logging_ext.py 文件源码

def get_handler(debug=False, syslog=False, logfile=None, rotation_parameters=None):
    """get an apropriate handler according to given parameters"""
    if os.environ.get('APYCOT_ROOT'):
        handler = logging.StreamHandler(sys.stdout)
    if debug:
        handler = logging.StreamHandler()
    elif logfile is None:
        if syslog:
            from logging import handlers
            handler = handlers.SysLogHandler()
        else:
            handler = logging.StreamHandler()
    else:
        try:
            if rotation_parameters is None:
                if os.name == 'posix' and sys.version_info >= (2, 6):
                    from logging.handlers import WatchedFileHandler
                    handler = WatchedFileHandler(logfile)
                else:
                    handler = logging.FileHandler(logfile)
            else:
                from logging.handlers import TimedRotatingFileHandler
                handler = TimedRotatingFileHandler(
                    logfile, **rotation_parameters)
        except IOError:
            handler = logging.StreamHandler()
    return handler