do_config():

    logger = logging.getLogger('de.mineway.emzed')
    logger.setLevel(logging.DEBUG)

    # create file handler which logs even debug messages
    op = os.path
    try:
        os.mkdir("logs")
    except:
        pass


    logPath = userConfig.getEmzedFolder()
    if not os.path.exists(logPath):
        os.makedirs(logPath)

    fh = logging.FileHandler(os.path.join(logPath, "emzed.log"))
    fh.setLevel(logging.DEBUG)

    # create console handler with a higher log level
    ch = logging.StreamHandler()
    ch.setLevel(logging.WARN)

    # create formatter and add it to the handlers
    formatter = logging.Formatter('%(asctime)s - %(process)s - %(levelname)s - %(message)s')
    ch.setFormatter(formatter)
    fh.setFormatter(formatter)
    # add the handlers to logger
    logger.addHandler(ch)
    logger.addHandler(fh)

    __builtins__["LLL"] = logger

    logger.debug("start logging")