Radar plots: Broken documentation for generating example

[vprusso]

The following example in the "Radar chart" documentation page:

import plotly.express as px
import pandas as pd
df = pd.DataFrame(dict(
    r=[1, 5, 2, 2, 3],
    theta=['processing cost','mechanical properties','chemical stability',
           'thermal stability', 'device integration']))
fig = px.line_polar(df, r='r', theta='theta', line_close=True)
fig.show()

yields the following error:

AttributeError: 'DataFrame' object has no attribute 'append'. Did you mean: '_append'?

The reason for this issue is most likely due to the plotly.express component not abiding by the migration guidelines.

[alexcjohnson]

Do you have the latest release, v5.15? This was fixed in #4190

[vprusso]

That was it! I was on 5.14.1. Thank you for the quick response, @alexcjohnson !

Closing.