Re: pYthon indentation

[rjd <ryan.dixon@etas.com>]

Nick Dokos <ndokos <at> gmail.com> writes:

> There are two competing python modes for emacs, python-mode.el (which is
> what you are talking about IIUC) and python.el which comes with the
> emacs distro. I was using python-mode.el for a while and I always seemed
> to have small annoyances crop up at a regular rate (although I must
> admit, I never did much to improve the situation: they usually cropped
> up when I was under time pressure, so I would just bulldoze my way
> through - by the time I *could* do something about it, I had forgotten
> what the annoyance was - until the next time something bit me...)
> 
> So at some point, I chucked it and started using the built-in python.el.
> I'm sure it too has its share of faults, but so far at least (I've been
> using it for the past year or so), I don't remember being really annoyed
> with it, so I'm sticking with it.
> 
> My 2 cents and of course, YMMV.
> --
> Nick
> 
> 

This was the confusion. The error I am talking about is clearly with
python.el. I have never used python-mode.el until trying to solve this
indentation issue.

The steps to reproduce on Windows 7 (64bit):
i. I downloaded
http://ftp.gnu.org/gnu/emacs/windows/emacs-24.5-bin-i686-mingw32.zip.

ii. I extracted zip file to temp folder; completely unmodified.

iii. I opened an MSYS shell and cd'd into the temp/bin folder.

iv. I ran ./emacs.exe -Q.

v. I C-x C-f and call the new file temp.py

vi. I type the following up UNTIL % - which represents the cursor position:

import re as myre
var = [
%

vii. I then press TAB and get the following message in the mini buffer:

python-indent--calculate-indentation: Wrong type argument:
number-or-marker-p, nil

viii. The debug information shows:

Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
python-indent-context()
python-indent--calculate-indentation()
python-indent-calculate-indentation(nil)
python-indent-line(nil)
python-indent-line-function()
indent-for-tab-command(nil)
call-interactively(indent-for-tab-command nil nil)
command-execute(indent-for-tab-command)