Error persists from py3.9 to 3.10. Exception in callback _ProactorBasePipeTransport._call_connection_lost(None) handle: <Handle _ProactorBasePipeTransport._call_connection_lost(None)> Traceback (most recent call last): File "C:\Users\hal\AppData\Local\Programs\Python\Python310\lib\asyncio\event...
Exceptionincallback _ProactorBasePipeTransport._call_connection_lost(None) handle: <Handle _ProactorBasePipeTransport._call_connection_lost(None)> Traceback (most recent call last): File"C:\Users\loser\AppData\Local\Programs\Python\Python38\lib\asyncio\events.py", line81,in_run self._context.r...
# 根据输入数据设置结果或异常ifdata=="success":future.set_result("Operation succeeded")else:future.set_exception(RuntimeError("Operation failed"))# Future 完成后调用的回调函数 deffuture_callback(future):try:print("Callback:",future.result()...
CancelledError During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/Users/zhaofan/vs_python/python_asyncio/ex1.py", line 115, in <module> comments = loop.run_until_complete(main(loop, post_id)) File "/usr/local/Cellar/python/3.7....
socket.SO_REUSEADDR,True)# 将「主动套接字」绑定在某个 IP 和端口上server.bind(("localhost",12345))# 监听,此时「主动套接字」会变成「监听套接字」# 里面的参数表示 backlog,代表的含义后面说server.listen(5)# 调用 accept,等待客户端连接,此时会阻塞在这里# 如果客户端连接到来,那么会返回「已连接套...
Exception in Tkinter callback Traceback (most recent call last): File "/usr/lib/python3.6/tkinter/__init__.py", line 1699, in __call__ return self.func(*args) File "./tk_simple.py", line 17, in do_tasks loop.run_until_complete(do_urls()) ...
exception calling callback for <Future at [...snip...]> Traceback (most recent call last): RuntimeError: Event loop is closed Fri Jan 24 16:25:09 2020 Hello from a thread! 幕后发生的情况是,run_in_executor()不创建Task实例:它只是返回一个Future。这意味着它不包含在asyncio.run()中...
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remove_done_callback(callback):从回调列表中移除 callback 。 cancel(msg=None):取消 Future 并调度回调函数。 exception():返回 Future 已设置的异常。 get_loop():返回 Future 对象已绑定的事件循环。 该Future 对象是为了模仿concurrent.futures.Future类。主要差异包含: - 与 asyncio 的 Future 不同,concurr...
(fut, loop=loop) fut.add_done_callback(cb) try: try: await waiter except futures.CancelledError: fut.remove_done_callback(cb) fut.cancel() raise if fut.done(): return fut.result() else: fut.remove_done_callback(cb) await _cancel_and_wait(fut, loop=loop) raise futures.TimeoutError...