Minimal Flask Template

from threading import Thread

import os; from urllib.parse import urlparse

nj_service_url = urlparse(os.environ.get('NEXTJOURNAL_RUNTIME_SERVICE_URL'))

nj_service_url.path

from flask import Flask 

app = Flask('flasky') 

@app.route('/')

def hello_world(): 

  return '<h1>🍾 Hello, Flask!<h1>'

def run():

  app.run('0.0.0.0', 9998)

thread = Thread(target=run)

thread.setDaemon(True)

thread.start()

from IPython.display import IFrame

IFrame(nj_service_url.path, '100%', 400)

pip install flask