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test_descr: test_vicious_descriptor_nonsense() fails randomly #80291

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test_descr: test_vicious_descriptor_nonsense() fails randomly#80291
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3.8 (EOL)end of lifetestsTests in the Lib/test dir

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@vstinner
vstinner
opened on Feb 25, 2019
BPO 36110
Nosy @vstinner, @serhiy-storchaka, @pablogsal

Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.

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GitHub fields:

assignee = None
closed_at = <Date 2019-02-25.23:23:25.819>
created_at = <Date 2019-02-25.21:45:42.795>
labels = ['3.8', 'tests']
title = 'test_descr: test_vicious_descriptor_nonsense() fails randomly'
updated_at = <Date 2019-02-25.23:23:47.100>
user = 'https://github.com/vstinner'

bugs.python.org fields:

activity = <Date 2019-02-25.23:23:47.100>
actor = 'pablogsal'
assignee = 'none'
closed = True
closed_date = <Date 2019-02-25.23:23:25.819>
closer = 'pablogsal'
components = ['Tests']
creation = <Date 2019-02-25.21:45:42.795>
creator = 'vstinner'
dependencies = []
files = []
hgrepos = []
issue_num = 36110
keywords = []
message_count = 3.0
messages = ['336562', '336575', '336576']
nosy_count = 3.0
nosy_names = ['vstinner', 'serhiy.storchaka', 'pablogsal']
pr_nums = []
priority = 'normal'
resolution = 'duplicate'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue36110'
versions = ['Python 3.8']

Activity

  1. vstinner commented on Feb 25, 2019

    @vstinner
    vstinner
    on Feb 25, 2019
    MemberAuthor

    test_vicious_descriptor_nonsense() started to fails randomly:

    $ ./python -m test -j0 -F test_descr test_descr test_descr test_descr test_descr test_descr
Run tests in parallel using 10 child processes
0:00:03 load avg: 1.24 [1/6] test_descr passed
0:00:03 load avg: 1.70 [2/6/1] test_descr failed
test test_descr failed -- Traceback (most recent call last):
  File "/home/vstinner/prog/python/master/Lib/test/test_descr.py", line 4341, in test_vicious_descriptor_nonsense
    self.assertEqual(c.attr, 1)
  File "/home/vstinner/prog/python/master/Lib/test/test_descr.py", line 4328, in __eq__
    del C.attr
AttributeError: attr
0:00:03 load avg: 1.70 [3/6/1] test_descr passed
0:00:04 load avg: 1.70 [4/6/1] test_descr passed
0:00:04 load avg: 1.70 [5/6/1] test_descr passed
0:00:04 load avg: 1.70 [6/6/1] test_descr passed

    == Tests result: FAILURE ==

    5 tests OK.

    1 test failed:
    test_descr

    Total duration: 4 sec 213 ms
    Tests result: FAILURE

    --

    It seems like it's a regression introduced by this change:

    a24107b is the first bad commit
    commit a24107b
    Author: Serhiy Storchaka <storchaka@gmail.com>
    Date: Mon Feb 25 17:59:46 2019 +0200

    bpo-35459: Use PyDict_GetItemWithError() instead of PyDict_GetItem(). (GH-11112)

    :040000 040000 da22597a443c84fb29588a3557f5dd04e292a1cc fb73df9fbfdc1893e9f0bde9fbc6ab6febabbe8f M Include
    :040000 040000 4b26a84a0e3a813470e34ddef29596da41d3d28f ca6192ea98e014434a32e2a114e42b297408ce00 M Modules
    :040000 040000 b2dd7d4e832c64ba44781a34093c5d69ea127932 26bfeced0b5776634051ed57d701361252c6de68 M Objects
    :040000 040000 6b5a0bf3a25434ee3de5c9dae3e880217773c0fb 56265d6d2cd8cb92ba47541909af2edec46196e6 M Python

  2. vstinner
    added
    3.8 (EOL)end of life
    testsTests in the Lib/test dir
    on Feb 25, 2019

  3. pablogsal commented on Feb 25, 2019

    @pablogsal
    pablogsal
    on Feb 25, 2019
    Member

    Duplicate of https://bugs.python.org/issue36109

  4. pablogsal
    closed this as completedon Feb 25, 2019

  5. pablogsal commented on Feb 25, 2019

    @pablogsal
    pablogsal
    on Feb 25, 2019
    Member

    I was faster this time ;)

  6. ezio-melotti
    transferred this issue fromon Apr 10, 2022
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