[Django]-Configuring Django to use SQLAlchemy

There are many benefits of using SQLAlchemy instead of Django ORM, but consider developing a built-in-Django choice of SQLAlchemy
(to have something called a production ready)

By the way, Django ORM is going better – in Django 1.11 they added UNION support (a SQL basic operator), so maybe some day there will be no need to change ORM.