Add notebook section to PyCharm guide

[cdeil]

@MarcSkovMadsen - thank you for adding this in #6525 !

https://holoviz-dev.github.io/panel/how_to/editor/pycharm_configure.html

When I try to use it from a notebook in PyCharm (with the EAP release of the pro version that can be freely installed) I get this error:

/Users/cdeil/anaconda3/envs/panel-tutorial/bin/python -m jupyter notebook --notebook-dir=/Users/cdeil/code/oss/panel --no-browser
Jupyter command jupyter-notebook not found.

I do have jupyterlab installed, but apparently I need a second package. Would be great to mention this in the docs, similar to the VSCode page that explains how to get notebooks to work.

[cdeil]

With this it works. :-)

https://pypi.org/project/notebook/
https://anaconda.org/conda-forge/notebook

pip install notebook
conda install conda-forge::notebook

Since many years I only conda or pip install jupyterlab so for me this was surprising that I need the extra package.

Not sure what package exactly and where it should be recommended to install it?

@MarcSkovMadsen - Note that with the current docs neither the "jupyterlab" nor the "notebook" install is mentioned, so it's possible new users run into these install issues and if they don't know much about pip or conda or whick package to use they could get stuck.

https://holoviz-dev.github.io/panel/getting_started/installation.html
https://holoviz-dev.github.io/panel/tutorials/basic/index.html#prerequisites

[MarcSkovMadsen]

That are great comments. I'm not a pycharm user my self (but 40% of colleagues are) so have to figure out how the notebook extension works?

[cdeil]

My understanding is that notebooks in PyCharm are built-in feature (not an extension) and only available in the Professional version. Same here - about half of the colleagues use PyCharm Pro.

I wanted to try out the PyCharm Pro profiling features to understand what's going on with sessions, threads, gc for #6502 but not sure if I'll find the time to dig in this week.