How to make a chord chart in Bokeh 0.13?

Question

Previous versions of Bokeh seem to have chord charts:

https://docs.bokeh.org/en/0.12.4/docs/gallery/chord_chart.html

But not the latest version?

https://docs.bokeh.org/en/latest/docs/gallery/chord_chart.html [404s]

Answer 1

Chord was part of bokeh.charts which was deprecated and removed many release ago. Most things that used to be in the old bokeh.charts are now simple to accomplish with the stable bokeh.plotting API, but Chord is one of the few exceptions. I would suggest looking at Holoviews, which is a very high level API that can output chord plots as Bokeh (and is officially endorsed by the Bokeh project):

http://holoviews.org/reference/elements/bokeh/Chord.html

With Holoviews, chord plots are typically a line or two:

%%opts Chord [label_index='name' color_index='index' edge_color_index='source'] 
%%opts Chord (cmap='Category20' edge_cmap='Category20')
hv.Chord((links, nodes)).select(value=(5, None))