[Bug 672209] Re: [SRU] multiprocessing module dysfunctional
Barry Warsaw
672209 at bugs.launchpad.net
Thu Apr 28 19:53:00 UTC 2011
** Changed in: python2.7 (Ubuntu Maverick)
Status: In Progress => Confirmed
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https://bugs.launchpad.net/bugs/672209
Title:
[SRU] multiprocessing module dysfunctional
Status in “python2.7” package in Ubuntu:
Fix Released
Status in “python2.7” source package in Maverick:
Confirmed
Bug description:
Binary package hint: python2.7
On Maverick with python2.7 (2.7-6 deb version), the multiprocessing
module fails to operate:
python2.7 -c 'import multiprocessing; multiprocessing.Pool()'
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/usr/lib/python2.7/multiprocessing/__init__.py", line 227, in Pool
return Pool(processes, initializer, initargs, maxtasksperchild)
File "/usr/lib/python2.7/multiprocessing/pool.py", line 89, in __init__
self._setup_queues()
File "/usr/lib/python2.7/multiprocessing/pool.py", line 181, in _setup_queues
from .queues import SimpleQueue
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.
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