Suppose I've a Jupyter notebook loaded in a browser. Is that possible to somehow run a command line ipython session which connect to the same kernel instance as the one used by the notebook (i.e they can see the same set of variables)? Thanks.
Yes! After starting/loading an IPython notebook, open up a terminal and connect a command line ipython session using the --existing parameter:
jupyter console --existing
By default, it will connect to the latest started IPython kernel. To select a different kernel to connect to, look in the log of the Jupyter notebook for lines like these:
[I 09:47:54.462 NotebookApp] Kernel started: 06c9ffae-ae9f-4c22-93c0-4eacf23672b1
To connect to this kernel, do:
jupyter console --existing 06c9ffae-ae9f-4c22-93c0-4eacf23672b1