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Flask-SQLAlchemy Version 3.0.0 update

• An active Flask application context is always required to access session and engine, regardless of if an application was passed to the constructor.
• Without an application context, creating db from terminal will raise RuntimeError: Working outside of application context. when you try to invoke db.create_all() from python interpreter.
• To counteract this issue, two solutions are presented:
  1. flask shell offers made-ready app context and instance to create db.
  2. Import app from FlaskBlog and create db under app context:

  from flaskblog import app
  with app.app_context():
      db.create_all()