config.py

def main(global_config, **settings):
    """
    This function returns a Pyramid WSGI application.
    """

    config = Configurator(settings=settings, root_factory=get_root)

    config.include('pyramid_chameleon')

    config.include('amnesia.renderers')
    config.include('amnesia.db')

    config.include('amnesia.modules.folder.mapper')
    config.include('amnesia.modules.file.mapper')
    config.include('amnesia.modules.event.mapper')
    config.include('amnesia.modules.document.mapper')

    config.include('amnesia.modules.content.views')
    config.include('amnesia.modules.document.views')
    config.include('amnesia.modules.folder.views')

    config.add_static_view(name='static', path='amnesia:/static')

    config.add_view('amnesia.views.index', '')

    config.add_resource_url_adapter(EntityResourceURLAdapter)

    config.scan()
    #config.add_renderer('.html', 'pyramid_chameleon.zpt.renderer_factory')
    config.add_renderer('.xml', 'pyramid_chameleon.zpt.renderer_factory')

    return config.make_wsgi_app()

@implementer(IResourceURL)
class EntityResourceURLAdapter(ResourceURL):
    def __init__(self, resource, request):
        if isinstance(resource, Folder):
            resource = FolderResource(resource, request)
        elif isinstance(resource, Document):
            resource = DocumentResource(resource, request)
        elif isinstance(resource, Event):
            resource = EventResource(resource, request)
        super().__init__(resource, request)