Jupyter Server: No Kernel

[pawlowski6132]

I've researched this issue for two days now and can't seem to figure this one out. I can't seem to get connected. I'm trying to run Jupyter Notebook in a few different configurations: In Studio code and stand alone. I'm having the exact same issues on two different wintel machines. One a corp machine, the other personal. I have Python 3.8 on both NON anaconda. Windows 10. Also having same issue with fresh Anaconda install on second machine.

I would really like to be able to use Jupyter Notebooks as I have three boys who are eager to start learning Python but, I can't get through this issue to use these. Any help would be greatly appreciated.

Here's the output details:

C:\Users\jopawlow>jupyter notebook --port 1900
[W 07:26:20.473 NotebookApp] Terminals not available (error was No module named 'winpty.cywinpty')
[I 07:26:20.473 NotebookApp] Serving notebooks from local directory: C:\Users\jopawlow
[I 07:26:20.474 NotebookApp] The Jupyter Notebook is running at:
[I 07:26:20.474 NotebookApp] http://localhost:1900/?token=5f82a2009bd791c87087e28adfbaedcbc97245735fc2292b
[I 07:26:20.474 NotebookApp] or http://127.0.0.1:1900/?token=5f82a2009bd791c87087e28adfbaedcbc97245735fc2292b
[I 07:26:20.474 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 07:26:20.798 NotebookApp]

To access the notebook, open this file in a browser:
    file:///C:/Users/jopawlow/AppData/Roaming/jupyter/runtime/nbserver-14700-open.html
Or copy and paste one of these URLs:
    http://localhost:1900/?token=5f82a2009bd791c87087e28adfbaedcbc97245735fc2292b
 or http://127.0.0.1:1900/?token=5f82a2009bd791c87087e28adfbaedcbc97245735fc2292b

[W 07:26:32.446 NotebookApp] 404 GET /undefined (127.0.0.1) 29.00ms referer=None
[I 07:26:32.470 NotebookApp] Creating new notebook in
[I 07:26:35.209 NotebookApp] Kernel started: d3d0d9f4-2058-4084-92da-9107e65db82f
[W 07:26:35.267 NotebookApp] 404 GET /nbextensions/widgets/notebook/js/extension.js?v=20200124072619 (127.0.0.1) 51.00ms referer=http://localhost:1900/notebooks/Untitled3.ipynb?kernel_name=python38032bit9b5acfee8b854d0d93ac0e2f85d921b8
Traceback (most recent call last):
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\runpy.py", line 192, in _run_module_as_main
return _run_code(code, main_globals, None,
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\runpy.py", line 85, in _run_code
exec(code, run_globals)
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\ipykernel_launcher.py", line 16, in
app.launch_new_instance()
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\traitlets\config\application.py", line 663, in launch_instance
app.initialize(argv)
File "<C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\decorator.py:decorator-gen-125>", line 2, in initialize
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\traitlets\config\application.py", line 87, in catch_config_error
return method(app, *args, **kwargs)
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\ipykernel\kernelapp.py", line 527, in initialize
self.init_sockets()
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\ipykernel\kernelapp.py", line 287, in init_sockets
self.init_iopub(context)
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\ipykernel\kernelapp.py", line 295, in init_iopub
self.iopub_thread = IOPubThread(self.iopub_socket, pipe=True)
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\ipykernel\iostream.py", line 68, in init
self._setup_pipe_in()
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\ipykernel\iostream.py", line 141, in _setup_pipe_in
self._pipe_in = ZMQStream(pipe_in, self.io_loop)
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\zmq\eventloop\zmqstream.py", line 127, in init
self._init_io_state()
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\zmq\eventloop\zmqstream.py", line 546, in _init_io_state
self.io_loop.add_handler(self.socket, self._handle_events, self.io_loop.READ)
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\site-packages\tornado\platform\asyncio.py", line 99, in add_handler
self.asyncio_loop.add_reader(fd, self._handle_events, fd, IOLoop.READ)
File "C:\Users\jopawlow\AppData\Local\Programs\Python\Python38-32\lib\asyncio\events.py", line 501, in add_reader
raise NotImplementedError
NotImplementedError
[W 07:27:35.309 NotebookApp] Timeout waiting for kernel_info reply from d3d0d9f4-2058-4084-92da-9107e65db82f
[I 07:28:10.900 NotebookApp] Starting buffering for d3d0d9f4-2058-4084-92da-9107e65db82f:20bc1394b5a746bd8bf7e8c5aa27d9f2
[I 07:31:35.576 NotebookApp] Shutting down on /api/shutdown request.
[I 07:31:35.581 NotebookApp] Shutting down 1 kernel
[I 07:31:40.617 NotebookApp] Kernel shutdown: d3d0d9f4-2058-4084-92da-9107e65db82f

Thank you in advance. I really appreciate the guidance.

[kevin-bates]

This is related to the Win10/py38 issue and fixed via #5047.

Now that notebook 6.0.3 is available and contains the appropriate fix, please upgrade notebook.

pip install notebook --upgrade

or, for conda envs,

conda update -c conda-forge notebook

Note. If you're using ipykernel, you'll likely need to upgrade that as well, but I don't think it has been released, so an install from GitHub would be warranted.

[pawlowski6132]

Crap. I tried that. I was really hoping that would work. Sigh. Thanx so much for taking the time to reply and try to help me.

…

On Fri, Jan 24, 2020 at 11:26 AM Kevin Bates ***@***.***> wrote: This is related to the Win10/py38 issue and fixed via #5047 <#5047>. Now that notebook 6.0.3 is available and contains the appropriate fix, please upgrade notebook. pip install notebook --upgrade or, for conda envs, conda update -c conda-forge notebook Note. If you're using ipykernel <ipython/ipykernel#456>, you'll likely need to upgrade that as well, but I don't think it has been released, so an install from GitHub would be warranted. — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#5182?email_source=notifications&email_token=AN3CFPE2A3MG37UI2RS4XF3Q7MJEHA5CNFSM4KLGEH52YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEJ3KM4A#issuecomment-578201200>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AN3CFPAOFZTEFC5UGHCIKJ3Q7MJEHANCNFSM4KLGEH5Q> .

-- Regards, Joe Pawlowski