[issue46708] test_asyncio: test_sock_client_fail() changes asyncio.events._event_loop_policy

[Guido van Rossum]

Guido van Rossum  added the comment:

Heh, I just ran into this for test_taskgroups as well. (Alas, I had debugged 
and fixed it independently before I found this. :-)

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nosy: +gvanrossum

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[issue46708] test_asyncio: test_sock_client_fail() changes asyncio.events._event_loop_policy

[Andrew Svetlov]

Change by Andrew Svetlov :


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resolution:  -> fixed
stage: patch review -> resolved
status: open -> closed

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[issue46708] test_asyncio: test_sock_client_fail() changes asyncio.events._event_loop_policy

[STINNER Victor]

STINNER Victor  added the comment:

With PR 31253 fix, I confirm that it fix my bug explained in msg412992.

commit 012e77eb5c3ba3d411f5967a7f368ebdb42ab88c
Author: Andrew Svetlov 
Date:   Thu Feb 10 14:57:20 2022 +0200

Fix warning: asyncio.events._event_loop_policy was modified by test_asyncio 
(GH-31253)

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[issue46708] test_asyncio: test_sock_client_fail() changes asyncio.events._event_loop_policy

[Andrew Svetlov]

Change by Andrew Svetlov :


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versions: +Python 3.10, Python 3.9

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[issue46708] test_asyncio: test_sock_client_fail() changes asyncio.events._event_loop_policy

[Andrew Svetlov]

Change by Andrew Svetlov :


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pull_requests: +29424
pull_request: https://github.com/python/cpython/pull/31256

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[issue46708] test_asyncio: test_sock_client_fail() changes asyncio.events._event_loop_policy

[Andrew Svetlov]

Change by Andrew Svetlov :


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pull_requests: +29423
pull_request: https://github.com/python/cpython/pull/31255

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[issue46708] test_asyncio: test_sock_client_fail() changes asyncio.events._event_loop_policy

[Andrew Svetlov]

Change by Andrew Svetlov :


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keywords: +patch
pull_requests: +29421
stage:  -> patch review
pull_request: https://github.com/python/cpython/pull/31253

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[issue46708] test_asyncio: test_sock_client_fail() changes asyncio.events._event_loop_policy

[Andrew Svetlov]

Andrew Svetlov  added the comment:

Thanks for the report!
Let me make a fix PR in a few minutes

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[issue46708] test_asyncio: test_sock_client_fail() changes asyncio.events._event_loop_policy

[STINNER Victor]

STINNER Victor  added the comment:

By default, asyncio.events._event_loop_policy is None:

$ ./python -i
>>> import asyncio; asyncio.events._event_loop_policy is None
True


After running the test, it changes:

vstinner@apu$ ./python -i
Python 3.11.0a5+ (heads/main:46328d8ae6, Feb  9 2022, 21:25:58) [GCC 11.2.1 
20211203 (Red Hat 11.2.1-7)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import asyncio; asyncio.events._event_loop_policy is None
True
>>> 
vstinner@apu$ ./python -i -m test test_asyncio -m test_sock_client_fail
(...)
Tests result: SUCCESS
(...)
SystemExit: 0
>>> import asyncio; asyncio.events._event_loop_policy


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[issue46708] test_asyncio: test_sock_client_fail() changes asyncio.events._event_loop_policy

[STINNER Victor]

New submission from STINNER Victor :

Seen on s390x RHEL7 Refleaks 3.x:
https://buildbot.python.org/all/#/builders/129/builds/300

== Tests result: FAILURE ==
(...)
3 tests failed:
test_asyncio test_importlib test_unittest
(...)
0:36:44 load avg: 0.50 Re-running test_asyncio in verbose mode (matching: 
test_sock_client_fail)
beginning 6 repetitions
123456
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.EPollEventLoopTests) ... ok
test_sock_client_fail (test.test_asyncio.test_sock_lowlevel.PollEventLoopTests) 
... ok
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.SelectEventLoopTests) ... ok

--
Ran 3 tests in 0.062s

OK
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.EPollEventLoopTests) ... ok
test_sock_client_fail (test.test_asyncio.test_sock_lowlevel.PollEventLoopTests) 
... ok
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.SelectEventLoopTests) ... ok

--
Ran 3 tests in 0.061s

OK
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.EPollEventLoopTests) ... ok
test_sock_client_fail (test.test_asyncio.test_sock_lowlevel.PollEventLoopTests) 
... ok
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.SelectEventLoopTests) ... ok

--
Ran 3 tests in 0.055s

OK
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.EPollEventLoopTests) ... ok
test_sock_client_fail (test.test_asyncio.test_sock_lowlevel.PollEventLoopTests) 
... ok
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.SelectEventLoopTests) ... ok

--
Ran 3 tests in 0.053s

OK
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.EPollEventLoopTests) ... ok
test_sock_client_fail (test.test_asyncio.test_sock_lowlevel.PollEventLoopTests) 
... ok
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.SelectEventLoopTests) ... ok

--
Ran 3 tests in 0.060s

OK
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.EPollEventLoopTests) ... ok
test_sock_client_fail (test.test_asyncio.test_sock_lowlevel.PollEventLoopTests) 
... ok
test_sock_client_fail 
(test.test_asyncio.test_sock_lowlevel.SelectEventLoopTests) ... ok

--
Ran 3 tests in 0.060s

OK
..
Warning -- asyncio.events._event_loop_policy was modified by test_asyncio
Warning --   Before: None
Warning --   After:  

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components: Tests, asyncio
messages: 412991
nosy: asvetlov, vstinner, yselivanov
priority: normal
severity: normal
status: open
title: test_asyncio: test_sock_client_fail() changes 
asyncio.events._event_loop_policy
versions: Python 3.11

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