Continuous Updating.ipynb does not update

[pepijndevos]

Hey I want to write a notebook for plotting some info that is live updated on the server. I found the following example: bokeh/Continuous Updating.ipynb at main · bokeh/bokeh · GitHub

This looks perfect! Except it doesn’t appear to work. What I did:

pip install jupyterlab bokeh
jupyter-lab

Then I open the downloaded notebook. I run the first few cells, a plot appears with some random circles.
Then I run the cell with the endless loop that appears to push new data to the plot, but the plot does not update at all. Only when I interrupt and then rerun the plotting cell does it update the plot with the new title and scaled circles.

So how can I actually have a continuously updating plot?

[pepijndevos]

Okay, problem solved. In a classic notebook it works fine, but in jupyter lab it does not.
Turns out you have to install a seperate jupyter_bokeh extension to make it work.
This is actually documented in Using with Jupyter — Bokeh 2.4.2 Documentation

For funsies I also tried VS Code but that did not work, but whatever.

[Bryan]

Correct, the Jupyter project made changes on their end that make requiring an extension unavoidable. Note that you can also embed full Bokeh server applications:

bokeh/notebook_embed.ipynb at branch-3.0 · bokeh/bokeh · GitHub