Flask tutorial

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.pocoo.org quickstart

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)

Similar codes

1 vote122 views1 answer
Flask click submit button
Python Flask
12 votes259 views4 answers
Flask debug
Python Flask
0 vote188 views2 answers
Where should favicon.ico be placed in flask app
Python Flask
0 vote177 views1 answer
Flask development mode
Python Flask
2 votes171 views1 answer
Run flask application in development mode stack overflow
Python Flask
15 votes278 views3 answers
Python flask sample application
Python Flask
23 votes283 views5 answers
Flask app example
Python Flask
2 votes372 views1 answer
Minimal flask application import
Python Flask
0 vote179 views1 answer
Use mark down with flask
Python Flask
3 votes165 views3 answers
Flask migrate install
Python Flask