Issue #8139: ossaudiodev didn't initialize its types properly, therefore

some methods (such as oss_mixer_device.fileno()) were not available.
Initial patch by Bertrand Janin.

Lib/test/test_ossaudiodev.py

@@ -159,6 +159,15 @@ class OSSAudioDevTests(unittest.TestCase):
             dsp.close()
             self.assertTrue(dsp.closed)
 
+    def test_mixer_methods(self):
+        # Issue #8139: ossaudiodev didn't initialize its types properly,
+        # therefore some methods were unavailable.
+        mixer = ossaudiodev.openmixer()
+        try:
+            self.assertGreaterEqual(mixer.fileno(), 0)
+        finally:
+            mixer.close()
+
 
 def test_main():
     try:

Misc/ACKS

@@ -372,6 +372,7 @@ Ben Jackson
 David Jacobs
 Kevin Jacobs
 Kjetil Jacobsen
+Bertrand Janin
 Geert Jansen
 Jack Jansen
 Bill Janssen

Misc/NEWS

@@ -287,6 +287,10 @@ C-API
 Library
 -------
 
+- Issue #8139: ossaudiodev didn't initialize its types properly, therefore
+  some methods (such as oss_mixer_device.fileno()) were not available.
+  Initial patch by Bertrand Janin.
+
 - Issue #7512: shutil.copystat() could raise an OSError when the filesystem
   didn't support chflags() (for example ZFS under FreeBSD).  The error is
   now silenced.

Modules/ossaudiodev.c

@@ -986,11 +986,17 @@ static struct PyModuleDef ossaudiodevmodule = {
 	NULL
 };
 
-PyObject*
+PyMODINIT_FUNC
 PyInit_ossaudiodev(void)
 {
     PyObject *m;
 
+    if (PyType_Ready(&OSSAudioType) < 0)
+        return NULL;
+
+    if (PyType_Ready(&OSSMixerType) < 0)
+        return NULL;
+
     m = PyModule_Create(&ossaudiodevmodule);
     if (m == NULL)
 	return NULL;