building '_multiprocessing' extension
creating build/temp.linux-i686-3.0/home/barry/projects/python/python30/Modules/_multiprocessing
gcc -pthread -fPIC -fno-strict-aliasing -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -DHAVE_SEM_OPEN=1 -DHAVE_FD_TRANSFER=1 -DHAVE_SEM_TIMEDWAIT=1 -IModules/_multiprocessing -I. -I/home/barry/projects/python/python30/./Include -I. -IInclude -I./Include -I/usr/local/include -I/home/barry/projects/python/python30/Include -I/home/barry/projects/python/python30 -c /home/barry/projects/python/python30/Modules/_multiprocessing/multiprocessing.c -o build/temp.linux-i686-3.0/home/barry/projects/python/python30/Modules/_multiprocessing/multiprocessing.o
gcc -pthread -fPIC -fno-strict-aliasing -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -DHAVE_SEM_OPEN=1 -DHAVE_FD_TRANSFER=1 -DHAVE_SEM_TIMEDWAIT=1 -IModules/_multiprocessing -I. -I/home/barry/projects/python/python30/./Include -I. -IInclude -I./Include -I/usr/local/include -I/home/barry/projects/python/python30/Include -I/home/barry/projects/python/python30 -c /home/barry/projects/python/python30/Modules/_multiprocessing/socket_connection.c -o build/temp.linux-i686-3.0/home/barry/projects/python/python30/Modules/_multiprocessing/socket_connection.o
gcc -pthread -fPIC -fno-strict-aliasing -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -DHAVE_SEM_OPEN=1 -DHAVE_FD_TRANSFER=1 -DHAVE_SEM_TIMEDWAIT=1 -IModules/_multiprocessing -I. -I/home/barry/projects/python/python30/./Include -I. -IInclude -I./Include -I/usr/local/include -I/home/barry/projects/python/python30/Include -I/home/barry/projects/python/python30 -c /home/barry/projects/python/python30/Modules/_multiprocessing/semaphore.c -o build/temp.linux-i686-3.0/home/barry/projects/python/python30/Modules/_multiprocessing/semaphore.o
gcc -pthread -shared build/temp.linux-i686-3.0/home/barry/projects/python/python30/Modules/_multiprocessing/multiprocessing.o build/temp.linux-i686-3.0/home/barry/projects/python/python30/Modules/_multiprocessing/socket_connection.o build/temp.linux-i686-3.0/home/barry/projects/python/python30/Modules/_multiprocessing/semaphore.o -L/usr/local/lib -o build/lib.linux-i686-3.0/_multiprocessing.so
Traceback (most recent call last):
  File "./setup.py", line 1668, in <module>
    main()
  File "./setup.py", line 1663, in main
    'Lib/smtpd.py']
  File "/home/barry/projects/python/python30/Lib/distutils/core.py", line 149, in setup
    dist.run_commands()
  File "/home/barry/projects/python/python30/Lib/distutils/dist.py", line 941, in run_commands
    self.run_command(cmd)
  File "/home/barry/projects/python/python30/Lib/distutils/dist.py", line 961, in run_command
    cmd_obj.run()
  File "/home/barry/projects/python/python30/Lib/distutils/command/build.py", line 128, in run
    self.run_command(cmd_name)
  File "/home/barry/projects/python/python30/Lib/distutils/cmd.py", line 317, in run_command
    self.distribution.run_command(command)
  File "/home/barry/projects/python/python30/Lib/distutils/dist.py", line 961, in run_command
    cmd_obj.run()
  File "/home/barry/projects/python/python30/Lib/distutils/command/build_ext.py", line 332, in run
    self.build_extensions()
  File "./setup.py", line 194, in build_extensions
    build_ext.build_extensions(self)
  File "/home/barry/projects/python/python30/Lib/distutils/command/build_ext.py", line 443, in build_extensions
    self.build_extension(ext)
  File "./setup.py", line 267, in build_extension
    imp.load_dynamic(ext.name, ext_filename)
  File "/home/barry/projects/python/python30/Lib/multiprocessing/__init__.py", line 81, in <module>
    import _multiprocessing
ImportError: No module named _multiprocessing
make: *** [sharedmods] Error 1

% ls build/lib.linux-i686-3.0/*.so
build/lib.linux-i686-3.0/array.so*
build/lib.linux-i686-3.0/atexit.so*
build/lib.linux-i686-3.0/audioop.so*
build/lib.linux-i686-3.0/binascii.so*
build/lib.linux-i686-3.0/_bisect.so*
build/lib.linux-i686-3.0/_bsddb.so*
build/lib.linux-i686-3.0/_bytesio.so*
build/lib.linux-i686-3.0/bz2.so*
build/lib.linux-i686-3.0/cmath.so*
build/lib.linux-i686-3.0/_codecs_cn.so*
build/lib.linux-i686-3.0/_codecs_hk.so*
build/lib.linux-i686-3.0/_codecs_iso2022.so*
build/lib.linux-i686-3.0/_codecs_jp.so*
build/lib.linux-i686-3.0/_codecs_kr.so*
build/lib.linux-i686-3.0/_codecs_tw.so*
build/lib.linux-i686-3.0/_collections.so*
build/lib.linux-i686-3.0/crypt.so*
build/lib.linux-i686-3.0/_csv.so*
build/lib.linux-i686-3.0/_ctypes_test.so*
build/lib.linux-i686-3.0/_curses_panel.so*
build/lib.linux-i686-3.0/_curses.so*
build/lib.linux-i686-3.0/datetime.so*
build/lib.linux-i686-3.0/_dbm.so*
build/lib.linux-i686-3.0/_elementtree.so*
build/lib.linux-i686-3.0/fcntl.so*
build/lib.linux-i686-3.0/_functools.so*
build/lib.linux-i686-3.0/_gdbm.so*
build/lib.linux-i686-3.0/grp.so*
build/lib.linux-i686-3.0/_hashlib.so*
build/lib.linux-i686-3.0/_heapq.so*
build/lib.linux-i686-3.0/itertools.so*
build/lib.linux-i686-3.0/_json.so*
build/lib.linux-i686-3.0/_locale.so*
build/lib.linux-i686-3.0/_lsprof.so*
build/lib.linux-i686-3.0/math.so*
build/lib.linux-i686-3.0/mmap.so*
build/lib.linux-i686-3.0/_multibytecodec.so*
build/lib.linux-i686-3.0/_multiprocessing.so*
build/lib.linux-i686-3.0/nis.so*
build/lib.linux-i686-3.0/operator.so*
build/lib.linux-i686-3.0/parser.so*
build/lib.linux-i686-3.0/_pickle.so*
build/lib.linux-i686-3.0/pyexpat.so*
build/lib.linux-i686-3.0/_random.so*
build/lib.linux-i686-3.0/readline.so*
build/lib.linux-i686-3.0/resource.so*
build/lib.linux-i686-3.0/select.so*
build/lib.linux-i686-3.0/_socket.so*
build/lib.linux-i686-3.0/spwd.so*
build/lib.linux-i686-3.0/_sqlite3.so*
build/lib.linux-i686-3.0/_ssl.so*
build/lib.linux-i686-3.0/_stringio.so*
build/lib.linux-i686-3.0/_struct.so*
build/lib.linux-i686-3.0/syslog.so*
build/lib.linux-i686-3.0/termios.so*
build/lib.linux-i686-3.0/_testcapi.so*
build/lib.linux-i686-3.0/time.so*
build/lib.linux-i686-3.0/unicodedata.so*
build/lib.linux-i686-3.0/zlib.so*

% ./python
Python 3.0b1+ (py3k:65034M, Jul 16 2008, 16:54:50) 
[GCC 4.2.3 (Ubuntu 4.2.3-2ubuntu7)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import _multiprocessing
>>> _multiprocessing.__file__
'/home/barry/projects/python/python30/build/lib.linux-i686-3.0/_multiprocessing.so'
>>>