Flask Application Factory

app.py

import jinja2
from flask import Flask, render_template, request, redirect, url_for
from flask.ext.sqlalchemy import SQLAlchemy

from . import formatting
from .config import get_config


db = SQLAlchemy()


def create_app(config_name):
    app = Flask(__name__)
    config = get_config(config_name)
    app.config.from_object(config)

    config.init_app(app)
    db.init_app(app)

    register_pre_request_handlers(app)
    register_post_request_handlers(app)

    set_error_handlers(app)
    setup_logging(app)
    register_blueprints(app)

    app.jinja_env.undefined = jinja2.StrictUndefined
    setup_jinja_filters(app)

    return app


def register_blueprints(app):
    from . import general
    from . import auth

    app.register_blueprint(general.mod)
    app.register_blueprint(auth.mod)


def set_error_handlers(app):
    @app.errorhandler(404)
    def not_found(error):
        return render_template('errors/not_found.html'), 404

    @app.errorhandler(403)
    def forbidden(error):
        return render_template('errors/forbidden.html'), 403


def register_pre_request_handlers(app):
    pass


def register_post_request_handlers(app):
    pass


def setup_jinja_filters(app):
    app.jinja_env.filters['format_datetime'] = formatting.format_datetime


def setup_logging(app):
    if not app.debug:
        import logging
        from logging.handlers import RotatingFileHandler
        handler = RotatingFileHandler('jmickey-blog.log', maxBytes=10000, backupCount=1)
        handler.setLevel(logging.INFO)
        app.logger.addHandler(handler)

test_models.py

import pytest
from jmickey_blog.app import create_app, db

# import relevant models here

@pytest.fixture
def test_app():
    app = create_app('test')
    with app.app_context():
        db.drop_all()
        db.create_all()
    return app
    

def test_some_thing():
    pass


def test_some_other_thing():
    pass

wsgi.py

#!/usr/bin/env python3

import sys
from jmickey_blog.app import create_app

if len(sys.argv) > 1:
    config_name = sys.argv[1]
else:
    config_name = 'development'

app = create_app(config_name)


def main():
    app.run()

if __name__ == '__main__':
   main()

Can I bug you to paste config.py as well? I'm curious about what .config.get_config() looks like.