smbinterp/interp/__init__.py

import os

import logging
import logging.handlers

import json


LEVELS = {'debug': logging.DEBUG,
         'info': logging.INFO,
         'warning': logging.WARNING,
         'error': logging.ERROR,
         'critical': logging.CRITICAL}

default_config = {
  'filename': '/tmp/interp.log',
  'level': 'debug',
  'size' : 102400,
  'logbackup': 10,
}

with open(os.path.expanduser('~/.config/interp.json')) as config_file:
  d = json.load(config_file)

config = dict(default_config.items() + d.items())

print config

logger    = logging.getLogger('interp')
logger.setLevel(LEVELS[config['level']])
my_format = logging.Formatter('%(asctime)s %(levelname)s (%(process)d) %(filename)s %(funcName)s:%(lineno)d %(message)s')
handler   = logging.handlers.RotatingFileHandler(
                 config['filename'], maxBytes = config['size'] * 1024, backupCount = config['logbackup'])
handler.setFormatter(my_format)
logger.addHandler(handler)