diff --git a/django/utils/decorators.py b/django/utils/decorators.py
index 683d4c6a7f..8fc4c1d96a 100644
--- a/django/utils/decorators.py
+++ b/django/utils/decorators.py
@@ -2,16 +2,9 @@
 
 import types
 try:
-    from functools import wraps, WRAPPER_ASSIGNMENTS
+    from functools import wraps
 except ImportError:
-    from django.utils.functional import wraps, WRAPPER_ASSIGNMENTS  # Python 2.3, 2.4 fallback.
-
-def available_attrs(fn):
-    """
-    Return the list of functools-wrappable attributes on a callable.
-    This is required as a workaround for http://bugs.python.org/issue3445.
-    """
-    return tuple(a for a in WRAPPER_ASSIGNMENTS if hasattr(fn, a))
+    from django.utils.functional import wraps  # Python 2.3, 2.4 fallback.
 
 def decorator_from_middleware(middleware_class):
     """
@@ -64,5 +57,5 @@ def decorator_from_middleware(middleware_class):
                 if result is not None:
                     return result
             return response
-        return wraps(view_func, assigned=available_attrs(view_func))(_wrapped_view)
+        return wraps(view_func)(_wrapped_view)
     return _decorator_from_middleware
diff --git a/django/views/decorators/cache.py b/django/views/decorators/cache.py
index 9abb8d44f1..8b620c1345 100644
--- a/django/views/decorators/cache.py
+++ b/django/views/decorators/cache.py
@@ -16,7 +16,7 @@ try:
 except ImportError:
     from django.utils.functional import wraps  # Python 2.3, 2.4 fallback.
 
-from django.utils.decorators import decorator_from_middleware, available_attrs
+from django.utils.decorators import decorator_from_middleware
 from django.utils.cache import patch_cache_control, add_never_cache_headers
 from django.middleware.cache import CacheMiddleware
 
@@ -31,7 +31,7 @@ def cache_control(**kwargs):
             patch_cache_control(response, **kwargs)
             return response
 
-        return wraps(viewfunc, assigned=available_attrs(viewfunc))(_cache_controlled)
+        return wraps(viewfunc)(_cache_controlled)
 
     return _cache_controller
 
@@ -44,4 +44,4 @@ def never_cache(view_func):
         response = view_func(request, *args, **kwargs)
         add_never_cache_headers(response)
         return response
-    return wraps(view_func, assigned=available_attrs(view_func))(_wrapped_view_func)
+    return wraps(view_func)(_wrapped_view_func)
diff --git a/django/views/decorators/http.py b/django/views/decorators/http.py
index 9a5a314f0c..b51cf9a782 100644
--- a/django/views/decorators/http.py
+++ b/django/views/decorators/http.py
@@ -11,7 +11,7 @@ from calendar import timegm
 from datetime import timedelta
 from email.Utils import formatdate
 
-from django.utils.decorators import decorator_from_middleware, available_attrs
+from django.utils.decorators import decorator_from_middleware
 from django.utils.http import parse_etags, quote_etag
 from django.middleware.http import ConditionalGetMiddleware
 from django.http import HttpResponseNotAllowed, HttpResponseNotModified, HttpResponse
@@ -35,7 +35,7 @@ def require_http_methods(request_method_list):
             if request.method not in request_method_list:
                 return HttpResponseNotAllowed(request_method_list)
             return func(request, *args, **kwargs)
-        return wraps(func, assigned=available_attrs(func))(inner)
+        return wraps(func)(inner)
     return decorator
 
 require_GET = require_http_methods(["GET"])
diff --git a/django/views/decorators/vary.py b/django/views/decorators/vary.py
index e2b87a8c71..ea1b8d307d 100644
--- a/django/views/decorators/vary.py
+++ b/django/views/decorators/vary.py
@@ -4,7 +4,6 @@ except ImportError:
     from django.utils.functional import wraps  # Python 2.3, 2.4 fallback.
 
 from django.utils.cache import patch_vary_headers
-from django.utils.decorators import available_attrs
 
 def vary_on_headers(*headers):
     """
@@ -22,7 +21,7 @@ def vary_on_headers(*headers):
             response = func(*args, **kwargs)
             patch_vary_headers(response, headers)
             return response
-        return wraps(func, assigned=available_attrs(func))(inner_func)
+        return wraps(func)(inner_func)
     return decorator
 
 def vary_on_cookie(func):
@@ -38,4 +37,4 @@ def vary_on_cookie(func):
         response = func(*args, **kwargs)
         patch_vary_headers(response, ('Cookie',))
         return response
-    return wraps(func, assigned=available_attrs(func))(inner_func)
+    return wraps(func)(inner_func)
diff --git a/tests/regressiontests/utils/decorators.py b/tests/regressiontests/utils/decorators.py
index ca9214f787..c6ae243c98 100644
--- a/tests/regressiontests/utils/decorators.py
+++ b/tests/regressiontests/utils/decorators.py
@@ -11,9 +11,3 @@ class DecoratorFromMiddlewareTests(TestCase):
         Test a middleware that implements process_view.
         """
         self.client.get('/utils/xview/')
-
-    def test_callable_process_view_middleware(self):
-        """
-        Test a middleware that implements process_view, operating on a callable class.
-        """
-        self.client.get('/utils/class_xview/')
diff --git a/tests/regressiontests/utils/urls.py b/tests/regressiontests/utils/urls.py
index ba09d14b3d..7b60d0884c 100644
--- a/tests/regressiontests/utils/urls.py
+++ b/tests/regressiontests/utils/urls.py
@@ -4,5 +4,4 @@ import views
 
 urlpatterns = patterns('',
     (r'^xview/$', views.xview),
-    (r'^class_xview/$', views.class_xview),
 )
diff --git a/tests/regressiontests/utils/views.py b/tests/regressiontests/utils/views.py
index ef97c6502d..d22ae26641 100644
--- a/tests/regressiontests/utils/views.py
+++ b/tests/regressiontests/utils/views.py
@@ -8,10 +8,3 @@ xview_dec = decorator_from_middleware(XViewMiddleware)
 def xview(request):
     return HttpResponse()
 xview = xview_dec(xview)
-
-
-class ClassXView(object):
-    def __call__(self, request):
-        return HttpResponse()
-
-class_xview = xview_dec(ClassXView())