import os
import json
import codecs
from pyecharts import Tree
with codecs.open(os.path.join("chapter04","GDP_data.json"),"r",encoding="utf-8") as f:
j=json.load(f)
data=[j]
tree=Tree(width=1200,height=800)
tree.add("",data)
tree.render('results/4.1树图.html')
“Tree”报红
ImportError: cannot import name 'Tree' from 'pyecharts'
pyecharts的版本是0.1.9.4