Question

我使用pip在我的Win 7 64bit上安装了python-magic（0.4.6）。然后我安装了cygwin 1.7.33-2以提供所需的dll并创建了一个名为magic1.dll的cygmagic-1.dll副本（参见

当我运行Python 2.7.6 32位shell时，＆＃34;导入魔法＆＃34;工作正常。

但是，

magic.from_file('c:\user\username\sample.txt')

给了我一个

Traceback (most recent call last):  
  File "<stdin>", line 1, in <module>  
  File "c:\Python27\lib\site-packages\magic.py", line 119, in from_file    
    m = _get_magic_type(mime)  
  File "c:\Python27\lib\site-packages\magic.py", line 107, in _get_magic_type  
    i = instances.__dict__[mime] = Magic(mime=mime)  
  File "c:\Python27\lib\site-packages\magic.py", line 55, in __init__
    self.cookie = magic_open(flags)  

WindowsError: exception: access violation writing 0x00000000

任何想法是什么导致此错误以及我如何解决它？谢谢你的帮助！

Answer 1

GnuWin32 file package有一个32位的magic1.dll，以及它的依赖项regex2.dll和zlib1.dll。我从测试中知道这个版本适用于python-magic。下面概述了我在32位Python 3.3中测试它的步骤。

将文件解压缩到GnuWin32的安装目录：

C:\Temp>set "GNU=C:\Program Files (x86)\GNU"
C:\Temp>7z x -y -o"%GNU%" file-5.03-bin.zip > nul
C:\Temp>7z x -y -o"%GNU%" file-5.03-dep.zip > nul

设置环境以查找DLL和魔术文件：

C:\Temp>set PATH=%PATH%;%GNU%\bin
C:\Temp>set MAGIC=%GNU%\share\misc\magic

安装python-magic：

C:\Temp>py -3.3-32 -m pip install python-magic  
Collecting python-magic
  Downloading python-magic-0.4.6.tar.gz
Installing collected packages: python-magic
  Running setup.py install for python-magic
Successfully installed python-magic-0.4.6

验证它是否有效：

C:\Temp>py -3.3-32                            
Python 3.3.5 (v3.3.5:62cf4e77f785, Mar  9 2014, 10:37:12) 
[MSC v.1600 32 bit (Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys, magic
>>> magic.from_file(sys.executable)
b'PE32 executable for MS Windows (console) Intel 80386 32-bit'

python-magic WindowsError：访问冲突写入0x00000000

1 个答案: