Fails when working from a subfolder

[thoralf-gutierrez]

Hello!

I'm running into the following issue. When I am working on a notebook within a subfolder, e.g. if I'm working on subfolder/hello.ipynb.

When I am inside hello.ipynb and I try to go to the definition of a function that is outside of my notebook, I see the relevant file appear inside .jupyter_symlinks, and my file tree looks like

* file_at_root.txt
* subfolder/hello.ipynb
* subfolder/.jupyter_symlinks/path/to/file.py

When I try to go to the external definition, it fails to jump, because this api call returns 404

• jupyterhub.local/user/my_username/api/contents/.jupyter_symlinks/path/to/file.py

But the following api call would have worked

• jupyterhub.local/user/my_username/api/contents/subfolder/.jupyter_symlinks/path/to/file.py

So it looks like either the .jupyter_symlinks folder should always be at the root of my jupyter folder, or the path in the URL should include the base path of the notebook itself.

Are you seeing the same thing?

[krassowski]

Yes, .jupyter_symlinks should always be at the root of your Jupyter (i.e. where you start JupyterLab from). Apologies if this was not clearly explained in the docs. Is there a reason why you would prefer not to have it in the Jupyter project root?

[thoralf-gutierrez]

I don't think I did anything special, the .jupyter_symlinks just appeared in the subfolder instead of the root folder. Maybe that's the bug then?

[krassowski]

It might be. However, this would be very interesting as normally, the user needs to create the .jupyter_symlinks folder manually. I do not expect it to be created by the extension - it would be useless as it would not know where to symlink to...

Would you mind providing a concrete reproducible example (i.e. where is the file with the definition)?

[thoralf-gutierrez]

For me the .jupyter_symlinks appears on its own, I've never had to create one.

Reproducible example from home folder that works

• from the terminal, in jupyter home folder, dorm -rf .jupyter_symlinks/
• create a new notebook Untitled.ipynb
• add import json
• put cursor on json and CTRL + ALT + B and successfully jump to .jupyter_symlinks/usr/lib/python3.5/json/__init__.py
• notice that .jupyter_symlinks/usr/lib/python3.5/json/__init__.py was created automatically

Reproducible example from subfolder that does not work

• from the terminal, in jupyter home folder, dorm -rf .jupyter_symlinks/ <-- clean up the previous experiment
• then, mkdir example
• create a new notebook example/Untitled.ipynb
• add import json
• put cursor on json and CTRL + ALT + B notice the failure in your console log, 404 for https://jupyterhub.host/user/myuser/api/contents/.jupyter_symlinks/usr/lib/python3.5/json/__init__.py?content=0&1575587453311
• notice though that a example/.jupyter_symlinks/usr/lib/python3.5/json/__init__.py was created automatically

[caizefeng]

Exactly the same problem there.