delta/cpython-git.git/Lib/multiprocessing, branch enum-private-310

bpo-38840: Incorrect all in multiprocessing.managers (GH-18034)

2021-08-09T17:39:05+00:00

This was causing test___all__ to fail on platforms lacking a shared
memory implementation.

Co-Authored-By: Xavier de Gaye 
Co-authored-by: Łukasz Langa 
(cherry picked from commit d0978761118856e8ca8ea7b162a6585b8da83df9)

Co-authored-by: Zackery Spytz

bpo-30256: Add manager_owned keyword arg to AutoProxy (GH-16341) (#26987)

2021-07-02T04:15:47+00:00

Co-authored-by: Jordan Speicher 
(cherry picked from commit 85b920498b42c69185540ecc2f5c4907fd38d877)

Co-authored-by: finefoot <33361833+finefoot@users.noreply.github.com>

bpo-43867: multiprocessing Server catchs SystemExit (GH-25441)

2021-04-16T17:42:34+00:00

The multiprocessing Server class now explicitly catchs SystemExit and
closes the client connection in this case. It happens when the
Server.serve_client() method reachs the end of file (EOF).

bpo-43651: Fix test_compileall with PEP 597 (GH-25128)

2021-04-02T00:01:57+00:00

bpo-40692: Run more test_concurrent_futures tests (GH-20239)

2021-02-08T03:15:51+00:00

In the case of multiprocessing.synchronize() being missing, the
test_concurrent_futures test suite now skips only the tests that
require multiprocessing.synchronize().

Validate that multiprocessing.synchronize exists as part of
_check_system_limits(), allowing ProcessPoolExecutor to raise
NotImplementedError during __init__, rather than crashing with
ImportError during __init__ when creating a lock imported from
multiprocessing.synchronize.

Use _check_system_limits() to disable tests of
ProcessPoolExecutor on systems without multiprocessing.synchronize.

Running the test suite without multiprocessing.synchronize reveals
that Lib/compileall.py crashes when it uses a ProcessPoolExecutor.
Therefore, change Lib/compileall.py to call _check_system_limits()
before creating the ProcessPoolExecutor.

Note that both Lib/compileall.py and Lib/test/test_compileall.py
were attempting to sanity-check ProcessPoolExecutor by expecting
ImportError. In multiprocessing.resource_tracker, sem_unlink() is also absent
on platforms where POSIX semaphores aren't available. Avoid using
sem_unlink() if it, too, does not exist.

Co-authored-by: Pablo Galindo

bpo-41344: Raise ValueError when creating shared memory of size 0 (GH-21556)

2020-08-30T19:03:11+00:00

Fix typo in message from assert statement (GH-21283)

2020-08-17T13:38:55+00:00

The error message was missing space between the action "acquire" and "_wait_semaphore" which is an attribute for instances of Condition.

bpo-39244: multiprocessing return default start method first on macOS (GH-18625)

2020-05-26T14:54:21+00:00

bpo-40443: Remove unused imports in stdlib (GH-19815)

2020-05-01T00:38:00+00:00

bpo-30966: Add multiprocessing.SimpleQueue.close() (GH-19735)

2020-04-27T16:11:10+00:00

Add a new close() method to multiprocessing.SimpleQueue to explicitly
close the queue.

Automerge-Triggered-By: @pitrou