log.py 文件源码

def init(ident = None, args = None):
  """
  Initialize logging system.

  Default logging destination is stderr if "args" is not specified.
  """

  # pylint: disable=E1103

  if ident is None:
    ident = os.path.basename(sys.argv[0])

  if args is None:
    args = argparse.Namespace(log_level   = logging.WARNING,
                              log_handler = logging.StreamHandler)

  handler = args.log_handler()
  handler.setFormatter(Formatter(ident, handler))

  root_logger = logging.getLogger()
  root_logger.addHandler(handler)
  root_logger.setLevel(args.log_level)

  if ident and have_setproctitle and use_setproctitle:
    if proctitle_extra:
      setproctitle.setproctitle("%s (%s)" % (ident, proctitle_extra))
    else:
      setproctitle.setproctitle(ident)