From Fedora Project Wiki
Setup
Create directory to hold virtualenv
mkdir python_web cd python_web
Create virtualenv & install flask
wget https://raw.github.com/pypa/virtualenv/master/virtualenv.py python virtualenv.py flask source flask/bin/activate pip install flask flask-sqlalchemy flask-wtf
Hello World
Create directory/file structure
mkdir hello_world cd hello_world
Dummy App
app_01.py
from flask import Flask
DEBUG = True
HOST = '0.0.0.0'
app = Flask(__name__)
app.config.from_object(__name__)
@app.route('/')
@app.route('/index')
def index():
return "Hello, World!"
if __name__ == '__main__':
app.run(host = app.config['HOST'], debug = app.config['DEBUG'])
HTML
app_02.py
from flask import Flask
HOST = '0.0.0.0'
DEBUG = True
app = Flask(__name__)
app.config.from_object(__name__)
@app.route('/')
@app.route('/index')
def index():
args = {'user': 'John Doe'}
page = """
<html>
<head>
<title>Home Page</title>
</head>
<body>
<h1>Hello, %(user)s</h1>
</body>
</html>
"""
return page % args
if __name__ == '__main__':
app.run(host = app.config['HOST'], debug = app.config['DEBUG'])
Templates
http://jinja.pocoo.org/docs/templates/
Create a directory to store templates
mkdir templates