old_contents: import os
  
  from flask import Flask
  from flask.ext.sqlalchemy import SQLAlchemy
  
  template_directory = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'frontend/templates')
  static_directory = 'frontend/static'
  
  app = Flask(__name__, template_folder=template_directory, static_folder=static_directory)
  app.config.from_object('config.flask_config')
  db = SQLAlchemy(app, session_options={
      'expire_on_commit': False,
  })
  session = db.session
  
  import models
  from views import *
  
  
  if __name__ == '__main__':
      app.run(host='0.0.0.0', debug=True)
  
new_contents: import os
  
  from flask import Flask
  from flask_sqlalchemy import SQLAlchemy
  
  template_directory = os.path.join(os.path.dirname(os.path.abspath(__file__)), 'frontend/templates')
  static_directory = 'frontend/static'
  
  app = Flask(__name__, template_folder=template_directory, static_folder=static_directory)
  app.config.from_object('config.flask_config')
  db = SQLAlchemy(app, session_options={
      'expire_on_commit': False,
  })
  session = db.session
  
  import models
  from views import *
  
  
  if __name__ == '__main__':
      app.run(host='0.0.0.0', debug=True)
  
subject: Fix deprecated import