old_contents: """
  .. module: lemur.extensions
      :copyright: (c) 2015 by Netflix Inc., see AUTHORS for more
      :license: Apache, see LICENSE for more details.
  """
  from flask_sqlalchemy import SQLAlchemy
  db = SQLAlchemy()
  
  from flask_migrate import Migrate
  migrate = Migrate()
  
  from flask_bcrypt import Bcrypt
  bcrypt = Bcrypt()
  
  from flask_principal import Principal
  principal = Principal()
  
  from flask_mail import Mail
  smtp_mail = Mail()
  
  from lemur.metrics import Metrics
  metrics = Metrics()
  
  from raven.contrib.flask import Sentry
  sentry = Sentry()
  
new_contents: """
  .. module: lemur.extensions
      :copyright: (c) 2015 by Netflix Inc., see AUTHORS for more
      :license: Apache, see LICENSE for more details.
  """
  from flask_sqlalchemy import SQLAlchemy
  db = SQLAlchemy()
  
  from flask_migrate import Migrate
  migrate = Migrate()
  
  from flask_bcrypt import Bcrypt
  bcrypt = Bcrypt()
  
  from flask_principal import Principal
  principal = Principal(use_sessions=False)
  
  from flask_mail import Mail
  smtp_mail = Mail()
  
  from lemur.metrics import Metrics
  metrics = Metrics()
  
  from raven.contrib.flask import Sentry
  sentry = Sentry()
  
subject: Disable unused Flask Principal sessions (#881)