old_contents: import os
  from pyramid.config import Configurator
  from sqlalchemy import engine_from_config
  
  from .models import DBSession, Base
  
  
  def main(global_config, **settings):
      '''This function returns a Pyramid WSGI application.'''
      settings['sqlalchemy.url'] = os.environ.get('DATABASE_URL')
      engine = engine_from_config(settings, 'sqlalchemy.')
      DBSession.configure(bind=engine)
      Base.metadata.bind = engine
      config = Configurator(settings=settings)
      config.include('pyramid_jinja2')
      config.add_static_view('static', 'static', cache_max_age=3600)
      config.add_route('index', '/')
      config.add_route('request_scene', '/request/{scene_id}/{b1}{b2}{b3}')
      config.add_route('done', '/done')
      config.add_route('scene_status', '/scene/{scene_id})
      config.scan()
      return config.make_wsgi_app()
  
new_contents: import os
  from pyramid.config import Configurator
  from sqlalchemy import engine_from_config
  
  from .models import DBSession, Base
  
  
  def main(global_config, **settings):
      '''This function returns a Pyramid WSGI application.'''
      settings['sqlalchemy.url'] = os.environ.get('DATABASE_URL')
      engine = engine_from_config(settings, 'sqlalchemy.')
      DBSession.configure(bind=engine)
      Base.metadata.bind = engine
      config = Configurator(settings=settings)
      config.include('pyramid_jinja2')
      config.add_static_view('static', 'static', cache_max_age=3600)
      config.add_route('index', '/')
      config.add_route('request_scene', '/request/{scene_id}/{b1}{b2}{b3}')
      config.add_route('done', '/done')
      config.add_route('scene_status', '/scene/{scene_id}')
      config.scan()
      return config.make_wsgi_app()
  
subject: Add missing quote