Index: Lib/test/test_urllib2net.py
===================================================================
--- Lib/test/test_urllib2net.py	(revision 69418)
+++ Lib/test/test_urllib2net.py	(working copy)
@@ -91,6 +91,21 @@
         response.close()
         self.assert_(fileobject.closed)
 
+
+class Test_AddInfoURL(unittest.TestCase):
+
+    def test_fileno(self):
+        request = urllib2.Request("http://pheared.net")
+        opener = urllib2.build_opener()
+        r = opener.open(request)
+        try:
+            r.fileno()
+        except AttributeError:
+            self.fail('addinfourl.fileno() should work with HTTPResponse')
+        finally:
+            r.close()
+
+
 class OtherNetworkTests(unittest.TestCase):
     def setUp(self):
         if 0:  # for debugging
Index: Lib/urllib.py
===================================================================
--- Lib/urllib.py	(revision 69418)
+++ Lib/urllib.py	(working copy)
@@ -980,7 +980,15 @@
     def geturl(self):
         return self.url
 
+    @property
+    def fileno(self):
+        return self.fp.fileno
 
+    @fileno.setter
+    def fileno(self, value):
+        self.fp.fileno = value
+
+
 # Utilities to parse URLs (most of these return None for missing parts):
 # unwrap('<URL:type://host/path>') --> 'type://host/path'
 # splittype('type:opaquestring') --> 'type', 'opaquestring'