tools.py 文件源码

def exception_hook(exctype, value, tb):
    """
    Catch any unhandled exception and print its stack trace.
    Useful to see what is going on when scrapper crashes.
    """
    logger = logging.getLogger('main')
    logger.critical('{0}: {1}'.format(exctype, value))
    logger.critical(''.join(traceback.format_tb(tb)))