hv.extension(inline=False) not working

[michaelaye]

ALL software version info

Software Version Info

* holoviews 1.19.1
* bokeh 3.5.2
* jupyter_bokeh 4.0.5

Description of expected behavior and the observed behavior

• Expected: notebook does not contain bokeh javascript
• Observed: Empty new notebook contains bokeh javascript despite inline=False

Complete, minimal, self-contained example code that reproduces the issue

import holoviews as hv
hv.extension("bokeh", inline=False, logo=False)

Stack traceback and/or browser JavaScript console output

Screenshots or screencasts of the bug in action

     "data": {
      "application/javascript": [
       "(function(root) {\n",
       "  function now() {\n",
       "    return new Date();\n",
       "  }\n",
       "\n",
       "  const force = true;\n",
       "  const py_version = '3.5.2'.replace('rc', '-rc.').replace('.dev', '-dev.');\n",
       "  const reloading = false;\n",
       "  const Bokeh = root.Bokeh;\n",
       "\n",
       "  // Set a timeout for this load but only if we are not already initializing\n",
       "  if (typeof (root._bokeh_timeout) === \"undefined\" || (force || !root._bokeh_is_initializing)) {\n",
       "    root._bokeh_timeout = Date.now() + 5000;\n",
       "    root._bokeh_failed_load = false;\n",
       "  }\n",

• I may be interested in making a pull request to address this

[hoxbro]

Expected: notebook does not contain bokeh javascript

This is a wrong expectation. inline=True (which is the default) means that the libraries are not embedded into the file. You still need a bit of JavaScript to run.

[michaelaye]

i see, thanks for confirming. I asked this here a year ago, but alas, nobody replied.

[hoxbro]

That must have fallen through the cracks. Sorry about that.

[michaelaye]

oh i don't expect the holoviews team to have time to read all discussion, was just hoping that somebody knows and replies...

[michaelaye]

followup: is it normal/as-designed, that a 2nd time execution of a cell with import hvplot.xarray removes that minimal Javascript again from the notebook?

[michaelaye]

which interestingly does NOT happen with import holoviews as hv;hv.extension(inline=False)

[hoxbro]

This will be improved in the next hvplot release, so it is added each time you import it. See holoviz/hvplot#1359