old_contents: # -*- coding: utf-8 -*-
  """
  rio.app
  ~~~~~~~~~
  
  Implement of rio app factory based on Flask.
  """
  
  from os import environ
  from flask import Flask
  
  from .core import db
  from .core import celery
  
  def configure_app(app):
      """Configure Flask/Celery application.
  
      * Rio will find environment variable `RIO_SETTINGS` first::
  
          $ export RIO_SETTINGS=/path/to/settings.cfg
          $ rio worker
  
      * If `RIO_SETTINGS` is missing, Rio will try to load configuration
        module in `rio.settings` according to another environment
        variable `RIO_ENV`. Default load `rio.settings.dev`.
  
          $ export RIO_ENV=prod
          $ rio worker
      """
      app.config_from_object('rio.settings.default')
  
      if environ.get('RIO_SETTINGS'):
          app.config_from_envvar(environ.get('RIO_SETTINGS'))
          return
  
      config_map = {
          'dev': 'rio.settings.dev',
          'stag': 'rio.settings.stag',
          'prod': 'rio.settings.prod',
          'test': 'rio.settings.test',
      }
  
      rio_env = environ.get('RIO_ENV', 'dev')
      config = config_map.get(rio_env, config_map['dev'])
      app.config_from_object(config)
  
  
  def register_blueprints(app):
      """Register blueprints to application.
  
      Currently, Rio registered:
  
      * /api/1
      * /dashboard
      """
      from .blueprints.api_v1 import bp as api_v1_bp
      app.register_blueprint(api_v1_bp, url_prefix='/api/1')
  
      from .blueprints.dashboard import bp as dashboard_bp
      app.register_blueprint(dashboard_bp, url_prefix='/dashboard')
  
  def init_core(app):
      """Init core objects."""
      from rio import models # noqa
      db.init_app(app)
      celery.init_app(app)
  
  def create_app():
      """Flask application factory function."""
      app = Flask(__name__)
      app.config_from_envvar = app.config.from_envvar
      app.config_from_object = app.config.from_object
      configure_app(app)
      init_core(app)
      register_blueprints(app)
      return app
  
new_contents: # -*- coding: utf-8 -*-
  """
  rio.app
  ~~~~~~~~~
  
  Implement of rio app factory based on Flask.
  """
  
  from os import environ
  from flask import Flask
  
  from .core import db
  from .core import celery
  
  def configure_app(app):
      """Configure Flask/Celery application.
  
      * Rio will find environment variable `RIO_SETTINGS` first::
  
          $ export RIO_SETTINGS=/path/to/settings.cfg
          $ rio worker
  
      * If `RIO_SETTINGS` is missing, Rio will try to load configuration
        module in `rio.settings` according to another environment
        variable `RIO_ENV`. Default load `rio.settings.dev`.
  
          $ export RIO_ENV=prod
          $ rio worker
      """
      app.config_from_object('rio.settings.default')
  
      if environ.get('RIO_SETTINGS'):
          app.config_from_envvar('RIO_SETTINGS')
          return
  
      config_map = {
          'dev': 'rio.settings.dev',
          'stag': 'rio.settings.stag',
          'prod': 'rio.settings.prod',
          'test': 'rio.settings.test',
      }
  
      rio_env = environ.get('RIO_ENV', 'dev')
      config = config_map.get(rio_env, config_map['dev'])
      app.config_from_object(config)
  
  
  def register_blueprints(app):
      """Register blueprints to application.
  
      Currently, Rio registered:
  
      * /api/1
      * /dashboard
      """
      from .blueprints.api_v1 import bp as api_v1_bp
      app.register_blueprint(api_v1_bp, url_prefix='/api/1')
  
      from .blueprints.dashboard import bp as dashboard_bp
      app.register_blueprint(dashboard_bp, url_prefix='/dashboard')
  
  def init_core(app):
      """Init core objects."""
      from rio import models # noqa
      db.init_app(app)
      celery.init_app(app)
  
  def create_app():
      """Flask application factory function."""
      app = Flask(__name__)
      app.config_from_envvar = app.config.from_envvar
      app.config_from_object = app.config.from_object
      configure_app(app)
      init_core(app)
      register_blueprints(app)
      return app
  
subject: fix RIO_SETTINGS import