[E 11:36:06.612 NotebookApp] Exception in callback functools.partial(.null_wrapper at 0x000001CFDB6B2820>, count=0) Traceback (most recent call last): File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\ioloop.py", line 758, in _run_callback ret = callback() File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\stack_context.py", line 300, in null_wrapper return fn(*args, **kwargs) File "~\appdata\local\programs\python\python39\lib\site-packages\notebook\services\kernels\handlers.py", line 207, in nudge if self.ws_connection is None or self.ws_connection.is_closing(): AttributeError: 'WebSocketProtocol13' object has no attribute 'is_closing' [E 11:37:06.624 NotebookApp] Exception in callback functools.partial(.null_wrapper at 0x000001CFDB6B2D30>, ) Traceback (most recent call last): File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\ioloop.py", line 758, in _run_callback ret = callback() File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\stack_context.py", line 300, in null_wrapper return fn(*args, **kwargs) File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\websocket.py", line 553, in self.stream.io_loop.add_future(result, lambda f: f.result()) tornado.util.TimeoutError: Timeout ERROR:asyncio:Future exception was never retrieved future: Traceback (most recent call last): File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\gen.py", line 1141, in run yielded = self.gen.throw(*exc_info) File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\websocket.py", line 757, in _accept_connection yield open_result File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\gen.py", line 1133, in run value = future.result() File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\ioloop.py", line 758, in _run_callback ret = callback() File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\stack_context.py", line 300, in null_wrapper return fn(*args, **kwargs) File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\websocket.py", line 553, in self.stream.io_loop.add_future(result, lambda f: f.result()) tornado.util.TimeoutError: Timeout [W 11:37:36.580 NotebookApp] WebSocket ping timeout after 90011 ms. [W 11:37:39.631 NotebookApp] Replacing stale connection: 52060757-8bf6-40c0-b659-e53e48541c3c:0542aa5aa909428097f6bcd23f7ff7df [I 11:37:41.596 NotebookApp] Starting buffering for 52060757-8bf6-40c0-b659-e53e48541c3c:0542aa5aa909428097f6bcd23f7ff7df [I 11:37:41.607 NotebookApp] Restoring connection for 52060757-8bf6-40c0-b659-e53e48541c3c:0542aa5aa909428097f6bcd23f7ff7df [E 11:37:41.617 NotebookApp] Exception in callback functools.partial(.null_wrapper at 0x000001CFDB74E310>, count=0) Traceback (most recent call last): File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\ioloop.py", line 758, in _run_callback ret = callback() File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\stack_context.py", line 300, in null_wrapper return fn(*args, **kwargs) File "~\appdata\local\programs\python\python39\lib\site-packages\notebook\services\kernels\handlers.py", line 207, in nudge if self.ws_connection is None or self.ws_connection.is_closing(): AttributeError: 'WebSocketProtocol13' object has no attribute 'is_closing' [I 11:38:05.423 NotebookApp] Saving file at ~.ipynb [E 11:38:41.628 NotebookApp] Exception in callback functools.partial(.null_wrapper at 0x000001CFDB7540D0>, ) Traceback (most recent call last): File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\ioloop.py", line 758, in _run_callback ret = callback() File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\stack_context.py", line 300, in null_wrapper return fn(*args, **kwargs) File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\websocket.py", line 553, in self.stream.io_loop.add_future(result, lambda f: f.result()) tornado.util.TimeoutError: Timeout ERROR:asyncio:Future exception was never retrieved future: Traceback (most recent call last): File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\gen.py", line 1141, in run yielded = self.gen.throw(*exc_info) File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\websocket.py", line 757, in _accept_connection yield open_result File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\gen.py", line 1133, in run value = future.result() File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\ioloop.py", line 758, in _run_callback ret = callback() File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\stack_context.py", line 300, in null_wrapper return fn(*args, **kwargs) File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\websocket.py", line 553, in self.stream.io_loop.add_future(result, lambda f: f.result()) tornado.util.TimeoutError: Timeout [W 11:39:41.633 NotebookApp] WebSocket ping timeout after 120025 ms. [W 11:39:59.494 NotebookApp] Replacing stale connection: 52060757-8bf6-40c0-b659-e53e48541c3c:0542aa5aa909428097f6bcd23f7ff7df [I 11:40:01.447 NotebookApp] Starting buffering for 52060757-8bf6-40c0-b659-e53e48541c3c:0542aa5aa909428097f6bcd23f7ff7df [I 11:40:01.450 NotebookApp] Restoring connection for 52060757-8bf6-40c0-b659-e53e48541c3c:0542aa5aa909428097f6bcd23f7ff7df [E 11:40:01.455 NotebookApp] Exception in callback functools.partial(.null_wrapper at 0x000001CFDB646DC0>, count=0) Traceback (most recent call last): File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\ioloop.py", line 758, in _run_callback ret = callback() File "~\appdata\local\programs\python\python39\lib\site-packages\tornado\stack_context.py", line 300, in null_wrapper return fn(*args, **kwargs) File "~\appdata\local\programs\python\python39\lib\site-packages\notebook\services\kernels\handlers.py", line 207, in nudge if self.ws_connection is None or self.ws_connection.is_closing(): AttributeError: 'WebSocketProtocol13' object has no attribute 'is_closing'