fixes deferred/release blocker issue #3797: Fixed the dbm, marshal, mmap,
ossaudiodev, & winreg modules to return bytes objects instead of bytearray
objects.
diff --git a/Modules/_dbmmodule.c b/Modules/_dbmmodule.c
index 78eba36..d43acdc 100644
--- a/Modules/_dbmmodule.c
+++ b/Modules/_dbmmodule.c
@@ -111,7 +111,7 @@
 		PyErr_SetString(DbmError, "");
 		return NULL;
 	}
-	return PyByteArray_FromStringAndSize(drec.dptr, drec.dsize);
+	return PyBytes_FromStringAndSize(drec.dptr, drec.dsize);
 }
 
 static int
@@ -188,7 +188,7 @@
 		return NULL;
 	for (key = dbm_firstkey(dp->di_dbm); key.dptr;
 	     key = dbm_nextkey(dp->di_dbm)) {
-		item = PyByteArray_FromStringAndSize(key.dptr, key.dsize);
+		item = PyBytes_FromStringAndSize(key.dptr, key.dsize);
 		if (item == NULL) {
 			Py_DECREF(v);
 			return NULL;
@@ -260,7 +260,7 @@
         check_dbmobject_open(dp);
 	val = dbm_fetch(dp->di_dbm, key);
 	if (val.dptr != NULL)
-		return PyByteArray_FromStringAndSize(val.dptr, val.dsize);
+		return PyBytes_FromStringAndSize(val.dptr, val.dsize);
 	else {
 		Py_INCREF(defvalue);
 		return defvalue;
@@ -283,9 +283,9 @@
         check_dbmobject_open(dp);
 	val = dbm_fetch(dp->di_dbm, key);
 	if (val.dptr != NULL)
-		return PyByteArray_FromStringAndSize(val.dptr, val.dsize);
+		return PyBytes_FromStringAndSize(val.dptr, val.dsize);
 	if (defvalue == NULL) {
-		defvalue = PyByteArray_FromStringAndSize(NULL, 0);
+		defvalue = PyBytes_FromStringAndSize(NULL, 0);
 		if (defvalue == NULL)
 			return NULL;
 		val.dptr = NULL;
diff --git a/Modules/mmapmodule.c b/Modules/mmapmodule.c
index 9adef9b..6a2ebfd 100644
--- a/Modules/mmapmodule.c
+++ b/Modules/mmapmodule.c
@@ -228,7 +228,7 @@
 	else
 		++eol;		/* we're interested in the position after the
 				   newline. */
-	result = PyByteArray_FromStringAndSize(start, (eol - start));
+	result = PyBytes_FromStringAndSize(start, (eol - start));
 	self->pos += (eol - start);
 	return result;
 }
@@ -248,7 +248,7 @@
 	if (num_bytes > self->size - self->pos) {
 		num_bytes -= (self->pos+num_bytes) - self->size;
 	}
-	result = PyByteArray_FromStringAndSize(self->data+self->pos, num_bytes);
+	result = PyBytes_FromStringAndSize(self->data+self->pos, num_bytes);
 	self->pos += num_bytes;
 	return result;
 }
@@ -679,7 +679,7 @@
 		PyErr_SetString(PyExc_IndexError, "mmap index out of range");
 		return NULL;
 	}
-	return PyByteArray_FromStringAndSize(self->data + i, 1);
+	return PyBytes_FromStringAndSize(self->data + i, 1);
 }
 
 static PyObject *
@@ -769,14 +769,14 @@
 				"mmap object doesn't support item deletion");
 		return -1;
 	}
-	if (! (PyByteArray_Check(v) && PyByteArray_Size(v)==1) ) {
+	if (! (PyBytes_Check(v) && PyBytes_Size(v)==1) ) {
 		PyErr_SetString(PyExc_IndexError,
 				"mmap assignment must be length-1 bytes()");
 		return -1;
 	}
 	if (!is_writable(self))
 		return -1;
-	buf = PyByteArray_AsString(v);
+	buf = PyBytes_AsString(v);
 	self->data[i] = buf[0];
 	return 0;
 }
diff --git a/Modules/ossaudiodev.c b/Modules/ossaudiodev.c
index 5828c3f..677f9ac 100644
--- a/Modules/ossaudiodev.c
+++ b/Modules/ossaudiodev.c
@@ -366,10 +366,10 @@
 
     if (!PyArg_ParseTuple(args, "i:read", &size))
         return NULL;
-    rv = PyByteArray_FromStringAndSize(NULL, size);
+    rv = PyBytes_FromStringAndSize(NULL, size);
     if (rv == NULL)
         return NULL;
-    cp = PyByteArray_AS_STRING(rv);
+    cp = PyBytes_AS_STRING(rv);
 
     Py_BEGIN_ALLOW_THREADS
     count = read(self->fd, cp, size);
@@ -381,7 +381,7 @@
         return NULL;
     }
     self->icount += count;
-    PyByteArray_Resize(rv, count);
+    _PyBytes_Resize(&rv, count);
     return rv;
 }