- the structure is clearly a pandas dataframe constructor format
- create a dataframe from it, plus the key series of the nodes
- from this it’s simple to construct a Sankey plot from it
import pandas as pd
import numpy as np
import plotly.graph_objects as go
links = [
{'source': 'start', 'target': 'A', 'value': 2},
{'source': 'A', 'target': 'B', 'value': 1},
{'source': 'A', 'target':'C', 'value':.5}
]
df = pd.DataFrame(links)
nodes = np.unique(df[["source","target"]], axis=None)
nodes = pd.Series(index=nodes, data=range(len(nodes)))
go.Figure(
go.Sankey(
node={"label": nodes.index},
link={
"source": nodes.loc[df["source"]],
"target": nodes.loc[df["target"]],
"value": df["value"],
},
)
)