Jupyter notebook not running code Stuck on In

Question

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

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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.

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pip install ipykernel --upgrade   https   github com jupyter notebook issues 1133

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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

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I have fix for this issue   example if you are assigning some values to DataFrame       symbol has shown this because of the script running  to see the outout of the script have to mention  df like this  output

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If you have ad block installed in your browser  just switch it off and then stop the kernel and start again  now the code will execute

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What I did was to quit the Notebook  and I started all over again  That is the proper solution  Restarting the Kernel really did not really help  But quitting did so try quitting and start again

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I had the same problem   In Jupyter main menu   1  Kernel -  Shutdown 2  Kernel -  Restart

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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

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Based on you kernel status  upper right beside  Python 3   the one that is a circle   It seems that it is still busy  It might be trapped in an endless loop or maybe you ve run display something that is not closed

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Usually  stopping and restarting that particular cell fixes this issue

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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

User · Answer

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

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Sometimes the extensions also create a problem  I was using a dark mode extension Night Eye  in Microsoft edge  So kernel was busy  When I uninstalled it  It working fine

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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

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usually  it is solved with restarting the Kernel on jupyter notebook

User · Answer

It s just the incorrect lines of code you were trying to execute     You need to turn off your antivirus  if have   Restart Jupyter Notebook  Copy your code then delete the cell you were working on  Rewrite code and make sure you are not doing any mistakes  Find the missed wrong lines of code specially increment operators and correct them    hope it help

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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

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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

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I have the same issue and I did this  I went to windows option  the icon   then I chose the option Anaconda Prompt then a small windows show up with the prompt like this  c  user computer name  then I type this  c  user computer name jupyter notebook then enter and that s it  I hope that helps

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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

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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

User · Answer

The   shows up when kernel is running some other program  it might have stuck in some kind of infinite loop  Pressing stop button at the top to stop the kernel  It might fix the problem

User · Answer

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

User · Answer

pip install prompt -toolkit 2 0 9 pip install --upgrade ipython  conda update jupyter core jupyter client

User · Answer

I had the same problem  and the little star means that the kernel is still working  So the program is trapped in an endless while loop  So you only have to the rewrite the code

User · Answer

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

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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

User · Answer

From my experience  it usually means one of the prior cells is keeping the kernel busy  When you hit run on the intended cell and     appears  from there  try to scroll up to the prior cell which is also advertising a      Then goto kernel- interrupt  and lastly  try running the cell again

[python] Jupyter notebook not running code. Stuck on In [*]

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