hello

hello.py

from flask import *
app = Flask(__name__)

@app.route("/")
def main():
    return render_template("Hello Flask!")
 
app.run(debug=True)

To launch, either double-click in Windows explorer, or open with Python:



Then navigate to port 5000 (default Flask port) of the loopback / localhost IP address in browser:

http://127.0.0.1:5000/