git extension not showing up when running jupyter server extension list

[sarahspak]

Description

I ran pip install jupyterlab-git, and I see the frontend extension , but cannot see the server extension (see screenshots below).

labextension is present

server extension is missing

Reproduce

pip install jupyterlab-git
jupyter server extension list

Expected behavior

Expect to see jupyterlab-git server extension

Context

• Python package version:

pip freeze | grep jupyter
jupyter-client==6.1.12
jupyter-core==4.7.1
jupyter-packaging==0.10.2
jupyter-server==1.7.0
jupyter-server-mathjax==0.2.2
jupyterlab==3.0.16
jupyterlab-git==0.30.1
jupyterlab-pygments==0.1.2
jupyterlab-server==2.5.2
jupyterlab-widgets==1.0.0

• pip show jupyterlab-git

Name: jupyterlab-git
Version: 0.30.1
Summary: A JupyterLab extension for version control using git
Home-page: https://github.com/jupyterlab/jupyterlab-git.git
Author: Jupyter Development Team
Author-email: None
License: BSD-3-Clause
Location: /Users/spak/.pyenv/versions/3.9.1/envs/jlab3_extension_dev/lib/python3.9/site-packages
Requires: nbformat, jupyter-server, pexpect, nbdime, packaging
Required-by: 

• Extension version:

        @jupyterlab/git v0.30.1 enabled OK

• Git version:

git version 2.31.1

• Operating System and its version:
  Mac OS Catalina 10.15.7 (19H1030)

Command Line Output

Paste the output from your command line running `jupyter lab` here, use `--debug` if possible.

Web Browser Output

Paste the output from your browser web console here.

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[krassowski]

Looks suspiciously similar to an issue we are having over at https://github.com/krassowski/jupyterlab-lsp/issues/598 - also on Mac.

Could you please try running:

jupyter server extension enable --py jupyterlab-git

or

jupyter server extension enable --sys-prefix --py jupyterlab-git

And see if it shows up on the list afterwards?

[sarahspak]

@krassowski neither of those commands worked; still seeing the following error message:
X Validation failed: The module 'jupyterlab-git' could not be found. Are you sure the extension is installed?

[krassowski]

Sorry, it should be:

jupyter server extension enable --py jupyterlab_git

(underscore not hyphen). Does this one help?

[sarahspak]

unfortunately not :(

[krassowski]

Is the message the same or different?

[sarahspak]

Looks to be the same

[sarahspak]

noticed that it's writing the config to /usr/local/Cellar/jupyterlab/3.0.14/libexec/etc/jupyter but I use pyenv (environment is called jlab3_extension_dev. Should it be writing to:
~/.pyenv/versions/jlab3_extension_dev/etc/jupyter instead?

[sarahspak]

some more digging:
when I run which jupyter, I get

/usr/local/bin/jupyter

but when I run pyenv which jupyter, I get

/Users/spak/.pyenv/versions/jlab3_extension_dev/bin/jupyter

[krassowski]

That's strange. I also use pyenv but for me it is:

(my-env) $ which jupyter
/home/krassowski/.pyenv/shims/jupyter
(my-env) $ pyenv which jupyter
/home/krassowski/.pyenv/versions/my-env/bin/jupyter

Though I have no idea how things are supposed to work on Mac sorry :(

[sarahspak]

Ok I think I figured it out - I deleted this directory /usr/local/Cellar/jupyterlab/3.0.14/libexec/etc/jupyter, and now things are working as expected

which jupyter
/Users/spak/.pyenv/shims/jupyter

Many thanks @krassowski , will go ahead and close this issue