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()
python basic flask app
# Imports necessary libraries
from flask import Flask
# Define the app
app = Flask(__name__)
# Get a welcoming message once you start the server.
@app.route('/')
def home():
return 'Home sweet home!'
# If the file is run directly,start the app.
if __name__ == '__main__':
app.run(Debug=True)
# To execute, run the file. Then go to 127.0.0.1:5000 in your browser and look at a welcoming message.
flask.pocoo.org quickstart
from flask import Flask
app = Flask(__name__)
@app.route('/')
def hello_world():
return 'Hello, World!'
default flask app
from flask import Flask
app = Flask(__name__)
@app.route('/')
def index():
return 'Flask'
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()
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