base_events.py 文件源码

def __init__(self):
        self._closed = False
        self._ready = collections.deque()
        self._scheduled = []
        self._default_executor = None
        self._internal_fds = 0
        self._running = False
        self._clock_resolution = time.get_clock_info('monotonic').resolution
        self._exception_handler = None
        self._debug = (not sys.flags.ignore_environment
                       and bool(os.environ.get('PYTHONASYNCIODEBUG')))
        # In debug mode, if the execution of a callback or a step of a task
        # exceed this duration in seconds, the slow callback/task is logged.
        self.slow_callback_duration = 0.1