'How to draw a triangular multilayered diagram using a dataframe in python?

I have a Dataframe:

        Level
 C2       I
 C4       I
 C3      II
 C5      II
 C1     III

Now I need to present this data in a triangular multilayer diagram(as shown below). Is this possible to make such diagram or something very similar in python?

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'How to draw a triangular multilayered diagram using a dataframe in python?

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