Can I use a virtual environment for each project folder?

[Brayan Rodriguez]

I have some github repos in a server and I would like to run that repos but in different virtual environments in the JupyterHub installed there. 

[Jason Anderson]

Hi Brayan,

One way to do this requires JupyterHub is configured to allow named servers[1]. When enabled, users can create multiple Jupyter servers associated with their user, and you could then check out one repo into each one.

Depending on what type of virtual environments you're after (are we just talking Python modules?), you could rely entirely on virtualenv/venv[2], check out each repo in to a different folder and then create a virtualenv for each one.

Hope that helps!
/Jason

[1]: https://jupyterhub.readthedocs.io/en/stable/reference/rest.html#enabling-users-to-spawn-multiple-named-servers-via-the-api
[2]: https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/

On 8/28/19 2:48 PM, Brayan Rodriguez wrote:

I have some github repos in a server and I would like to run that repos but in different virtual environments in the JupyterHub installed there. 

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[Brayan Rodriguez]

Thanks for responding, Jason. 

Yes, I am just talking about Python modules. If I create a virtualenv (with the venv folder) for each different repo (in independent folders), automatically JupyterHub works with that virutalenv? 

Thanks in advance. 

El jueves, 29 de agosto de 2019, 15:06:43 (UTC-5), Jason Anderson escribió:

Hi Brayan,

One way to do this requires JupyterHub is configured to allow named servers[1]. When enabled, users can create multiple Jupyter servers associated with their user, and you could then check out one repo into each one.

Depending on what type of virtual environments you're after (are we just talking Python modules?), you could rely entirely on virtualenv/venv[2], check out each repo in to a different folder and then create a virtualenv for each one.

Hope that helps!
/Jason

[1]: https://jupyterhub.readthedocs.io/en/stable/reference/rest.html#enabling-users-to-spawn-multiple-named-servers-via-the-api
[2]: https://packaging.python.org/guides/installing-using-pip-and-virtual-environments/

On 8/28/19 2:48 PM, Brayan Rodriguez wrote:

I have some github repos in a server and I would like to run that repos but in different virtual environments in the JupyterHub installed there. 

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[Jason Anderson]

OK, then another thing you can try is something like installing new IPython kernels[1].

The way this would work (I think) is you would create the virtualenvs inside those venv folder, then go inside each one and install a new IPython kernel with a name. For example, if you had a repo "my-project" checked out, it would be like:

  cd my-project
  virtualenv venv
  source venv/bin/activate
  ipython kernell install --user --name my-project --display-name "Python (my-project)"
  deactivate

This _should_ install a new kernel into your JupyterLab environment. I'm not 100% sure if this can be done without restarting the server, which afaik isn't possible within something spawned from JupyterHub.

Let me know how it works,
/Jason

[1]: https://ipython.readthedocs.io/en/stable/install/kernel_install.html#kernels-for-different-environments

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[Brayan Rodriguez]

Thank you so much! It seems it works! Just adding: 

pip install ipykernel

python -m ipykernel install --user --name myenv --display-name "Python (myenv)"

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[Jason Anderson]

Very cool! Glad it worked out for you :)

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