circle node with horizontal line in python graphviz

[mandana]

I'm needing to create a graph have a label with line separation horizontal from nodes. The label of nodes import from 2 columns of an Excel-File. This is my Code:

import pandas as pd
from graphviz import Digraph
t = Digraph('T', filename='treegraph.gv')
df = pd.read_excel (r'D:\graphviz\datatree.xlsx')
for index, row in df.iterrows():
t.node(str(row["NodeID"]))

i do the following:

t = Digraph('T', filename='treegraph.gv',node_attr={'shape': 'record'})
for index, row in df.iterrows():
t.node(str(row["NodeID"]),label=str(row["<f0> NodeID | <f1> Variable"]))

using ‘record’ create box but i want to create circle with horizontal line.