Windows 8+ Emacs 24.3 +：Pymacs助手没有在30秒内启动

Question

我最近安装了Emacs24.3，并尝试使用它为Python编写代码(v3.3.2x866-64 MSI安装程序)。(我是Emacs的新手)然后，我试图通过解压缩到

"C:\Users\mmsc\AppData\Roaming\.emacs.d\emacs-for-python" 

文件夹并添加

: (load-file "~/.emacs.d/emacs-for-python/epy-init.el") 

进入C:\Users\mmsc\AppData\Roaming.emacs

启动Emacs之后，我看到了错误。

警告(初始化)：在加载c:/Users/Klein/AppData/Roaming/.emacs': error: Pymacs helper did not start within 30 seconds To ensure normal operation, you should investigate and remove the cause of the error in your initialization file. Start Emacs with the--调试-init选项时出现错误，以查看完整的错误回溯。

通过“--调试-init”，我看到了下面的信息，但是我对Emacs/Lisp知之甚少，所以我无法很容易地找到问题所在。

Debugger entered--Lisp error: (error "Pymacs helper did not start within 30 seconds")
  signal(error ("Pymacs helper did not start within 30 seconds"))
  pymacs-report-error("Pymacs helper did not start within %d seconds" 30)
  (if (accept-process-output process pymacs-timeout-at-start) nil (pymacs-report-error "Pymacs helper did not start within %d seconds" pymacs-timeout-at-start))
  (while (progn (goto-char (point-min)) (not (re-search-forward "<\\([0-9]+\\)  " nil t))) (if (accept-process-output process pymacs-timeout-at-start) nil (pymacs-report-error "Pymacs helper did not start within %d seconds" pymacs-timeout-at-start)))
  (let ((process (apply (quote start-process) "pymacs" buffer (let ((python (getenv "PYMACS_PYTHON"))) (if (or (null python) (equal python "")) pymacs-python-command python)) "-c" (concat "import sys;" " from Pymacs import main;" " main(*sys.argv[1:])") (append (and (>= emacs-major-version 24) (quote ("-f"))) (mapcar (quote expand-file-name) pymacs-load-path))))) (pymacs-kill-without-query process) (while (progn (goto-char (point-min)) (not (re-search-forward "<\\([0-9]+\\)  " nil t))) (if (accept-process-output process pymacs-timeout-at-start) nil (pymacs-report-error "Pymacs helper did not start within %d seconds" pymacs-timeout-at-start))) (let ((marker (process-mark process)) (limit-position (+ (match-end 0) (string-to-number (match-string 1))))) (while (< (marker-position marker) limit-position) (if (accept-process-output process pymacs-timeout-at-start) nil (pymacs-report-error "Pymacs helper probably was interrupted at start")))))
  (progn (let ((process (apply (quote start-process) "pymacs" buffer (let ((python ...)) (if (or ... ...) pymacs-python-command python)) "-c" (concat "import sys;" " from Pymacs import main;" " main(*sys.argv[1:])") (append (and (>= emacs-major-version 24) (quote ...)) (mapcar (quote expand-file-name) pymacs-load-path))))) (pymacs-kill-without-query process) (while (progn (goto-char (point-min)) (not (re-search-forward "<\\([0-9]+\\)   " nil t))) (if (accept-process-output process pymacs-timeout-at-start) nil (pymacs-report-error "Pymacs helper did not start within %d seconds" pymacs-timeout-at-start))) (let ((marker (process-mark process)) (limit-position (+ (match-end 0) (string-to-number (match-string 1))))) (while (< (marker-position marker) limit-position) (if (accept-process-output process pymacs-timeout-at-start) nil (pymacs-report-error "Pymacs helper probably was interrupted at start"))))) (goto-char (match-end 0)) (let ((reply (read (current-buffer)))) (if (and (pymacs-proper-list-p reply) (= (length reply) 2) (eq (car reply) (quote version))) (if (string-equal (cadr reply) "0.25") nil (pymacs-report-error "Pymacs Lisp version is 0.25, Python is %s" (cadr reply))) (pymacs-report-error "Pymacs got an invalid initial reply"))))
  (unwind-protect (progn (let ((process (apply (quote start-process) "pymacs" buffer (let (...) (if ... pymacs-python-command python)) "-c" (concat "import sys;" " from Pymacs import main;" " main(*sys.argv[1:])") (append (and ... ...) (mapcar ... pymacs-load-path))))) (pymacs-kill-without-query process) (while (progn (goto-char (point-min)) (not (re-search-forward "<\\([0-9]+\\)  " nil t))) (if (accept-process-output process pymacs-timeout-at-start) nil (pymacs-report-error "Pymacs helper did not start within %d seconds" pymacs-timeout-at-start))) (let ((marker (process-mark process)) (limit-position (+ (match-end 0) (string-to-number ...)))) (while (< (marker-position marker) limit-position) (if (accept-process-output process pymacs-timeout-at-start) nil (pymacs-report-error "Pymacs helper probably was interrupted at start"))))) (goto-char (match-end 0)) (let ((reply (read (current-buffer)))) (if (and (pymacs-proper-list-p reply) (= (length reply) 2) (eq (car reply) (quote version))) (if (string-equal (cadr reply) "0.25") nil (pymacs-report-error "Pymacs Lisp version is 0.25, Python is %s" (cadr reply))) (pymacs-report-error "Pymacs got an invalid initial reply")))) (set-match-data save-match-data-internal (quote evaporate)))
  (let ((save-match-data-internal (match-data))) (unwind-protect (progn (let ((process (apply (quote start-process) "pymacs" buffer (let ... ...) "-c" (concat "import sys;" " from Pymacs import main;" " main(*sys.argv[1:])") (append ... ...)))) (pymacs-kill-without-query process) (while (progn (goto-char (point-min)) (not (re-search-forward "<\\([0-9]+\\)   " nil t))) (if (accept-process-output process pymacs-timeout-at-start) nil (pymacs-report-error "Pymacs helper did not start within %d seconds" pymacs-timeout-at-start))) (let ((marker (process-mark process)) (limit-position (+ ... ...))) (while (< (marker-position marker) limit-position) (if (accept-process-output process pymacs-timeout-at-start) nil (pymacs-report-error "Pymacs helper probably was interrupted at start"))))) (goto-char (match-end 0)) (let ((reply (read (current-buffer)))) (if (and (pymacs-proper-list-p reply) (= (length reply) 2) (eq (car reply) (quote version))) (if (string-equal (cadr reply) "0.25") nil (pymacs-report-error "Pymacs Lisp version is 0.25, Python is %s" (cadr reply))) (pymacs-report-error "Pymacs got an invalid initial reply")))) (set-match-data save-match-data-internal (quote evaporate))))
  (save-current-buffer (set-buffer buffer) (erase-buffer) (buffer-disable-undo) (pymacs-set-buffer-multibyte nil) (set-buffer-file-coding-system (quote raw-text)) (let ((save-match-data-internal (match-data))) (unwind-protect (progn (let ((process (apply ... "pymacs" buffer ... "-c" ... ...))) (pymacs-kill-without-query process) (while (progn (goto-char ...) (not ...)) (if (accept-process-output process pymacs-timeout-at-start) nil (pymacs-report-error "Pymacs helper did not start within %d seconds" pymacs-timeout-at-start))) (let ((marker ...) (limit-position ...)) (while (< ... limit-position) (if ... nil ...)))) (goto-char (match-end 0)) (let ((reply (read ...))) (if (and (pymacs-proper-list-p reply) (= ... 2) (eq ... ...)) (if (string-equal ... "0.25") nil (pymacs-report-error "Pymacs Lisp version is 0.25, Python is %s" ...)) (pymacs-report-error "Pymacs got an invalid initial reply")))) (set-match-data save-match-data-internal (quote evaporate)))))
  (let ((buffer (get-buffer-create "*Pymacs*"))) (save-current-buffer (set-buffer buffer) (erase-buffer) (buffer-disable-undo) (pymacs-set-buffer-multibyte nil) (set-buffer-file-coding-system (quote raw-text)) (let ((save-match-data-internal (match-data))) (unwind-protect (progn (let ((process ...)) (pymacs-kill-without-query process) (while (progn ... ...) (if ... nil ...)) (let (... ...) (while ... ...))) (goto-char (match-end 0)) (let ((reply ...)) (if (and ... ... ...) (if ... nil ...) (pymacs-report-error "Pymacs got an invalid initial reply")))) (set-match-data save-match-data-internal (quote evaporate))))) (if (not pymacs-use-hash-tables) (setq pymacs-weak-hash t) (if pymacs-used-ids (progn (let ((pymacs-transit-buffer buffer) (pymacs-forget-mutability t) (pymacs-gc-inhibit t)) (pymacs-call "zombie_python" pymacs-used-ids)) (setq pymacs-used-ids nil))) (setq pymacs-weak-hash (make-hash-table :weakness (quote value))) (if (boundp (quote post-gc-hook)) (add-hook (quote post-gc-hook) (quote pymacs-schedule-gc)) (setq pymacs-gc-timer (run-at-time 20 20 (quote pymacs-schedule-gc))))) (setq pymacs-transit-buffer buffer) (let ((modules pymacs-load-history)) (setq pymacs-load-history nil) (if (and modules (yes-or-no-p "Reload modules in previous session? ")) (progn (mapc (function (lambda (args) (condition-case err ... ...))) modules)))))
  pymacs-start-services()
  (if (and pymacs-transit-buffer (buffer-name pymacs-transit-buffer) (get-buffer-process pymacs-transit-buffer)) nil (if pymacs-weak-hash (progn (if (or (eq pymacs-auto-restart t) (and (eq pymacs-auto-restart (quote ask)) (yes-or-no-p "The Pymacs helper died.  Restart it? "))) nil (pymacs-report-error "There is no Pymacs helper!")))) (pymacs-start-services))
  pymacs-serve-until-reply("eval" (pymacs-print-for-apply (quote "pymacs_load_helper") (quote ("ropemacs" "rope-" nil))))
  pymacs-call("pymacs_load_helper" "ropemacs" "rope-" nil)
  (let ((lisp-code (pymacs-call "pymacs_load_helper" module prefix noerror))) (cond (lisp-code (let ((result (eval lisp-code))) (add-to-list (quote pymacs-load-history) (list module prefix noerror) (quote append)) (message "Pymacs loading %s...done" module) (run-hook-with-args (quote pymacs-after-load-functions) module) result)) (noerror (message "Pymacs loading %s...failed" module) nil)))
  pymacs-load("ropemacs" "rope-")
  setup-ropemacs()
  (progn (setup-ropemacs) (autoload (quote virtualenv-activate) "virtualenv" "Activate a Virtual Environment specified by PATH" t) (autoload (quote virtualenv-workon) "virtualenv" "Activate a Virtual Environment present using virtualenvwrapper" t) (add-hook (quote python-mode-hook) (lambda nil (if (buffer-file-name) (flymake-mode)))) (defun workon-postactivate (virtualenv) (require (quote virtualenv)) (virtualenv-activate virtualenv) (desktop-change-dir virtualenv)))
  (lambda nil (progn (setup-ropemacs) (autoload (quote virtualenv-activate) "virtualenv" "Activate a Virtual Environment specified by PATH" t) (autoload (quote virtualenv-workon) "virtualenv" "Activate a Virtual Environment present using virtualenvwrapper" t) (add-hook (quote python-mode-hook) (lambda nil (if (buffer-file-name) (flymake-mode)))) (defun workon-postactivate (virtualenv) (require (quote virtualenv)) (virtualenv-activate virtualenv) (desktop-change-dir virtualenv))))()
  funcall((lambda nil (progn (setup-ropemacs) (autoload (quote virtualenv-activate) "virtualenv" "Activate a Virtual Environment specified by PATH" t) (autoload (quote virtualenv-workon) "virtualenv" "Activate a Virtual Environment present using virtualenvwrapper" t) (add-hook (quote python-mode-hook) (lambda nil (if (buffer-file-name) (flymake-mode)))) (defun workon-postactivate (virtualenv) (require (quote virtualenv)) (virtualenv-activate virtualenv) (desktop-change-dir virtualenv)))))
  eval((funcall (quote (lambda nil (progn (setup-ropemacs) (autoload (quote virtualenv-activate) "virtualenv" "Activate a Virtual Environment specified by PATH" t) (autoload (quote virtualenv-workon) "virtualenv" "Activate a Virtual Environment present using virtualenvwrapper" t) (add-hook (quote python-mode-hook) (lambda nil (if (buffer-file-name) (flymake-mode)))) (defun workon-postactivate (virtualenv) (require (quote virtualenv)) (virtualenv-activate virtualenv) (desktop-change-dir virtualenv)))))))
  eval-after-load(python (progn (setup-ropemacs) (autoload (quote virtualenv-activate) "virtualenv" "Activate a Virtual Environment specified by PATH" t) (autoload (quote virtualenv-workon) "virtualenv" "Activate a Virtual Environment present using virtualenvwrapper" t) (add-hook (quote python-mode-hook) (lambda nil (if (buffer-file-name) (flymake-mode)))) (defun workon-postactivate (virtualenv) (require (quote virtualenv)) (virtualenv-activate virtualenv) (desktop-change-dir virtualenv))))
  eval-buffer(#<buffer  *load*-819053> nil "c:/Users/mmsc/AppData/Roaming/.emacs.d/emacs-for-python/epy-python.el" nil t)  ; Reading at buffer position 4662
  load-with-code-conversion("c:/Users/mmsc/AppData/Roaming/.emacs.d/emacs-for-python/epy-python.el" "c:/Users/mmsc/AppData/Roaming/.emacs.d/emacs-for-python/epy-python.el" nil t)
  require(epy-python)
  eval-buffer(#<buffer  *load*-283406> nil "c:/Users/mmsc/AppData/Roaming/.emacs.d/emacs-for-python/epy-init.el" nil t)  ; Reading at buffer position 476
  load-with-code-conversion("c:/Users/mmsc/AppData/Roaming/.emacs.d/emacs-for-python/epy-init.el" "c:/Users/mmsc/AppData/Roaming/.emacs.d/emacs-for-python/epy-init.el" nil nil)
  load("c:/Users/mmsc/AppData/Roaming/.emacs.d/emacs-for-python/epy-init.el" nil nil t)
  load-file("C:\\Users\\mmsc\\AppData\\Roaming\\.emacs.d\\emacs-for-python\\epy-init.el")
  eval-buffer(#<buffer  *load*> nil "c:/Users/mmsc/AppData/Roaming/.emacs" nil t)  ; Reading at buffer position 656
  load-with-code-conversion("c:/Users/mmsc/AppData/Roaming/.emacs" "c:/Users/mmsc/AppData/Roaming/.emacs" t t)
  load("~/.emacs" t t)

我试图从Internet上搜索一些帮助，但大多数都是针对Linux/Unix的。是否有人在Windows下使用Emacs和Python，并且知道这意味着什么，以及我如何修复它？

谢谢!

Answer 1

这对评论来说有点太过分了：

    (let ((process
           (apply 'start-process "pymacs" buffer
                  (let ((python (getenv "PYMACS_PYTHON")))
                    (if (or (null python) (equal python ""))
                        pymacs-python-command
                      python))
                  "-c" (concat "import sys;"
                               " from Pymacs import main;"
                               " main(*sys.argv[1:])")
                  (append
                   (and (>= emacs-major-version 24) '("-f"))
                   (mapcar 'expand-file-name pymacs-load-path)))))

这是在*Pymacs*缓冲区中启动进程的Pymacs代码的一部分。由此可以推断，Pymacs将首先搜索环境变量$PYMACS_PYTHON，如果它不存在，或者它的值是空字符串，那么它将尝试pymacs-python-command，默认情况下它是"python"。因此，它将发出这样的呼吁：

$ python -c 'import sys; from Pymacs import main; main(*sys.argv[1:])'

-f有一个问题--我不知道哪个版本的Python接受这个参数，但我没有。这段代码的意图很清楚--它可能必须在pymacs-load-path上加载文件，但对我来说，这个变量的值是nil --所以我认为这段代码从未运行过。无论如何，这个论点似乎并没有坏处，对我来说，它的启动与它或不与它完全一样。

因此，如果您尝试在控制台中运行上述命令，并获得如下内容：

(version "0.25")

然后，这段代码运行良好，否则，您将得到一些错误，这将帮助您识别问题。记住，它可能不仅仅是python。要么是$PYMACS_PYHON，要么是pymacs-python-command。

Answer 2

我也有同样的症状，但我的问题却是一个旧的pymacs.el和一个新的Pymacs。显然，Pymacs改变了模块界面，我不得不去寻找流浪的pymacs.el。因此，pymacs.el是由apt-get在一个奇怪的位置安装的。你必须确保字节码文件也没有了。