Question

emacs中的Flymake正常工作，直到更新到Yosemite。但现在它在抱怨：

Flymake: Failed to launch syntax check process 'pychecker' with args (<filename>_flymake.py): Searching for program: no such file or directory, pychecker. Flymake will be switched OFF.

其中<filename>是打开的缓冲区中文件的名称。这是我的flymake配置：

(add-to-list 'load-path "~/.emacs.d/")
;; Setup for Flymake code checking.
(require 'flymake)
(load-library "flymake-cursor")

;; Script that flymake uses to check code. This script must be
;; present in the system path.
(setq pycodechecker "pychecker")

(when (load "flymake" t)
  (defun flymake-pycodecheck-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 pycodechecker (list local-file))))
  (add-to-list 'flymake-allowed-file-name-masks
               '("\\.py\\'" flymake-pycodecheck-init)))

(add-hook 'python-mode-hook 'flymake-mode)

此处/usr/local/bin/pychecker：

#! /bin/sh

pyflakes "$1"
pep8 --repeat "$1" --max-line-length=80 --ignore=E123,E133,E226,E501
true

此处$PATH：

/Users/<user>/Envs/<venv>/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/X11/bin:/usr/texbin

其中<user>是我的用户名，<venv>是当前有效的虚拟环境。

如果从shell运行，

pychecker可以正常工作。

我通过键入emacsgui（alias emacsgui='open -a emacs'）从shell启动emacs，通常激活venv。我也尝试打开emacs而没有激活任何venv，但问题仍然存在。有什么问题？

Answer 1

我将其添加到我的.emacs文件中解决了：

(defun set-exec-path-from-shell-PATH ()
  (let ((path-from-shell (replace-regexp-in-string
                          "[ \t\n]*$"
                          ""
                          (shell-command-to-string "$SHELL --login -i -c 'echo $PATH'"))))
    (setenv "PATH" path-from-shell)
    (setq exec-path (split-string path-from-shell path-separator))))

(when (and window-system (eq system-type 'darwin))
  ;; When started from Emacs.app or similar, ensure $PATH
  ;; is the same the user would see in Terminal.app
  (set-exec-path-from-shell-PATH))

Mac Yosemite上的Emacs flymake

1 个答案: