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/ctypes/test/test_array_in_pointer.py

@@ -6,7 +6,7 @@ import re
 def dump(obj):
     # helper function to dump memory contents in hex, with a hyphen
     # between the bytes.
-    h = str(hexlify(buffer(obj)))
+    h = str(hexlify(memoryview(obj)))
     return re.sub(r"(..)", r"\1-", h)[:-1]
 
 

Lib/ctypes/test/test_byteswap.py

@@ -4,7 +4,7 @@ from binascii import hexlify
 from ctypes import *
 
 def bin(s):
-    return str(hexlify(buffer(s))).upper()
+    return str(hexlify(memoryview(s))).upper()
 
 # Each *simple* type that supports different byte orders has an
 # __ctype_be__ attribute that specifies the same type in BIG ENDIAN

Lib/ctypes/test/test_strings.py

@@ -30,17 +30,17 @@ class StringArrayTestCase(unittest.TestCase):
         buf.value = "Hello, World"
         self.failUnlessEqual(buf.value, "Hello, World")
 
-        self.failUnlessRaises(TypeError, setattr, buf, "value", buffer("Hello, World"))
-        self.assertRaises(TypeError, setattr, buf, "value", buffer("abc"))
-        self.assertRaises(ValueError, setattr, buf, "raw", buffer("x" * 100))
+        self.failUnlessRaises(TypeError, setattr, buf, "value", memoryview(b"Hello, World"))
+        self.assertRaises(TypeError, setattr, buf, "value", memoryview(b"abc"))
+        self.assertRaises(ValueError, setattr, buf, "raw", memoryview(b"x" * 100))
 
     def test_c_buffer_raw(self):
         buf = c_buffer(32)
 
-        buf.raw = buffer(b"Hello, World")
+        buf.raw = memoryview(b"Hello, World")
         self.failUnlessEqual(buf.value, "Hello, World")
-        self.assertRaises(TypeError, setattr, buf, "value", buffer("abc"))
-        self.assertRaises(ValueError, setattr, buf, "raw", buffer("x" * 100))
+        self.assertRaises(TypeError, setattr, buf, "value", memoryview(b"abc"))
+        self.assertRaises(ValueError, setattr, buf, "raw", memoryview(b"x" * 100))
 
     def test_param_1(self):
         BUF = c_char * 4