Noting further: There's a Note at the bottom of the entry for Queue in 17.2.2.2, https://docs.python.org/3.5/library/multiprocessing.html#pipes-and-queues which says that ImportErrors can be caused by failure of the system to support semaphores, as outlined in Issue3770 (Closed years ago): https://bugs.python.org/issue3770
Does Xubuntu not have basic IPCs such as semaphores? Is it a problem in how Python is built? ** Bug watch added: Python Roundup #3770 http://bugs.python.org/issue3770 -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to python3-defaults in Ubuntu. https://bugs.launchpad.net/bugs/1628763 Title: Example of Queue from documentation fails Status in python3-defaults package in Ubuntu: New Bug description: Reading https://docs.python.org/3.5/library/multiprocessing.html #exchanging-objects-between-processes, I have copy-pasted the code into a file. Running it with python3 fails thus: Traceback (most recent call last): File "q.py", line 7, in <module> q = Queue() File "/usr/lib/python3.5/multiprocessing/context.py", line 100, in Queue from .queues import Queue File "/usr/lib/python3.5/multiprocessing/queues.py", line 20, in <module> from queue import Empty, Full ImportError: cannot import name 'Empty' I will attach the actual code file. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: python3 3.5.1-3 ProcVersionSignature: Ubuntu 4.4.0-34.53-generic 4.4.15 Uname: Linux 4.4.0-34-generic x86_64 NonfreeKernelModules: wl ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: XFCE Date: Wed Sep 28 20:54:17 2016 InstallationDate: Installed on 2016-08-08 (51 days ago) InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) SourcePackage: python3-defaults UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/python3-defaults/+bug/1628763/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
