I have a batch file that I use to run my jupyter lab.

file.bat

call <anaconda_dir>\Scripts\activate.bat rasa_ai_conda
jupyter lab
conda deactivate
call conda.bat deactivate

This batch file will activate my rasa virtual environment in anaconda using the windows prompt.

So now when I press ctrl c for closing my jupyter lab it asks this

Terminate batch job (Y/N)?

First of, the prompt closes even if I enter 'N', how do I fix this.

Secondly, I want all of my script executed before the prompt exits, how do I do this?

Tried searching for fix to this issue but still not able to figure out a solution.

CodePudding user response：

So, I finally found the fix for this. As far as I understood this is what was happening. Correct me if I am wrong.

So, it turns out that jupyter lab is also calling its own batch file. Which replaces the cmd (current process) unlike calling an .exe file. When the jupyter lab instance is closed it basically ends the process, i.e. jupyter lab process which had replaced the cmd process, in turn closing the prompt as it takes that to be the end of the process.

But when we use call a new process is initialized keeping the original process i.e. cmd prompt running in the background.

So, when current running process i.e. jupyter lab is closed, the control is shifted to the previous process i.e. cmd prompt, which will continue to run the next command until the end.

In the above batch file we just have to make these changes

call <anaconda_dir>\Scripts\activate.bat rasa_ai_conda
call jupyter lab
call conda.bat deactivate

This will run all the commands even after terminating jupyter lab server instance after pressing ctrl c. So if we enter n for Terminate batch job (Y/N)?, the commands following jupyter lab will run as well.

This fixes both my issues.

Please let me know if I understood it correctly. If not please do give the correct explanation for what is happening.