[issue29290] argparse breaks long lines on NO-BREAK SPACE

Xiang Zhang added the comment: I can't reproduce the failure in anyway. :-( Could you do some investigation and give more info? -- ___ Python tracker

[issue29290] argparse breaks long lines on NO-BREAK SPACE

wim glenn added the comment: The test "test_help_non_breaking_spaces" from Zhang's commit fails on my platform (other 1563 tests in the module all pass). Interestingly, if running the entire test suite, it doesn't fail. It's only when executing the test_argparse.py module directly that

[issue29290] argparse breaks long lines on NO-BREAK SPACE

Changes by Donald Stufft : -- pull_requests: +999 ___ Python tracker ___ ___

[issue29290] argparse breaks long lines on NO-BREAK SPACE

Xiang Zhang added the comment: Thanks Serhiy. BTW, #16623 is about 2.7 and the cause is wrap doesn't handle unicode non-breaking spaces right. So it's not the same thing as here. -- resolution: -> fixed stage: commit review -> resolved status: open -> closed

[issue29290] argparse breaks long lines on NO-BREAK SPACE

Roundup Robot added the comment: New changeset 98cde683b9c6 by Xiang Zhang in branch '3.5': Issue #29290: argparse help messages won't wrap at non-breaking spaces. https://hg.python.org/cpython/rev/98cde683b9c6 New changeset 1754722ec296 by Xiang Zhang in branch '3.6': Issue #29290: Merge 3.5.

[issue29290] argparse breaks long lines on NO-BREAK SPACE

Serhiy Storchaka added the comment: LGTM. You perhaps need to change your email provider Xiang. It fails too often. -- assignee: -> xiang.zhang stage: patch review -> commit review ___ Python tracker

[issue29290] argparse breaks long lines on NO-BREAK SPACE

Xiang Zhang added the comment: v2 addresses the comments. I didn't receive the review notification mail so just saw them today. :-( -- stage: -> patch review Added file: http://bugs.python.org/file46376/argparse-help-non-breaking-spaces-2.patch

[issue29290] argparse breaks long lines on NO-BREAK SPACE

Changes by Peter Otten <__pete...@web.de>: -- nosy: +peter.otten ___ Python tracker ___ ___ Python-bugs-list

[issue29290] argparse breaks long lines on NO-BREAK SPACE

Xiang Zhang added the comment: I think this is a regression when coming to 3.x. In 2.7, r'\s+' is by default in ASCII mode and won't match unicode non-breaking spaces. In 3.x it's by default unicode mode so non-breaking spaces are replaced by spaces. I think we can just use [ \t\n\r\f\v]+.

[issue29290] argparse breaks long lines on NO-BREAK SPACE

Xiang Zhang added the comment: textwrap has been fixed in #20491 but this problem still exists. The reason seems to be that argparse replaces the non-break spaces with spaces: before self.whitespace_matcher.sub 'Disable default font-style: condensed. Also disables "M+\\xa01M" condensed

[issue29290] argparse breaks long lines on NO-BREAK SPACE

Martin Panter added the comment: Maybe a duplicate of Issue 16623 -- nosy: +martin.panter ___ Python tracker ___

[issue29290] argparse breaks long lines on NO-BREAK SPACE

Steven D'Aprano added the comment: Here's a slightly simpler demo, without the (fortunately harmless) typo. -- Added file: http://bugs.python.org/file46311/argparse_nobreak.py ___ Python tracker

[issue29290] argparse breaks long lines on NO-BREAK SPACE

Changes by Steven D'Aprano : Removed file: http://bugs.python.org/file46310/argparse_nobreak.py ___ Python tracker ___

[issue29290] argparse breaks long lines on NO-BREAK SPACE

New submission from Steven D'Aprano: argparse help incorrectly breaks long lines on U+u00A0 NO-BREAK SPACE. The attached script has been run on Python 3.5.3rc1 in a terminal window 80 columns wide, and it produces output:: usage: argparse_nobreak.py [-h] [--no-condensed] optional