[issue13042] argparse: terminal width is not detected properly

[Zbyszek Szmek]

New submission from Zbyszek Szmek zbys...@in.waw.pl:

COLUMNS is a shell variable (updated whenever the window size
changes), that usually isn't exported to programs. Therefore checking
for COLUMNS in sys.environ will not work in the majority of cases. The
proper check is to use the TIOCGWINSZ ioctl on stdout.

Why COLUMNS is not exported? Because it can change during the lifetime
of a program. Therefore it is better to use the dynamic ioctl.

--
components: Library (Lib)
files: patch1.diff
keywords: patch
messages: 144508
nosy: zbysz
priority: normal
severity: normal
status: open
title: argparse: terminal width is not detected properly
type: behavior
versions: Python 3.3, Python 3.4
Added file: http://bugs.python.org/file23239/patch1.diff

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[issue13042] argparse: terminal width is not detected properly

[Ezio Melotti]

Changes by Ezio Melotti ezio.melo...@gmail.com:


--
resolution:  - duplicate
stage:  - committed/rejected
status: open - closed
superseder:  - argparse: terminal width is not detected properly

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[issue13042] argparse: terminal width is not detected properly

[Zbyszek Szmek]

Zbyszek Szmek zbys...@in.waw.pl added the comment:

Hm, I have somehow submitted the same tex ttwwiiccee. Sorry about that.

--

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