How to override python pyramid app config settings?

Question

I am a newbie at Python Pyramid and working on improving an existing app that we have. I have an app main function defined like below:

def web_main(global_config, **settings):
  config = Configurator(settings=settings, root_factory=RootFactory)
  ...
  ...
  config.add_request_method(get_user, "user", reify=True)
  config.set_authentication_policy(authn_policy)
  config.set_authorization_policy(authz_policy)
  ...
  app = config.make_wsgi_app()
  return app

I want to override get_user request method with my implementation and also want to use my own authentication policy.

With that I was thinking to do write a function like below:

def my_web_main(global_config, **settings):
  app = web_main(global_config, **settings)
  <Set Overrides here>
  return app

Inside the config.ini file I will call my_web_main to start this app.

I have not been able to figure out how to set the overrides. Would appreciate some inputs on this.

Answer 1

The configurator is where you should perform overrides. So the answer is to modify web_main or define your own. Pyramid has an override mechanism via config.include() , but it does not work one level higher where you're attempting to override things with a built wsgi-app. You have to do it at the config level.