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

7 votes125 views6 answers
Venv
Python
0 vote128 views1 answer
Python print not working
Python
10 votes107 views1 answer
Registering static files in jango
Python
2 votes122 views4 answers
How to read second sheets of excel using python
Python
0 vote133 views1 answer
Save dictionary to file numpy
Python
2 votes116 views1 answer
Python read text file next line
Python
0 vote144 views1 answer
Executing a python script interactively
Python
0 vote482 views1 answer
Str='python' print(len(str[1:-2])) will print ____
Python
1 vote205 views1 answer
Change axis and axis label color matplotlib
Python
2 votes129 views1 answer
Basic String Functions in python
Python