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bug#18582: 24.4.50; [python.el] completion error
From: |
Rasmus |
Subject: |
bug#18582: 24.4.50; [python.el] completion error |
Date: |
Wed, 01 Oct 2014 16:56:56 +0200 |
User-agent: |
Gnus/5.130012 (Ma Gnus v0.12) Emacs/24.4.50 (gnu/linux) |
Hi,
Stefan Monnier <monnier@iro.umontreal.ca> writes:
>> Backtrace:
>> Debugger entered--Lisp error: (wrong-type-argument integer-or-marker-p nil)
>> buffer-substring-no-properties(nil 5)
>> python-shell-completion-at-point(#<process Python>)
>
> Right, that looks like the same bug you were hitting with `trunk' (and
> hence a different bug from the one I fixed). But it makes no sense.
> The only call to buffer-substring-no-properties in
> python-shell-completion-at-point (in emacs-24) is of the form:
>
> (buffer-substring-no-properties
> (line-beginning-position) end)
>
> and I can't imagine how line-beginning-position could return nil.
> Are you sure you don't have another python.el or python.elc that gets in
> the way?
I get the error as well when I load Emacs with -Q. I get the error
when I do find-library python eval-buffer before loading any .py
files. Find library points to python.el.gz in
/usr/share/emacs/24.4.50/lisp/progmodes/. When I do M-: (md5
(current-buffer)) in python.el.gz I get
ce0db2157b281b8ac7cb8461da88caa7. There's no age difference:
-rw-r--r-- 1 root root 134983 Sep 29 14:10 python.elc
-rw-r--r-- 1 root root 41279 Sep 29 14:00 python.el.gz
Note that for the error to come, I must start the python-shell first
(C-c C-z).
> Or maybe your python.el was not properly recompiled so you
> still use the python.elc from the trunk?
I had to rename my bzr folder to get the other branch so I doubt it.
> What if you M-x load-library RET python.el RET (to load the non-compiled
> version)?
See above.
I get this backtrace now which have new stuff (below).
The error occurs here:
(let* ((last-prompt-end (cdr (python-util-comint-last-prompt)))
(import-statement
(when (string-match-p
(rx (* space) word-start (or "from" "import") word-end space)
(buffer-substring-no-properties last-prompt-end (point)))
Last-prompt-end (and thus (python-util-comint-last-prompt)) is nil but
should be a character position according to the docstring. But
last-prompt-end is just comint-last-prompt is emacs24. And it's nil.
I'm guessing it shouldn't be. Why? No clue. . .
Debugger entered--Lisp error: (wrong-type-argument integer-or-marker-p nil)
buffer-substring-no-properties(nil 4)
(string-match-p "[[:space:]]*\\<\\(?:from\\|import\\)\\>[[:space:]]"
(buffer-substring-no-properties last-prompt-end (point)))
(if (string-match-p "[[:space:]]*\\<\\(?:from\\|import\\)\\>[[:space:]]"
(buffer-substring-no-properties last-prompt-end (point))) (progn
(buffer-substring-no-properties last-prompt-end (point))))
(let* ((last-prompt-end (cdr (python-util-comint-last-prompt)))
(import-statement (if (string-match-p
"[[:space:]]*\\<\\(?:from\\|import\\)\\>[[:space:]]"
(buffer-substring-no-properties last-prompt-end (point))) (progn
(buffer-substring-no-properties last-prompt-end (point))))) (start
(save-excursion (if (not (re-search-backward
"[[:space:]]\\|[([{]\\|[])}]\\|\\(?:[^\"'\\]\\|\\=\\|\\(?:[^\\]\\|\\=\\)\\\\\\(?:\\\\\\\\\\)*[\"']\\)\\(?:\\\\\\\\\\)*\\(\\(?:\"\"\"\\|'''\\|[\"']\\)\\)"
last-prompt-end t 1)) last-prompt-end (forward-char (length
(match-string-no-properties 0))) (point)))) (end (point))) (list start end
(completion-table-dynamic (apply-partially (function
python-shell-completion-get-completions) process import-statement))))
python-shell-completion-at-point(#<process Python>)
(progn (python-shell-completion-at-point process))
(if process (progn (python-shell-completion-at-point process)))
(let ((process (python-shell-get-process))) (if process (progn
(python-shell-completion-at-point process))))
python-completion-at-point()
completion--capf-wrapper(python-completion-at-point all)
run-hook-wrapped(completion--capf-wrapper python-completion-at-point all)
completion-at-point()
funcall-interactively(completion-at-point)
call-interactively(completion-at-point nil nil)
command-execute(completion-at-point)
Thanks,
Rasmus
--
C is for Cookie