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[easy] test_lib2to3 logs a PendingDeprecationWarning: lib2to3 package is deprecated and may not be able to parse Python 3.10+ #88010

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[easy] test_lib2to3 logs a PendingDeprecationWarning: lib2to3 package is deprecated and may not be able to parse Python 3.10+#88010
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3.10 (EOL)end of lifeeasytestsTests in the Lib/test dir

Description

@vstinner
vstinner
opened on Apr 14, 2021
BPO 43844
Nosy @vstinner, @tirkarthi
PRs
  • bpo-43844: Fix PendingDeprecationWarning in test_lib2to3 #25407
    		•

    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 2021-04-16.09:46:02.441>
created_at = <Date 2021-04-14.11:38:57.758>
labels = ['easy', 'tests', '3.10']
title = '[easy]  test_lib2to3 logs a PendingDeprecationWarning: lib2to3 package is deprecated and may not be able to parse Python 3.10+'
updated_at = <Date 2021-04-16.09:46:02.440>
user = 'https://github.com/vstinner'

    bugs.python.org fields:

    activity = <Date 2021-04-16.09:46:02.440>
actor = 'vstinner'
assignee = 'none'
closed = True
closed_date = <Date 2021-04-16.09:46:02.441>
closer = 'vstinner'
components = ['Tests']
creation = <Date 2021-04-14.11:38:57.758>
creator = 'vstinner'
dependencies = []
files = []
hgrepos = []
issue_num = 43844
keywords = ['patch', 'easy', 'newcomer friendly']
message_count = 3.0
messages = ['391062', '391076', '391176']
nosy_count = 2.0
nosy_names = ['vstinner', 'xtreak']
pr_nums = ['25407']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = None
url = 'https://bugs.python.org/issue43844'
versions = ['Python 3.10']

    Activity

    1. vstinner commented on Apr 14, 2021

      @vstinner
      vstinner
      on Apr 14, 2021
      MemberAuthor

      <string>:2: PendingDeprecationWarning: lib2to3 package is deprecated and may not be able to parse Python 3.10+

      $ ./python -m test -v test_lib2to3
(...)
test_load_grammar_from_subprocess (lib2to3.tests.test_parser.TestPgen2Caching) ... <string>:2: PendingDeprecationWarning: lib2to3 package is deprecated and may not be able to parse Python 3.10+
ok
(...)
Tests result: SUCCESS

      Command to only re-run this test:

      ./python -Werror -m test -v test_lib2to3 -m test_load_grammar_from_subprocess

    2. vstinner
      changed the title [-][easy][/-] [+][easy] test_lib2to3 logs a PendingDeprecationWarning: lib2to3 package is deprecated and may not be able to parse Python 3.10+[/+] on Apr 14, 2021
    3. vstinner
      changed the title [-][easy][/-] [+][easy] test_lib2to3 logs a PendingDeprecationWarning: lib2to3 package is deprecated and may not be able to parse Python 3.10+[/+] on Apr 14, 2021
    4. vstinner
      added
      easy
      testsTests in the Lib/test dir
      3.10 (EOL)end of life
      on Apr 14, 2021

    5. tirkarthi commented on Apr 14, 2021

      @tirkarthi
      tirkarthi
      on Apr 14, 2021
      Member

      I fixed this in #21694 . Somehow this seems to emit warning over full test run and not in individual case :( Is there a command to reproduce this always? I ran the command but it's successful for me and doesn't show the warning.

      ./python -Werror -m test -v test_lib2to3 -m test_load_grammar_from_subprocess
      == CPython 3.10.0a7+ (heads/master:d9151cb453, Apr 13 2021, 03:10:47) [GCC 7.5.0]
      == Linux-4.15.0-99-generic-x86_64-with-glibc2.27 little-endian
      == cwd: /root/cpython/build/test_python_20462æ
      == CPU count: 1
      == encodings: locale=UTF-8, FS=utf-8
      0:00:00 load avg: 0.02 Run tests sequentially
      0:00:00 load avg: 0.02 [1/1] test_lib2to3
      test_load_grammar_from_subprocess (lib2to3.tests.test_parser.TestPgen2Caching) ... ok

      ----------------------------------------------------------------------

      Ran 1 test in 0.164s

      OK

      == Tests result: SUCCESS ==

      1 test OK.

      Total duration: 303 ms
      Tests result: SUCCESS

    6. vstinner commented on Apr 16, 2021

      @vstinner
      vstinner
      on Apr 16, 2021
      MemberAuthor

      New changeset 471870f by Victor Stinner in branch 'master':
      bpo-43844: Fix PendingDeprecationWarning in test_lib2to3 (GH-25407)
      471870f

    7. vstinner
      closed this as completedon Apr 16, 2021
    8. vstinner
      closed this as completedon Apr 16, 2021
    9. ezio-melotti
      transferred this issue fromon Apr 10, 2022
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