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

6 votes280 views1 answer
Cors error in flask
Python Flask
1 vote267 views2 answers
Flask bootstrap
Python Flask
0 vote280 views1 answer
Flask on gevent over https
Python Flask
1 vote266 views1 answer
Procfile flask
Python Flask
-1 vote255 views2 answers
Model deployment with flask
Python Flask
18 votes305 views5 answers
Flask minimal app
Python Flask
3 votes262 views3 answers
Import flask
Python Flask
0 vote324 views1 answer
Problems with flask bootstrap
Python Flask
3 votes246 views1 answer
Display flask across network
Python Flask
2 votes247 views1 answer
Flask import jsonify
Python Flask