flask how to run app
$ export FLASK_APP=hello.py
$ python -m flask run
* Running on http://127.0.0.1:5000/flask how to run app
$ export FLASK_APP=hello.py
$ python -m flask run
* Running on http://127.0.0.1:5000/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()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)flask app
# -*- coding: utf-8 -*-
# Librarys
from flask import Flask, render_template
from flask_sqlalchemy import SQLAlchemy
# Variables
app = Flask(__name__)
# Settings
app.config['DEBUG'] = True
app.config['SECRET_KEY'] = 'secret'
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///database.sqlite'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy()
db.init_app(app)
# Views
@app.route('/', methods=('GET', 'POST'))
def index():
return render_template('name.html')
# Run
if __name__ == '__main__':
app.run()Copyright © 2021 Codeinu
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