How to create a blank Jupyter notebook using ein?

Question

I am using ein package in Emacs, and everything works fine when I use an existing Jupyter file. However, when I create a new .ipynb file (with C-x C-f), I get a blank buffer which doesn't have any cell.

I tried adding cell above/below (C-c C-a - as I can do in existing files), but it says that it is undefined.

How can I create a blank Jupyter notebook with a blank cell?

Answer 1

To get this

ein Dashboard

I did this

This is the list of packages I have installed on debian

~$ dpkg -l | grep jupyter
ii  jupyter-core                                       4.11.1-1                             all          Core common functionality of Jupyter projects (tools)
ii  python3-jupyter-client                             7.3.4-1                              all          Jupyter protocol client APIs (Python 3)
ii  python3-jupyter-core                               4.11.1-1                             all          Core common functionality of Jupyter projects for Python 3

The latest version of ein from git checkout wasn't compiling with emacs 29.0.50 (master branch). So my ein is checked out at this commit

~/src/nongnu-elpa/packages/ein$ git log --format=oneline | head -n 1
bfd04d3175cfb72f2e3a20eb034f8d6825a2a906 emacs28 changes

I start jupyter notebook from the terminal with

/usr/bin/jupyter notebook --notebook-dir=/home/whitetrillium/src/data/ --no-browser

The output in the terminal gives you the port number and token.

    To access the notebook, open this file in a browser:
        file:///home/whitetrillium/.local/share/jupyter/runtime/nbserver-267275-open.html
    Or copy and paste one of these URLs:
        http://localhost:8888/?token=a7483254e295e6759ec8acb77a492fd98c9c26f9cc78829c
     or http://127.0.0.1:8888/?token=a7483254e295e6759ec8acb77a492fd98c9c26f9cc78829c

Then once when I do M-x ein:login, ein prompts me for the port number and the password. Once the login goes through, I see the above dashboard, which allows me to open existing notebooks or create new notebooks, or stop the running notebooks.