我正在尝试打开 jupyter 笔记本，但在终端上出现错误。我正在使用 mac 机器。我已通过 jupyter 安装了 brew，并且在出现错误时更新了 ipykernl。
python3 -m pip install --upgrade ipykernel
当我尝试打开笔记本时，我在终端中收到以下错误。
ERROR:tornado.general:Uncaught exception in ZMQStream callback
Traceback (most recent call last):
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 444, in _run_callback
callback(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/tornado/stack_context.py", line 277, in null_wrapper
return fn(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 283, in dispatcher
return self.dispatch_shell(stream, msg)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 233, in dispatch_shell
self.pre_handler_hook()
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 248, in pre_handler_hook
self.saved_sigint_handler = signal(SIGINT, default_int_handler)
ValueError: signal only works in main thread
ERROR:tornado.general:Uncaught exception in zmqstream callback
Traceback (most recent call last):
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 462, in _handle_events
self._handle_recv()
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 492, in _handle_recv
self._run_callback(callback, msg)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 444, in _run_callback
callback(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/tornado/stack_context.py", line 277, in null_wrapper
return fn(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 283, in dispatcher
return self.dispatch_shell(stream, msg)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 233, in dispatch_shell
self.pre_handler_hook()
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 248, in pre_handler_hook
self.saved_sigint_handler = signal(SIGINT, default_int_handler)
ValueError: signal only works in main thread
ERROR:tornado.application:Exception in callback <functools.partial object at 0x10be913c0>
Traceback (most recent call last):
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/tornado/ioloop.py", line 605, in _run_callback
ret = callback()
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/tornado/stack_context.py", line 277, in null_wrapper
return fn(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 548, in <lambda>
self.io_loop.add_callback(lambda : self._handle_events(self.socket, 0))
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 462, in _handle_events
self._handle_recv()
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 492, in _handle_recv
self._run_callback(callback, msg)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 444, in _run_callback
callback(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/tornado/stack_context.py", line 277, in null_wrapper
return fn(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 283, in dispatcher
return self.dispatch_shell(stream, msg)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 233, in dispatch_shell
self.pre_handler_hook()
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 248, in pre_handler_hook
self.saved_sigint_handler = signal(SIGINT, default_int_handler)
ValueError: signal only works in main thread
[W 18:04:10.649 NotebookApp] Timeout waiting for kernel_info reply from c8c7cc7a-5146-461b-9433-48104fc0eda3
ERROR:tornado.general:Uncaught exception in ZMQStream callback
Traceback (most recent call last):
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 444, in _run_callback
callback(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/tornado/stack_context.py", line 277, in null_wrapper
return fn(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 283, in dispatcher
return self.dispatch_shell(stream, msg)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 233, in dispatch_shell
self.pre_handler_hook()
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 248, in pre_handler_hook
self.saved_sigint_handler = signal(SIGINT, default_int_handler)
ValueError: signal only works in main thread
ERROR:tornado.general:Uncaught exception in zmqstream callback
Traceback (most recent call last):
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 462, in _handle_events
self._handle_recv()
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 492, in _handle_recv
self._run_callback(callback, msg)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 444, in _run_callback
callback(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/tornado/stack_context.py", line 277, in null_wrapper
return fn(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 283, in dispatcher
return self.dispatch_shell(stream, msg)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 233, in dispatch_shell
self.pre_handler_hook()
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 248, in pre_handler_hook
self.saved_sigint_handler = signal(SIGINT, default_int_handler)
ValueError: signal only works in main thread
ERROR:tornado.application:Exception in callback (<zmq.sugar.socket.Socket object at 0x10be26de0>, <function null_wrapper at 0x10be66578>)
Traceback (most recent call last):
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/tornado/ioloop.py", line 888, in start
handler_func(fd_obj, events)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/tornado/stack_context.py", line 277, in null_wrapper
return fn(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 462, in _handle_events
self._handle_recv()
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 492, in _handle_recv
self._run_callback(callback, msg)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/zmq/eventloop/zmqstream.py", line 444, in _run_callback
callback(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/tornado/stack_context.py", line 277, in null_wrapper
return fn(*args, **kwargs)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 283, in dispatcher
return self.dispatch_shell(stream, msg)
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 233, in dispatch_shell
self.pre_handler_hook()
File "/Users/emassaro/Library/Python/2.7/lib/python/site-packages/ipykernel/kernelbase.py", line 248, in pre_handler_hook
self.saved_sigint_handler = signal(SIGINT, default_int_handler)
ValueError: signal only works in main thread