Simple flask app

# Extremely simple flask application, will display 'Hello World!' on the screen when you run it
# Access it by running it, then going to whatever port its running on (It'll say which port it's running on).
from flask import Flask
app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'Hello, World!'

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

Source: flask.palletsprojects.com

Flask tutorial

from flask import Flask
app = Flask(__name__)

@app.route('/')
def hello_world():
   return 'Hello World’

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

Source: tutorialspoint.com

Flask how to run app

$ export FLASK_APP=hello.py
$ python -m flask run
 * Running on http://127.0.0.1:5000/

Source: flask.palletsprojects.com

Default flask app

from flask import Flask
app = Flask(__name__)

@app.route('/')
def index():
    return 'Flask'

Flask.pocoo.org quickstart

from flask import Flask
app = Flask(__name__)

@app.route('/')
def hello_world():
    return 'Hello, World!'

Source: flask.palletsprojects.com

Python flask sample application

from flask import *
app = Flask(__name__)

@app.route("/")
def index():
  return "<h1>Hello World</h1>"

if __name__ == "__main__":
  app.run(host="0.0.0.0", port=8080, debug=False)

Similar codes

1 vote253 views1 answer
Flask send client to another web page
Python Flask
1 vote224 views2 answers
Flask console log
Python Flask
0 vote230 views1 answer
Flask migrate multiple heads
Python Flask
1 vote252 views1 answer
Flask sending post request
Python Flask
0 vote236 views1 answer
Pycharm flask invalid or missing encoding declaration
Python Flask
1 vote278 views2 answers
Flask print to console
Python Flask
27 votes351 views4 answers
Flask tutorial
Python Flask
0 vote235 views1 answer
Change form type flask from text to selection flask admin
Python Flask
-2 votes244 views1 answer
Jwt authentication python flask
Python Flask
0 vote288 views2 answers
How to close a flask web server with python
Python Flask