Failed jobs are shown as completed when `%%time` cell magic is used

[DrMaphuse]

Description

When a job fails with an exception inside a %%time magic cell, jupyter-scheduler does not recognize that the job actually failed.

For example, this job is shown as completed:

But the HTML/Notebook output clearly shows that an exception was raised:

How to reproduce

An exception is raised in a cell with %%time cell magic.

Expected behavior

Jobs where an exception is raised should be shown as failed, even when magic commands are used.

Context

• Operating System and version: Linux Ubuntu 20.04
• JupyterLab version: 4.0.11
• Jupyter Scheduler version: 2.4.0

[andrii-i]

Hi @DrMaphuse. Thank you for creating this issue.

Couple of questions: is it correct that this is only seen with in-notebook cell errors? Is it always the same type of error or not really?

[DrMaphuse]

This happens with errors raised in an upstream module that is installed in editable mode. So far it has always been the same type of error I believe, but I can dig a little further and look if there are others.

[DrMaphuse]

I have managed to reproduce the bug, and it is actually quite simple:

When an exception is raised in a cell with %%time cell magic, the job is falsely shown as completed by the scheduler:

Adjusted the title accordingly.