python – Pylint在OS X上不使用Emacs GUI;从命令行工作

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从命令行(emacs filename.py)运行时,flymake和pylint完美地协同工作.错误被正确突出显示. (虽然我无法工具提示悬停以获取错误详细信息,因为它是文本模式.)

当从GUI(Carbon Emacs)运行时,Flymake立即返回,并且文件中的第一行突出显示错误“in< module>”.第一行甚至在“Hello World”脚本上显示错误.)我想让它在GUI模式下正常工作,这样我就可以用鼠标导航(我知道,我知道)并使用工具提示来获取详细信息关于pylint报告的错误.

我用“easy_install pylint”安装了pylint,pylint和epylint脚本在“?/ py / scripts”中.我将该目录添加到我的.bashrc中的PATH中：

export PATH=$PATH:~/py/scripts

(我的.profile是我的.bashrc的符号链接.)

我意识到Emacs-GUI没有从我的.bashrc加载路径,所以我创建了一个?/ .MacOSX / environment.plist文件,用我在终端中看到的完整PATH设置PATH变量.

现在在Emacs-GUI“(getenv”PATH“)中”输出显示正确：

"/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/bin:/usr/local/git/bin:/usr/X11/bin:/Users/schof/py/scripts:/usr/X11R6/bin"

同样,“C-h v exec-path”的输出显示正确：

("/usr/bin" "/bin" "/usr/sbin" "/sbin" "/usr/local/bin" "/usr/local/git/bin" "/usr/X11/bin" "/Users/schof/py/scripts" "/Applications/Emacs.app/Contents/MacOS/libexec" "/Applications/Emacs.app/Contents/MacOS/bin" "/usr/X11R6/bin")

这让我对如何解决这个问题没有进一步的想法.我绝不是一个emacs大师,所以我可能会遗漏一些明显的东西;随时可以询问更多细节.

OS X 10.6.7;碳Emacs 22.3.1; pylint 0.23.0.

来自.emacs的Flymake / Pylint代码：

  (when (load "flymake" t)
      (defun flymake-pylint-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 "epylint" (list local-file))))

      (add-to-list 'flymake-allowed-file-name-masks
               '("\\.py\\'" flymake-pylint-init)))


;; Auto-start flymake-mode when you go into python-mode
(add-hook 'python-mode-hook
          '(lambda ()
                   (setq python-indent 4)
                   (flymake-mode)))

更新2011-04-05以回应@ sanityinc的回答：

* message *中的flymake的详细级别3输出:(这不会使问题的根源对我来说很明显.)

starting syntax check as new-line has been seen
flymake is running: nil
file /Users/schof/pytest.py, init=flymake-pylint-init [3 times]
create-temp-inplace: file=/Users/schof/pytest.py temp=/Users/schof/pytest_flymake.py
saved buffer pytest.py in file /Users/schof/pytest_flymake.py
started process 3221, command=(epylint pytest_flymake.py), dir=/Users/schof/
received 704 byte(s) of output from process 3221
file /Users/schof/pytest.py, init=flymake-pylint-init
parsed 'Traceback (most recent call last):', no line-err-info
parse line: file-idx=2 line-idx=3 file=/Users/schof/py/scripts/epylint line=4 text=in <module>
get-real-file-name: file-name=/Users/schof/py/scripts/epylint real-name=~/py/scripts/epylint
parsed '  File "/Users/schof/py/scripts/epylint", line 4, in <module>', got line-err-info
parsed '    import pkg_resources', no line-err-info
parse line: file-idx=2 line-idx=3 file=/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py line=2556 text=in <module>
get-real-file-name: file-name=/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py real-name=/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py
parsed '  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py", line 2556, in <module>', got line-err-info
parsed '    working_set.require(__requires__)', no line-err-info
parse line: file-idx=2 line-idx=3 file=/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py line=620 text=in require
get-real-file-name: file-name=/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py real-name=/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py
parsed '  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py", line 620, in require', got line-err-info
parsed '    needed = self.resolve(parse_requirements(requirements))', no line-err-info
parse line: file-idx=2 line-idx=3 file=/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py line=518 text=in resolve
get-real-file-name: file-name=/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py real-name=/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py
parsed '  File "/System/Library/Frameworks/Python.framework/Versions/2.6/Extras/lib/python/pkg_resources.py", line 518, in resolve', got line-err-info
parsed '    raise DistributionNotFound(req)  # XXX put more info here', no line-err-info
parsed 'pkg_resources.DistributionNotFound: pylint==0.23.0', no line-err-info
file /Users/schof/pytest.py, init=flymake-pylint-init
process 3221 exited with code 1
cleaning up using flymake-simple-cleanup
deleted file /Users/schof/pytest_flymake.py
created an overlay at (1-18)
pytest.py: 4 error(s), 0 warning(s) in 0.47 second(s)

为了比较,这是从emacs文本模式运行时flymake verbosity 3的输出. “hello world”文件通过了所有的pylint测试.

starting syntax check as new-line has been seen                                                                         
flymake is running: nil                                                                                                 
file /Users/schof/pytest.py, init=flymake-pylint-init [3 times]                                                         
create-temp-inplace: file=/Users/schof/pytest.py temp=/Users/schof/pytest_flymake.py                                    
saved buffer pytest.py in file /Users/schof/pytest_flymake.py                                                           
started process 3395, command=(epylint pytest_flymake.py), dir=/Users/schof/                                            
file /Users/schof/pytest.py, init=flymake-pylint-init                                                                   
process 3395 exited with code 0                                                                                         
cleaning up using flymake-simple-cleanup                                                                                
deleted file /Users/schof/pytest_flymake.py                                                                             
pytest.py: 0 error(s), 0 warning(s) in 0.30 second(s) 

解决方法:

要更清楚地看到出现了什么问题,请增加flymake的日志级别,然后查看* messages *：

(setq flymake-log-level 3)

没有这些信息,我不会推测可能存在的问题.

有一个避免环境.plist方法,BTW的技巧;您可以让Emacs向您的常规shell询问您的首选路径：

(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))

(这是从my Emacs config开始的,其中包含一堆flymake代码,包括使用pyflakes的python配置,所以你可能想看看.)

更新：既然你已经添加了详细输出,我看到你的?/ py / epylint程序找不到pkg_resources,它指向PYTHONPATH错误.因此,使用上述技术的变体,试试这个：

(defun setenv-from-shell (varname)
  (setenv varname (replace-regexp-in-string
                   "[ \t\n]*$"
                   ""
                   (shell-command-to-string (concat "$SHELL --login -i -c 'echo $" varname "'")))))

(setenv-from-shell "PYTHONPATH")

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