[Python-Dev] Issue #10348: concurrent.futures doesn't work on BSD

Jesse Noller jnoller at gmail.com
Wed Dec 29 22:34:45 CET 2010

On Dec 29, 2010, at 3:49 PM, "Martin v. Löwis" <martin at v.loewis.de> wrote:

>> If the functionality is not supported then users get an import error
>> (within multiprocessing). However, RDM's understanding is correct, and
>> the test is creating more than supported.
> Hmm. The tests do the absolute minimum stuff that exercises the code;
> doing anything less, and they would be useless. Of course, one may
> wonder why test_first_completed manages to create 41 SemLock objects,
> when all it tries to do is two future calls.
> So if the minimal test case fails, I'd claim that the module doesn't
> work on FreeBSD, period. ISTM that Posix IPC is just not a feasible
> approach to do IPC synchronization on FreeBSD, so it's better to say
> that multiprocessing is not supported on FreeBSD (until SysV IPC is
> getting used, hoping that this will fare better).

Whatever you choose to say Martin. It does work, and is supported to the limitations that FreeBSD imposes.

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