New submission from STINNER Victor: While stressing the system to get system load of at least 5 (I have 4 logical CPUs), I got an import error whereas the module exists.
See recent changes to fix race conditions in importlib: * bpo-30891: commit e72b1359f81d1dd42bd8a5c5cc2b3928b74f8023 * bpo-30891: commit 4f9a446f3fb42f800e73cd9414dd1eccb3ca4fa7 * bpo-31070: commit 9b0d1d647e3d2ec9d299e5c9f49b02fbbb810a5a * bpo-30814: commit b4baacee1adc06edbe30ac7574d17a8cd168e2e0 * ... I used my system_load.py script to stress my Linux: https://github.com/haypo/misc/blob/master/bin/system_load.py haypo@selma$ ./python -m test -r --randseed=7323369 -R 3:3 -j2 -m test.test_robotparser.PasswordProtectedSiteTestCase.testPasswordProtectedSite test_robotparser test_robotparser test_robotparser test_robotparsertest_robotparser test_robotparser test_robotparser test_robotparser Using random seed 7323369 Run tests in parallel using 2 child processes 0:00:01 load avg: 9.05 [1/7] test_robotparser passed beginning 6 repetitions 123456 ...... 0:00:01 load avg: 9.05 [2/7] test_robotparser passed beginning 6 repetitions 123456 ...... 0:00:02 load avg: 10.33 [3/7] test_robotparser passed beginning 6 repetitions 123456 ...... 0:00:02 load avg: 10.33 [4/7] test_robotparser passed beginning 6 repetitions 123456 ...... 0:00:03 load avg: 10.33 [5/7/1] test_robotparsertest_robotparser failed test test_robotparsertest_robotparser crashed -- Traceback (most recent call last): File "/home/haypo/prog/python/master/Lib/test/libregrtest/runtest.py", line 163, in runtest_inner the_module = importlib.import_module(abstest) File "/home/haypo/prog/python/master/Lib/importlib/__init__.py", line 127, in import_module return _bootstrap._gcd_import(name[level:], package, level) File "<frozen importlib._bootstrap>", line 994, in _gcd_import File "<frozen importlib._bootstrap>", line 971, in _find_and_load File "<frozen importlib._bootstrap>", line 953, in _find_and_load_unlocked ModuleNotFoundError: No module named 'test.test_robotparsertest_robotparser' 0:00:03 load avg: 10.33 [6/7/1] test_robotparser passed beginning 6 repetitions 123456 ...... 0:00:04 load avg: 10.33 [7/7/1] test_robotparser passed beginning 6 repetitions 123456 ...... 6 tests OK. 1 test failed: test_robotparsertest_robotparser Total duration: 4 sec Tests result: FAILURE ---------- messages: 300686 nosy: brett.cannon, eric.snow, haypo, ncoghlan, serhiy.storchaka priority: normal severity: normal status: open title: importlib race condition _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue31257> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
