$ python2.6 -c 'from multiprocessing.queues import SimpleQueue'
$ python2.7 -c 'from multiprocessing.queues import SimpleQueue'
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python2.7/multiprocessing/queues.py", line 22, in <module>
from multiprocessing.synchronize import Lock, BoundedSemaphore, Semaphore, Condition
File "/usr/lib/python2.7/multiprocessing/synchronize.py", line 33, in <module>
" function, see issue 3770.")
ImportError: This platform lacks a functioning sem_open implementation, therefore, the required synchronization primitives needed will not function, see issue 3770.
$ uname -a
Linux xxx-ubuntu-64 2.6.35-22-generic #35-Ubuntu SMP Sat Oct 16 20:45:36 UTC 2010 x86_64 GNU/Linux