We will use the application factory pattern again in this chapter; let's add our skeleton create_app method to the application/__init__.py module and include our Flask-SQLAlchemy database initialization as well:
from flask import Flask
from flask.ext.sqlalchemy import SQLAlchemy
from flask.ext.bcrypt import Bcrypt
# Initialize the db extension, but without configuring
# it with an application instance.
db = SQLAlchemy()
flask_bcrypt = Bcrypt()
def create_app(config=None):
app = Flask(__name__)
if config is not None:
app.config.from_object(config)
db.init_app(app)
flask_bcrypt.init_app(app)
return appLet's include our barebones run.py:
from application import create_app app = create_app() app.run()
This should give us the ability to run the application using the built-in Werkzeug application server via the following code:
$ python run.py