old_contents: from sqlalchemy import create_engine
  from sqlalchemy.orm import scoped_session, sessionmaker
  from sqlalchemy.ext.declarative import declarative_base
  engine0 = create_engine('postgresql://gui:AniTa08@128.175.112.125/anita_0116d', convert_unicode=True)
  Base = declarative_base()
  # engine0 seems can be any database, does not affect the Base.query we use.
  Base.metadata.bind=engine0
  def init_db():
      # import all modules here that might define models so that
      # they will be registered properly on the metadata.  Otherwise
      # you will have to import them first before calling init_db()
  	import app.models
      # Base.metadata.create_all(bind=engine)
      #autoload the database
      # Base.metadata.reflect(bind=engine)
  
new_contents: from sqlalchemy import create_engine
  from sqlalchemy.orm import scoped_session, sessionmaker
  from sqlalchemy.ext.declarative import declarative_base
  engine0 = create_engine('postgresql://gui:AniTa08@67.239.76.218/anita_0710a', convert_unicode=True)
  Base = declarative_base()
  # engine0 seems can be any database, does not affect the Base.query we use.
  Base.metadata.bind=engine0
  def init_db():
      # import all modules here that might define models so that
      # they will be registered properly on the metadata.  Otherwise
      # you will have to import them first before calling init_db()
  	import app.models
      # Base.metadata.create_all(bind=engine)
      #autoload the database
      # Base.metadata.reflect(bind=engine)
  
subject: Update database.py