My code was running fine before I did not change anything and I ran it again. Now it doesn't return anything not even an error. It is just stuck on "In [*]".
This means that Jupyter is still running the kernel. It is possible that you are running an infinite loop within the kernel and that is why it can't complete the execution.
Try manually stopping the kernel by pressing the stop button at the top. If that doesn't work, interrupt it and restart it by going to the "Kernel" menu. This should disconnect it.
Otherwise, I would recommend closing and reopening the notebook. The problem may also be with your code.
updating ipykernel did it for me. it seems arch linux's ipykernel package had been outdated for some time
just do pip install --upgrade ipykernel
reference here: github solution
I have installed jupyter with command pip3 install jupyter and have the same problem. when instead I used the command pip3 install jupyter ipython the problem was fixed.
pip install ipykernel --upgrade
https://github.com/jupyter/notebook/issues/1133
I had the same problem and not any of the above mentioned solutions worked.
Until I updated conda packages:
conda update conda
conda update anaconda
and ... Voila! It all works!
The answers that state that your kernel is still executing the code in the cell are correct. You can see that by the small circle in the top right. If it is filled with a black/grey color, then it means it is still running.
I just want to add that I experienced a problem in JupyterHub where the code in the cell would just not execute. I stopped and restarted the kernel, shutdown and reloaded the notebook, but it still did not run.
What worked for me was literally copy pasting the same code to a new cell and deleting the old one. It then ran from the new cell.
This is mean your program is still running in background, you need to click shutdown (Shown in attached Image).
*** Shutdown the Running cell and again run your program.
I fixed this issue
just only type this command: jupyter notebook --no-browser
It will show you the path then copy and paste on Jupyter Notebook browser
The code will be executed in IPython Notebook Python 3
Usually, stopping and restarting that particular cell fixes this issue.
I had the same issue now:
Solved it by:
Just reloading the local weblink in which the Python is running
http://localhost:8888/notebooks/sec%201/Untitled.ipynb
Upgrading ipykernel, notebook and then downgrading tornado to 4.2.0 solved the issue for me.
My current package versions related to jupyter:
jupyter==1.0.0
jupyter-client==5.2.2
jupyter-console==6.1.0
jupyter-core==4.4.0
jupyterlab==2.2.5
jupyterlab-server==1.2.0
ipykernel==5.3.4
notebook==5.2.2
tornado==4.2
pyparsing==2.4.2
ipython==5.5.0
ipython-genutils==0.2.0
prompt-toolkit==1.0.15
Github
I had the same issue. I found that ipython must be running for jupyter notebook to execute.
Do the following:
Go to the folder where you have your ipython notebook(.ipynb)
Press shift and right click on the empty space then select "open command window here". This will open a command prompt window.
Type ipython. This will start ipython.
Open another command prompt window and open jupyter notebook.
Open your file again and go to cell>>>run cell.
This should work. It worked for me. Cheers!
This is because when we run a loop until it's termination the Kernel is in busy state and so IN [*] is shown up. Since Kernel is busy and if we just leave that cell to execute completely and switch to another cell to run, the corresponding cell will get busy and so again for that cell IN[*] is shown.
In that case you just need to restart your jupyter notebook and all is fine then.
But be sure that your loop will terminate this time or else again this error will turn up.
I have uninstalled jupyter, notebook and ipython, and installed jupyterlab. It is working for now (with just a few libraries installed and Python 3.6.8.
Something to discard: Uninstalling Python 3.7 completely with his libraries and reverting to 3.6 doesn't fix it, although it improves it, it works intermittently now (but once sth doesn't work properly, things start to get worse and worse, so I did the above).
Check the output on the server environment from which jupyter notebook was launched if you can. You'll probably find error messages and print() results.
Anaconda environments might cause this. I had to deactivate all conda environments and launch the notebook from root.
conda deactivate
To do so, cd into the directory in your terminal, run conda deactivate until there is nothing in the parantheses that precede your computer name and username. In the example below, I had to run conda deactivate twice.
(base) Your-Computer:~ Your-Username$ conda deactivate
(/Users/jw1/opt/anaconda3) Your-Computer:~ Your-Username$ conda deactivate
Your-Computer:~ Your-Username$ jupyter notebook
Then I was able to run jupyter notebook, and the code ran as expected.
I have also faced this problem number of times. I simply click the small square button (interrupt the kernel) beside Run button and click on Restart the kernel(with dialog) button (just beside square box) to run my program when struck on in [*].
The reason why it is happening is you are still talking to the same kernel instance in the second run, the variables from first run still exist and haven't been cleared.
This can be solved by adding this command before each run
%reset -f
Related
I have tried all of the things here on stack and on other sites with no joy...
I'd appreciate any suggestions please.
I have installed Jupyter and Notebook using pip3 - please note that I have updated pip3 before doing so.
However when trying to check the version of both jupyter --version and notebook --version my terminal is returning no command found. I have also tried to run jupyter, notebook and jupyter notebook and I am still getting the same message.
I have spent nearly two days now trying to sort this out... I'm on the verge of giving up.
I have a feeling it has something to do with my PATH variable maybe not pointing to where the jupyter executable is stored but I don't know how to find out where notebook and jupyter are stored on my system.
many thanks in advance
Bobby
You should be able to run jupyter with python -m even if the PATH variable is not set up correctly.
python -m jupyter notebook
you can check the PATH variables on Windows if you search in with the windows search function for env and then click on Edit the system environment variables > Environment Variables....
The path variable is a list of paths that the terminal checks for commands.
I didn`t work on Mac for a long time, so not sure how similar linux and mac command line still are, but on debian you control your path variable like this.
View paths:
echo $PATH
/usr/local/bin:/usr/bin:/bin
Add a path:
export PATH=$PATH:/mynewpath
For constant export add to ~/.bashrc
To view the path of the pip package, you can use
pip3 show jupyter
When jupyter-notebook works and jupyter notebook does not. It looks to me like a symlink thing. Or a Mac-specific problem.
So to summarise this is what I have found on this issue (in my experience):
to run the jupyter app you can use the jupyter-notebook command and this works, but why? This is because, the jupyter-notebook is stored in usr/local/bin which is normally always stored in the PATH variable.
I then discovered that the jupyter notebook or jupyter --version command will now work if I did the following:
open my ./bash_profile file
add the following to the bottom of the file: export PATH=$PATH:/Users/your-home-directory/Library/Python/3.7/bin
this should add the location of where jupyter is located to your path variable.
Alternatively, as suggested by #HackLab we can also do the following:
python3 -m jupyter notebook
Hopefully, this will give anyone else having the same issues I had an easier time resolving this issue.
I've found a solution from the documentation over at Jupyter https://jupyter-notebook.readthedocs.io/en/stable/troubleshooting.html but I am still curious.
It states that to run the application to use the command jupyter-notebook and hey-presto! It does seem to work now. But, why is this when nearly everywhere else I have read that to run the app we just type the command jupyter notebook.
Also, if I do need to check the version of any of the Jupyter files how do I go about this now, if jupyter --version and notebook --version still don't work.
Also, how do I go about finding these files in my file system if I have no idea where they are located? And how do I go about adding these to my path so that I can, for example, check the version of these programs?
Will pip3 automatically update this software as and when needed?
Thanks again in advance
have you tried locate Jupiter? It may tell you where jupyter is on your system.
Also, why not try installing jupyter via anaconda to avoid the hassle?
I definitely would recommend going through anaconda which makes everything a lot easier.
The following is the link with step by step instructions: https://jupyter.readthedocs.io/en/latest/install.html
I want to be able to have a working jupyter notebook working for VS code out of the box, with minimal work on my side.
I tried opening a jupyter notebook. I immediately found the interpreter and used my conda env with the command pellet (command + shift + P then in the drop down menu found my conda env). This seems to make the terminal work since which python points to the right place:
(automl-meta-learning) brandomiranda~/automl-meta-learning ❯ which python
/Users/brandomiranda/miniconda3/envs/automl-meta-learning/bin/python
also running python scripts from VS Code seems to be working fine too, see output:
(automl-meta-learning) brandomiranda~/automl-meta-learning ❯ /Users/brandomiranda/miniconda3/envs/automl-meta-learning/bin/python /Users/brandomiranda/automl-meta-learning/python_playground.py
x = 1
my_str = this is a string
y = 2
but when I try the jupyter notebook it doesn't work.
Most noticeably my VS code does not have a kernel connected, look at the screenshot:
I tried clicking on a couple of arrows as suggested on reddit (vs_code_jupyter_server_no_kernel_python_not):
When I try running things in my jupyter notebook I get the following error:
Error: Activating Python 3.7.6 64-bit ('base': conda) to run Jupyter failed with Error: StdErr from ShellExec, /Users/brandomiranda/.bashrc: line 31: jump-module.bash: No such file or directory
CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
To initialize your shell, run
$ conda init
Currently supported shells are:
- bash
- fish
- tcsh
- xonsh
- zsh
- powershell
See 'conda init --help' for more information and options.
IMPORTANT: You may need to close and restart your shell after running 'conda init'.
.
which is strange. My shell is not even bash so I don't know why that message is being shown to me (maybe VS Code doesn't know Mac OS Catalina uses zsh? not sure how to fix that for VS Code). Regardless, I proceeded to do what I think the error message is suggesting. So I did the following:
I ran conda init and then went down to the terminal inside vs code and restarted the shell by running zsh but the jupyter kernel still doesn't work on my notebook in vs code. Not sure what's wrong.
In addition, I did what the error message suggested:
(automl-meta-learning) brandomiranda~/automl-meta-learning ❯ conda init zsh
no change /Users/brandomiranda/miniconda3/condabin/conda
no change /Users/brandomiranda/miniconda3/bin/conda
no change /Users/brandomiranda/miniconda3/bin/conda-env
no change /Users/brandomiranda/miniconda3/bin/activate
no change /Users/brandomiranda/miniconda3/bin/deactivate
no change /Users/brandomiranda/miniconda3/etc/profile.d/conda.sh
no change /Users/brandomiranda/miniconda3/etc/fish/conf.d/conda.fish
no change /Users/brandomiranda/miniconda3/shell/condabin/Conda.psm1
no change /Users/brandomiranda/miniconda3/shell/condabin/conda-hook.ps1
no change /Users/brandomiranda/miniconda3/lib/python3.7/site-packages/xontrib/conda.xsh
no change /Users/brandomiranda/miniconda3/etc/profile.d/conda.csh
no change /Users/brandomiranda/.zshrc
No action taken.
but it seems it made no difference.
Any idea how to fix this?
I was suggessted by the developers of the VS code python extension to follow whatever they did here:
https://github.com/microsoft/vscode-python/issues/9566
but I can't figure out exactly it is they want me to do.
How do I fix this?
Related resources:
reddit: https://www.reddit.com/r/vscode/comments/eq2bfv/vs_code_jupyter_server_no_kernel_python_not/
gitissue: https://github.com/microsoft/vscode-python/issues/9636
I initially thought it was a conda issue so I looked into this question: Activate conda environment stopped working in vscode
https://www.reddit.com/r/vscode/comments/eshxka/how_does_one_connect_a_jupyter_kernel_to_vs_code/
https://www.quora.com/unanswered/How-does-one-connect-a-Jupyter-Kernel-to-VS-Code-if-one-does-not-connect-automatically
You need to select the python interpreter for jupyter, you can do it by following the step
Open command panel
Mac: CMD+Shift+P
PC: CTRL+SHIFT+P
Then search for select Interpreter to start jupyter server then hit enter, it will list all the interpreter, then select any interpreter and done!
it's just a one time process, after this, it will get connected automatically.
As bizarre as it seems, I also noticed this the other day and the only thing that works so far for me is to open VS Code by launching it from the Anaconda Navigator:
Then I get, as expected:
If you see the very long discussion I had in the git issue (https://github.com/microsoft/vscode-python/issues/9566) once I removed all the errors thrown by my .bashrc and .zhrc, the jupyter feature in VS code started working for me again. It's super weird (specially because I am NOT using bash at all and I am using zsh as my shell, I would have expected VS code to be robust to my .SHELLrc files throwing errors but it's not).
If that doesn't work, then you might have to install the vsix view extension and install the ms-python-insiders.vsixlinked in the issue (https://github.com/microsoft/vscode-python/issues/9566).
If on Windows VSCode, what worked for me was installing and enabling the Python and Jupyter extensions, then CTRL+SHIFT+P, select Interpreter to start jupyter server. Those extensions were the bottleneck.
I was able to use jupyter notebook 4 days ago. The only thing that changed was there was a firefox version update.
After that the server crashes everytime .ipynb files are opened. Even the directory will have a server error. I tried it both on Firefox and Google Chrome, both browsers will crash the server.
My only kernel is python3 and it always says "Kernel Busy". I tried resetting my pc and the jupyter notebook, but nothing seems to work.
The console showed:
The last 2 lines are causing the crash but I don't know how to fix it
When I type conda install jupyter in the anaconda prompt, I get something before it finishes as shown below. Maybe it might have a cause as to why it is having issues:
I created a new python environment and installed python, matplotlib, pandas, jupyter and it still crashes
Please uninstall and re-install all the below items:
ipykernel
ipython
jupyter_client
jupyter_core
traitlets
ipython_genutils
Additionally, if you're going to install with conda, follow below command.
run conda clean -tipsy
This command will clean up conda caches before you start.
Reference:
https://github.com/jupyter/notebook/issues/1892
Do you let Jupyter start the browser? If so, disable that and start the browser manually. I don't see how the zmq error messages could be related to the browser startup, but since you say that the only change was a browser update, that's worth a shot.
Check which version of pyzmq is installed. If Jupyter Notebook and the kernel are in different conda envs, check both and make sure they are on the same version and build. Try upgrading or downgrading to different versions. According to Anaconda issue 8932, there are problems with pyzmq on Windows. And a new build for win32 was released about two weeks ago - though I would expect win64 builds to be used nowadays.
I also found some recommendations for a similar error message to yours in Spyder issue 6097. The first one is to try without firewall and/or antivirus. You might have picked up a new firewall rule unknowingly. Trying different versions of pyzmq is also mentioned there.
I am sharing this solution in case someone needs it in the future.
I have just faced the same problem a hour ago. This was the message I was getting in the terminal. And the jupyter keeps restarting.
ModuleNotFoundError: No module named 'html.entities'; 'html' is not a package
[I 00:44:32.436 NotebookApp] KernelRestarter: restarting kernel (1/5), keep random ports
After Searching through the internet when I can not find the solution. I fixed it by removing the .HTML files I had in the directory. After moving those file jupyter started working parfectly.
I just had a similar problem - for me, it was casued by a non-existing %temp% directory (I have %temp% mapped to a ram disk, and the temp folder on it wasn't created yet).
Creating the folder pointed to by %temp% solved the issue.
All my environments were working totally fine but suddenly after restarting the system, the jupyter notebook from an environment was not opening or it was suddenly crashing. Tried form anaconda prompt but getting "Unable to create Process...
All my DL dependencies were on this environment and I didn't want to create new environment completely installing all the required dependencies.
Solution: I opened the Anaconda Navigator and cloned old_env to new_env and it worked magically. I could able to open the jupyter notebook successfully and all dependencies were working fine. Hope it helps
I just downloaded and installed anaconda, and I opened the jupyther notebook from the "start" menu, it prompts a black window that looks like a command line window, but instead of opening my browser on the notebook "tree" page, it just closes the black command line window and nothing happens.
I formatted my computer and downloaded the anaconda, before it was fine and now it doesn't launch.
tried to unistall and install again but nothing...
and ideas?
I had the exact same problem, and solved it using various answers from various places. Here is what I did:
Open a terminal, then copy paste:
conda update nb_conda nb_conda_kernels nb_anacondacloud
For me it answered that nb_conda wasn't installed, so I added:
conda install nb_conda
From there, jupyter notebook launched properly but it ended up in no folder and stated a "servor error". I solved the problem by running it stating the folder where I wanted it to start:
jupyter notebook C:\Users\YOURNAME\Documents\Python
It is then possible to update directly your shortcut by changing the "target" and "opens in":
Target : C:\ProgramData\Anaconda3\Scripts\jupyter.exe notebook
Opens in : C:\Users\YOURNAME\Documents\Python
I hope that it will work all right for you, let me know if you found a better solution...
Any cells in Jupyter which have In [*] in front of them are not executing in Jupyter notebook. See image below:
I even restarted the kernel, without any improvement of the situation. Previous cells run without trouble. Every cell I added recently has the problem.
I recommend you the following steps:
Close ipython notebook, and then reopen the file.
If 1 does not work, then restart the kernel and reopen the file.
If 2 does not work, then try whether things work fine on console. Type ipython and check whether your code statements work.
If 3 does not work, try reinstalling the scientific python distribution if you are using Anaconda or Enthought.
I have encountered same problem on my windows machine.Try Jupyter with Anaconda on Windows will not run cells. Probably your antivirus program or your iis is blocking default 8888 port.
Downgrading tornado to 4.5.3 fixed my problem. with
pip - sudo python3.6 -m pip install tornado==4.5.3
conda - conda install tornado==4.5.3
use this for this bugs
You probably have a lot of notebooks(tabs) open with running kernels in them. You can check this by clicking on this icon 1 on the left. There you see all the running kernels in all your open notebooks and shut them down.2 This should solve your problem.