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gh-124694: Add concurrent.futures.InterpreterPoolExecutor (gh-124548)

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This is an implementation of InterpreterPoolExecutor that builds on ThreadPoolExecutor.

(Note that this is not tied to PEP 734, which is strictly about adding a new stdlib module.)

Possible future improvements:

* support passing a script for the initializer or to submit()
* support passing (most) arbitrary functions without pickling
* support passing closures
* optionally exec functions against __main__ instead of the their original module
This commit is contained in:
Eric Snow 2024-10-16 16:50:46 -06:00 • committed by GitHub
parent a38fef4439
commit a5a7f5e16d
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12 changed files with 828 additions and 40 deletions
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4
Lib/test/test_concurrent_futures/executor.py
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@ -23,6 +23,7 @@ def make_dummy_object(_):
class ExecutorTest:
# Executor.shutdown() and context manager usage is tested by
# ExecutorShutdownTest.
def test_submit(self):
@ -52,7 +53,8 @@ class ExecutorTest:
i = self.executor.map(divmod, [1, 1, 1, 1], [2, 3, 0, 5])
self.assertEqual(i.__next__(), (0, 1))
self.assertEqual(i.__next__(), (0, 1))
self.assertRaises(ZeroDivisionError, i.__next__)
with self.assertRaises(ZeroDivisionError):
i.__next__()
@support.requires_resource('walltime')
def test_map_timeout(self):