在Ubuntu终端窗口启动笔记本电脑时,会出现此错误。有人能解释一下这个错误吗?
KeyError: 3
ERROR:root:Exception in I/O handler for fd 3
Traceback (most recent call last):
File "/usr/lib/python2.7/dist-packages/zmq/eventloop/ioloop.py", line 330, in start
self._handlers[fd](fd, events)