“OSERROR Traceback (chamada mais recente)” Respostas de código

OSERROR Traceback (chamada mais recente) em () 9 10 run_with_ngrok (app) ---> 11 app.run ()

from flask import Flask
app = Flask(__name__)

@app.route("/")
def hello(): return "Hello World"

import portpicker
port = portpicker.pick_unused_port()
from google.colab import output
output.serve_kernel_port_as_window(port)

from gevent.pywsgi import WSGIServer
host='localhost'
app_server = WSGIServer((host, port), app)
app_server.serve_forever()