old_contents: import os
  
  from flask_script import Manager
  from flask_migrate import Migrate, MigrateCommand
  
  from app import db, create_app
  from app import models
  
  app = create_app(config_name=os.getenv('APP_SETTINGS'))
  migrate = Migrate(app, db)
  manager = Manager(app)
  
  manager.add_command('db', MigrateCommand)
  
  if __name__ == '__main__':
      manager.run()
  
new_contents: import os
  
  from flask_script import Manager
  from flask_migrate import Migrate, MigrateCommand
  
  from app import db, create_app
  from app import models
  
  if not os.getenv('APP_SETTINGS'):
      config_name = "development"
  else:
      config_name = os.getenv('APP_SETTINGS')
  
  app = create_app(config_name)
  migrate = Migrate(app, db)
  manager = Manager(app)
  
  manager.add_command('db', MigrateCommand)
  
  if __name__ == '__main__':
      manager.run()
  
subject: Edit configurations