Actually, it is not possible to use the 'with' statement in the
ossaudiodev module:

>>> import ossaudiodev
>>> with ossaudiodev.open('/dev/dsp', 'r') as device:
...     pass
...
Traceback (most recent call last):
  File "<stdin>", line 1 in <module>
AttributeError: 'ossaudodev.oss_audio_device' object has no attribute
'__exit__'

In order to provide a similar interface as standard Python files, and
encourage safe coding practices, the 'with' statement should be
supported in the ossaudiodev module.

Thanks.

Seems like a sensible idea.
Note: 3.0 is no longer maintained.
Marking 'easy' because I expect that copying and adapting __exit__ from
regular open should be.

Diff attached

* Added the __enter__ and __exit__ methods to the ossaudio object.
* Updated tests so they pass (attempt to access ossaudio.closed throws
AttributeError instead of TypeError)

My first patch.  Please let me know if I did anything terrifically
stupid. :-)

@agillesp: a Python function should never return NULL without setting an
error. oss_self() have to call a PyErr_(...) function to set an error.
And I would prefer the name "oss_enter" than the unusual name "oss_self".

Hi Victor,

I copied both the return NULL behavior in oss_exit and the oss_self
naming from Objects/fileobject.c:

http://paste.pocoo.org/show/136451/

Should they be changed there as well?

+1, the C patch looks good to me.  The test file needs a new test that checks the 'with' behavior.  Also, what changed so that the test now needs to ignore AttributeErrors in play_sound_file()?

Applied (with new test, and docs) in r85807.  I also removed the AttributeError catch.