Python Forum

I want to draw a tree in python graphviz. I have data in excel with 3 columns. The first column is Tail, the second is Head and the third column is Label of edges.

I know how to draw tree in graphviz but the data is big and i can not identify by hand. I want to use loop 'for' to identify nodes,edges and labels.
How can i do this? I wrote these code for small data.but it doesn't work.

from graphviz import Digraph
d=Digraph()
node=[0,1,2,3,4]             //this data is big but i did for small and it imports from excel
edges=['01','02','13','14'] //this data is big but i did for small
for i in range(1,6):
   d.node('node','node')
for j in range(1,6):
  d.edges(['edges'])

print(d.source)

see: https://graphviz.readthedocs.io/en/stabl...l#btree-py

Thank you very much. I found how to create 300 nodes but i don't know how to make them.

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how to make edges.
for example in d.edges('tail','head',label='x12')i want to call 'tail' ,'head' and label from excel