old_contents: #!/usr/bin/env python
  # encoding: utf-8
  from __future__ import (absolute_import, division,
                          print_function, unicode_literals)
  from flask import Flask
  from app.datatables import datatables
  
  flask_app = Flask('__name__')
  flask_app.register_blueprint(datatables)
  flask_app.run()
  
new_contents: #!/usr/bin/env python
  # encoding: utf-8
  from __future__ import (absolute_import, division,
                          print_function, unicode_literals)
  from flask import Flask
  from app.datatables_blueprint import datatables
  
  flask_app = Flask('__name__')
  flask_app.register_blueprint(datatables)
  flask_app.run()
  
subject: Change blueprint import in local_run.py