Jupyterlab compatibility ?

[stonebig]

is Holoviews (especially widgets) compatible with coming soon Jupyterlab infrastructural change ?

[jbednar]

If it isn't, we'll make a version that is compatible.

[philippjfr]

Currently this is not properly supported as the widgets fail to display and comms do not work correctly.

[philippjfr]

This will get tackled in our widget code rewrite, which is scheduled for 1.8.

[stonebig]

Jupyterlab looks a little bit useless without Holoviews widgets

[stonebig]

any hope for coming 1.9.0 ?

[philippjfr]

None unfortunately, we're waiting until bokeh solves Jupyterlab comms issues so we can copy them. We've decided it's not worth getting HoloViews only partially working in JLab.

[athornton]

Can you give a pointer to the JL comm issues? I'm interested in at least sniffing out how large a problem it is, and I'd like to get a feel for whether this is something likely to be resolved or whether it is a when-pigs-fly request. We'd obviously prefer to use JupyterLab but if Classic is the only way it's ever gonna work, well, that's worth knowing.

[jbednar]

Oh, we'll definitely make things work well in JupyterLab, somehow! We're focused on other things for the moment, but there is no option for not supporting JupyterLab.

[rserbitar]

Any plans to add jupyterlab support before their beta release (which is no scheduled for christmas)?

[philippjfr]

@rserbitar Very unlikely unfortunately. We're waiting on bokeh to add support for JupyterLab and that effort appears to have stalled for the time being. I'll try to revisit early next year if there's still been no progress.

[rserbitar]

I thought this was already addressed: bokeh/bokeh#6700

[philippjfr]

Well partially, static plots can be displayed but a lot of the power in HoloViews comes from being able to dynamically update plots, which relies on Jupyter comms. Those do not yet work with bokeh in JupyterLab.

[akhmerov]

@philippjfr aren't holoviews widgets completely separate from the bokeh interaction with jlab?

[rserbitar]

Jupyterlab is in Beta now. Is there an issue on bokeh that corresponds to the features needed to make holoview compatible with jupyterlab? Can anyone point me in the right direction?

[jbednar]

See #2368 (WIP)

[philippjfr]

JupyterLab support now landing in 1.10, we should have a dev release out soon. To try it out on master you can install the extension like so:

conda install -c conda-forge jupyterlab
jupyter labextension install @pyviz/jupyterlab_holoviews

To get DynamicMaps and streams working you will have to wait for bokeh 0.12.15 however.

[stonebig]

please make it available on pypi or in a bokeh way style

pip install --pre -i https://pypi.anaconda.org/holoviews/channel/dev/simple holoviews

[stonebig]

and don't we need a bokeh dev build too ?

and is "jupyter labextension install @pyviz/jupyterlab_holoviews" final name ?

[jlstevens]

and don't we need a bokeh dev build too ?

You will do. The relevant PR isn't even merged yet!