Incompatible FigureWidget with ipywidgets 8.0.0rc0

Plotly’s FigureWidget does not appear to be compatible with the upcoming ipywidgets release.

python -m venv .venv
. ./.venv/bin/activate
pip install plotly jupyterlab ipywidgets==8.0.0rc0
jupyer-lab

If using directly the FigureWidget as the output of the cell, the figure is shown by with the following error:

import plotly.graph_objects as go

go.FigureWidget(go.Scatter(x=[1, 2, 3], y=[1, 4, 9]))

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
File /tmp/josh/bug-report/.venv/lib/python3.10/site-packages/IPython/core/formatters.py:921, in IPythonDisplayFormatter.__call__(self, obj)
    919 method = get_real_method(obj, self.print_method)
    920 if method is not None:
--> 921     method()
    922     return True

File /tmp/josh/bug-report/.venv/lib/python3.10/site-packages/plotly/basewidget.py:741, in BaseFigureWidget._ipython_display_(self)
    737 """
    738 Handle rich display of figures in ipython contexts
    739 """
    740 # Override BaseFigure's display to make sure we display the widget version
--> 741 widgets.DOMWidget._ipython_display_(self)

AttributeError: type object 'DOMWidget' has no attribute '_ipython_display_'

On the other hand, if the FigureWidget is used within other widgets, the figure does not appear at all (though there isn’t any error message):

import plotly.graph_objects as go
from ipywidgets import widgets

widgets.VBox([
    widgets.HTML("<p>Start</p>"),
    go.FigureWidget(go.Scatter(x=[1, 2, 3], y=[1, 4, 9])),
    widgets.HTML("<p>End</p>"),
])

This was generated using Plotly 5.7.0 and ipywidgets 8.0.0rc0 all within JupyterLab 3.3.4.

[fabratu]

The same error occurs for plotly 5.8.0 and 5.9.0.

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
File ~/miniforge3/envs/nwk10/lib/python3.10/site-packages/IPython/core/formatters.py:921, in IPythonDisplayFormatter.__call__(self, obj)
    919 method = get_real_method(obj, self.print_method)
    920 if method is not None:
--> 921     method()
    922     return True

File ~/miniforge3/envs/nwk10/lib/python3.10/site-packages/plotly/basewidget.py:741, in BaseFigureWidget._ipython_display_(self)
    737 """
    738 Handle rich display of figures in ipython contexts
    739 """
    740 # Override BaseFigure's display to make sure we display the widget version
--> 741 widgets.DOMWidget._ipython_display_(self)

AttributeError: type object 'DOMWidget' has no attribute '_ipython_display_'

Together with jupyterlab, it is also not so clear how to resolve it. Installing ipywidgets<8.X is not automatically registered with jupyterlab 3.4.X (leading to a blank output).

Error: Module @jupyter-widgets/base, version ^1.2.0 is not registered, however,         2.0.0 is
    loadClass http://localhost:8888/lab/extensions/@jupyter-widgets/jupyterlab-manager/static/134.c8db098d38011369cafa.js?v=c8db098d38011369cafa:1
    loadModelClass http://localhost:8888/lab/extensions/@jupyter-widgets/jupyterlab-manager/static/150.a4d4bb4ed1bc1a3626c7.js?v=a4d4bb4ed1bc1a3626c7:1
    _make_model http://localhost:8888/lab/extensions/@jupyter-widgets/jupyterlab-manager/static/150.a4d4bb4ed1bc1a3626c7.js?v=a4d4bb4ed1bc1a3626c7:1
    new_model http://localhost:8888/lab/extensions/@jupyter-widgets/jupyterlab-manager/static/150.a4d4bb4ed1bc1a3626c7.js?v=a4d4bb4ed1bc1a3626c7:1
    handle_comm_open http://localhost:8888/lab/extensions/@jupyter-widgets/jupyterlab-manager/static/150.a4d4bb4ed1bc1a3626c7.js?v=a4d4bb4ed1bc1a3626c7:1
    _handleCommOpen http://localhost:8888/lab/extensions/@jupyter-widgets/jupyterlab-manager/static/134.c8db098d38011369cafa.js?v=c8db098d38011369cafa:1
    _handleCommOpen http://localhost:8888/static/lab/jlab_core.081dc2b13065c79d8463.js?v=081dc2b13065c79d8463:2

Update: Solved at least jupyterlab + prev. ipywidgets versions by installing package jupyterlab-widgets in version 1.1.1:

pip install ipywidgets==7.7.1 jupyterlab-widgets==1.1.1

[darynwhite]

This is come into production and is causing a problem with a live environment, but I have found this reference as a fix: https://github.com/jupyter-widgets/ipywidgets/issues/3552#issuecomment-1220997361