Breaking ground for PEP 3137 implementation:

Get rid of buffer().  Use memoryview() in its place where possible.
In a few places, do things a bit different, because memoryview()
can't slice (yet).

Lib/test/test_array.py

@@ -708,7 +708,7 @@ class BaseTest(unittest.TestCase):
 
     def test_buffer(self):
         a = array.array(self.typecode, self.example)
-        b = bytes(buffer(a))
+        b = bytes(memoryview(a))
         self.assertEqual(b[0], a.tostring()[0])
 
     def test_weakref(self):