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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
Description
| BPO | 43844 |
|---|---|
| Nosy | @vstinner, @tirkarthi |
| PRs |
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
vstinner commentedon Apr 14, 2021
<string>:2: PendingDeprecationWarning: lib2to3 package is deprecated and may not be able to parse Python 3.10+
Command to only re-run this test:
./python -Werror -m test -v test_lib2to3 -m test_load_grammar_from_subprocess
[-][easy][/-][+][easy] test_lib2to3 logs a PendingDeprecationWarning: lib2to3 package is deprecated and may not be able to parse Python 3.10+[/+][-][easy][/-][+][easy] test_lib2to3 logs a PendingDeprecationWarning: lib2to3 package is deprecated and may not be able to parse Python 3.10+[/+]tirkarthi commentedon Apr 14, 2021
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
vstinner commentedon Apr 16, 2021
New changeset 471870f by Victor Stinner in branch 'master':
bpo-43844: Fix PendingDeprecationWarning in test_lib2to3 (GH-25407)
471870f