ipywidgets compatibility with IPython.display.update_display?

[gnestor]

I created an example notebook to demonstrate update_display for IPython.display.HTML and ipywidgets.widgets.IntProgress and the progress bar doesn't update.

https://gist.github.com/gnestor/867a1bd14125fbeba30dadf9c19c68a9

[jasongrout]

Has the ipython with the update_display command been released yet? Is it in 5.3.0? I'm having troubles importing it.

[gnestor]

No, I think it will be released with 6.0. Here is the PR: ipython/ipython#10048

[deisi]

Does this work by now? I couldn't make it work up to now.
I want to update/change the currently displayed widgets inplace during runtime. E.g. I have a button "load" and once I click it, I want to dynamically add/remove widgets to the currently displayed.

Is this the right function for that?

[deisi]

Ah I found #1764
I think that's what I need. Thx.

[saulshanabrook]

Here is a minimal example to show this behavior:

import ipywidgets
import IPython.display

inn = ipywidgets.IntSlider()
out = ipywidgets.Output()

def create_and_update_display():
        d = IPython.display.display(IPython.display.Code("hi"), display_id=True)
        d.update(IPython.display.Code("there"))

def update_output(value):
    out.clear_output()
    with out:
         create_and_update_display()

    return out.outputs

ipywidgets.dlink((inn, 'value'), (out, 'outputs'), update_output)
ipywidgets.VBox([inn, out])

I would expect it to display there but it displays hi.

This support is needed when you want to wrap some output that is updated asynchronously in a widget.

[gnestor]

Here's a minimal example using interact that works and doesn't depend on update_display:

import altair as alt
import ipywidgets as widgets

cars = alt.load_dataset('cars')

def render_chart(x, y):
    return alt.Chart(cars).mark_point().encode(
        x=x,
        y=y,
        color='Origin',
    )

widgets.interact(render_chart, x=list(cars), y=list(cars));

[martinRenou]

Has this been fixed @vidartf ?