Google Colab local runtime connecting error - python

I want to connect Google Colab to my local jupyter runtime. I installed the below extension as suggested by colab.
pip install --upgrade jupyter_http_over_ws>=0.0.7 && jupyter serverextension enable --py jupyter_http_over_ws
Then I run the command and started a jupyter notebook. After that I try to connect google colab to the local runtime with the prompted URL. But then I got the follow issue. Please help me to solve this.
F:\Education\SEMESTER 7\CO421 FINAL YEAR PROJECT\PROJECT\josh>jupyter notebook --NotebookApp.allow_origin='https://colab.research.google.com'--port=8888 --NotebookApp.port_retries=0
jupyter_http_over_ws extension initialized. Listening on /http_over_websocket
[I 12:01:45.043 NotebookApp] Serving notebooks from local directory: F:\Education\SEMESTER 7\CO421 FINAL YEAR PROJECT\PROJECT\josh
[I 12:01:45.043 NotebookApp] Jupyter Notebook 6.1.4 is running at:
[I 12:01:45.043 NotebookApp] http://localhost:8888/?token=9308f0fdb2a8ebe003eec56aa2684dfb7c51c873ba0d9214
[I 12:01:45.043 NotebookApp] or http://127.0.0.1:8888/?token=9308f0fdb2a8ebe003eec56aa2684dfb7c51c873ba0d9214
[I 12:01:45.043 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 12:01:45.125 NotebookApp]
To access the notebook, open this file in a browser:
file:///C:/Users/prasa/AppData/Roaming/jupyter/runtime/nbserver-6268-open.html
Or copy and paste one of these URLs:
http://localhost:8888/?token=9308f0fdb2a8ebe003eec56aa2684dfb7c51c873ba0d9214
or http://127.0.0.1:8888/?token=9308f0fdb2a8ebe003eec56aa2684dfb7c51c873ba0d9214
[W 12:02:15.646 NotebookApp] Blocking Cross Origin API request for /http_over_websocket. Origin: https://colab.research.google.com, Host: localhost:8888
[W 12:02:15.647 NotebookApp] 403 GET /http_over_websocket?min_version=0.0.7&jupyter_http_over_ws_auth_url=http%3A%2F%2Flocalhost%3A8888%2F%3Ftoken%3D5d6bb0b08b718df4fMUpVa4LvtUpaHGkcUqPkMpyiaoG8817 (::1) 2.99ms referer=None

Related

Cannot connect to Jupyter Notebook localhost

I have been struggling with this problem the last few days. I am running Manjaro Linux on my laptop and I have recently installed Jupyter Notebook and Jupyterlab using pip.
However, when I try to run it, I get the following output:
[I 2021-05-20 16:21:19.980 LabApp] JupyterLab extension loaded from /usr/lib/python3.9/site-packages/jupyterlab
[I 2021-05-20 16:21:19.980 LabApp] JupyterLab application directory is /usr/share/jupyter/lab
[I 16:21:20.005 NotebookApp] Serving notebooks from local directory: /home/veducha
[I 16:21:20.005 NotebookApp] Jupyter Notebook 6.4.0 is running at:
[I 16:21:20.005 NotebookApp] http://localhost:8888/?token=ffd911982ac39542bc13b182354204b7caec5b86dc5ffad4
[I 16:21:20.005 NotebookApp] or http://127.0.0.1:8888/?token=ffd911982ac39542bc13b182354204b7caec5b86dc5ffad4
[I 16:21:20.005 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 16:21:20.056 NotebookApp]
To access the notebook, open this file in a browser:
file:///home/veducha/.local/share/jupyter/runtime/nbserver-72176-open.html
Or copy and paste one of these URLs:
http://localhost:8888/?token=ffd911982ac39542bc13b182354204b7caec5b86dc5ffad4
or http://127.0.0.1:8888/?token=ffd911982ac39542bc13b182354204b7caec5b86dc5ffad4
followed by a tab opening on my browser saying that it is unable to connect to the localhost.
I have tried different using browsers, and some of the answers given in other posts (downgrading tornado, for example) do not seem to work since now you're required to have the latest version of tornado.
Can anyone please help me?
Thanks,
E.

Can not open jupyter notebook in localhost in ubuntu

I didn't run jupyter notebook for a long time, Today when I try to launch to notebook , I can't run it and I encountered this:
[I 19:05:29.939 NotebookApp] 0 active kernels
[I 19:05:29.939 NotebookApp] The Jupyter Notebook is running at:
[I 19:05:29.939 NotebookApp] http://localhost:9999/
[I 19:05:29.939 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
Opening in existing browser session.
Then can not open in browser. I looked up other similar question but I didn't find to solution.

Jupyter on docker cannot automatically open up browser when it executed

I've had docker to use the jupyter notebook with tensorflow.
(My OS is window 10 so I use the Powershell.)
I want the jupyter to open the web browser automatically. When I try to initialize jupyter notebook.
For instance, I enter the command to start anaconda image (including tensorflow).
> docker run -it -v ~/tensorwork:/notebooks -p 8888:8888 anaconda3
And activate tensorflow
(base) root#e088a0e0e58e:/# conda activate tensorflow
After entering tensorflow kernel mode, I execute jupyter notebook.
(tensorflow) root#e088a0e0e58e:/# jupyter notebook --ip '*' --allow-root
[I 14:47:00.827 NotebookApp] [nb_conda_kernels] enabled, 4 kernels found
[W 14:47:01.080 NotebookApp] WARNING: The notebook server is listening on all IP addresses and not using encryption. This is not recommended.
[I 14:47:01.214 NotebookApp] [nb_anacondacloud] enabled
[I 14:47:01.219 NotebookApp] [nb_conda] enabled
[I 14:47:01.265 NotebookApp] ✓ nbpresent HTML export ENABLED
[W 14:47:01.265 NotebookApp] ✗ nbpresent PDF export DISABLED: No module named 'nbbrowserpdf'
[I 14:47:01.268 NotebookApp] Serving notebooks from local directory: /
[I 14:47:01.269 NotebookApp] 0 active kernels
[I 14:47:01.269 NotebookApp] The Jupyter Notebook is running at:
[I 14:47:01.269 NotebookApp] http://[all ip addresses on your system]:8888/?token=55d0e39e50ff64ca52ab43516d06c96127704fb56de2d356
[I 14:47:01.269 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[W 14:47:01.270 NotebookApp] No web browser found: could not locate runnable browser.
[C 14:47:01.275 NotebookApp]
Copy/paste this URL into your browser when you connect for the first time,
to login with a token:
http://localhost:8888/?token=55d0e39e50ff64ca52ab43516d06c96127704fb56de2d356
Execution of the jupyter notebook works well.
However, I manually enter the URL my browser to enter the notebook.
I guess this problem came from docker's feature. The container's file path needs to be connected to the local host so that jupyter can find the default web browser(chrome) that I use.
But how can I make it possible? I've already tried the editing config of jupyter notebook.
Before I execute jupyter notebook, I enter the command as following:
jupyter notebook --generate-config
vim ~/.jupyter/jupyter_notebook_config.py # or use your favorite editor
c.NotebookApp.browser = u'chrome'
(refer ; https://groups.google.com/a/continuum.io/forum/#!topic/anaconda/oXjbKNMyP30)
But the jupyter still said it cannot find any web browser. Help me please :)

Jupyter Notebook is not being opened in windows using Anaconda Prompt?

1) I tried to open Jupyter Notebook in Anaconda prompt.
Ananconda Prompt:
(C:\Users\sankarreddy\Anaconda3) C:\Users\sankarreddy>jupyter notebook
[I 21:24:52.854 NotebookApp] Serving notebooks from local directory: C:\Users\sankarreddy
[I 21:24:52.855 NotebookApp] 0 active kernels
[I 21:24:52.856 NotebookApp] The Jupyter Notebook is running at: http://localhost:8888/?token=fb39c20421e31cc66fddfd4fc00c7f64b8003bc53b83f461
[I 21:24:52.856 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
[C 21:24:52.868 NotebookApp]
Copy/paste this URL into your browser when you connect for the first time,
to login with a token:
http://localhost:8888/?token=fb39c20421e31cc66fddfd4fc00c7f64b8003bc53b83f461
2) My default browser is Google chrome and every time when I try to open the Jupyter notebook, the following is the result.
Result in the Browser(Google Chrome):
ERROR: Gateway Timeout
While trying to retrieve the URL http://localhost:8888/tree?token=4f3786890eceb91493af9bd6f4b07ae1ac6888c6172bbfca:
Connection refused
Your cache administrator is webmaster.
Generated Sun, 23 Jul 2017 14:01:21 GMT by 103.217.212.129 (Mikrotik HttpProxy)
3) I interrupted the process using 'Ctrl+C'.. it displays as follows.
[I 19:43:23.364 NotebookApp] Interrupted...
[I 19:43:23.365 NotebookApp] Shutting down kernels
I have googled about this issue, but had very little help which is of no use.
It seems like you're trying to open Jupyter Notebook in port 8888 as stated by the error message While trying to retrieve the URL http://localhost:8888/tree?token=4f3786890eceb91493af9bd6f4b07ae1ac6888c6172bbfca
But, when running Jupyter Notebook, there was an error message stating something else is running in port 8888 and it started the server in the next available port, which is 8889: [I 19:26:39.239 NotebookApp] The Jupyter Notebook is running at: http://localhos t:8889/?token=86664b50ba28f3bd3431554bc84d60d8bf4f3bf4209a4ecf
I'm not sure how to identify what is running on 8888, but you should definitely access your Jupyter Notebook on localhost:8889 .

IPython kernel dies on startup

I am running Ubuntu 64-bit and using IPython from the Anaconda distribution. When I type "ipython notebook" in terminal, everything starts up as it should. But when I create a new notebook, or open an existing one, the kernel dies, tries to restart, and fails.
Here is the info from terminal for the entire session, with the errors:
[W 08:54:43.010 NotebookApp] ipywidgets package not installed. Widgets are unavailable.
[I 08:54:43.018 NotebookApp] Serving notebooks from local directory: /home/eric
[I 08:54:43.018 NotebookApp] 0 active kernels
[I 08:54:43.018 NotebookApp] The IPython Notebook is running at: http://localhost:8888/
[I 08:54:43.018 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).
Created new window in existing browser session.
[I 08:54:47.720 NotebookApp] Creating new notebook in
[W 08:54:48.468 NotebookApp] 404 GET /nbextensions/widgets/notebook/js/extension.js?v=20150825085443 (127.0.0.1) 5.44ms referer=http://localhost:8888/notebooks/Untitled2.ipynb?kernel_name=python2
[I 08:54:48.529 NotebookApp] Kernel started: e595c923-cc96-4ab7-ae39-d2fe4eac1261
[I 08:54:51.531 NotebookApp] KernelRestarter: restarting kernel (1/5)
[W 08:54:58.554 NotebookApp] Timeout waiting for kernel_info reply from e595c923-cc96-4ab7-ae39-d2fe4eac1261
[I 08:55:00.535 NotebookApp] KernelRestarter: restarting kernel (1/5)
WARNING:root:kernel e595c923-cc96-4ab7-ae39-d2fe4eac1261 restarted
*** stack smashing detected ***: /home/eric/anaconda/bin/python terminated
Aborted (core dumped)
When I use IPython (without the html) from the terminal, everything works fine. I have reinstalled IPython, but that did not change anything. Any help is very much appreciated. Thanks!
Try to run
import socket
print( '127.0.0.1 ' + socket.gethostname() + '.local' )
And add output to /etc/hosts
It will help if problem in socket.gethostbyname_ex
Related question gethostbyname_ex(hostname) extremely slow
Also this may help
conda remove pyzmq
conda install pyzmq=14.6.0
https://github.com/jupyter/notebook/issues/297

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