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qacek

Are you referring to editing text files or in notebooks?

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I'm interested in any jupyter workflows that allow me to use my text editor and a terminal-based language REPL/shell.

In general,

- I want to use my text editor to write any non-trivial function/class implementations.

- I want any substantial amount of code to be held and version-controlled in regular files of code, not inside JSON.

- I want to use the notebook for display (tables, figures, rendered markdown/LaTeX, etc)

So the most important question is:

- How do I conveniently work on a code file in my text editor, and then execute code in the notebook so that the most recent variable definitions in the code file are honored during the jupyter execution?

Also

- How do I start a terminal-based REPL/shell that is sharing the same kernel as the notebook? (Relevant to text editors, because this might be for example an ipython shell running inside emacs, allowing me to easily evaluate fragments of code in the text editor.)

There are more sophisticated things one could imagine, but I don't think I want (e.g. evaluate a cell/notebook from the text editor, create a cell from text editor).

I see, well you might get a better answer from a Jupyter dev. I use the autoreload extension to automagically pull in my lastest code [1]. It usually works. For your second question you can connect multiple frontends to the same kernel [2].

[1] https://ipython.readthedocs.io/en/stable/config/extensions/a...

[2] https://jupyter-notebook.readthedocs.io/en/stable/examples/N...

Thanks, yes I'm somewhat familiar with the story under the current jupyter notebook. E.g. when I'm feeling very energetic, I sometimes manage to come up with the right series of shell invocations to get a notebook running in a browser and a terminal python shell sharing the same kernel via `jupyter console --existing`, with the right python version and virtualenv. Or even have the shell running in emacs, though there's usually something broken somewhere along the way in my setup.

I'm vaguely aware of autoreload but it seemed a bit confusing; there are various similar-sounding alternatives.

> How do I start a terminal-based REPL/shell that is sharing the same kernel as the notebook? (Relevant to text editors, because this might be for example an ipython shell running inside emacs, allowing me to easily evaluate fragments of code in the text editor.)

FYI, if you want to do both things inside of JupyterLab, you can easily start a console in JupyterLab connected to the same kernel as the notebook in three different ways: right-click in the notebook and select "New console for notebook". Or from the notebook, select the main menu File>"New Console For Notebook". Or simply start a console from the File>New menu and choose the notebook's kernel from the dropdown.

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