Index: Modules/_ctypes/_ctypes.c
===================================================================
--- Modules/_ctypes/_ctypes.c	(revision 77489)
+++ Modules/_ctypes/_ctypes.c	(working copy)
@@ -1076,6 +1076,7 @@
 {
 	char *ptr;
 	Py_ssize_t size;
+#if (PY_VERSION_HEX < 0x02070000)
 	if (PyBuffer_Check(value)) {
 		size = Py_TYPE(value)->tp_as_buffer->bf_getreadbuffer(value, 0, (void *)&ptr);
 		if (size < 0)
@@ -1083,15 +1084,30 @@
 	} else if (-1 == PyString_AsStringAndSize(value, &ptr, &size)) {
 		return -1;
 	}
+#else
+	Py_buffer view;
+	if (PyObject_GetBuffer(value, &view, PyBUF_SIMPLE) < 0)
+		return -1;
+	size = view.len;
+	ptr = view.buf;
+#endif
 	if (size > self->b_size) {
 		PyErr_SetString(PyExc_ValueError,
 				"string too long");
-		return -1;
+		goto fail;
 	}
 
 	memcpy(self->b_ptr, ptr, size);
 
+#if (PY_VERSION_HEX >= 0x02070000)
+	PyBuffer_Release(&view);
+#endif
 	return 0;
+    fail:
+#if (PY_VERSION_HEX >= 0x02070000)
+	PyBuffer_Release(&view);
+#endif
+	return -1;
 }
 
 static PyObject *