首页 / 问题 / 正文

Windows下Emacs中pyflakes的问题

3 投票
2 回答
2746 浏览
提问于 2025-04-16 02:58

我按照这个链接 这里 的步骤，想在Windows上设置emacs来进行Python开发。虽然一切看起来都没问题，但pyflakes却出现了问题，导致我无法进行语法检查。每次我打开一个 '.py' 文件时，都会出现这个错误：“无法启动语法检查程序 'pyflakes'，参数为 'foo.py'：搜索程序时出错：没有这样的文件或目录 pyflakes”。

有人能帮我解决这个问题吗？

更新：

这是我的 .emacs 文件

;; Abhi's  c:\.emacs file


(add-to-list 'load-path "C:/emacs/colors/")
(require 'color-theme)
(eval-after-load "color-theme"
  '(progn
     (color-theme-initialize)
     (color-theme-charcoal-black)))

(set-default-font "-outline-Monaco-normal-r-normal-normal-13-97-96-96-c-*-iso8859-1")

;Mappings to zoom in and out
(defun sacha/increase-font-size ()
  (interactive)
   (set-face-attribute 'default
                      (selected-frame)
                      :height
                      (ceiling (* 1.10
                                  (face-attribute 'default :height)))))
(defun sacha/decrease-font-size ()
  (interactive)
  (set-face-attribute 'default
                      nil
                      :height
                      (floor (* 0.9
                                  (face-attribute 'default :height)))))
(global-set-key (kbd "C-+") 'sacha/increase-font-size)
(global-set-key (kbd "C--") 'sacha/decrease-font-size)

;muse mode mappings
(add-to-list 'load-path "C:/emacs/Muse/muse-latest/lisp/")

(require 'muse-mode)
(require 'muse-latex)
(require 'muse-book)
(require 'muse-html)
(require 'muse-colors)


;To do list mode config
(add-to-list 'load-path "C:/emacs/lisp/") 
(autoload 'todo-list-mode "todo-list-mode") ;load when needed

;a simple function that opens the file,
;and switches to todo-list-mode.
(defun open-todo-list ()
  (interactive)
  (find-file "D:/AbhisLife/Tasks/TODO")
  (todo-list-mode))

;then bind to control-f12 so i can call it with one keystroke
;this works well for me because i also bind calendar to f12
(global-set-key [C-f12] 'open-todo-list)

;Python development
(require 'smart-operator)
(add-to-list 'load-path "~/.emacs.d/")
(require 'yasnippet)
(yas/initialize)
(yas/load-directory "~/.emacs.d/snippets/")
(require 'auto-complete)
(global-auto-complete-mode t)
;(require 'init-auto-complete)
(load-library "init_python")

这是我的 init_python.el 文件

(autoload 'python-mode "python-mode" "Python Mode." t)
(add-to-list 'auto-mode-alist '("\\.py\\'" . python-mode))
(add-to-list 'interpreter-mode-alist '("python" . python-mode))
(require 'python-mode)


(add-hook 'python-mode-hook
      (lambda ()
    (set-variable 'py-indent-offset 4)
    ;(set-variable 'py-smart-indentation nil)
    (set-variable 'indent-tabs-mode nil)
    (define-key py-mode-map (kbd "RET") 'newline-and-indent)
    ;(define-key py-mode-map [tab] 'yas/expand)
    ;(setq yas/after-exit-snippet-hook 'indent-according-to-mode)
    (smart-operator-mode-on)
    ))
;; pymacs
(autoload 'pymacs-apply "pymacs")
(autoload 'pymacs-call "pymacs")
(autoload 'pymacs-eval "pymacs" nil t)
(autoload 'pymacs-exec "pymacs" nil t)
(autoload 'pymacs-load "pymacs" nil t)
;(eval-after-load "pymacs"
;   (add-to-list 'pymacs-load-path "C:/Python26/MyDownloads/Pymacs/"))
(pymacs-load "ropemacs" "rope-")
(setq ropemacs-enable-autoimport t)


;(setq yas/trigger-key (kbd "C-c <kp-multiply>"))



;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Auto-completion
;;;  Integrates:
;;;   1) Rope
;;;   2) Yasnippet
;;;   all with AutoComplete.el
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
(defun prefix-list-elements (list prefix)
  (let (value)
    (nreverse
     (dolist (element list value)
      (setq value (cons (format "%s%s" prefix element) value))))))
(defvar ac-source-rope
  '((candidates
     . (lambda ()
     (prefix-list-elements (rope-completions) ac-target))))
  "Source for Rope")
(defun ac-python-find ()
  "Python `ac-find-function'."
  (require 'thingatpt)
  (let ((symbol (car-safe (bounds-of-thing-at-point 'symbol))))
    (if (null symbol)
    (if (string= "." (buffer-substring (- (point) 1) (point)))
        (point)
      nil)
      symbol)))
(defun ac-python-candidate ()
  "Python `ac-candidates-function'"
  (let (candidates)
    (dolist (source ac-sources)
      (if (symbolp source)
      (setq source (symbol-value source)))
      (let* ((ac-limit (or (cdr-safe (assq 'limit source)) ac-limit))
         (requires (cdr-safe (assq 'requires source)))
         cand)
    (if (or (null requires)
        (>= (length ac-target) requires))
        (setq cand
          (delq nil
            (mapcar (lambda (candidate)
                  (propertize candidate 'source source))
                (funcall (cdr (assq 'candidates source)))))))
    (if (and (> ac-limit 1)
         (> (length cand) ac-limit))
        (setcdr (nthcdr (1- ac-limit) cand) nil))
    (setq candidates (append candidates cand))))
    (delete-dups candidates)))
(add-hook 'python-mode-hook
      (lambda ()
         (auto-complete-mode 1)
         (set (make-local-variable 'ac-sources)
              (append ac-sources '(ac-source-rope)))
         (set (make-local-variable 'ac-find-function) 'ac-python-find)
         (set (make-local-variable 'ac-candidate-function) 'ac-python-candidate)
         (set (make-local-variable 'ac-auto-start) nil)))
;;Ryan's python specific tab completion
(defun ryan-python-tab ()
  ; Try the following:
  ; 1) Do a yasnippet expansion
  ; 2) Do a Rope code completion
  ; 3) Do an indent
  (interactive)
  (if (eql (ac-start) 0)
      (indent-for-tab-command)))
(defadvice ac-start (before advice-turn-on-auto-start activate)
  (set (make-local-variable 'ac-auto-start) t))
(defadvice ac-cleanup (after advice-turn-off-auto-start activate)
  (set (make-local-variable 'ac-auto-start) nil))
(define-key py-mode-map "\t" 'ryan-python-tab)
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; End Auto Completion
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; Auto Syntax Error Hightlight
;(require 'flymake)

;;===== PyFlakes
;; code checking via pyflakes+flymake
;(load-file "C:/.emacs.d/flymake-cursor.el")

;Commented because this is giving  mea  problem


;(when (load "flymake" t)
;  (defun flymake-pyflakes-init ()
;    (let* ((temp-file (flymake-init-create-temp-buffer-copy
;              'flymake-create-temp-inplace))
;      (local-file (file-relative-name
;           temp-file
;           (file-name-directory buffer-file-name))))
;      (list "pyflakes" (list local-file))))
;  (add-to-list 'flymake-allowed-file-name-masks
;          '("\\.py\\'" flymake-pyflakes-init)))
;(add-hook 'find-file-hook 'flymake-find-file-hook)
;
;(provide 'init_python)
错误处理 windows 配置文件 开发环境 emacs python开发 语法检查 pyflakes

2 个回答

2

如果你按照那些说明使用了apt-get，那我想这不是权限问题，所以看起来emacs就是找不到可执行文件。

flymake会调用start-process，它会在exec-path指定的目录里寻找程序（你可以按C-hv exec-path RET来查看这个路径）。

你可以在你的.emacs文件里加上(add-to-list 'exec-path "~/bin")，这样就能让emacs看到这个目录了。

(*) 如果你不是通过包管理器安装的，那我建议你检查一下权限问题。

回答于 2025-04-16 由 Python大师
分享 举报
5

终于搞定了！

感谢phils给我指明了方向。经过搜索，我找到了这个链接，并借助谷歌翻译（页面是俄文的），我终于让语法检查功能正常工作了！

以下是英文的详细步骤：

在按照常规方式安装pyflakes之后，接下来做以下几步：

  1. 在_YourPythonRootDir_\Scripts目录下创建一个名为runpyflakes.py的文件，里面写入以下代码：

    from pyflakes.scripts.pyflakes import main
main()

  2. 在_YourPythonRootDir_\Scripts目录下创建一个名为"pyflakes.bat"的文件，里面写入以下内容：

    @_YourPythonRootDir_\python.exe _YourPythonRootDir_\Scripts\runpyflakes.py %*

  3. 将_YourPythonRootDir_\Scripts添加到"Path"环境变量中

问题解决了！！！

注意：_YourPythonRootDir_指的是你电脑上Python的根目录。在我的电脑上是C:\Python26\

再次感谢Phils、Starkey，还有gelvaos！

回答于 2025-04-16 由 Python大师
分享 举报

撰写回答