Billiard

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- Fixed Python 2.5 compatibility issue.

- New Pool.terminate_job(pid) to terminate a job without raising WorkerLostError

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- Adds support for FreeBSD 7+

Fix contributed by koobs.

- Pool: New argument ``allow_restart`` is now required to enable
the pool process sentinel that is required to restart the pool.

It's disabled by default, which reduces the number of file
descriptors/semaphores required to run the pool.

- Pool: Now emits a warning if a worker process exited with error-code.

But not if the error code is 155, which is now returned if the worker
process was recycled (maxtasksperchild).

- Python 3 compatibility fixes.

- Python 2.5 compatibility fixes.

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- The ``TimeLimitExceeded`` exception string representation
only included the seconds as a number, it now gives a more human
friendly description.

- Fixed typo in ``LaxBoundedSemaphore.shrink``.

- Pool: ``ResultHandler.handle_event`` no longer requires
any arguments.

- setup.py bdist now works

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- Environment variable ``MP_MAIN_FILE`` envvar is now set to
the path of the ``__main__`` module when execv is enabled.

- Pool: Errors occurring in the TaskHandler are now reported.

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- Can now be installed on Py 3.2

- Issue 12091: simplify ApplyResult and MapResult with threading.Event

Patch by Charles-Francois Natali

- Pool: Support running without TimeoutHandler thread.

- The with_*_thread arguments has also been replaced with
a single `threads=True` argument.

- Two new pool callbacks:

- ``on_timeout_set(job, soft, hard)``

Applied when a task is executed with a timeout.

- ``on_timeout_cancel(job)``

Applied when a timeout is cancelled (the job completed)

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- Fixes Python 2.5 support.