Install NBAUTOEXPORT

You should install it in the same virtual environment that you are running Jupyter Notebook or JupyterLab from.

# in base (from in _conda_env/base.txt)
pip install nbautoexport

!cat ~/_conda_env/base.txt

conda install -y mamba -n base -c conda-forge
mamba init
mamba install -y nb_conda_kernels
mamba install -y -c conda-forge jupyterlab jupyterlab-git
mamba install -y ipywidgets

mamba install -y -c conda-forge jupyterlab_execute_time
#and change in jupyter lab : Settings- > Advanced Settings Editor -> Notebook: {"recordTiming": true} 

pip install --upgrade nvitop

jupyter labextension install jupyterlab-spreadsheet
pip install jupyterlab-tabular-data-editor
pip install nbautoexport

There are two main steps to setting up nbautoexport:

Install nbautoexport as a post-save hook with Jupyter (once per machine you use it on)
Configure a notebooks directory (once per project you are working on)

Install nbautoexport as a post-save hook

# from base environment
nbautoexport install

> nbautoexport post-save hook successfully installed with Jupyter.
> If a Jupyter server is already running, you will need to restart it for nbautoexport to work.

Configure a notebooks directory

# from your notebooks directory
nbautoexport configure .

It creates this file .nbautoexport

───────┬───────────────────────────────────────────────────────────
       │ File: .nbautoexport
───────┼───────────────────────────────────────────────────────────
   1   │ {
   2   │   "export_formats": [
   3   │     "script"
   4   │   ],
   5   │   "organize_by": "extension",
   6   │   "clean": {
   7   │     "exclude": []
   8   │   }
   9   │ }
───────┴───────────────────────────────────────────────────────────

Test

After running it in my blog _notebooks directory, and saving a notebook; a script directory and .py file with notebook content are created

(base) guillaume@LL11LPC0PQARQ:~/git/guillaume_blog/_notebooks$ tree
.
├── .nbautoexport
├── 2022-07-21-jupyter-export-lab-as-py.ipynb
├── README.md
└── script
    └── 2022-07-21-jupyter-export-lab-as-py.py

2022-07-21-jupyter-export-lab-as-py.py has been created as expected

I can now delete .nbautoexport and it won't happen in that directory