If you have been more than five seconds on r/dataisbeautiful/, you will have probably encountered a Sankey plot. Everyone uses to track their expenses, job searching and every multi step processes. Indeed, it is very suitable to visualize the progression of events and their outcome.
And in my opinion, they look great!
Therefore, let’s see how to do in Python:
Jupyter Notebook here
In matplotlib
Personally, in matplotlib they look awful.

The above plot is probably closer to the original concept of a Sankey plot (originally invented in 1898), but it is not something I would use in a publication.
The other solution is to use the library Plotly.
In Plotly
Therefore, without further ado:
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