Basic flask app python

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

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

0 vote239 views1 answer
Python flask models user
Python Flask
18 votes374 views5 answers
Flask minimal app
Python Flask
0 vote309 views1 answer
Rebinding a list stored in a Flask Session
Python Flask
1 vote279 views1 answer
Flask enumerate index
Python Flask
2 votes255 views1 answer
Flask form
Python Flask
23 votes441 views6 answers
Flask getting started
Python Flask
0 vote320 views1 answer
Flask read form data
Python Flask
0 vote245 views1 answer
Flask multuple parameters
Python Flask
23 votes375 views6 answers
Flask post
Python Flask
-2 votes259 views1 answer
Jwt authentication python flask
Python Flask