详细说明如何高亮显示悬停节点的路径？

Question

我有一个图表，看起来像这样：

生成图形的代码段如下所示：

import sys
import os

import numpy
import itertools
from lxml import etree 
import lxml.html

import re

import networkx as nx
import matplotlib.pyplot as plt

import pygraphviz

from networkx.drawing.nx_agraph import graphviz_layout

import plotly.graph_objects as go

G = nx.DiGraph()

#nodes and edges added around here

pos=graphviz_layout(G, prog='dot')

edge_trace = go.Scatter(
    x=edge_x, y=edge_y,
    line=dict(width=0.5, color='#888'),
    hoverinfo='none',
    mode='lines')

node_trace = go.Scatter(
    x=node_x, y=node_y,
    mode='markers',
    hoverinfo='text',
    marker=dict(size=10,line_width=2)
    )
            
node_trace.marker.color = color_list
node_trace.text = node_text

config = dict({'scrollZoom': True})

fig = go.Figure(data=[edge_trace, node_trace],
             layout=go.Layout(
                title='Comparison Results: ',
                titlefont_size=16,
                showlegend=False,
                hovermode='closest',
                margin=dict(b=80,l=10,r=10,t=40),
                annotations=[ dict(
                    text="",
                    showarrow=False,
                    xref="paper", yref="paper",
                    x=0.005, y=-0.002 ) ],
                xaxis=dict(showgrid=False, zeroline=False, showticklabels=False),
                yaxis=dict(showgrid=False, zeroline=False, showticklabels=False))
                )

fig.update_layout(dragmode='pan')

fig.show(config=config)

如何使鼠标悬停在节点上时，一直到根节点的路径都高亮显示

非常感谢您的帮助。提前谢谢