Flask app example

# 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 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

Flask example

from flask import Flask
app = Flask(__name__)

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

Source: flask.palletsprojects.com

Basic flask app python

#Import Flask, if not then install and import.

import os
try:
  from flask import *
except:
  os.system("pip3 install flask")
  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)

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 vote255 views1 answer
Django return only part of string
Python Django
0 vote202 views1 answer
Python script to download files from website
Python
0 vote204 views1 answer
Pyqt5 qpush button pressed
Python
0 vote236 views1 answer
Add vertical line to horizontal graph
Python
0 vote246 views1 answer
Access nested set with array params python
Python
22 votes299 views6 answers
How to check django version
Python Django
0 vote232 views1 answer
Code converter C++ to python
Python
0 vote239 views2 answers
How to detect if the space button is pressed in pygame
Python
0 vote237 views1 answer
Chromebook install pip
Python
20 votes206 views6 answers
Python last item in list
Python