utils.py 文件源码

def check_busy(func):
    """
    Decorator to check for self.is_busy
    Only one of the decorated functions may run simultaniously
    """

    @wraps(func)
    def decorator(self, *args, **kwargs):
        if self.is_busy:
            logging.critical("Already busy. Please wait.")
            return None
        self.is_busy = True
        try:
            func(self, *args, **kwargs)
        except Exception as e:
            logging.critical(e)
        self.is_busy = False
    return decorator