Add option to install Jupyter when displaying message about Jupyter not being avaiable

[DonJayamanne]

Currently when selecting an environment (even conda) if Jupyter isn't available running cells displays a message indicating Jupyter is not available.

The message contains a link to a troubleshooting guide page.

We can simplify this for users by simply adding a button that would install jupyter in the current environment. We do this today with other tools used by the python extension (linters, formatter, etc).

Suggestion:

• Add a button Install Jupyter
• Clicking this would result in jupyter getting installed either via conda, pip or pipenv based on the type of the environment selected (use InstallationChannelManager class)

[Clocktown]

I agree. Although I actually get this message even though Jupyter is already installed, so there seems to be something else going wrong here as well, see microsoft/vscode-python#3354 - it's probably a good idea to fix that first.

[WSLUser]

@Clocktown That is due to your path. You need to add the path to the executable, restart VSCode and attempt to use it again.

[Clocktown]

@DarthSpock No, that does not work with virtual environments like anaconda and I tried it already. It also defeats the purpose of such environments. The issue is being worked on already however.

Edit:
To elaborate on that, when the jupyter executable of Anaconda is in path and you type jupyter notebook into CMD, it will simply crash with an include error. That is because more than just this has to be done to get it working, and that is to run activate <environment> before.
VScode will simply display the same message as if it wasn't installed.

[vnijs]

Question: Is a jupyter install really required to connect to a local or remote jupyter kernel running in a docker container?

[DonJayamanne]

Question: Is a jupyter install really required to connect to a local or remote jupyter kernel running in a docker container?

No.

[vnijs]

But vscode does not open the interactive window and gives the error below, even after specifying a url for a running jupyter server (in docker on local machine) when jupyter is not also installed locally.

When jupyter is installed locally I can connect to the server running in a docker container:

[DonJayamanne]

I think I may be wrong, sorry.

[vnijs]

@DonJayamanne My question was really about if the extension really uses the locally installed jupyter when connecting to a remote or if there is perhaps an automated check that an error is always thrown when jupyter is not locally installed, regardless of whether the user is attempting to connect to a remote or not.

I did a search for "jupyter" on github but only issues are shown. Any chance you could point me to the code in the repo where this is handled?

[vnijs]

@DonJayamanne It seems you were right after all. python.dataScience.searchForJupyter is set to true by default, but if you set it to false you can indeed connect to a running jupyter server without needing jupyter installed locally.

[rchiodo]

Our next release should have an option for installing jupyter automatically.

See PR: microsoft/vscode-python#6421