Issue41970
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Created on 2020-10-07 23:05 by felixonmars, last changed 2022-04-11 14:59 by admin. This issue is now closed.
Pull Requests | |||
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URL | Status | Linked | Edit |
PR 22595 | merged | pablogsal, 2020-10-08 13:01 | |
PR 22609 | merged | xtreak, 2020-10-09 03:01 |
Messages (14) | |||
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msg378190 - (view) | Author: Felix Yan (felixonmars) * | Date: 2020-10-07 23:05 | |
I am packaging Python for Arch and the tests suite of Python 3.8.6 pass here without this: ``` 0:09:06 load avg: 0.87 [205/424] test_lib2to3 test test_lib2to3 crashed -- Traceback (most recent call last): File "/build/python/src/Python-3.9.0/Lib/test/libregrtest/runtest.py", line 270, in _runtest_inner refleak = _runtest_inner2(ns, test_name) File "/build/python/src/Python-3.9.0/Lib/test/libregrtest/runtest.py", line 221, in _runtest_inner2 the_module = importlib.import_module(abstest) File "/build/python/src/Python-3.9.0/Lib/importlib/__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1030, in _gcd_import File "<frozen importlib._bootstrap>", line 1007, in _find_and_load File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 680, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 790, in exec_module File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed File "/build/python/src/Python-3.9.0/Lib/test/test_lib2to3.py", line 5, in <module> from lib2to3.tests import load_tests File "/build/python/src/Python-3.9.0/Lib/contextlib.py", line 124, in __exit__ next(self.gen) File "/build/python/src/Python-3.9.0/Lib/test/support/__init__.py", line 1171, in _filterwarnings raise AssertionError("filter (%r, %s) did not catch any warning" % AssertionError: filter ('', PendingDeprecationWarning) did not catch any warning 0:09:06 load avg: 0.87 [206/424/1] test_linecache -- test_lib2to3 failed ``` |
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msg378196 - (view) | Author: Pablo Galindo Salgado (pablogsal) * ![]() |
Date: 2020-10-07 23:31 | |
Same thing as in https://bugs.python.org/issue41971. I cannot reproduce this with a fresh install of 3.9 and our buildbots are not complaining about this. ownloads/Python-3.9.0 ❯ ./python -m test test_lib2to3 0:00:00 load avg: 3.64 Run tests sequentially 0:00:00 load avg: 3.64 [1/1] test_lib2to3 == Tests result: SUCCESS == 1 test OK. Total duration: 7.5 sec Tests result: SUCCESS ------- ❯ ./lel/bin/python3 -m test test_lib2to3 0:00:00 load avg: 3.87 Run tests sequentially 0:00:00 load avg: 3.87 [1/1] test_lib2to3 == Tests result: SUCCESS == 1 test OK. Total duration: 7.4 sec Tests result: SUCCESS |
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msg378205 - (view) | Author: Karthikeyan Singaravelan (xtreak) * ![]() |
Date: 2020-10-08 00:15 | |
I have also seen this and linked issue on running whole test suite while building python myself but running individual tests show no error and buildbots also never complained so I thought it's something wrong with my setup. I introduced the commit to silence deprecation warning due to lib2to3 and cannot reproduce the same running it individually. |
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msg378208 - (view) | Author: Pablo Galindo Salgado (pablogsal) * ![]() |
Date: 2020-10-08 00:24 | |
> I have also seen this and linked issue on running whole test suite while building python myself but running individual tests show no error and buildbots also never complained so I thought it's something wrong with my setup. I introduced the commit to silence deprecation warning due to lib2to3 and cannot reproduce the same running it individually. What I don't understand then is how the buildbots or the CI in Github that run all tests sequentially with the extra flags (-uall and friends) have not complained yet about this. @Felix, how consistent is this failure you are experiencing? |
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msg378232 - (view) | Author: Federico Granata (federico.granata) | Date: 2020-10-08 10:57 | |
I just experienced the very same issue. I use pyenv and doing all tests gives me a failure on test_lib2to3 while running it individually end succesfully. Tell me if I can provide any useful information |
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msg378234 - (view) | Author: Karthikeyan Singaravelan (xtreak) * ![]() |
Date: 2020-10-08 11:17 | |
Pablo, I can see the error in Travis. The difference I can see is that the tests are executed sequentially in coverage run but normal run has tests executing in parallel. Felix and Federico, can you please add the command you use to run the tests? Sample error build : https://travis-ci.com/github/python/cpython/jobs/396688564#L2022 coverage run but has true in the end thus being always successful xvfb-run ./venv/bin/python -m coverage run --branch --pylib -m test --fail-env-changed -uall,-cpu -x test_multiprocessing_fork -x test_multiprocessing_forkserver -x test_multiprocessing_spawn -x test_concurrent_futures || true Normal run /home/travis/build/python/cpython/python -u -W default -bb -E -m test -r -w -j 1 -u all -W --slowest --fail-env-changed --timeout=1200 -j4 -uall,-cpu |
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msg378238 - (view) | Author: Felix Yan (felixonmars) * | Date: 2020-10-08 11:36 | |
I use this in Arch's packaging: LC_CTYPE=en_US.UTF-8 xvfb-run -s "-screen 0 1920x1080x16 -ac +extension GLX" -a -n "$servernum" \ "${srcdir}/Python-${pkgver}/python" -m test.regrtest -v -uall -x test_tk (test_tk is currently skipped due to https://bugs.python.org/issue41306) |
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msg378240 - (view) | Author: Federico Granata (federico.granata) | Date: 2020-10-08 12:02 | |
I just run "python -m test" for it to fail and "python -m test test_lib2to3" for it to succeded. |
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msg378241 - (view) | Author: Karthikeyan Singaravelan (xtreak) * ![]() |
Date: 2020-10-08 12:13 | |
I can reproduce this by running test_lib2to3 twice or running test___all__ with test_lib2to3 ./python -m test test_lib2to3 test_lib2to3 0:00:00 load avg: 0.03 Run tests sequentially 0:00:00 load avg: 0.03 [1/2] test_lib2to3 0:00:13 load avg: 0.25 [2/2] test_lib2to3 test test_lib2to3 crashed -- Traceback (most recent call last): File "/root/cpython/Lib/test/libregrtest/runtest.py", line 272, in _runtest_inner refleak = _runtest_inner2(ns, test_name) File "/root/cpython/Lib/test/libregrtest/runtest.py", line 223, in _runtest_inner2 the_module = importlib.import_module(abstest) File "/root/cpython/Lib/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1030, in _gcd_import File "<frozen importlib._bootstrap>", line 1007, in _find_and_load File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 680, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 790, in exec_module File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed File "/root/cpython/Lib/test/test_lib2to3.py", line 5, in <module> from lib2to3.tests import load_tests File "/root/cpython/Lib/contextlib.py", line 124, in __exit__ next(self.gen) File "/root/cpython/Lib/test/support/warnings_helper.py", line 179, in _filterwarnings raise AssertionError("filter (%r, %s) did not catch any warning" % AssertionError: filter ('', PendingDeprecationWarning) did not catch any warning test_lib2to3 failed == Tests result: FAILURE == 1 test OK. 1 test failed: test_lib2to3 Total duration: 13.5 sec Tests result: FAILURE ./python -m test test___all__ test_lib2to3 0:00:00 load avg: 0.05 Run tests sequentially 0:00:00 load avg: 0.05 [1/2] test___all__ 0:00:00 load avg: 0.05 [2/2] test_lib2to3 test test_lib2to3 crashed -- Traceback (most recent call last): File "/root/cpython/Lib/test/libregrtest/runtest.py", line 272, in _runtest_inner refleak = _runtest_inner2(ns, test_name) File "/root/cpython/Lib/test/libregrtest/runtest.py", line 223, in _runtest_inner2 the_module = importlib.import_module(abstest) File "/root/cpython/Lib/importlib/__init__.py", line 126, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 1030, in _gcd_import File "<frozen importlib._bootstrap>", line 1007, in _find_and_load File "<frozen importlib._bootstrap>", line 986, in _find_and_load_unlocked File "<frozen importlib._bootstrap>", line 680, in _load_unlocked File "<frozen importlib._bootstrap_external>", line 790, in exec_module File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed File "/root/cpython/Lib/test/test_lib2to3.py", line 5, in <module> from lib2to3.tests import load_tests File "/root/cpython/Lib/contextlib.py", line 124, in __exit__ next(self.gen) File "/root/cpython/Lib/test/support/warnings_helper.py", line 179, in _filterwarnings raise AssertionError("filter (%r, %s) did not catch any warning" % AssertionError: filter ('', PendingDeprecationWarning) did not catch any warning test_lib2to3 failed == Tests result: FAILURE == 1 test OK. 1 test failed: test_lib2to3 Total duration: 1.1 sec Tests result: FAILURE |
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msg378242 - (view) | Author: Federico Granata (federico.granata) | Date: 2020-10-08 12:17 | |
I can have the test to fails if I run "python -m test test_lib2to3 test_lib2to3" as well |
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msg378245 - (view) | Author: Pablo Galindo Salgado (pablogsal) * ![]() |
Date: 2020-10-08 12:41 | |
Ok, thanks everyone for the help reproducing this. I think I can work on a fix today |
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msg378246 - (view) | Author: Karthikeyan Singaravelan (xtreak) * ![]() |
Date: 2020-10-08 12:55 | |
I guess this could be due to loading the module twice where the warning is not emitted again on reimport which test__all__ seems to do so by importing lib2to3. One obvious fix would be to pass quiet=True. Else we need to find a way to import the module fresh like using import_fresh_module. Two possible patches. I assumed running tests sequentially will provide support for isolation too. Optional argument: - if 'quiet' is True, it does not fail if a filter catches nothing (default True without argument, default False if some filters are defined) Without argument, it defaults to: check_warnings(("", Warning), quiet=True) # Using import fresh module diff --git a/Lib/test/test_lib2to3.py b/Lib/test/test_lib2to3.py index 159a8387e4..861ae5ad53 100644 --- a/Lib/test/test_lib2to3.py +++ b/Lib/test/test_lib2to3.py @@ -1,7 +1,9 @@ import unittest +from test.support.import_helper import import_fresh_module from test.support.warnings_helper import check_warnings with check_warnings(("", PendingDeprecationWarning)): + lib2to3 = import_fresh_module("lib2to3") from lib2to3.tests import load_tests if __name__ == '__main__': # Passing quiet=True diff --git a/Lib/test/test_lib2to3.py b/Lib/test/test_lib2to3.py index 159a8387e4..e4c5cade8b 100644 --- a/Lib/test/test_lib2to3.py +++ b/Lib/test/test_lib2to3.py @@ -1,7 +1,7 @@ import unittest from test.support.warnings_helper import check_warnings -with check_warnings(("", PendingDeprecationWarning)): +with check_warnings(("", PendingDeprecationWarning), quiet=True): from lib2to3.tests import load_tests if __name__ == '__main__': ➜ cpython git:(master) ✗ ./python -m test test_lib2to3 test_lib2to3 0:00:00 load avg: 0.01 Run tests sequentially 0:00:00 load avg: 0.01 [1/2] test_lib2to3 0:00:13 load avg: 0.23 [2/2] test_lib2to3 == Tests result: SUCCESS == All 2 tests OK. Total duration: 27.3 sec Tests result: SUCCESS |
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msg378249 - (view) | Author: miss-islington (miss-islington) | Date: 2020-10-08 13:24 | |
New changeset 4a9f82f50d957b6cf3fd207de8b583d9137316b8 by Pablo Galindo in branch 'master': bpo-41970: Avoid test failure in test_lib2to3 if the module is already imported (GH-22595) https://github.com/python/cpython/commit/4a9f82f50d957b6cf3fd207de8b583d9137316b8 |
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msg378310 - (view) | Author: Pablo Galindo Salgado (pablogsal) * ![]() |
Date: 2020-10-09 10:08 | |
New changeset c6f41e62f55933f9735e9b9c103c6860685b028a by Karthikeyan Singaravelan in branch '3.9': [3.9] bpo-41970: Avoid test failure in test_lib2to3 if the module is already imported (GH-22595) (GH-22609) https://github.com/python/cpython/commit/c6f41e62f55933f9735e9b9c103c6860685b028a |
History | |||
---|---|---|---|
Date | User | Action | Args |
2022-04-11 14:59:36 | admin | set | github: 86136 |
2020-10-09 10:09:01 | pablogsal | set | status: open -> closed resolution: fixed stage: patch review -> resolved |
2020-10-09 10:08:49 | pablogsal | set | messages: + msg378310 |
2020-10-09 03:01:41 | xtreak | set | pull_requests: + pull_request21592 |
2020-10-08 13:24:37 | miss-islington | set | nosy:
+ miss-islington messages: + msg378249 |
2020-10-08 13:01:15 | pablogsal | set | keywords:
+ patch stage: patch review pull_requests: + pull_request21583 |
2020-10-08 12:55:15 | xtreak | set | messages:
+ msg378246 versions: + Python 3.10 |
2020-10-08 12:41:06 | pablogsal | set | messages: + msg378245 |
2020-10-08 12:17:11 | federico.granata | set | messages: + msg378242 |
2020-10-08 12:13:56 | xtreak | set | messages: + msg378241 |
2020-10-08 12:02:13 | federico.granata | set | messages: + msg378240 |
2020-10-08 11:36:07 | felixonmars | set | messages: + msg378238 |
2020-10-08 11:17:39 | xtreak | set | messages: + msg378234 |
2020-10-08 10:57:29 | federico.granata | set | nosy:
+ federico.granata messages: + msg378232 |
2020-10-08 00:24:41 | pablogsal | set | messages: + msg378208 |
2020-10-08 00:15:15 | xtreak | set | nosy:
+ xtreak messages: + msg378205 |
2020-10-07 23:31:12 | pablogsal | set | nosy:
+ pablogsal messages: + msg378196 |
2020-10-07 23:05:57 | felixonmars | create |