old_contents: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  
  from flask import Flask
  import flask_restful
  import os
  
  #from api.database import db
  from api.v1 import api_v1, api_v1_bp, API_VERSION_V1
  from api.v2 import api_v2, api_v2_bp, API_VERSION_V2
  
  
  def create_app(environment=None):
      app = Flask(__name__)
  
      if not environment:
          environment = os.environ.get('FLASK_CONFIG')
      if not environment:
          environment = 'development'
      app.config.from_object('api.config.{}'.format(environment.capitalize()))
      app.config.from_pyfile(
          'config_{}.py'.format(environment.lower()),
          silent=True
          )
  
      app.register_blueprint(
          api_v1_bp,
          url_prefix='{prefix}/v{version}'.format(
              prefix=app.config['URL_PREFIX'],
              version=API_VERSION_V1))
  
      app.register_blueprint(
          api_v2_bp,
          url_prefix='{prefix}/v{version}'.format(
              prefix=app.config['URL_PREFIX'],
              version=API_VERSION_V2))
  
      return app
  
new_contents: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  
  from flask import Flask
  import flask_restful
  import os
  
  #from api.database import db
  from api.v1 import api_v1, api_v1_bp, API_VERSION_V1
  from api.v2 import api_v2, api_v2_bp, API_VERSION_V2
  
  
  def create_app(environment=None):
      app = Flask(__name__)
  
      if not environment:
          environment = os.environ.get('FLASK_CONFIG', 'development')
      app.config.from_object('api.config.{}'.format(environment.capitalize()))
      app.config.from_pyfile(
          'config_{}.py'.format(environment.lower()),
          silent=True
          )
  
      app.register_blueprint(
          api_v1_bp,
          url_prefix='{prefix}/v{version}'.format(
              prefix=app.config['URL_PREFIX'],
              version=API_VERSION_V1))
  
      app.register_blueprint(
          api_v2_bp,
          url_prefix='{prefix}/v{version}'.format(
              prefix=app.config['URL_PREFIX'],
              version=API_VERSION_V2))
  
      return app
  
subject: Update __init__.py