range() should have been registered as a Sequence.

Needs to be backported to 2.6, 2.7, and 3.0.

Lib/_abcoll.py

@@ -546,6 +546,7 @@ class Sequence(Sized, Iterable, Container):
 
 Sequence.register(tuple)
 Sequence.register(str)
+Sequence.register(range)
 
 
 class ByteString(Sequence):

Lib/test/test_collections.py

@@ -406,6 +406,8 @@ class TestCollectionABCs(ABCTestCase):
         for sample in [tuple, list, bytes, str]:
             self.failUnless(isinstance(sample(), Sequence))
             self.failUnless(issubclass(sample, Sequence))
+        self.failUnless(isinstance(range(10), Sequence))
+        self.failUnless(issubclass(range, Sequence))
         self.failUnless(issubclass(str, Sequence))
         self.validate_abstract_methods(Sequence, '__contains__', '__iter__', '__len__',
             '__getitem__')