plotly.offline.iplot gives a large blank field as its output in Jupyter Notebook/Lab

Question

I am trying to create a Sankey chart in a Jupyter notebook, basing my code on the first example shown here.

I ended up with this, which I can run without getting any

Answer 1

From the quickstart in the README

This displays a figure, while none of the other answers here worked for me:

import plotly.graph_objs as go
fig = go.FigureWidget()
# Display an empty figure
fig

This (in a new cell) modifies the above plot with a bar and line chart:

# Add a scatter chart
fig.add_scatter(y=[2, 1, 4, 3])
# Add a bar chart
fig.add_bar(y=[1, 4, 3, 2])
# Add a title
fig.layout.title = 'Hello FigureWidget'

If that doesn't work, make sure your install is good, e.g. pip install --user --upgrade plotly if you installed with pip