$ heroku_flask.sh

$ heroku_flask.bat

• Procfile
• runtime.txt
• app.py
• wsgi.py

web: gunicorn wsgi:app

python-3.6.9

from flask import Flask

app = Flask(__name__)


@app.route("/")
def home_view():
    return "<h1>Welcome to HK World</h1>"

from app import app

if __name__ == "__main__":
    app.run()

Login to heroku CLI using

$ heroku login

Now, Create a unique name for your Web app.

$ heroku create heroku-flask-app

Push your code from local to the heroku remote

$ git push heroku master