Help! How do I get a working version of Holoviews?

[ea42gh]

I am unable to restore a working environment with whatever combination of versions of jupyterlab, holoviews, bokeh might work. @philippjfr might I ask you to comment please?

What @pyviz/jupyterlab_pyviz labextension is compatible with jupyterlab 3.6?

I tried downgrading jupyterlab to 3.6, ending up with a clean reinstall of jupyter and holoviews. The problem I am running into is that it tried and failed to install pyviz/jupyterlab/pyviz 3.0.0 with a “not compatible with jupyterlab version” message. How would I do a working clean install of jupyterlab and holoviews using pip (i.e., not using conda)?

Hvplot No output in jupyter

I really don’t get it: just upgraded everything again to be able to use my tools: {‘panel’: ‘1.3.6’, ‘holoviews’: ‘1.18.1’, ‘matplotlib’: ‘3.8.2’, ‘bokeh’: ‘3.3.2’, ‘numpy’: ‘1.26.2’}, jupyterlab: {‘panel’: ‘1.3.6’, ‘holoviews’: ‘1.18.1’, ‘matplotlib’: ‘3.8.2’, ‘bokeh’: ‘3.3.2’, ‘numpy’: ‘1.26.2’} holoviews graph and panel do not display reloading the notebook displayed them once, and never again. moved code into a new directory with a gitlab repository holoviews graphs and panels display…

[ea42gh]

Some possibly relevant console messages are:

• remoteEntry.2598bb44edcc46dad172.js:1 Unsatisfied version 6.0.6 from @jupyter-widgets/jupyterlab-manager of shared singleton module @jupyter-widgets/base (required ^1.1.10 || ^2 || ^3 || ^4.0.0)
• Failed to fetch ipywidgets through the “jupyter.widget.control” comm channel, fallback to fetching individual model state. Reason: Control comm was closed too early
• 134.a63a8d293fb35a52dc25.js?v=a63a8d293fb35a52dc25:1 Error: widget model not found
  at f.get_model (336.ebc7a55ea1768712771f.js?v=ebc7a55ea1768712771f:1:3461)
  at w.renderModel (134.a63a8d293fb35a52dc25.js?v=a63a8d293fb35a
• Bokeh: BokehJS was loaded multiple times but one version failed to initialize.
• Panel: ERROR: Unable to run Panel code because Bokeh or Panel library is missing

[ahuang11]

I think you may try filing an issue. Also, if you haven’t tried, clear all output in Jupyter notebook + clear browser cache.

[ea42gh]

Hi @ahuang11, thank you for responding.
I had tried clearing the browser cache before.

Currently, the graphs display again. What I did:

• cleared the cache
• stopped all running kernels in jupyterlab (this appears to be key)
• restarted the kernel of just one notebook

I’ll report back if I figure out a reliable way to reproduce the problem,
(or if I can’t get back to a working state). Right now, I would not know
what kind of issue to file!

[ahuang11]

Also, if you remove the first ds.hvplot call, the other plots will also disappear. Discord
Could be related.

[ea42gh]

Just keeping track of symptoms:

• after running for several days, the problem reappeared
• stopped all running kernels, cleared cache, restarted one kernel, to no avail
• closed down running kernel, cleared cache, exited jupyter lab
• restarted jupyter lab, restarted the kernel in the one open notebook: system is working again.

[philippjfr]

Did this ever get resolved? Sorry I missed this.

[ea42gh]

@philipjr
No. It just happened again yesterday.
One clue: unless I first close all notebooks but one in jupyter-lab
before restarting jupyter-lab, the problem will persist…