python lib re uses obsolete sense of \w in full violation of UTS#18 RL1.2a

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Assessment

Difficulty
5/5
Estimated time
Over a week
Newbie friendliness
25/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
python
Domain
backend, internationalization

Research direction

Read the uploaded alnum.python test case and the Regular Expressions/Unicode issue details first. Compare Python's re behavior with UTS#18 RL1.2a to identify the reported Unicode conformance gap. Done means the documented [?25l\w behavior conforms to the cited requirement and the test case passes.

Written by the indexing model from the issue text.

Description

3.11 topic-regex topic-unicode type-bug
BPO 12731
Nosy @malemburg, @gvanrossum, @terryjreedy, @pitrou, @benjaminp, @ezio-melotti, @serhiy-storchaka, @JustinTArthur, @htInEdin
Files
  • alnum.python: test case showing conformance bugs in Python re lib when handling Unicode
    		•

    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 = None
created_at = <Date 2011-08-11.19:18:31.049>
labels = ['expert-regex', 'type-bug', 'expert-unicode', '3.11']
title = 'python lib re uses obsolete sense of \\w in full violation of UTS#18 RL1.2a'
updated_at = <Date 2021-05-26.18:46:48.457>
user = 'https://bugs.python.org/tchrist'

    bugs.python.org fields:

    activity = <Date 2021-05-26.18:46:48.457>
actor = 'pitrou'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Regular Expressions', 'Unicode']
creation = <Date 2011-08-11.19:18:31.049>
creator = 'tchrist'
dependencies = []
files = ['22881']
hgrepos = []
issue_num = 12731
keywords = []
message_count = 14.0
messages = ['141920', '141993', '142001', '142030', '142112', '143040', '143091', '143092', '143109', '143113', '144663', '313850', '334508', '361105']
nosy_count = 13.0
nosy_names = ['lemburg', 'gvanrossum', 'terry.reedy', 'pitrou', 'benjamin.peterson', 'ezio.melotti', 'mrabarnett', 'Arfrever', 'docs@python', 'tchrist', 'serhiy.storchaka', 'JustinTArthur', 'HThompson']
pr_nums = []
priority = 'normal'
resolution = None
stage = 'needs patch'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue12731'
versions = ['Python 3.11']

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