Application-as-extension.

web/core/application.py

@@ -42,6 +42,9 @@ class Application(object):
 	* Collection and execution of `web.extension` callbacks.
 	* WSGI middleware wrapping.
 	* The final WSGI application handling requests.
+	
+	The application object is treated as an extension allowing per-application customization utilizing extension
+	callbacks (such as rendering custom views on startup) through subclassing.
 	"""
 
 	__slots__ = (
@@ -53,6 +56,8 @@ class Application(object):
 			'__call__',  # WSGI request handler.  Dynamically assigned.
 		)
 
+	last = True
+
 	def __init__(self, root, **config):
 		"""Construct the initial ApplicationContext, populate, and prepare the WSGI stack.
 		
@@ -124,6 +129,8 @@ def _configure(self, config):
 					arguments.JSONKwargsExtension(),
 				])
 
+		config['extensions'].append(self)  # Allow the application object itself to register callbacks.
+
 		# Tests are skipped on these as we have no particular need to test Python's own logging mechanism.
 		level = config.get('logging', {}).get('level', None)
 		if level:  # pragma: no cover