GNU bug report logs - #42125
Python mode load failing due to some issue with tramp

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: esr <at> thyrsus.com (Eric S. Raymond)
Subject: bug#42125: closed (Re: bug#42125: Python mode load failing due to
 some issue with tramp)
Date: Sun, 18 Oct 2020 01:40:04 +0000

[Message part 1 (text/plain, inline)]

Your bug report

#42125: Python mode load failing due to some issue with tramp

which was filed against the emacs package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 42125 <at> debbugs.gnu.org.

-- 
42125: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=42125
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

[Message part 2 (message/rfc822, inline)]

From: Stefan Kangas <stefan <at> marxist.se>
To: Eli Zaretskii <eliz <at> gnu.org>
Cc: "Eric S. Raymond" <esr <at> thyrsus.com>, 42125-done <at> debbugs.gnu.org
Subject: Re: bug#42125: Python mode load failing due to some issue with tramp
Date: Sun, 18 Oct 2020 01:39:40 +0000

Eli Zaretskii <eliz <at> gnu.org> writes:

>> From: esr <at> thyrsus.com (Eric S. Raymond)
>> Date: Mon, 29 Jun 2020 10:48:17 -0400 (EDT)
>>
>> Package: emacs
>> Version: 26.3
>>
>> Python mode load is failing due to some issue with tramp.  Likely a
>> loaddefs issue or something similar.  To reproduce, simply visit
>> a file with a .py extension.
>>
>> Stack trace:
>>
>> Debugger entered--Lisp error: (void-variable tramp-default-user-alist)
>>   (member x tramp-default-user-alist)
>
> I cannot reproduce this, FWIW.  Is it possible that some file in your
> ~/.emacs.d directory (or some other init-related feature) gets in the
> way?
>
> P.S.  Did you try this in "emacs -Q"?

More information was requested, but none was given within 15 weeks, so
I'm closing this bug.

If this is still an issue, please reply to this email (use "Reply to
all" in your email client) and we can reopen the bug report.

[Message part 3 (message/rfc822, inline)]

From: esr <at> thyrsus.com (Eric S. Raymond)
To: submit <at> debbugs.gnu.org
Subject: Python mode load failing due to some issue with tramp
Date: Mon, 29 Jun 2020 10:48:17 -0400 (EDT)

Package: emacs
Version: 26.3

Python mode load is failing due to some issue with tramp.  Likely a
loaddefs issue or something similar.  To reproduce, simply visit
a file with a .py extension.

Stack trace:

Debugger entered--Lisp error: (void-variable tramp-default-user-alist)
  (member x tramp-default-user-alist)
  (if (member x tramp-default-user-alist) tramp-default-user-alist (setq tramp-default-user-alist (cons x tramp-default-user-alist)))
  (let* ((x (cons (concat "\\`" (regexp-opt (quote ("su" "sudo" "doas" "ksu"))) "\\'") (quote (nil "root"))))) (if (member x tramp-default-user-alist) tramp-default-user-alist (setq tramp-default-user-alist (cons x tramp-default-user-alist))))
  eval-buffer(#<buffer  *load*-849947> nil "/usr/share/emacs/26.3/lisp/net/tramp-sh.el" nil t)  ; Reading at buffer position 15068
  load-with-code-conversion("/usr/share/emacs/26.3/lisp/net/tramp-sh.el" "/usr/share/emacs/26.3/lisp/net/tramp-sh.el" nil t)
  require(tramp-sh)
  eval-buffer(#<buffer  *load*> nil "/usr/share/emacs/26.3/lisp/progmodes/python.el" nil t)  ; Reading at buffer position 12340
  load-with-code-conversion("/usr/share/emacs/26.3/lisp/progmodes/python.el" "/usr/share/emacs/26.3/lisp/progmodes/python.el" nil t)
  python-mode()
  set-auto-mode-0(python-mode nil)
  set-auto-mode()
  normal-mode(t)
  after-find-file(nil t)
  find-file-noselect-1(#<buffer irkerhook.py> "~/WWW/irker/irkerhook.py" nil nil "~/public_html/irker/irkerhook.py" (5771543 66307))
  find-file-noselect("~/WWW/irker/irkerhook.py" nil nil t)
  find-file("~/WWW/irker/irkerhook.py" t)
  funcall-interactively(find-file "~/WWW/irker/irkerhook.py" t)
  call-interactively(find-file nil nil)
  command-execute(find-file)

There's a workaround: deleting (require 'tramp-sh) from early in
python.el. Of course this disables some remote features.
-- 
		<a href="http://www.catb.org/~esr/">Eric S. Raymond</a>

"They that can give up essential liberty to obtain a little temporary 
safety deserve neither liberty nor safety."
	-- Benjamin Franklin, Historical Review of Pennsylvania, 1759.

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