Windows下IPython/Jupyter触发_overlapped.Overlapped运行时错误如何解决

复现说明 #

该RuntimeError无需执行自定义代码即可复现：仅启动IPython进入交互提示符后，连续多次按回车键就会抛出对应错误。
提前添加的asyncio事件循环适配代码如下：

import platform, asyncio
if platform.system() == 'Windows':
    asyncio.set_event_loop_policy(asyncio.WindowsSelectorEventLoopPolicy())

复现步骤 #

• 执行命令ipython -i --no-banner enumerate_vs_range.py启动IPython
• 启动后不输入任何执行代码，仅连续按2-3次回车
• 终端抛出如下报错：

(base) C:\Users\03987N744\Training_notebook>ipython -i --no-banner enumerate_vs_range.py

In [1]:

In [1]:

In [1]:

Traceback (most recent call last):
  File "C:\Users\Anaconda3\lib\asyncio\windows_events.py", line 439, in select
    self._poll(timeout)
RuntimeError: <_overlapped.Overlapped object at 0x0000022127E19DB0> still has pending operation at deallocation, the process may crash

问题特征 #

• 该异常仅在IPython、Jupyter Notebook环境下出现
• 原生标准Python环境不会触发该问题

内容的提问来源于stack exchange，提问作者Anicaprio