Better handling of string-type responses from controllers

--HG--
branch : py3k

src/milla/app.py

@@ -25,7 +25,6 @@ from milla.controllers import FaviconController
 from milla.util import asbool
 from webob.exc import HTTPNotFound, WSGIHTTPException, HTTPMethodNotAllowed
 import milla.dispatch
-import webob
 
 __all__ = ['Application']
 
@@ -126,9 +125,16 @@ class Application(object):
                     func.func.im_self.__after__(request)
 
         # The callable might have returned just a string, which is OK,
-        # but we need to wrap it in a WebOb response
+        # but we need to wrap it in a Response object
+        try:
+            # In Python 2, it could be a str or a unicode object
+            basestring = basestring #@UndefinedVariable
+        except NameError:
+            # Python 3 has no unicode objects and thus no need for
+            # basestring so we, just make it an alias for str 
+            basestring = str
         if isinstance(response, basestring) or not response:
-            response = webob.Response(response)
+            response = request.ResponseClass(response)
 
         if not start_response_wrapper.called:
             start_response(response.status, response.headerlist)