From 4b6c41768a15fc85e3069603ef89344bd97f79af Mon Sep 17 00:00:00 2001 From: Xiang Zhang Date: Mon, 27 Feb 2017 11:45:42 +0800 Subject: [PATCH] bpo-29376: Fix assertion error in threading._DummyThread.is_alive() (GH-330) --- Lib/test/test_threading.py | 3 +++ Lib/threading.py | 4 ++++ Misc/NEWS | 2 ++ 3 files changed, 9 insertions(+) diff --git a/Lib/test/test_threading.py b/Lib/test/test_threading.py index 2c2914fd6d..6b6c4d220a 100644 --- a/Lib/test/test_threading.py +++ b/Lib/test/test_threading.py @@ -170,6 +170,9 @@ class ThreadTests(BaseTestCase): mutex.acquire() self.assertIn(tid, threading._active) self.assertIsInstance(threading._active[tid], threading._DummyThread) + #Issue 29376 + self.assertTrue(threading._active[tid].is_alive()) + self.assertRegex(repr(threading._active[tid]), '_DummyThread') del threading._active[tid] # PyThreadState_SetAsyncExc() is a CPython-only gimmick, not (currently) diff --git a/Lib/threading.py b/Lib/threading.py index 4829ff426e..95978d310a 100644 --- a/Lib/threading.py +++ b/Lib/threading.py @@ -1217,6 +1217,10 @@ class _DummyThread(Thread): def _stop(self): pass + def is_alive(self): + assert not self._is_stopped and self._started.is_set() + return True + def join(self, timeout=None): assert False, "cannot join a dummy thread" diff --git a/Misc/NEWS b/Misc/NEWS index 5fad3c82c1..c47657fb28 100644 --- a/Misc/NEWS +++ b/Misc/NEWS @@ -69,6 +69,8 @@ Extension Modules Library ------- +- bpo-29376: Fix assertion error in threading._DummyThread.is_alive(). + - bpo-28624: Add a test that checks that cwd parameter of Popen() accepts PathLike objects. Patch by Sayan Chowdhury. -- 2.40.0