Determine what version of jupyter notebook the code is currently being run in

[paddymul]

Many times users don't know if they are running in a Jupyter Notebook, Jupyter Lab, Google Colab, or VSCode notebook. There are many other notebook environments. All with slight incompatibilities that make it difficult to debug for notebook extension maintainers.

I wrote a convenience function for my library that does this. Do you think this would be useful for watermark?
https://github.com/paddymul/buckaroo/blob/main/buckaroo/__init__.py#L50-L67

[rasbt]

Thanks for sharing. This looks nice and elegant. And yes, I think this could indeed be a useful addition. Perhaps under a --jupyter_env flag.