No Kernels Found Error

[Ha5hBr0wn]

Whenever I try to open a notebook I get a warning that looks like the image below:

Steps to replicate:

install brew with curl install pipx with brew install euporie with pipx pip install --user ipykernel

all of the above is done with the suggested command from my ~ dir

I also added all the suggested paths to my $PATH from each installation

How can I run code? Also I thought the whole point of pipx was to install all required packages in an isolated venv that the executable uses, so why am I even executing pip install --user ipykernel in the first place?

[Ha5hBr0wn]

Okay I made some progress. So it looks like to install packages for the pipx environment one has to activate the venv and then run python -m pip install ipykernel (not just pip install, otherwise won't install for venv)

Now when I open a notebook file the editor immediately print some error lines which disappear instantly so I can't read them and then shows the editor (I can type in it but I can't execute code, nor is the menu bar visible so I just quit by closing the entire terminal window)

[joouha]

There's quite a lot going on here!

Euporie does not pull in any Jupyter kernels as dependencies - it's a Jupyter client, but you need to install a kernel yourself.

A Jupyter kernel does not have to be Python - there are kernels for many programming languages. ipykernel is a Jupyter kernel for the Python programming language. While it is technically possible to instally ipykernel inside your euporie pipx virtual-environment, it's almost certainly not what you want to do (you might want to uninstall it from the pipx virtual-environment). You probably want your Python kernel to be installed in your system-wide Python prefix.

You can do this by running the following (without any virtual environment activated):

pip install --upgrade ipykernel

You then need to register this ipykernel installation as your Python kernel of choice, which you can do by running the following:

python -m ipykernel install --user

Then you should be able to run code in euporie.

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You can quit euporie by pressing Ctrl + q.

[SimiPixel]

Exactly the same procedure but including a final python -m ipykernel install --user gives the following error message

(the copy traceback button also doesn't do anything)

Any ideas how to provide good debugging information?

Also, iterm2 also doesn't allow for any keybinding to execute cells.

[joouha]

Also, iterm2 also doesn't allow for any keybinding to execute cells.

Ctrl+e and Ctrl+r should work.

Any ideas how to provide good debugging information?

If you run euporie-notebook with --log-level=debug --log-file=euporie.log, then debug info will be logged to the file euporie.log.

The main cause of the kernel related errors (as described in #75) should have been fixed by 3a5e39f7ccb762496c8d7f5728daf49ea5a1a213. I'll be making a new release with this pretty soon.

[joouha]

Should be fixed, please open a new issues if you're still experiencing problems with the latest version of euporie