spacy中的依存句法分析可视化

运行久了会报错，运行后如图2，localhost5000在浏览器无法打开。有大神指定怎么搞嘛？

import spacy
from spacy import displacy

nlp = spacy.load("en_core_web_sm")
doc = nlp(u"book me a flight to Gra")


displacy.serve(doc, style= "dep")

Using the 'dep' visualizer
Serving on http://0.0.0.0:5000 ...