Cannot open notebook on other drive

[dkhokhlov]

Description

What steps will reproduce the problem?

1. create notebook on network drive using jupyter-notebook
2. in Spyder open the created notebook in "Notebook" tab

Observed: Error This site can't be reached localhost refused connect.

Note: if the same notebook is placed on local drive - it works as usual.

Versions

• Spyder version: 3.3.6
• Python version: 3.7.3
• Qt version: 5.12.4
• PyQt5 version: 5.12.3
• Operating System: Windows 7

Dependencies

pyflakes >=0.6.0  :  2.1.1 (OK)
pycodestyle >=2.3 :  2.5.0 (OK)
pygments >=2.0    :  2.4.2 (OK)
sphinx >=0.6.6    :  2.1.2 (OK)
rope >=0.9.4      :  0.14.0 (OK)
jedi >=0.9.0      :  0.13.3 (OK)
nbconvert >=4.0   :  5.5.0 (OK)
pandas >=0.13.1   :  0.24.2 (OK)
numpy >=1.7       :  1.16.4 (OK)
sympy >=0.7.3     :  1.4 (OK)
cython >=0.21     :  0.29.12 (OK)
qtconsole >=4.2.0 :  4.5.2 (OK)
IPython >=4.0     :  7.6.1 (OK)
matplotlib >=2.0.0:  3.1.0 (OK)
pylint >=0.25     :  2.3.1 (OK)

[ccordoba12]

We'll come back to fix several bugs in this plugin after we release Spyder 4.

[phausamann]

It seems that this issue occurs when the notebook is not below the notebook path of the notebook server.

This even happens when c.NotebookApp.notebook_dir is set in jupyter_notebook_config.py... on my Windows machine Spyder ends up launching two servers, one in C:\Users\<username> (maybe because of the untitled0 default notebook?) and a second one in the notebook_dir. But the notebook plugin ends up using the first server, hence the error.

[Nikos-T]

Hello, I have had a similar problem. I start Spyder and it seems that notebook starts in my home folder (Windows os). When I try to open a file in another drive the error "localhost refused connect" appeared. After copying and pasting the file in test locations (firstly in home directory and then in C:) the problem disappeared.

Edit: The problem changed to permission denied when saving changes to the notebook. When closing the notebook the following warning displays:

Spyder could not get a list of sessions from the jupyter notebook server. Message: Forbidden.

[jitseniesen]

@Nikos-T Thank you for confirming the issue and giving additional information. I don't normally use Windows so any information which narrows the problem down further would be helpful.

Could you please list the versions of Spyder and spyder-notebook? Are you using Windows 10? And can you test whether it is possible to open the notebook on a network drive using Jupyter directly, outside of Spyder?

The problem changed to permission denied when saving changes to the notebook.

Is this when you open the notebook in a "good" location (home folder or C: drive) and then try to save it in the same location?

[Nikos-T]

Yes I am using windows 10. From conda list:

Name	Version	Build	Channel
spyder	4.1.2	py37_0
spyder-kernels	1.9.0	py37_0
spyder-notebook	0.2.3	pyh9f0ad1d_0	spyder-ide
jupyter	1.0.0	py37_7
jupyter_client	6.1.2	py_0
jupyter_console	6.1.0	py_0
jupyter_core	4.6.3	py37_0
jupyterlab	1.2.6	pyhf63ae98_0
jupyterlab_server	1.1.0	py_0

Actually today I was not able to reproduce the problem. The desirable to edit files, opened from beginning and saving works correctly. In the meantime:

1. a windows update was installed, but I doubt that that fixed the problem.
2. I opened jupyter notebook from anaconda prompt (conda base environment)

I also should mention that I use a virtual environment for project in spyder (spyder still runs as is but python interpreter is loaded from elsewhere). I suppose there was a problem on my end and opening jupyter from anaconda prompt fixed it?

[devinek-ppb]

Hello, I am getting the same issue today.

spyder version: 5.4.5 spyder-notebook version: 0.5.1 python version: 3.11.5

I am using Windows 10 and I installed in a venv.

I have tried installing in a new virtual environment, but still getting the error.

I have uninstalled and reinstalled spyder, spyder-notebook, notebook and jupyter-lab.