I am experimenting with Flask coming from Django and I really like it. There is just one problem that I ran into. I read the flask docs and the part about big applications or something like that and it explains a way to divide your project in packages, each one with its own static and templates folder as well as its own views module. the thing is that I cannot find a way that works to put the models in there using SQLAlchemy with the Flask extension. It works from the interactive prompt to create the tables, but when i use it inside the code it breaks. So I wanted to know how more experienced Flask developers solved this.
While I'm not ready to announce because I'm still actively working on refining the samples, you would probably benefit from the flask-skeleton project that I'm developing. I got tired of reinventing the wheel with regards to bootstrapping Flask websites so I started to a complete sample project that uses my best practices. I haven't added any unit tests yet, but this should be good enough for you to start with. Please send me feedback or suggestions if you come across any.
Actually I found out what I was looking for. Instead of importing flaskext.sqlalchemy on the main
__init__ you import it in the model. After that you import the model in the main
__init__ and with db.init_app() start it and pass the app configurations. It is not as flexible as the skeleton shown in @Sean post, but it was what I wanted to know. If i weren't toying around probably the skeleton would be the one I'd use.