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GeezerVison is showing github.com — [3.15] gh-153908: Fix data race in `itertools.count.__repr__` (GH-153917) by miss-islington · Pull Request #153951 · python/cpython

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@miss-islington

@miss-islington miss-islington commented Jul 18, 2026 •
edited by bedevere-app Bot
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(cherry picked from commit 5200f11)

Co-authored-by: John [email protected]

  • Issue: tsan-006: itertoolsmodule.c: count.__repr__ plain-reads cnt #153908

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@johng @miss-islington
pythongh-153908: Fix data race in itertools.count.__repr__ (pythonG…
a06b6ed 
…H-153917)

(cherry picked from commit 5200f11)

Co-authored-by: John <[email protected]>
@miss-islington
miss-islington requested a review from rhettinger as a code owner July 18, 2026 13:02
This was referenced Jul 18, 2026
tsan-006: itertoolsmodule.c: count.__repr__ plain-reads cnt #153908
Closed
gh-153908: Fix datarace in itertools.count().repr() #153917
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@bedevere-app bedevere-app Bot added the awaiting review label Jul 18, 2026
@ZeroIntensity
ZeroIntensity enabled auto-merge (squash) July 18, 2026 13:04
@IvyXu420

IvyXu420 commented Jul 18, 2026

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CI failed with test_traceback_when_child_process_terminates_abruptly on macOS (see #143620):

======================================================================
FAIL: test_traceback_when_child_process_terminates_abruptly (test.test_concurrent_futures.test_process_pool.ProcessPoolForkserverProcessPoolExecutorTest.test_traceback_when_child_process_terminates_abruptly)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/Users/runner/work/cpython/cpython/Lib/test/test_concurrent_futures/test_process_pool.py", line 154, in test_traceback_when_child_process_terminates_abruptly
    self.assertIsInstance(cause, futures.process._RemoteTraceback)
    ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
AssertionError: None is not an instance of <class 'concurrent.futures.process._RemoteTraceback'>

cc @ZeroIntensity
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@ZeroIntensity
ZeroIntensity merged commit 536d18b into python:3.15 Jul 18, 2026
98 of 100 checks passed

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@bedevere-app bedevere-app Bot removed the awaiting review label Jul 18, 2026
@miss-islington
miss-islington deleted the backport-5200f11-3.15 branch July 18, 2026 15:18
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@rhettinger rhettinger Awaiting requested review from rhettinger rhettinger is a code owner

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4 participants

@miss-islington @IvyXu420 @ZeroIntensity @johng
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