This reverts r63675 based on the discussion in this thread:

 http://mail.python.org/pipermail/python-dev/2008-June/079988.html

Python 2.6 should stick with PyString_* in its codebase.  The PyBytes_* names
in the spirit of 3.0 are available via a #define only.  See the email thread.
diff --git a/Modules/sunaudiodev.c b/Modules/sunaudiodev.c
index f4b430e..285dc66 100644
--- a/Modules/sunaudiodev.c
+++ b/Modules/sunaudiodev.c
@@ -135,11 +135,11 @@
 	
         if (!PyArg_ParseTuple(args, "i:read", &size))
 		return NULL;
-	rv = PyBytes_FromStringAndSize(NULL, size);
+	rv = PyString_FromStringAndSize(NULL, size);
 	if (rv == NULL)
 		return NULL;
 
-	if (!(cp = PyBytes_AsString(rv)))
+	if (!(cp = PyString_AsString(rv)))
 		goto finally;
 
 	count = read(self->x_fd, cp, size);