- Issue #10181: New memoryview implementation fixes multiple ownership and lifetime issues of dynamically allocated Py_buffer members (#9990) as well as crashes (#8305, #7433). Many new features have been added (See whatsnew/3.3), and the documentation has been updated extensively. The ndarray test object from _testbuffer.c implements all aspects of PEP-3118, so further development towards the complete implementation of the PEP can proceed in a test-driven manner. Thanks to Nick Coghlan, Antoine Pitrou and Pauli Virtanen for review and many ideas. - Issue #12834: Fix incorrect results of memoryview.tobytes() for non-contiguous arrays. - Issue #5231: Introduce memoryview.cast() method that allows changing format and shape without making a copy of the underlying memory.

--- a/setup.py	Sat Feb 25 10:47:30 2012 +0100
+++ b/setup.py	Sat Feb 25 12:24:21 2012 +0100
@@ -530,6 +530,8 @@
         # Python C API test module
         exts.append( Extension('_testcapi', ['_testcapimodule.c'],
                                depends=['testcapi_long.h']) )
+        # Python PEP-3118 (buffer protocol) test module
+        exts.append( Extension('_testbuffer', ['_testbuffer.c']) )
         # profiler (_lsprof is for cProfile.py)
         exts.append( Extension('_lsprof', ['_lsprof.c', 'rotatingtree.c']) )
         # static Unicode character database