A better (non-blueprinting) way of splitting a Flask-RESTful project over a number of files

app.py

from flask import Flask
from flask.ext.restful import Api
from todo import TodoList, Todo
from done import CompleteTaskList, CompleteTask

app = Flask(__name__)
api = Api(app)

api.add_resource(CompleteTaskList, '/dones/')
api.add_resource(CompleteTask, '/dones/<string:id>', endpoint='done_ep')
api.add_resource(TodoList, '/todos/')
api.add_resource(Todo, '/todos/<string:id>', endpoint='todo_ep')

if __name__ == '__main__':
  app.run(debug=True)

done.py

from flask.ext.restful import reqparse, abort, Api, Resource
from flask.ext.restful import fields, marshal, marshal_with, Api

COMPLETED_TASKS = [
    {'id': 'done1', 'task': 'buy milk'},
    {'id': 'done2', 'task': 'buy tea bag(s)'},
    {'id': 'done3', 'task': 'make tea'},
]

def get_done_or_404(id):
    for done in COMPLETED_TASKS:
      if 'id' in done and done['id'] == id:
        return done
    abort(404, message="Complete task {} doesn't exist".format(id))

parser = reqparse.RequestParser()
parser.add_argument('task', type=str)

done_fields = {
  'id': fields.String,
  'task': fields.String,
  'uri': fields.Url('.done_ep')
}

# CompleteTask
#   show a single done item and lets you delete them
class CompleteTask(Resource):
    @marshal_with(done_fields)
    def get(self, id):
        done = get_done_or_404(id)
        return done

    def delete(self, id):
        done = get_done_or_404(id)
        COMPLETED_TASKS.remove(done)
        return '', 204

    @marshal_with(done_fields)
    def put(self, id):
        done = get_done_or_404(id)
        args = parser.parse_args()
        done['task'] = args['task']
        return done, 201

# CompleteTaskList
#   shows a list of all dones, and lets you POST to add new tasks
class CompleteTaskList(Resource):
    @marshal_with(done_fields)
    def get(self):
        return COMPLETED_TASKS

    @marshal_with(done_fields)
    def post(self):
        args = parser.parse_args()
        id = 'done%d' % (len(COMPLETED_TASKS) + 1)
        done = {'id': id, 'task': args['task']}
        COMPLETED_TASKS.append(done)
        return done, 201

todo.py

from flask.ext.restful import reqparse, abort, Api, Resource
from flask.ext.restful import fields, marshal, marshal_with, Api

TODOS = [
    {'id': 'todo1', 'task': 'build an API'},
    {'id': 'todo2', 'task': '?????'},
    {'id': 'todo3', 'task': 'profit!'},
]

def get_todo_or_404(id):
    for todo in TODOS:
      if 'id' in todo and todo['id'] == id:
        return todo
    abort(404, message="Todo {} doesn't exist".format(id))

parser = reqparse.RequestParser()
parser.add_argument('task', type=str)

todo_fields = {
  'id': fields.String,
  'task': fields.String,
  'uri': fields.Url('.todo_ep')
}

# Todo
#   show a single todo item and lets you delete them
class Todo(Resource):
    @marshal_with(todo_fields)
    def get(self, id):
        todo = get_todo_or_404(id)
        return todo

    def delete(self, id):
        todo = get_todo_or_404(id)
        TODOS.remove(todo)
        return '', 204

    @marshal_with(todo_fields)
    def put(self, id):
        todo = get_todo_or_404(id)
        args = parser.parse_args()
        todo['task'] = args['task']
        return todo, 201

# TodoList
#   shows a list of all todos, and lets you POST to add new tasks
class TodoList(Resource):
    @marshal_with(todo_fields)
    def get(self):
        return TODOS

    @marshal_with(todo_fields)
    def post(self):
        args = parser.parse_args()
        id = 'todo%d' % (len(TODOS) + 1)
        todo = {'id': id, 'task': args['task']}
        TODOS.append(todo)
        return todo, 201

Could you tell what is the point can this be ?