Using the Graphviz library and in pandas and jupyternotebook this is the dataset values 

this is the output required

 

however this is my code but i am getting error and need help with it 

code below

import pandas as pd
from graphviz import Digraph

 

# Load the data
#df = pd.read_csv("dataframe.csv")
df = pd.read_csv('dataframe.csv', index_col = "ID") # df is "data frame"

 

#replace all occurances of "Not A Number" (NaN) with "Nothing" (None)
df.replace({float("nan"): None}, inplace=True) 

 

# Create the graph
graph = Digraph(format='jpg')

 

# Create Nodes for all entries in dataframe
nodeMap = {None:None}

 

#process your data frame from the bottom up
print("Creating Nodes for Tree")
for index in reversed(df.index.values):
   #print("Creating Node for: ",index)
   nodeMap[index] = Node(df.loc[index]["Label"],nodeMap[df.loc[index]["Left Child"]],nodeMap[df.loc[index]["Right Child"]]) - NameError: name 'Node' is not defined

 

ID root Label Right Child Left Child Is it a person not a thing? person thing Real not fictional? washington frodo person washington George Washington Frodo Baggins Bigger than a breadbox? truck A truck A cell phone frodo thing truck cellphone cellphone