我在Windows上的Wing IDE内部运行PyLint。我有一个子目录(包)在我的项目和包内,我从顶层导入一个模块,即。

__init__.py
myapp.py
one.py
subdir\
    __init__.py
    two.py

在two.py中,我导入了一个,这在运行时工作得很好,因为顶层目录(myapp.py从其中运行)在Python路径中。然而,当我在two.py上运行PyLint时,它会给我一个错误:

F0401: Unable to import 'one'

我怎么解决这个问题?


当前回答

1)系统。Path是一个列表。

2)有时问题出在系统。Path不是你的virtualenv。路径,你想在你的virtualenv中使用pylint

3)就像上面说的,使用init-hook(注意' and " pylint的解析是严格的)

[Master]
init-hook='sys.path = ["/path/myapps/bin/", "/path/to/myapps/lib/python3.3/site-packages/", ... many paths here])'

or

[Master]
init-hook='sys.path = list(); sys.path.append("/path/to/foo")'

.. 而且

pylint --rcfile /path/to/pylintrc /path/to/module.py

其他回答

创建.pylintrc并添加

[MASTER]
init-hook="from pylint.config import find_pylintrc;
import os, sys; sys.path.append(os.path.dirname(find_pylintrc()))"

如果使用vscode,请确保包目录不在_pychache__目录中。

在这两个目录中都有一个空的__init__.py文件来让python知道dirs是模块吗?

当你不是从文件夹中运行时(比如可能从pylint的文件夹中运行,尽管我没有用过),基本的大纲是:

topdir\
  __init__.py
  functions_etc.py
  subdir\
    __init__.py
    other_functions.py

这就是python解释器如何在不引用当前目录的情况下感知模块,因此如果pylint从它自己的绝对路径运行,它将能够以topdir的身份访问functions_etc.py。Functions_etc或topdir.subdir。other_functions,前提是topdir在PYTHONPATH上。

UPDATE: If the problem is not the __init__.py file, maybe just try copying or moving your module to c:\Python26\Lib\site-packages -- that is a common place to put additional packages, and will definitely be on your pythonpath. If you know how to do Windows symbolic links or the equivalent (I don't!), you could do that instead. There are many more options here: http://docs.python.org/install/index.html, including the option of appending sys.path with the user-level directory of your development code, but in practice I usually just symbolically link my local development dir to site-packages - copying it over has the same effect.

I have been struggling with this a lot and eventually found out something that was not described here. Here are my 2 cents to this issue: I am using VS Code on Windows, using virtual env. For some reasons, the pylint executable is called epylint and not pylint. In my script or from CLI prompt, I was running pylint ./xxx and the system was launching a pylint it found somewhere else but not the appropriate one. I just added an e in my shell script and my 'Unable to import' issues eventually vanished.

我也有同样的问题,因为我找不到答案,我希望这可以帮助任何有类似问题的人。

我使用flymake与附页。基本上,我所做的就是添加一个dired-mode-hook来检查dired目录是否是python包目录。如果是,我将它添加到PYTHONPATH。在我的例子中,我认为一个目录是一个python包,如果它包含一个名为“setup.py”的文件。

;;;;;;;;;;;;;;;;;
;; PYTHON PATH ;;
;;;;;;;;;;;;;;;;;

(defun python-expand-path ()
  "Append a directory to the PYTHONPATH."
  (interactive
   (let ((string (read-directory-name 
          "Python package directory: " 
          nil 
          'my-history)))
     (setenv "PYTHONPATH" (concat (expand-file-name string)
                  (getenv ":PYTHONPATH"))))))

(defun pythonpath-dired-mode-hook ()
  (let ((setup_py (concat default-directory "setup.py"))
    (directory (expand-file-name default-directory)))
    ;;   (if (file-exists-p setup_py)
    (if (is-python-package-directory directory)
    (let ((pythonpath (concat (getenv "PYTHONPATH") ":" 
                  (expand-file-name directory))))
      (setenv "PYTHONPATH" pythonpath)
      (message (concat "PYTHONPATH=" (getenv "PYTHONPATH")))))))

(defun is-python-package-directory (directory)
  (let ((setup_py (concat directory "setup.py")))
    (file-exists-p setup_py)))

(add-hook 'dired-mode-hook 'pythonpath-dired-mode-hook)

希望这能有所帮助。