[issue16623] argparse help formatter does not honor non-breaking space

[Cheryl Sabella]

Change by Cheryl Sabella :


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resolution:  -> out of date
stage: needs patch -> resolved
status: open -> closed

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[issue16623] argparse help formatter does not honor non-breaking space

[hai shi]

hai shi  added the comment:

> Python 2 is EOL, so I think this issue should be closed.

+1, if someone need create a PR, we can reopen it again.

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[issue16623] argparse help formatter does not honor non-breaking space

[Zackery Spytz]

Zackery Spytz  added the comment:

Python 2 is EOL, so I think this issue should be closed.

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[issue16623] argparse help formatter does not honor non-breaking space

[hai shi]

hai shi  added the comment:

oh, typo error. the help_lines' width in python2.7 is different python3.-->the 
help_lines' width in python2.7 is different with python3.x

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[issue16623] argparse help formatter does not honor non-breaking space

[hai shi]

hai shi  added the comment:

I checked the help format.
the help_lines' width in python2.7 is different python3.

The width is more likely a hardcode in 
https://github.com/python/cpython/blob/2.7/Lib/argparse.py#L165.
, so the help_lines = [u'This is a very long help string. ex: "--s3', 
u's3://my.bucket/dir1/dir2"'](when joining this help_lines it will add a '\n' 
in the middle)

Since python 3.3, the width is a dynamic value in 
https://github.com/python/cpython/blob/master/Lib/argparse.py#L170
, so the help_lines = ['This is a very long help string. ex: 
"--s3\xa0s3://my.bucket/dir1/dir2"']

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nosy: +shihai1991

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[issue16623] argparse help formatter does not honor non-breaking space

[Peter Otten]

Changes by Peter Otten <__pete...@web.de>:


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nosy: +peter.otten

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[issue16623] argparse help formatter does not honor non-breaking space

[Mark Lawrence]

Changes by Mark Lawrence :


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nosy:  -BreamoreBoy

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[issue16623] argparse help formatter does not honor non-breaking space

[Xiang Zhang]

Xiang Zhang added the comment:

Ahh, sorry. I made a mistake. It's not the same as 29290. This is about 2.7. 
Although #20491 is closed but 2.7 seems not patched. Nosy Serhiy.

--
nosy: +serhiy.storchaka
resolution: fixed -> 
stage: resolved -> needs patch
status: closed -> open
superseder: argparse breaks long lines on NO-BREAK SPACE -> 

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[issue16623] argparse help formatter does not honor non-breaking space

[Xiang Zhang]

Xiang Zhang added the comment:

#29290 reports the same problem as here.

--
nosy: +xiang.zhang
resolution:  -> fixed
stage:  -> resolved
status: open -> closed
superseder:  -> argparse breaks long lines on NO-BREAK SPACE

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[issue16623] argparse help formatter does not honor non-breaking space

[Mark Lawrence]

Mark Lawrence added the comment:

The example code works fine using 3.4.1 and 3.5.0a0 on Windows 7.

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nosy: +BreamoreBoy, paul.j3

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[issue16623] argparse help formatter does not honor non-breaking space

[paul j3]

paul j3 added the comment:

The issue here is how `textwrap` handles the non-breaking space.  That's being 
address here:

http://bugs.python.org/issue20491 textwrap: Non-breaking space not honored

Temporarily an `argparse` user can get around it with 
`formatter_class=argparse.RawTextHelpFormatter`.  That suppresses all automatic 
wrapping, so it's not perfect.

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[issue16623] argparse help formatter does not honor non-breaking space

[Terry J. Reedy]

Changes by Terry J. Reedy tjre...@udel.edu:


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nosy: +bethard

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[issue16623] argparse help formatter does not honor non-breaking space

[Roy Smith]

New submission from Roy Smith:

Running this code:

---
import argparse

p = argparse.ArgumentParser()
p.add_argument('--foo',
   help=u'This is a very long help string.  ex: 
--s3\u00A0s3://my.bucket/dir1/dir2')
p.parse_args()
---

produces:

---
$ ./arg.py  --help
usage: arg.py [-h] [--foo FOO]

optional arguments:
  -h, --help  show this help message and exit
  --foo FOO   This is a very long help string. ex: --s3
  s3://my.bucket/dir1/dir2
---

It should not be breaking the line at a non-breaking space.  I'm running:

Python 2.7.3 (default, Aug  1 2012, 05:14:39) 
[GCC 4.6.3] on linux2

--
components: Library (Lib)
messages: 177012
nosy: roysmith
priority: normal
severity: normal
status: open
title: argparse help formatter does not honor non-breaking space
type: behavior
versions: Python 2.7

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[issue16623] argparse help formatter does not honor non-breaking space

[Chris Jerdonek]

Changes by Chris Jerdonek chris.jerdo...@gmail.com:


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nosy: +chris.jerdonek

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