bug#70617: 30.0.50; python-indent-shift-right indents left when line is whitespace

[Eli Zaretskii]

tags 70617 wontfix
close 70617
thanks

> Date: Tue, 30 Apr 2024 16:26:13 +0900
> From: kobarity <kobarity@gmail.com>
> Cc: 70617@debbugs.gnu.org
> 
> Eli Zaretskii wrote:
> > 
> > > From: Patrick Poitras <patrick.f.poitras@gmail.com>
> > > Date: Sat, 27 Apr 2024 16:16:46 -0700
> > > 
> > > Hi all.
> > > 
> > > I've noticed this weird behavior of python-indent-shift-right.
> > > 
> > > Let's say I have a block of code. The "|" character represents my cursor
> > > 
> > > In a python file, I write
> > > 
> > > if True:
> > > |
> > > 
> > > (... file contents continue)
> > > 
> > > and then call python-indent-shift-right on an empty line. It does 
> > > nothing. If the second line has any amount of
> > > spaces, the whitespace is entirely deleted. 
> > > 
> > > Given that Python's whitespace is syntactically significant, the expected 
> > > behavior should be to add an indent
> > > to an empty line, or to prepend 4 characters (or 8, given user choice) to 
> > > the empty line if it has whitespace.
> > > From a cursory glance, I think we're running into some behavior of 
> > > indent-rigidly that tries to prevent the
> > > addition of superfluous white space following an indented block of code. 
> > > I assume this would be potentially
> > > desirable for languages with non-significant whitespace, but in the case 
> > > of the python-specific function, the
> > > resulting behavior defies both the function name and description.
> > 
> > Any comments?
> 
> Hi Patrick,
> 
> I believe this behavior is intended to avoid adding extra whitespaces
> when processing a region containing blank lines.  There may be an
> approach to change to indent even a blank line as a special case when
> the region is not active, but I personally think that Enter or TAB
> indentation is sufficient in such cases.

No further comments, so I'm now closing this bug as wontfix.

Thanks.