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| author | Łukasz Langa <lukasz@langa.pl> | 2017-09-29 14:33:34 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-09-29 14:33:34 -0700 |
| commit | 574562c5ddb2f0429aab9af762442e6f9a3f26ab (patch) | |
| tree | f96b2636a2c5046e6b232e42011d8f509d69bdc7 | |
| parent | 01c6a8859ef2ff5545a87cf537573bd342c848bf (diff) | |
| download | cpython-git-574562c5ddb2f0429aab9af762442e6f9a3f26ab.tar.gz | |
bpo-31641: Allow arbitrary iterables in `concurrent.futures.as_completed()` (#3830)
This was possible before. GH-1560 introduced a regression after 3.6.2 got
released where only sequences were accepted now. This commit addresses this
problem.
| -rw-r--r-- | Lib/concurrent/futures/_base.py | 3 | ||||
| -rw-r--r-- | Lib/test/test_concurrent_futures.py | 6 |
2 files changed, 6 insertions, 3 deletions
diff --git a/Lib/concurrent/futures/_base.py b/Lib/concurrent/futures/_base.py index 70c7b61959..6bace6c746 100644 --- a/Lib/concurrent/futures/_base.py +++ b/Lib/concurrent/futures/_base.py @@ -214,9 +214,8 @@ def as_completed(fs, timeout=None): if timeout is not None: end_time = timeout + time.time() - total_futures = len(fs) - fs = set(fs) + total_futures = len(fs) with _AcquireFutures(fs): finished = set( f for f in fs diff --git a/Lib/test/test_concurrent_futures.py b/Lib/test/test_concurrent_futures.py index 57dc994d28..e4c9ace935 100644 --- a/Lib/test/test_concurrent_futures.py +++ b/Lib/test/test_concurrent_futures.py @@ -7,6 +7,7 @@ test.support.import_module('multiprocessing.synchronize') from test.support.script_helper import assert_python_ok +import itertools import os import sys import threading @@ -395,8 +396,11 @@ class AsCompletedTests: def test_duplicate_futures(self): # Issue 20367. Duplicate futures should not raise exceptions or give # duplicate responses. + # Issue #31641: accept arbitrary iterables. future1 = self.executor.submit(time.sleep, 2) - completed = [f for f in futures.as_completed([future1,future1])] + completed = [ + f for f in futures.as_completed(itertools.repeat(future1, 3)) + ] self.assertEqual(len(completed), 1) def test_free_reference_yielded_future(self): |