jupyter.jupyterCommandLineArguments setting not working

[kjbrak]

Applies To

• Notebooks (.ipynb files)
• Interactive Window and/or Cell Scripts (.py files with #%% markers)

What happened?

The jupyter.jupyterCommandLineArguments setting can be set with some commands to be run during startup of the ipython terminal, but it is not working.

I would for example like to be able to do import dotenv and dotenv.load_dotenv() during start up of the interactive window to get some envornmental variables loaded in the interactive window environement. Nothing passed in a list to this setting works as expected.

A trivial example would be:
"jupyter.jupyterCommandLineArguments": [ "import pandas as pd" ],

This does not have any effect (irrespective of which package, f.ex. import dotenv, does not work either) is not available in the interactive window after startup/restart.

Ref. description in vscode settings GUI:
Jupyter: Run Startup Commands
A series of Python instructions or iPython magic commands. Can be either an array of strings or a single string with commands separated by '\n'. Commands will be silently executed whenever the interactive window loads. For instance, set this to '%load_ext autoreload\n%autoreload 2' to automatically reload changes made to imported files without having to restart the interactive session.

VS Code Version

1.65.2

Jupyter Extension Version

8.1.1

Jupyter logs

---------------------------------------------------------------------------
NameError                                 Traceback (most recent call last)
\InteractiveInput-1 in <cell line: 1>()
----> <a href='vscode-interactive-input:/InteractiveInput-1?line=0'>1</a> pd

NameError: name 'pd' is not defined

Coding Language and Runtime Version

Python v3.8.0

Language Extension Version (if applicable)

v2022.2.1924087327

Anaconda Version (if applicable)

No response

Running Jupyter locally or remotely?

N/A or Not sure

[rchiodo]

Thanks for the issue. You should be setting this setting:

"jupyter.runStartupCommands": []

The jupyter.jupyterCommandLineArguments is used when we start jupyter, it is not passed to the kernel.

For example, this is what you'd set it to based on the example in the docs:

"jupyter.runStartupCommands": [
    "%load_ext autoreload",
    "%autoreload 2"
]

You need to close and reopen a notebook for those changes to take effect.