[I 17:15:22.631 NotebookApp] Kernel started: b9f0c1b0-1514-45d7-b85b-cd4c6debbd4e, name: ir Is this a bug on tornado 6.0? So, for your issue just make sure whether your launched new notebook is in your working directory or not. Any notebooks I attempted to open in the same directory as where this file was had trouble connecting to the kernel. the original issue was caused by using pip in a conda environment to install some unrelated package (google.colab), which then messed up the jupyter installation (with some different versions of six, tornado, ipython, notebook, ipykernel). File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise Configurables, whose aliases are listed on the help line. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend_init_.py", line 40, in [I 19:46:31.318 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). raise value It keeps saying that the kernel not found or was deleted. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise Just upgrade your tornado version by using this command in conda environment -. hi @kevin-bates can you please help me out? [I 2022-05-21 20:16:39.872 LabApp] JupyterLab application directory is /Users/lgouda/opt/anaconda3/share/jupyter/lab How to make IPython notebook matplotlib plot inline, Jupyter notebook keeps reconnecting to kernel, Jupyter Notebook is not connecting with Kernel, can't open new notebook with particular kernel, Connection to the Jupyter Notebook Server could not be established, Jupyter Notebook Kernel Not Connecting: Connection Failed (while Jupyter kernel connection works in Visual Studio Code). from zmq import backend Arguments that take values are actually convenience aliases to full File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise [D 17:16:00.767 NotebookApp] 304 GET /api/kernelspecs (172.16.48.232) 398.96ms [W 13:27:46.758 NotebookApp] Notebook Untitled.ipynb is not trusted File "/Users/lgouda/opt/anaconda3/lib/python3.9/threading.py", line 910, in run File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\ipykernel_init.py", line 2, in [I 2022-10-14 13:28:24.202 ServerApp] nbclassic | extension was successfully linked. Just for further documentation, i found this is a common issue many people are reporting recently. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\runpy.py", line 85, in run_code [W 2022-10-14 13:29:36.596 ServerApp] Timeout waiting for kernel_info reply from 0c7e8334-2d31-41b8-97d0-2d8efa8d9630 import zmq Did you mean one of: extra_template_paths, template_name, template_paths? [D 21:04:47.965 NotebookApp] Using contents: services/contents import (constants, error, message, context, Traceback (most recent call last): [D 19:47:26.178 NotebookApp] Paths used for configuration of common: How can we cool a computer connected on top of or within a human brain? from .connect import * /Users/lgouda/opt/anaconda3/etc/jupyter/jupyter_notebook_config.d/jupyterlab.json [D 21:03:46.592 NotebookApp] 200 GET /notebooks/test_dir/rdkit.ipynb (172.16.48.232) 387.11ms For this tutorial we will be using py you can use any environment you are comfortable with, it doesn't necessarily have to be py just make sure to replace mine with yours while running the command. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\select.py", line 28, in select_backend [D 17:16:48.138 NotebookApp] Paths used for configuration of notebook: Sorry youre having trouble! ImportError: DLL load failed: The specified module could not be found. not nested and not items)) [W 13:17:10.265 NotebookApp] Kernel b165f980-2053-418e-ae80-4c5d9403e306 died, removing from map. Hmm - that directory listing looks ok. Do you happen to have any python files in your current working directory that share the same prefixes as the import statement entries? exec(code, run_globals) from zmq import backend ns = select_backend(first) p = _parse_sub(source, state, sub_verbose, nested + 1) File "C:\ProgramData\Anaconda3\lib\site-packages\ipykernel\ipkernel.py", line 68, in init (Update: I found out that the new notebooks are connecting to kernel until an old notebook is opened. Hi I also have the same problem. Notebook is working fine now. [D 19:48:35.495 NotebookApp] Using contents: services/contents I run the Jupiter notebook on anaconda but the only thing that happen is appearing [*] near the code lines and I can see the error "Kernel busy" or "no connection to kernel". File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\runpy.py", line 87, in run_code [W 13:27:42.908 NotebookApp] Config option template_path not recognized by LenvsTocHTMLExporter. to your account. from ipykernel import kernelapp as app /Users/lgouda/.jupyter/nbconfig/tree.json There might be relevant details there: https://discourse.jupyter.org/t/connection-to-the-notebook-server-could-not-be-established/10263/4. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_init.py", line 2, in File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\runpy.py", line 87, in run_code Already on GitHub? Funny to see an update on tornado wrecking havoc ;^), Thank you for the suggestion, I'm having the same problem and downgrading tornado fixed the problem. [I 2021-10-27 08:53:30.819 LabApp] JupyterLab application directory is C:\Users\jamil\anaconda3\share\jupyter\lab [W 21:03:42.408 NotebookApp] Collisions detected in /root/.jupyter/jupyter_notebook_config.py and /root/.jupyter/jupyter_notebook_config.json config files. [W 19:49:35.382 NotebookApp] 404 GET /api/kernels/b8710be7-c12c-44a5-a501-84bede249224/channels?session_id=1a5b662a117e47d981bb76f1f6fefc12 (::1): Kernel does not exist: b8710be7-c12c-44a5-a501-84bede249224 File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise [D 17:16:48.603 NotebookApp] Starting kernel: ['/root/anaconda3/envs/my-rdkit-env/bin/python', '-m', 'ipykernel_launcher', '-f', '/root/.local/share/jupyter/runtime/kernel-f4d9a8b3-ef52-4c5b-b675-82ec5c8d3669.json'] I have finally been able to install Julia and IJulia without precompile errors on the host computer in spite of Julia's best efforts. The detail please refer to, As its currently written, your answer is unclear. Did you mean one of: extra_template_paths, template_name, template_paths? Making statements based on opinion; back them up with references or personal experience. I had the same issue where the kernel would simply not connect. yet so far I donot see the problem and it has been an hr. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\select.py", line 28, in select_backend [I 14:48:41.774 NotebookApp] KernelRestarter: restarting kernel (1/5), new random ports /Users/lgouda/.local/etc/jupyter/nbconfig/common.json Powered by Discourse, best viewed with JavaScript enabled, Suddenly "no connection to Kernel" Windows. [W 13:27:42.208 NotebookApp] Config option template_path not recognized by ExporterCollapsibleHeadings. Traceback (most recent call last): [D 21:03:42.406 NotebookApp] Looking for jupyter_notebook_config in /etc/jupyter File "c:\Users\stephen.bonacci.vscode\extensions\ms-python.python-2022.16.1\pythonFiles\lib\python\debugpy\launcher/../..\debugpy\common\messaging.py", line 19, in Hi @mikekwabs - please see this comment relative to the other issue you commented. ns = select_backend(first) [I 08:53:30.834 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). If the above does not work for you then this is highly recommended. /root/.jupyter/jupyter_notebook_config.json has higher priority: { mod = import(name, fromlist=public_api) [I 17:15:16.494 NotebookApp] Serving notebooks from local directory: /Users/sidodalpozzolo [W 13:27:43.269 NotebookApp] Config option template_path not recognized by LenvsLatexExporter. ImportError: cannot import name 'constants' from partially initialized module 'zmq.backend.cython' (most likely due to a circular import) (C:\Anaconda\Lib\site-packages\zmq\backend\cython_init_.py) [D 21:03:47.695 NotebookApp] Initializing websocket connection /api/kernels/425ab218-76c9-4bb0-b6e2-fb3b90565c03/channels [I 18:45:07.693 NotebookApp] Jupyter Notebook 6.1.4 is running at: Christian Science Monitor: a socially acceptable source among conservative Christians? [W 08:54:45.372 NotebookApp] 404 GET /api/kernels/141bcf3c-2e22-45aa-a0cf-5a6e91946b02/channels?session_id=8e34707500254cf68e9a67a6a7157d43 (::1) 23.980000ms referer=None code = _escape(source, this, state) You need to repeat the pyzmq installation - which can be a little finicky based on past support experiences. [D 21:03:46.734 NotebookApp] Path custom.css served from /root/anaconda3/envs/test/lib/python3.6/site-packages/notebook/static/custom/custom.css File "C:\Anaconda\Lib\site-packages\zmq\backend\select.py", line 28, in select_backend [D 19:49:31.491 NotebookApp] 200 GET /api/contents/Python%20Codes.ipynb?content=0&=1653187646115 (::1) 4.030000ms (172.16.48.232) 98.36ms mod = import(name, fromlist=public_api) What does "you better" mean in this context of conversation? File "C:\Users\jsdha\anaconda3\envs\py3tf2.0\lib\site-packages\ipykernel\kernelapp.py", line 257, in init_connection_file To learn more, see our tips on writing great answers. "main", mod_spec) File "C:\Anaconda\Lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise return run_code(code, main_globals, None, /root/anaconda3/envs/my-rdkit-env/etc/jupyter/jupyter_notebook_config.json File "C:\Anaconda\Lib\site-packages\zmq\backend_init_.py", line 27, in Did you mean one of: extra_template_paths, template_name, template_paths? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq_init_.py", line 50, in "main", mod_spec) [D 21:03:42.405 NotebookApp] Looking for jupyter_config in /root/anaconda3/envs/test/etc/jupyter json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0) p = sre_parse.parse(p, flags) Just like @kevin-bates mentioned. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client_init.py", line 4, in [D 21:03:47.698 NotebookApp] Requesting kernel info from 425ab218-76c9-4bb0-b6e2-fb3b90565c03 File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend_init_.py", line 27, in [D 21:03:47.109 NotebookApp] 200 GET /api/contents/test_dir/rdkit.ipynb?type=notebook&=1572930234465 (172.16.48.232) 22.58ms from .connect import * ImportError: DLL load failed: The specified module could not be found. The session has been removed. File "C:\Anaconda\Lib\site-packages\zmq\backend\cython_init.py", line 6, in import jupyter_client How do I use the Schwartzschild metric to calculate space curvature and time curvature seperately? from ipykernel import kernelapp as app File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend_init_.py", line 27, in [W 15:39:51.179 NotebookApp] KernelRestarter: restart failed File "C:\ProgramData\Anaconda3\lib\sre_parse.py", line 420, in _parse_sub Not the answer you're looking for? JupyterLab will continue trying to reconnect. Attaching Ethernet interface to an SoC which has no embedded Ethernet circuit, Books in which disembodied brains in blue fluid try to enslave humanity. AttributeError: partially initialized module 'string' has no attribute 'ascii_letters' (most likely due to a circular import). [D 19:47:26.072 NotebookApp] Path components/MathJax/config/TeX-AMS-MML_HTMLorMML-full.js served from /Users/lgouda/opt/anaconda3/lib/python3.9/site-packages/notebook/static/components/MathJax/config/TeX-AMS-MML_HTMLorMML-full.js File "C:\ProgramData\Anaconda3\lib\re.py", line 234, in compile When we create kernels, we can link it to our virtual environment. `. I just noticed this as the kernel would initiate automatically before. from .connect import * from ipykernel import kernelapp as app File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel\connect.py", line 18, in [I 13:18:29.272 NotebookApp] Saving file at /Untitled.ipynb Double-sided tape maybe? from . /root/anaconda3/envs/my-rdkit-env/etc/jupyter/nbconfig/notebook.d/widgetsnbextension.json File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client_init.py", line 4, in inst = cls(args, **kwargs) raise value from . Traceback (most recent call last): import jupyter_client ImportError: DLL load failed: The specified module could not be found. I am facing the same issue:- A connection to the notebook server cannot be established. import zmq return _compile(pattern, flags) import jupyter_client round some security block. [I 18:45:07.690 NotebookApp] JupyterLab extension loaded from /Users/sidodalpozzolo/opt/anaconda3/lib/python3.8/site-packages/jupyterlab exec(code, run_globals) File "/Users/lgouda/opt/anaconda3/lib/python3.9/site-packages/notebook/notebookapp.py", line 2300, in Since you're on Windows I'm not sure how helpful I can be - especially if the manual invocation step is leading you down the wrong path. Glad we could all figure it out! File "c:\users\kimish.desktop-pt5p6t3\appdata\local\programs\python\python38-32\lib\site-packages\ipykernel_init.py", line 2, in File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\runpy.py", line 194, in run_module_as_main from .connect import * "main", mod_spec) File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend_init_.py", line 40, in Traceback (most recent call last): like above errors Rename this file to something else, e.g. [D 19:48:30.159 NotebookApp] Using contents: services/contents ns = select_backend(first) File "C:\Users\jsdha\anaconda3\envs\py3tf2.0\lib\json_init.py", line 293, in load So ipykernel is basically a way to connect and manage all of the different kernels. By clicking Sign up for GitHub, you agree to our terms of service and [I 19:47:19.185 NotebookApp] 302 GET /?token=67847a24b1cd9dc07059177d26669194deee2b0a7ae614c2 (::1) 2.810000ms File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq_init_.py", line 50, in [W 15:38:35.136 NotebookApp] Replacing stale connection: 141bcf3c-2e22-45aa-a0cf-5a6e91946b02:8e34707500254cf68e9a67a6a7157d43 Open cmd and write the following I ran into the same problem today. (base) sidodalpozzolo@MBP-di-Sido ~ % jupyter notebook [W 15:39:03.437 NotebookApp] Kernel '141bcf3c-2e22-45aa-a0cf-5a6e91946b02' appears to have been culled or died unexpectedly, invalidating session '0fba7802-0fe1-424d-a0ac-a72bad284612'. from . But this was solved by moving the required file to my working directory. self.init_magics() from ipykernel import kernelapp as app File "C:\Anaconda\Lib\site-packages\jupyter_client_init.py", line 4, in tornado-6.0.4. stop File "C:\Users\jamil\anaconda3\envs\gpu2\lib\runpy.py", line 193, in run_module_as_main return run_code(code, main_globals, None, "main", mod_spec) [IPKernelApp] ERROR | Failed to load connection file: 'C:\Users\jsdha\AppData\Roaming\jupyter\runtime\kernel-83d946a1-b7d0-468e-a149-394af4731e84.json' Thanks. So you are suggesting pyzmq uninstall/reinstall. Asking for help, clarification, or responding to other answers. Did you mean one of: extra_template_paths, template_name, template_paths? Traceback (most recent call last): self.init_kernel() from .connect import * [D 17:16:00.781 NotebookApp] 200 GET /api/terminals?=1572916567938 (172.16.48.232) 1.06ms For Anaconda users, replace, I had a similar problem. p = sre_parse.parse(p, flags) [D 17:14:33.068 NotebookApp] Loaded config file: /root/.jupyter/jupyter_notebook_config.py File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel\connect.py", line 18, in File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend_init_.py", line 27, in from ipykernel import kernelapp as app raise value File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\runpy.py", line 87, in run_code from . [D 19:47:26.056 NotebookApp] 200 GET /static/components/MathJax/MathJax.js?config=TeX-AMS-MML_HTMLorMML-full,Safe&delayStartupUntil=configured (::1) 1.670000ms File "C:\Users\jamil\anaconda3\envs\gpu2\lib\runpy.py", line 85, in run_code File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend_init_.py", line 40, in Why does awk -F work for most letters, but not for the letter "t"? [I 15:39:39.108 NotebookApp] KernelRestarter: restarting kernel (1/5), new random ports Now open the jupyter and select the "my_env" from Kernel option. return method(app, *args, **kwargs) [W 19:49:02.571 NotebookApp] 404 GET /api/kernels/b8710be7-c12c-44a5-a501-84bede249224/channels?session_id=1a5b662a117e47d981bb76f1f6fefc12 (::1): Kernel does not exist: b8710be7-c12c-44a5-a501-84bede249224 At first, it seemed kernel was connecting with a new notebook but after some time kernel was connecting in a new notebook. This walkthrough shows you why . jupyter notebook C:\Users\PC02\AppData\Roaming\Python\Python37\site-packages\notebook\base\zmqhandlers.py:292: RuntimeWarning: coroutine 'WebSocketHandler.get' was never awaited [D 19:47:19.386 NotebookApp] Path custom.js served from /Users/lgouda/opt/anaconda3/lib/python3.9/site-packages/notebook/static/custom/custom.js Then, I fresh installed anaconda and still the problem stays. "main", mod_spec) File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq_init.py", line 50, in [W 14:13:14.114 NotebookApp] KernelRestarter: restart failed return loads(fp.read(), During handling of the above exception, another exception occurred: Traceback (most recent call last): File "C:\Users\jamil\anaconda3\envs\gpu2\lib\runpy.py", line 85, in run_code Find centralized, trusted content and collaborate around the technologies you use most. [D 17:16:47.752 NotebookApp] Path components/MathJax/MathJax.js served from /root/anaconda3/envs/my-rdkit-env/lib/python3.6/site-packages/notebook/static/components/MathJax/MathJax.js File "C:\ProgramData\Anaconda3\lib\runpy.py", line 85, in _run_code Anaconda: 4.7.12 [W 13:28:50.498 NotebookApp] Timeout waiting for kernel_info reply from 330a6583-0b2d-42b1-aa67-c95a50c19e80 File "c:\Users\stephen.bonacci.vscode\extensions\ms-python.python-2022.16.1\pythonFiles\lib\python\debugpy\launcher/../..\debugpy\launcher\debuggee.py", line 15, in [I 14:48:25.129 NotebookApp] JupyterLab application directory is c:\users\kimish.desktop-pt5p6t3\appdata\local\programs\python\python38-32\share\jupyter\lab [D 19:47:26.055 NotebookApp] Path components/MathJax/MathJax.js served from /Users/lgouda/opt/anaconda3/lib/python3.9/site-packages/notebook/static/components/MathJax/MathJax.js Be sure to update your config before our next release. from . File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client\connect.py", line 21, in After days of looking for solution. That's the one that solved for me too. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq_init_.py", line 50, in /etc/jupyter/nbconfig/notebook.json return run_code(code, main_globals, None, Have reinstalled Anaconda, jupyter notebook repeatedly. [D 19:47:26.086 NotebookApp] 200 GET /static/components/MathJax/config/Safe.js?V=2.7.9 (::1) 1.120000ms File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq_init_.py", line 50, in [D 17:16:48.147 NotebookApp] Paths used for configuration of common: [I 19:47:35.357 NotebookApp] KernelRestarter: restarting kernel (3/5), new random ports File "C:\ProgramData\Anaconda3\lib\sre_parse.py", line 420, in _parse_sub [D 21:03:47.475 NotebookApp] Path components/MathJax/extensions/Safe.js served from /root/anaconda3/envs/test/lib/python3.6/site-packages/notebook/static/components/MathJax/extensions/Safe.js [D 19:47:19.228 NotebookApp] Path components/react/react-dom.production.min.js served from /Users/lgouda/opt/anaconda3/lib/python3.9/site-packages/notebook/static/components/react/react-dom.production.min.js There is a likelihood that you've updated Tornado to 6.0.0 recently. /root/anaconda3/envs/test/etc/jupyter/jupyter_notebook_config.d/jupyterlab.json main() [I 2022-10-14 13:28:24.313 ServerApp] The port 8888 is already in use, trying another port. /Users/lgouda/opt/anaconda3/etc/jupyter/nbconfig/tree.json [D 21:03:46.327 NotebookApp] Path base/images/logo.png served from /root/anaconda3/envs/test/lib/python3.6/site-packages/notebook/static/base/images/logo.png Im sure youre wondering, what is ipykernel? [W 05:37:41.870 NotebookApp] Kernel 83d946a1-b7d0-468e-a149-394af4731e84 died, removing from map. [D 19:47:19.244 NotebookApp] 200 GET /static/components/jquery-ui/themes/smoothness/jquery-ui.min.css?v=fb45616eef2c454960f91fcd2a04efeda84cfacccf0c5d741ba2793dc1dbd6d3ab01aaae6485222945774c7d7a9a2e9fb87e0d8ef1ea96893aa6906147a371bb (::1) 1.190000ms self.init_magics() File "C:\ProgramData\Anaconda3\lib\site-packages\traitlets\config\application.py", line 87, in catch_config_error raise source.error("incomplete escape %s" % escape, len(escape)) self.load_connection_file() Choices: ['tcp', 'ipc'] Do you have some kind of internet security software on your computer? File "C:\Users\user\AppData\Local\Programs\Python\Python39\lib\runpy.py", line 87, in run_code You'll even see that the prompt history number should be the next number. [D 21:03:46.326 NotebookApp] Path components/create-react-class/index.js served from /root/anaconda3/envs/test/lib/python3.6/site-packages/notebook/static/components/create-react-class/index.js [W 2022-10-14 13:28:49.915 ServerApp] AsyncIOLoopKernelRestarter: restart failed from ipykernel import kernelapp as app File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_init.py", line 2, in from zmq import backend File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_launcher.py", line 15, in @Carl Neely Welcome to Microsoft Q&A, Thanks for posting your query here! File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend\select.py", line 28, in select_backend [D 19:47:19.293 NotebookApp] 200 GET /static/services/contents.js?v=20220521194630 (::1) 1.150000ms raise JSONDecodeError("Expecting value", s, err.value) from None I would start here: https://www.google.com/search?q=irkernel+dyld%3A+Library+not+loaded%3A+%40rpath%2Flibreadline.6.2.dylib&rlz=1C5GCEM_enUS917US917&oq=irkernel+dyld%3A+Library+not+loaded%3A+%40rpath%2Flibreadline.6.2.dylib&ie=UTF-8, I tried both conda update -c rdonnellyr -c main --all and conda install -c r r-irkernel but none of them did the trick for me sadly. import _socket A tool used to create, develop and share files that contain live codes, visualizations, and narrative texts. import zmq self.stream.close() Reason: image not found from debugpy.common import log, messaging inst = cls(args, **kwargs) Since 'email' is a standard module, so I need to name my 'email.py' as another name, such as 'play_email.py', as long as the new name is different from any standard module name. File "C:\Anaconda\Lib\site-packages\zmq\backend\select.py", line 28, in select_backend [D 19:47:19.247 NotebookApp] 200 GET /static/style/style.min.css?v=b092d0a2da5df36f2b073ddb4eafcd6c8094c4fa21b6dcd3f7185ce16c04ad66424083d785b81607a26b4b85b69a560574ada7db75262c886655f99d651c482e (::1) 1.660000ms [W 17:15:37.666 NotebookApp] KernelRestarter: restart failed "main", mod_spec) File "C:\Anaconda\Lib\site-packages\ipykernel\connect.py", line 18, in On the terminal i see: [W 14:43:12.078 NotebookApp] Nudge: attempt 10 on kernel xxx. Collecting package metadata (current_repodata.json): done from IPython.core.profiledir import ProfileDir [W 13:16:55.594 NotebookApp] Config option template_path not recognized by LenvsHTMLExporter. obj, end = self.raw_decode(s, idx=w(s, 0).end()) I do most of my development and analysis on my e:drive, under the folder linux. [D 19:47:27.306 NotebookApp] Path base/images/favicon-busy-1.ico served from /Users/lgouda/opt/anaconda3/lib/python3.9/site-packages/notebook/static/base/images/favicon-busy-1.ico super(ZMQInteractiveShell, self).init_magics() ns = select_backend(first) --no-mathjax mod = import(name, fromlist=public_api) [D 21:03:42.407 NotebookApp] Looking for jupyter_notebook_config in /root/.jupyter [I 17:14:33.495 NotebookApp] [nb_conda_kernels] enabled, 3 kernels found Note if I try to open another Juypter window while the 1st one is still opened seems all socket are used. Using tornado==5.1.1 installed by conda did not solve the issue for me though. /Users/lgouda/opt/anaconda3/etc/jupyter/jupyter_notebook_config.json ***> wrote: [I 14:48:38.797 NotebookApp] Kernel started: 34ab8f86-f841-4692-bd38-04bce7ecfdf4 reraise(*exc_info) File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend_init_.py", line 27, in File "c:\users\kimish.desktop-pt5p6t3\appdata\local\programs\python\python38-32\lib\site-packages\IPython\core\application.py", line 18, in self.execre = re.compile(r'(.). Jupyter Notebook - Cannot Connect to Kernel, https://groups.google.com/g/jupyter/c/TZwqNstDBRs, Flake it till you make it: how to detect and deal with flaky tests (Ep. If so, you can use that to experiment. In my case, I just updated my jupyter and it worked. File "C:\Users\jsdha\anaconda3\envs\py3tf2.0\lib\runpy.py", line 87, in run_code There is something ipykernel which I have installed by using pip install ipykernel but again nothing happens. /usr/local/etc/jupyter/nbconfig/notebook.json File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_launcher.py", line 15, in raise value To correct this matter, can you please provide explicit, step by step instructions on how to review. [W 07:58:48.124 NotebookApp] Replacing stale connection: 141bcf3c-2e22-45aa-a0cf-5a6e91946b02:8e34707500254cf68e9a67a6a7157d43 File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_init.py", line 2, in [W 21:04:47.983 NotebookApp] 404 GET /api/kernels/db32acf9-77e3-4467-b93a-38b8ec9f324e/channels?session_id=b5280c24342b49a6a515b1df07a9bdb9 (172.16.48.232) 22.24ms referer=None, thank u for your reply, i changed a env still get this error, Jupyter notebook not connecting to kernel in virtual environment. Thanks @kevin-bates ! [D 19:47:26.046 NotebookApp] 200 GET /notebooks/Python%20Codes.ipynb (::1) 529.110000ms [C 18:45:07.698 NotebookApp], [I 18:45:11.695 NotebookApp] Creating new notebook in from . What I know is that the issue appeared as soon as I had updated tornado with the latest version. @ana1239 Any errors happening in terminal? A connection to the Jupyter server could not be established. [W 2022-10-14 13:28:49.915 ServerApp] Kernel 0c7e8334-2d31-41b8-97d0-2d8efa8d9630 died, removing from map. File "c:\users\kimish.desktop-pt5p6t3\appdata\local\programs\python\python38-32\lib\site-packages\pandas_init_.py", line 180, in [I 18:45:07.693 NotebookApp] or http://127.0.0.1:8889/?token=be6849f2b18ec614cbc092dcdcb169a03f2d0d3998a4b8b1 [C 13:11:57.574 NotebookApp], [I 13:16:19.524 NotebookApp] Creating new notebook in [W 13:27:39.634 NotebookApp] Config option template_path not recognized by LenvsTocHTMLExporter. [C 13:43:21.030 NotebookApp]. Copyright (C) Microsoft Corporation. [I 17:15:16.494 NotebookApp] Jupyter Notebook 6.1.4 is running at: pip install tornado==5.1.1 fixed this. File "C:\Anaconda\Lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise File "C:\Users\jamil\anaconda3\envs\gpu2\lib\runpy.py", line 85, in run_code @xh22 - thank you for the complete console. from .connect import * from .connect import * /usr/local/etc/jupyter/nbconfig/tree.json Screen shots help too. Asking for help, clarification, or responding to other answers. File "C:\ProgramData\Anaconda3\lib\sre_parse.py", line 369, in _escape File "C:\Users\kimish.DESKTOP-PT5P6T3\string.py", line 1, in [D 21:04:47.703 NotebookApp] Connecting to: tcp://:39586 My compute is running but I cannot connect to any of the kernel. File "C:\Users\user\AppData\Local\Programs\Python\Python39\lib\runpy.py", line 197, in run_module_as_main First story where the hero/MC trains a defenseless village against raiders. File "C:\Anaconda\Lib\site-packages\zmq\backend_init_.py", line 27, in File "/Users/lgouda/opt/anaconda3/lib/python3.9/threading.py", line 910, in run mod = import(name, fromlist=public_api) Incase only adjusting those would have solved. rc = osapipe.close() Traceback (most recent call last): open_result = handler.open(*handler.open_args, **handler.open_kwargs) [D 19:47:26.178 NotebookApp] Paths used for configuration of common: [D 17:16:00.778 NotebookApp] Path nb_conda/tree.js served from /root/anaconda3/envs/my-rdkit-env/share/jupyter/nbextensions/nb_conda/tree.js File "C:\Anaconda\Lib\site-packages\jupyter_client\connect.py", line 21, in In my case, I just updated my jupyter and it worked. [W 13:16:52.079 NotebookApp] Config option template_path not recognized by LenvsTocHTMLExporter. from .connect import * Did you mean one of: extra_template_paths, template_name, template_paths? raise value import jupyter_client import zmq raise value [D 19:47:26.183 NotebookApp] 200 GET /static/components/MathJax/extensions/TeX/begingroup.js?V=2.7.9 (::1) 1.270000ms NumExpr defaulting to 8 threads. [D 21:03:47.040 NotebookApp] Paths used for configuration of common: [I 15:39:48.174 NotebookApp] KernelRestarter: restarting kernel (4/5), new random ports [W 13:16:24.648 NotebookApp] Config option template_path not recognized by LenvsHTMLExporter. [I 05:37:32.847 NotebookApp] KernelRestarter: restarting kernel (2/5), new random ports from ipykernel import kernelapp as app There was a broken symbol where usually python 3 is labelled No connection to Kernel and an orange connecting to kernel badge next to Trusted. import zmq Thanks. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\runpy.py", line 193, in run_module_as_main At least it is an easy fix! [W 08:54:45.348 NotebookApp] 404 GET /api/kernels/141bcf3c-2e22-45aa-a0cf-5a6e91946b02/channels?session_id=8e34707500254cf68e9a67a6a7157d43 (::1): Kernel does not exist: 141bcf3c-2e22-45aa-a0cf-5a6e91946b02 . from .connect import *
Andrew Dismukes Parents, Nicias' Definition Of Courage, Articles N